OpenSim-Test/OpenSim/Data/PGSQL/PGSQLSimulationData.cs

/*
 * Copyright (c) Contributors, http://opensimulator.org/
 * See CONTRIBUTORS.TXT for a full list of copyright holders.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *     * Redistributions of source code must retain the above copyright
 *       notice, this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above copyright
 *       notice, this list of conditions and the following disclaimer in the
 *       documentation and/or other materials provided with the distribution.
 *     * Neither the name of the OpenSimulator Project nor the
 *       names of its contributors may be used to endorse or promote products
 *       derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY
 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

using System;
using System.Collections.Generic;
using System.Data;
using System.Drawing;
using System.IO;
using System.Reflection;
using System.Threading;
using log4net;
using OpenMetaverse;
using OpenSim.Framework;
using OpenSim.Region.Framework.Interfaces;
using OpenSim.Region.Framework.Scenes;
using OpenSim.Data;
using Npgsql;

namespace OpenSim.Data.PGSQL
{
    /// <summary>
    /// A PGSQL Interface for the Region Server.
    /// </summary>
    public class PGSQLSimulationData : ISimulationDataStore
    {
        private const string _migrationStore = "RegionStore";
        private const string LogHeader = "[REGION DB PGSQL]";

        // private static FileSystemDataStore Instance = new FileSystemDataStore();
        private static readonly ILog _Log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);

        /// <summary>
        /// The database manager
        /// </summary>
        private PGSQLManager _Database;
        private string m_connectionString;
        protected virtual Assembly Assembly
        {
            get { return GetType().Assembly; }
        }

        public PGSQLSimulationData()
        {
        }

        public PGSQLSimulationData(string connectionString)
        {
            Initialise(connectionString);
        }

        /// <summary>
        /// Initialises the region datastore
        /// </summary>
        /// <param name="connectionString">The connection string.</param>
        public void Initialise(string connectionString)
        {
            m_connectionString = connectionString;
            _Database = new PGSQLManager(connectionString);

            using (NpgsqlConnection conn = new NpgsqlConnection(connectionString))
            {
                conn.Open();
                //New Migration settings
                Migration m = new Migration(conn, Assembly, "RegionStore");
                m.Update();
            }
        }

        /// <summary>
        /// Dispose the database
        /// </summary>
        public void Dispose() { }

        #region SceneObjectGroup region for loading and Store of the scene.

        /// <summary>
        /// Loads the objects present in the region.
        /// </summary>
        /// <param name="regionUUID">The region UUID.</param>
        /// <returns></returns>
        public List<SceneObjectGroup> LoadObjects(UUID regionUUID)
        {
            UUID lastGroupID = UUID.Zero;

            Dictionary<UUID, SceneObjectPart> prims = new Dictionary<UUID, SceneObjectPart>();
            Dictionary<UUID, SceneObjectGroup> objects = new Dictionary<UUID, SceneObjectGroup>();
            SceneObjectGroup grp = null;

            string sql = @"SELECT *,
                           CASE WHEN prims.""UUID"" = prims.""SceneGroupID"" THEN 0 ELSE 1 END as sort
                            FROM prims
                            LEFT JOIN primshapes ON prims.""UUID"" = primshapes.""UUID""
                            WHERE ""RegionUUID"" = :RegionUUID
                            ORDER BY ""SceneGroupID"" asc, sort asc, ""LinkNumber"" asc";

            using (NpgsqlConnection conn = new NpgsqlConnection(m_connectionString))
            using (NpgsqlCommand command = new NpgsqlCommand(sql, conn))
            {
                command.Parameters.Add(_Database.CreateParameter("regionUUID", regionUUID));
                conn.Open();
                using (NpgsqlDataReader reader = command.ExecuteReader())
                {
                    while (reader.Read())
                    {
                        SceneObjectPart sceneObjectPart = BuildPrim(reader);
                        if (reader["Shape"] is DBNull)
                            sceneObjectPart.Shape = PrimitiveBaseShape.Default;
                        else
                            sceneObjectPart.Shape = BuildShape(reader);

                        prims[sceneObjectPart.UUID] = sceneObjectPart;

                        UUID groupID = new UUID((Guid)reader["SceneGroupID"]);

                        if (groupID != lastGroupID) // New SOG
                        {
                            if (grp != null)
                                objects[grp.UUID] = grp;

                            lastGroupID = groupID;

                            // There sometimes exist OpenSim bugs that 'orphan groups' so that none of the prims are
                            // recorded as the root prim (for which the UUID must equal the persisted group UUID).  In
                            // this case, force the UUID to be the same as the group UUID so that at least these can be
                            // deleted (we need to change the UUID so that any other prims in the linkset can also be
                            // deleted).
                            if (sceneObjectPart.UUID != groupID && groupID != UUID.Zero)
                            {
                                _Log.WarnFormat(
                                    "[REGION DB]: Found root prim {0} {1} at {2} where group was actually {3}.  Forcing UUID to group UUID",
                                    sceneObjectPart.Name, sceneObjectPart.UUID, sceneObjectPart.GroupPosition, groupID);

                                sceneObjectPart.UUID = groupID;
                            }

                            grp = new SceneObjectGroup(sceneObjectPart);
                        }
                        else
                        {
                            // Black magic to preserve link numbers
                            // Why is this needed, fix this in AddPart method.
                            int link = sceneObjectPart.LinkNum;

                            grp.AddPart(sceneObjectPart);

                            if (link != 0)
                                sceneObjectPart.LinkNum = link;
                        }
                    }
                }
            }

            if (grp != null)
                objects[grp.UUID] = grp;

            // Instead of attempting to LoadItems on every prim,
            // most of which probably have no items... get a
            // list from DB of all prims which have items and
            // LoadItems only on those
            List<SceneObjectPart> primsWithInventory = new List<SceneObjectPart>();
            string qry = "select distinct \"primID\" from primitems";
            using (NpgsqlConnection conn = new NpgsqlConnection(m_connectionString))
            using (NpgsqlCommand command = new NpgsqlCommand(qry, conn))
            {
                conn.Open();
                using (NpgsqlDataReader itemReader = command.ExecuteReader())
                {
                    while (itemReader.Read())
                    {
                        if (!(itemReader["primID"] is DBNull))
                        {
                            UUID primID = new UUID(itemReader["primID"].ToString());
                            if (prims.ContainsKey(primID))
                            {
                                primsWithInventory.Add(prims[primID]);
                            }
                        }
                    }
                }
            }

            LoadItems(primsWithInventory);

            _Log.DebugFormat("[REGION DB]: Loaded {0} objects using {1} prims", objects.Count, prims.Count);

            return new List<SceneObjectGroup>(objects.Values);
        }

        /// <summary>
        /// Load in the prim's persisted inventory.
        /// </summary>
        /// <param name="allPrims">all prims with inventory on a region</param>
        private void LoadItems(List<SceneObjectPart> allPrimsWithInventory)
        {
            string sql = @"SELECT * FROM primitems WHERE ""primID"" = :PrimID";
            using (NpgsqlConnection conn = new NpgsqlConnection(m_connectionString))
            using (NpgsqlCommand command = new NpgsqlCommand(sql, conn))
            {
                conn.Open();
                foreach (SceneObjectPart objectPart in allPrimsWithInventory)
                {
                    command.Parameters.Clear();
                    command.Parameters.Add(_Database.CreateParameter("PrimID", objectPart.UUID));

                    List<TaskInventoryItem> inventory = new List<TaskInventoryItem>();

                    using (NpgsqlDataReader reader = command.ExecuteReader())
                    {
                        while (reader.Read())
                        {
                            TaskInventoryItem item = BuildItem(reader);

                            item.ParentID = objectPart.UUID; // Values in database are
                            // often wrong
                            inventory.Add(item);
                        }
                    }

                    objectPart.Inventory.RestoreInventoryItems(inventory);
                }
            }
        }

        /// <summary>
        /// Stores all object's details apart from inventory
        /// </summary>
        /// <param name="obj"></param>
        /// <param name="regionUUID"></param>
        public void StoreObject(SceneObjectGroup obj, UUID regionUUID)
        {
            uint flags = obj.RootPart.GetEffectiveObjectFlags();
            // Eligibility check
            //
            if ((flags & (uint)PrimFlags.Temporary) != 0)
                return;
            if ((flags & (uint)PrimFlags.TemporaryOnRez) != 0)
                return;

            //_Log.DebugFormat("[PGSQL]: Adding/Changing SceneObjectGroup: {0} to region: {1}, object has {2} prims.", obj.UUID, regionUUID, obj.Parts.Length);

            using (NpgsqlConnection conn = new NpgsqlConnection(m_connectionString))
            {
                conn.Open();
                NpgsqlTransaction transaction = conn.BeginTransaction();

                try
                {
                    foreach (SceneObjectPart sceneObjectPart in obj.Parts)
                    {
                        //Update prim
                        using (NpgsqlCommand sqlCommand = conn.CreateCommand())
                        {
                            sqlCommand.Transaction = transaction;
                            try
                            {
                                StoreSceneObjectPrim(sceneObjectPart, sqlCommand, obj.UUID, regionUUID);
                            }
                            catch (NpgsqlException sqlEx)
                            {
                                _Log.ErrorFormat("[REGION DB]: Store SceneObjectPrim SQL error: {0} at line {1}", sqlEx.Message, sqlEx.Line);
                                throw;
                            }
                        }

                        //Update primshapes
                        using (NpgsqlCommand sqlCommand = conn.CreateCommand())
                        {
                            sqlCommand.Transaction = transaction;
                            try
                            {
                                StoreSceneObjectPrimShapes(sceneObjectPart, sqlCommand, obj.UUID, regionUUID);
                            }
                            catch (NpgsqlException sqlEx)
                            {
                                _Log.ErrorFormat("[REGION DB]: Store SceneObjectPrimShapes SQL error: {0} at line {1}", sqlEx.Message, sqlEx.Line);
                                throw;
                            }
                        }
                    }

                    transaction.Commit();
                }
                catch (Exception ex)
                {
                    _Log.ErrorFormat("[REGION DB]: Store SceneObjectGroup error: {0}, Rolling back...", ex.Message);
                    try
                    {
                        transaction.Rollback();
                    }
                    catch (Exception ex2)
                    {
                        //Show error
                        _Log.InfoFormat("[REGION DB]: Rollback of SceneObjectGroup store transaction failed with error: {0}", ex2.Message);

                    }
                }
            }
        }

        /// <summary>
        /// Stores the prim of the sceneobjectpart.
        /// </summary>
        /// <param name="sceneObjectPart">The sceneobjectpart or prim.</param>
        /// <param name="sqlCommand">The SQL command with the transaction.</param>
        /// <param name="sceneGroupID">The scenegroup UUID.</param>
        /// <param name="regionUUID">The region UUID.</param>
        private void StoreSceneObjectPrim(SceneObjectPart sceneObjectPart, NpgsqlCommand sqlCommand, UUID sceneGroupID, UUID regionUUID)
        {
            //Big query to update or insert a new prim.

            string queryPrims = @"
        UPDATE prims SET
            ""CreationDate"" = :CreationDate, ""Name"" = :Name, ""Text"" = :Text, ""Description"" = :Description, ""SitName"" = :SitName,
            ""TouchName"" = :TouchName, ""ObjectFlags"" = :ObjectFlags, ""OwnerMask"" = :OwnerMask, ""NextOwnerMask"" = :NextOwnerMask, ""GroupMask"" = :GroupMask,
            ""EveryoneMask"" = :EveryoneMask, ""BaseMask"" = :BaseMask, ""PositionX"" = :PositionX, ""PositionY"" = :PositionY, ""PositionZ"" = :PositionZ,
            ""GroupPositionX"" = :GroupPositionX, ""GroupPositionY"" = :GroupPositionY, ""GroupPositionZ"" = :GroupPositionZ, ""VelocityX"" = :VelocityX,
            ""VelocityY"" = :VelocityY, ""VelocityZ"" = :VelocityZ, ""AngularVelocityX"" = :AngularVelocityX, ""AngularVelocityY"" = :AngularVelocityY,
            ""AngularVelocityZ"" = :AngularVelocityZ, ""AccelerationX"" = :AccelerationX, ""AccelerationY"" = :AccelerationY,
            ""AccelerationZ"" = :AccelerationZ, ""RotationX"" = :RotationX, ""RotationY"" = :RotationY, ""RotationZ"" = :RotationZ, ""RotationW"" = :RotationW,
            ""SitTargetOffsetX"" = :SitTargetOffsetX, ""SitTargetOffsetY"" = :SitTargetOffsetY, ""SitTargetOffsetZ"" = :SitTargetOffsetZ,
            ""SitTargetOrientW"" = :SitTargetOrientW, ""SitTargetOrientX"" = :SitTargetOrientX, ""SitTargetOrientY"" = :SitTargetOrientY,
            ""SitTargetOrientZ"" = :SitTargetOrientZ, ""RegionUUID"" = :RegionUUID, ""CreatorID"" = :CreatorID, ""OwnerID"" = :OwnerID, ""GroupID"" = :GroupID,
            ""LastOwnerID"" = :LastOwnerID, ""SceneGroupID"" = :SceneGroupID, ""PayPrice"" = :PayPrice, ""PayButton1"" = :PayButton1, ""PayButton2"" = :PayButton2,
            ""PayButton3"" = :PayButton3, ""PayButton4"" = :PayButton4, ""LoopedSound"" = :LoopedSound, ""LoopedSoundGain"" = :LoopedSoundGain,
            ""TextureAnimation"" = :TextureAnimation, ""CameraEyeOffsetX"" = :CameraEyeOffsetX,
            ""CameraEyeOffsetY"" = :CameraEyeOffsetY, ""CameraEyeOffsetZ"" = :CameraEyeOffsetZ, ""CameraAtOffsetX"" = :CameraAtOffsetX,
            ""CameraAtOffsetY"" = :CameraAtOffsetY, ""CameraAtOffsetZ"" = :CameraAtOffsetZ, ""ForceMouselook"" = :ForceMouselook,
            ""ScriptAccessPin"" = :ScriptAccessPin, ""AllowedDrop"" = :AllowedDrop, ""DieAtEdge"" = :DieAtEdge, ""SalePrice"" = :SalePrice,
            ""PhysicsShapeType"" = :PhysicsShapeType, ""Density"" = :Density, ""GravityModifier"" = :GravityModifier, ""Friction"" = :Friction, ""Restitution"" = :Restitution, 
            ""PassCollisions"" = :PassCollisions, ""RotationAxisLocks"" = :RotationAxisLocks, ""RezzerID"" = :RezzerID,
            ""ClickAction"" = :ClickAction, ""Material"" = :Material, ""CollisionSound"" = :CollisionSound, ""CollisionSoundVolume"" = :CollisionSoundVolume, ""PassTouches"" = :PassTouches,
            ""LinkNumber"" = :LinkNumber, ""MediaURL"" = :MediaURL, ""DynAttrs"" = :DynAttrs, ""Vehicle"" = :Vehicle,
            ""PhysInertia"" = :PhysInertia, ""standtargetx"" =:standtargetx, ""standtargety"" =:standtargety, ""standtargetz"" =:standtargetz,
            ""sitactrange"" =:sitactrange, ""pseudocrc"" = :pseudocrc

        WHERE ""UUID"" = :UUID ;

        INSERT INTO
            prims (
            ""UUID"", ""CreationDate"", ""Name"", ""Text"", ""Description"", ""SitName"", ""TouchName"", ""ObjectFlags"", ""OwnerMask"", ""NextOwnerMask"", ""GroupMask"",
            ""EveryoneMask"", ""BaseMask"", ""PositionX"", ""PositionY"", ""PositionZ"", ""GroupPositionX"", ""GroupPositionY"", ""GroupPositionZ"", ""VelocityX"",
            ""VelocityY"", ""VelocityZ"", ""AngularVelocityX"", ""AngularVelocityY"", ""AngularVelocityZ"", ""AccelerationX"", ""AccelerationY"", ""AccelerationZ"",
            ""RotationX"", ""RotationY"", ""RotationZ"", ""RotationW"", ""SitTargetOffsetX"", ""SitTargetOffsetY"", ""SitTargetOffsetZ"", ""SitTargetOrientW"",
            ""SitTargetOrientX"", ""SitTargetOrientY"", ""SitTargetOrientZ"", ""RegionUUID"", ""CreatorID"", ""OwnerID"", ""GroupID"", ""LastOwnerID"", ""SceneGroupID"",
            ""PayPrice"", ""PayButton1"", ""PayButton2"", ""PayButton3"", ""PayButton4"", ""LoopedSound"", ""LoopedSoundGain"", ""TextureAnimation"",
            ""CameraEyeOffsetX"", ""CameraEyeOffsetY"", ""CameraEyeOffsetZ"", ""CameraAtOffsetX"", ""CameraAtOffsetY"", ""CameraAtOffsetZ"",
            ""ForceMouselook"", ""ScriptAccessPin"", ""AllowedDrop"", ""DieAtEdge"", ""SalePrice"", ""SaleType"", ""ColorR"", ""ColorG"", ""ColorB"", ""ColorA"",
            ""ParticleSystem"", ""ClickAction"", ""Material"", ""CollisionSound"", ""CollisionSoundVolume"", ""PassTouches"", ""LinkNumber"", ""MediaURL"", ""DynAttrs"",
            ""PhysicsShapeType"", ""Density"", ""GravityModifier"", ""Friction"", ""Restitution"", ""PassCollisions"", ""RotationAxisLocks"", ""RezzerID"" , ""Vehicle"", ""PhysInertia"",
            ""standtargetx"", ""standtargety"", ""standtargetz"", ""sitactrange"", ""pseudocrc""
            ) Select
            :UUID, :CreationDate, :Name, :Text, :Description, :SitName, :TouchName, :ObjectFlags, :OwnerMask, :NextOwnerMask, :GroupMask,
            :EveryoneMask, :BaseMask, :PositionX, :PositionY, :PositionZ, :GroupPositionX, :GroupPositionY, :GroupPositionZ, :VelocityX,
            :VelocityY, :VelocityZ, :AngularVelocityX, :AngularVelocityY, :AngularVelocityZ, :AccelerationX, :AccelerationY, :AccelerationZ,
            :RotationX, :RotationY, :RotationZ, :RotationW, :SitTargetOffsetX, :SitTargetOffsetY, :SitTargetOffsetZ, :SitTargetOrientW,
            :SitTargetOrientX, :SitTargetOrientY, :SitTargetOrientZ, :RegionUUID, :CreatorID, :OwnerID, :GroupID, :LastOwnerID, :SceneGroupID,
            :PayPrice, :PayButton1, :PayButton2, :PayButton3, :PayButton4, :LoopedSound, :LoopedSoundGain, :TextureAnimation,
            :CameraEyeOffsetX, :CameraEyeOffsetY, :CameraEyeOffsetZ, :CameraAtOffsetX, :CameraAtOffsetY, :CameraAtOffsetZ,
            :ForceMouselook, :ScriptAccessPin, :AllowedDrop, :DieAtEdge, :SalePrice, :SaleType, :ColorR, :ColorG, :ColorB, :ColorA,
            :ParticleSystem, :ClickAction, :Material, :CollisionSound, :CollisionSoundVolume, :PassTouches, :LinkNumber, :MediaURL, :DynAttrs,
            :PhysicsShapeType, :Density, :GravityModifier, :Friction, :Restitution, :PassCollisions, :RotationAxisLocks, :RezzerID, :Vehicle, :PhysInertia,
            :standtargetx, :standtargety, :standtargetz,:sitactrange, :pseudocrc 
            where not EXISTS (SELECT ""UUID"" FROM prims WHERE ""UUID"" = :UUID);
        ";

            //Set commandtext.
            sqlCommand.CommandText = queryPrims;
            //Add parameters
            sqlCommand.Parameters.AddRange(CreatePrimParameters(sceneObjectPart, sceneGroupID, regionUUID));

            //Execute the query. If it fails then error is trapped in calling function
            sqlCommand.ExecuteNonQuery();
        }

        /// <summary>
        /// Stores the scene object prim shapes.
        /// </summary>
        /// <param name="sceneObjectPart">The sceneobjectpart containing prim shape.</param>
        /// <param name="sqlCommand">The SQL command with the transaction.</param>
        /// <param name="sceneGroupID">The scenegroup UUID.</param>
        /// <param name="regionUUID">The region UUID.</param>
        private void StoreSceneObjectPrimShapes(SceneObjectPart sceneObjectPart, NpgsqlCommand sqlCommand, UUID sceneGroupID, UUID regionUUID)
        {
            //Big query to or insert or update primshapes

            string queryPrimShapes = @"
        UPDATE primshapes SET
            ""Shape"" = :Shape, ""ScaleX"" = :ScaleX, ""ScaleY"" = :ScaleY, ""ScaleZ"" = :ScaleZ, ""PCode"" = :PCode, ""PathBegin"" = :PathBegin,
            ""PathEnd"" = :PathEnd, ""PathScaleX"" = :PathScaleX, ""PathScaleY"" = :PathScaleY, ""PathShearX"" = :PathShearX, ""PathShearY"" = :PathShearY,
            ""PathSkew"" = :PathSkew, ""PathCurve"" = :PathCurve, ""PathRadiusOffset"" = :PathRadiusOffset, ""PathRevolutions"" = :PathRevolutions,
            ""PathTaperX"" = :PathTaperX, ""PathTaperY"" = :PathTaperY, ""PathTwist"" = :PathTwist, ""PathTwistBegin"" = :PathTwistBegin,
            ""ProfileBegin"" = :ProfileBegin, ""ProfileEnd"" = :ProfileEnd, ""ProfileCurve"" = :ProfileCurve, ""ProfileHollow"" = :ProfileHollow,
            ""Texture"" = :Texture, ""ExtraParams"" = :ExtraParams, ""State"" = :State, ""Media"" = :Media
        WHERE ""UUID"" = :UUID ;

        INSERT INTO
            primshapes (
            ""UUID"", ""Shape"", ""ScaleX"", ""ScaleY"", ""ScaleZ"", ""PCode"", ""PathBegin"", ""PathEnd"", ""PathScaleX"", ""PathScaleY"", ""PathShearX"", ""PathShearY"",
            ""PathSkew"", ""PathCurve"", ""PathRadiusOffset"", ""PathRevolutions"", ""PathTaperX"", ""PathTaperY"", ""PathTwist"", ""PathTwistBegin"", ""ProfileBegin"",
            ""ProfileEnd"", ""ProfileCurve"", ""ProfileHollow"", ""Texture"", ""ExtraParams"", ""State"", ""Media""
            )
            Select
            :UUID, :Shape, :ScaleX, :ScaleY, :ScaleZ, :PCode, :PathBegin, :PathEnd, :PathScaleX, :PathScaleY, :PathShearX, :PathShearY,
            :PathSkew, :PathCurve, :PathRadiusOffset, :PathRevolutions, :PathTaperX, :PathTaperY, :PathTwist, :PathTwistBegin, :ProfileBegin,
            :ProfileEnd, :ProfileCurve, :ProfileHollow, :Texture, :ExtraParams, :State, :Media
        where not EXISTS (SELECT ""UUID"" FROM primshapes WHERE ""UUID"" = :UUID);
        ";

            //Set commandtext.
            sqlCommand.CommandText = queryPrimShapes;

            //Add parameters
            sqlCommand.Parameters.AddRange(CreatePrimShapeParameters(sceneObjectPart, sceneGroupID, regionUUID));

            //Execute the query. If it fails then error is trapped in calling function
            sqlCommand.ExecuteNonQuery();

        }

        /// <summary>
        /// Removes a object from the database.
        /// Meaning removing it from tables Prims, PrimShapes and PrimItems
        /// </summary>
        /// <param name="objectID">id of scenegroup</param>
        /// <param name="regionUUID">regionUUID (is this used anyway</param>
        public void RemoveObject(UUID objectID, UUID regionUUID)
        {
            //_Log.InfoFormat("[PGSQL]: Removing obj: {0} from region: {1}", objectID, regionUUID);

            //Remove from prims and primsitem table
            string sqlPrims = @"DELETE FROM PRIMS WHERE ""SceneGroupID"" = :objectID";
            string sqlPrimItems = @"DELETE FROM PRIMITEMS WHERE ""primID"" in (SELECT ""UUID"" FROM PRIMS WHERE ""SceneGroupID"" = :objectID)";
            string sqlPrimShapes = @"DELETE FROM PRIMSHAPES WHERE ""UUID"" in (SELECT ""UUID"" FROM PRIMS WHERE ""SceneGroupID"" = :objectID)";

            lock (_Database)
            {
                //Using the non transaction mode.
                using (NpgsqlConnection conn = new NpgsqlConnection(m_connectionString))
                using (NpgsqlCommand cmd = new NpgsqlCommand())
                {
                    cmd.Connection = conn;
                    cmd.CommandText = sqlPrimShapes;
                    conn.Open();
                    cmd.Parameters.Add(_Database.CreateParameter("objectID", objectID));
                    cmd.ExecuteNonQuery();

                    cmd.CommandText = sqlPrimItems;
                    cmd.ExecuteNonQuery();

                    cmd.CommandText = sqlPrims;
                    cmd.ExecuteNonQuery();
                }
            }
        }

        /// <summary>
        /// Store the inventory of a prim. Warning deletes everything first and then adds all again.
        /// </summary>
        /// <param name="primID"></param>
        /// <param name="items"></param>
        public void StorePrimInventory(UUID primID, ICollection<TaskInventoryItem> items)
        {
            //_Log.InfoFormat("[REGION DB: Persisting Prim Inventory with prim ID {0}", primID);

            //Statement from PGSQL section!
            // For now, we're just going to crudely remove all the previous inventory items
            // no matter whether they have changed or not, and replace them with the current set.

            //Delete everything from PrimID
            //TODO add index on PrimID in DB, if not already exist

            string sql = @"delete from primitems where ""primID"" = :primID";
            using (NpgsqlConnection conn = new NpgsqlConnection(m_connectionString))
            using (NpgsqlCommand cmd = new NpgsqlCommand(sql, conn))
            {
                cmd.Parameters.Add(_Database.CreateParameter("primID", primID));
                conn.Open();
                cmd.ExecuteNonQuery();
            }

            sql =
                @"INSERT INTO primitems (
            ""itemID"",""primID"",""assetID"",""parentFolderID"",""invType"",""assetType"",""name"",""description"",""creationDate"",""creatorID"",""ownerID"",""lastOwnerID"",""groupID"",
            ""nextPermissions"",""currentPermissions"",""basePermissions"",""everyonePermissions"",""groupPermissions"",""flags"")
            VALUES (:itemID,:primID,:assetID,:parentFolderID,:invType,:assetType,:name,:description,:creationDate,:creatorID,:ownerID,
            :lastOwnerID,:groupID,:nextPermissions,:currentPermissions,:basePermissions,:everyonePermissions,:groupPermissions,:flags)";

            using (NpgsqlConnection conn = new NpgsqlConnection(m_connectionString))
            using (NpgsqlCommand cmd = new NpgsqlCommand(sql, conn))
            {
                conn.Open();
                foreach (TaskInventoryItem taskItem in items)
                {
                    cmd.Parameters.AddRange(CreatePrimInventoryParameters(taskItem));
                    cmd.ExecuteNonQuery();
                    cmd.Parameters.Clear();
                }
            }
        }

        #endregion

        /// <summary>
        /// Loads the terrain map.
        /// </summary>
        /// <param name="regionID">regionID.</param>
        /// <returns></returns>
        public double[,] LoadTerrain(UUID regionID)
        {
            double[,] ret = null;
            TerrainData terrData = LoadTerrain(regionID, (int)Constants.RegionSize, (int)Constants.RegionSize, (int)Constants.RegionHeight);
            if (terrData != null)
                ret = terrData.GetDoubles();
            return ret;
        }

        // Returns 'null' if region not found
        public TerrainData LoadTerrain(UUID regionID, int pSizeX, int pSizeY, int pSizeZ)
        {
            TerrainData terrData = null;

            string sql = @"select ""RegionUUID"", ""Revision"", ""Heightfield"" from terrain
                            where ""RegionUUID"" = :RegionUUID order by ""Revision"" desc limit 1; ";

            using (NpgsqlConnection conn = new NpgsqlConnection(m_connectionString))
            {
                using (NpgsqlCommand cmd = new NpgsqlCommand(sql, conn))
                {
                    // PGSqlParameter param = new PGSqlParameter();
                    cmd.Parameters.Add(_Database.CreateParameter("RegionUUID", regionID));
                    conn.Open();
                    using (NpgsqlDataReader reader = cmd.ExecuteReader())
                    {
                        int rev;
                        if (reader.Read())
                        {
                            rev = Convert.ToInt32(reader["Revision"]);
                            if ((reader["Heightfield"] != DBNull.Value))
                            {
                                byte[] blob = (byte[])reader["Heightfield"];
                                terrData = TerrainData.CreateFromDatabaseBlobFactory(pSizeX, pSizeY, pSizeZ, rev, blob);
                            }
                        }
                        else
                        {
                            _Log.Info("[REGION DB]: No terrain found for region");
                            return null;
                        }
                        _Log.Info("[REGION DB]: Loaded terrain revision r" + rev);
                    }
                }
            }

            return terrData;
        }

        public TerrainData LoadBakedTerrain(UUID regionID, int pSizeX, int pSizeY, int pSizeZ)
        {
            TerrainData terrData = null;

            string sql = @"select ""RegionUUID"", ""Revision"", ""Heightfield"" from bakedterrain
                            where ""RegionUUID"" = :RegionUUID; ";

            using (NpgsqlConnection conn = new NpgsqlConnection(m_connectionString))
            {
                using (NpgsqlCommand cmd = new NpgsqlCommand(sql, conn))
                {
                    // PGSqlParameter param = new PGSqlParameter();
                    cmd.Parameters.Add(_Database.CreateParameter("RegionUUID", regionID));
                    conn.Open();
                    using (NpgsqlDataReader reader = cmd.ExecuteReader())
                    {
                        int rev;
                        if (reader.Read())
                        {
                            rev = Convert.ToInt32(reader["Revision"]);
                            if ((reader["Heightfield"] != DBNull.Value))
                            {
                                byte[] blob = (byte[])reader["Heightfield"];
                                terrData = TerrainData.CreateFromDatabaseBlobFactory(pSizeX, pSizeY, pSizeZ, rev, blob);
                            }
                        }
                    }
                }
            }

            return terrData;
        }

        // Legacy entry point for when terrain was always a 256x256 heightmap
        public void StoreTerrain(double[,] terrain, UUID regionID)
        {
            StoreTerrain(new TerrainData(terrain), regionID);
        }

        /// <summary>
        /// Stores the terrain map to DB.
        /// </summary>
        /// <param name="terrain">terrain map data.</param>
        /// <param name="regionID">regionID.</param>
        public void StoreTerrain(TerrainData terrData, UUID regionID)
        {
            //Delete old terrain map
            string sql = @"delete from terrain where ""RegionUUID""=:RegionUUID";
            using (NpgsqlConnection conn = new NpgsqlConnection(m_connectionString))
            {
                using (NpgsqlCommand cmd = new NpgsqlCommand(sql, conn))
                {
                    cmd.Parameters.Add(_Database.CreateParameter("RegionUUID", regionID));
                    conn.Open();
                    cmd.ExecuteNonQuery();

                    _Log.InfoFormat("{0} Deleted terrain revision id = {1}", LogHeader, regionID);
                }
            }

            int terrainDBRevision;
            Array terrainDBblob;
            terrData.GetDatabaseBlob(out terrainDBRevision, out terrainDBblob);

            sql = @"insert into terrain(""RegionUUID"", ""Revision"", ""Heightfield"") values(:RegionUUID, :Revision, :Heightfield)";

            using (NpgsqlConnection conn = new NpgsqlConnection(m_connectionString))
            {
                using (NpgsqlCommand cmd = new NpgsqlCommand(sql, conn))
                {
                    cmd.Parameters.Add(_Database.CreateParameter("RegionUUID", regionID));
                    cmd.Parameters.Add(_Database.CreateParameter("Revision", terrainDBRevision));
                    cmd.Parameters.Add(_Database.CreateParameter("Heightfield", terrainDBblob));
                    conn.Open();
                    cmd.ExecuteNonQuery();

                    _Log.InfoFormat("{0} Stored terrain id = {1}, terrainSize = <{2},{3}>",
                                    LogHeader, regionID, terrData.SizeX, terrData.SizeY);
                }
            }

        }

        /// <summary>
        /// Stores the baked terrain map to DB.
        /// </summary>
        /// <param name="terrain">terrain map data.</param>
        /// <param name="regionID">regionID.</param>
        public void StoreBakedTerrain(TerrainData terrData, UUID regionID)
        {
            //Delete old terrain map
            string sql = @"delete from bakedterrain where ""RegionUUID""=:RegionUUID";
            using (NpgsqlConnection conn = new NpgsqlConnection(m_connectionString))
            {
                using (NpgsqlCommand cmd = new NpgsqlCommand(sql, conn))
                {
                    cmd.Parameters.Add(_Database.CreateParameter("RegionUUID", regionID));
                    conn.Open();
                    cmd.ExecuteNonQuery();

                    _Log.InfoFormat("{0} Deleted bakedterrain id = {1}", LogHeader, regionID);
                }
            }

            int terrainDBRevision;
            Array terrainDBblob;
            terrData.GetDatabaseBlob(out terrainDBRevision, out terrainDBblob);

            sql = @"insert into bakedterrain(""RegionUUID"", ""Revision"", ""Heightfield"") values(:RegionUUID, :Revision, :Heightfield)";

            using (NpgsqlConnection conn = new NpgsqlConnection(m_connectionString))
            {
                using (NpgsqlCommand cmd = new NpgsqlCommand(sql, conn))
                {
                    cmd.Parameters.Add(_Database.CreateParameter("RegionUUID", regionID));
                    cmd.Parameters.Add(_Database.CreateParameter("Revision", terrainDBRevision));
                    cmd.Parameters.Add(_Database.CreateParameter("Heightfield", terrainDBblob));
                    conn.Open();
                    cmd.ExecuteNonQuery();

                    _Log.InfoFormat("{0} Stored bakedterrain id = {1}, terrainSize = <{2},{3}>",
                                    LogHeader, regionID, terrData.SizeX, terrData.SizeY);
                }
            }
        }

        /// <summary>
        /// Loads all the land objects of a region.
        /// </summary>
        /// <param name="regionUUID">The region UUID.</param>
        /// <returns></returns>
        public List<LandData> LoadLandObjects(UUID regionUUID)
        {
            List<LandData> LandDataForRegion = new List<LandData>();

            string sql = @"select * from land where ""RegionUUID"" = :RegionUUID";

            //Retrieve all land data from region
            using (NpgsqlConnection conn = new NpgsqlConnection(m_connectionString))
            using (NpgsqlCommand cmd = new NpgsqlCommand(sql, conn))
            {
                cmd.Parameters.Add(_Database.CreateParameter("RegionUUID", regionUUID));
                conn.Open();
                using (NpgsqlDataReader readerLandData = cmd.ExecuteReader())
                {
                    while (readerLandData.Read())
                    {
                        LandDataForRegion.Add(BuildLandData(readerLandData));
                    }
                }
            }

            //Retrieve all accesslist data for all landdata
            foreach (LandData LandData in LandDataForRegion)
            {
                sql = @"select * from landaccesslist where ""LandUUID"" = :LandUUID";
                using (NpgsqlConnection conn = new NpgsqlConnection(m_connectionString))
                using (NpgsqlCommand cmd = new NpgsqlCommand(sql, conn))
                {
                    cmd.Parameters.Add(_Database.CreateParameter("LandUUID", LandData.GlobalID));
                    conn.Open();
                    using (NpgsqlDataReader readerAccessList = cmd.ExecuteReader())
                    {
                        while (readerAccessList.Read())
                        {
                            LandData.ParcelAccessList.Add(BuildLandAccessData(readerAccessList));
                        }
                    }
                }
            }

            //Return data
            return LandDataForRegion;
        }

        /// <summary>
        /// Stores land object with landaccess list.
        /// </summary>
        /// <param name="parcel">parcel data.</param>
        public void StoreLandObject(ILandObject parcel)
        {
            //As this is only one record in land table I just delete all and then add a new record.
            //As the delete landaccess is already in the pgsql code

            //Delete old values
            RemoveLandObject(parcel.LandData.GlobalID);

            //Insert new values
            string sql = @"INSERT INTO land
                (""UUID"",""RegionUUID"",""LocalLandID"",""Bitmap"",""Name"",""Description"",""OwnerUUID"",""IsGroupOwned"",""Area"",""AuctionID"",""Category"",""ClaimDate"",""ClaimPrice"",
                 ""GroupUUID"",""SalePrice"",""LandStatus"",""LandFlags"",""LandingType"",""MediaAutoScale"",""MediaTextureUUID"",""MediaURL"",""MusicURL"",""PassHours"",""PassPrice"",
                 ""SnapshotUUID"",""UserLocationX"",""UserLocationY"",""UserLocationZ"",""UserLookAtX"",""UserLookAtY"",""UserLookAtZ"",""AuthbuyerID"",""OtherCleanTime"",""Dwell"",
                 ""MediaType"",""MediaDescription"",""MediaSize"",""MediaLoop"",""ObscureMusic"",""ObscureMedia"",""SeeAVs"",""AnyAVSounds"",""GroupAVSounds"",
                 ""environment"")
                VALUES
                (:UUID,:RegionUUID,:LocalLandID,:Bitmap,:Name,:Description,:OwnerUUID,:IsGroupOwned,:Area,:AuctionID,:Category,:ClaimDate,:ClaimPrice,
                 :GroupUUID,:SalePrice,:LandStatus,:LandFlags,:LandingType,:MediaAutoScale,:MediaTextureUUID,:MediaURL,:MusicURL,:PassHours,:PassPrice,
                 :SnapshotUUID,:UserLocationX,:UserLocationY,:UserLocationZ,:UserLookAtX,:UserLookAtY,:UserLookAtZ,:AuthbuyerID,:OtherCleanTime,:Dwell,
                 :MediaType,:MediaDescription,:MediaWidth::text || ',' || :MediaHeight::text,:MediaLoop,:ObscureMusic,:ObscureMedia,:SeeAVs::int::smallint,
                 :AnyAVSounds::int::smallint,:GroupAVSounds::int::smallint,:environment)";

            using (NpgsqlConnection conn = new NpgsqlConnection(m_connectionString))
            using (NpgsqlCommand cmd = new NpgsqlCommand(sql, conn))
            {
                cmd.Parameters.AddRange(CreateLandParameters(parcel.LandData, parcel.RegionUUID));
                conn.Open();
                cmd.ExecuteNonQuery();
            }

            sql = @"INSERT INTO landaccesslist (""LandUUID"",""AccessUUID"",""LandFlags"",""Expires"") VALUES (:LandUUID,:AccessUUID,:Flags,:Expires)";

            using (NpgsqlConnection conn = new NpgsqlConnection(m_connectionString))
            using (NpgsqlCommand cmd = new NpgsqlCommand(sql, conn))
            {
                conn.Open();
                foreach (LandAccessEntry parcelAccessEntry in parcel.LandData.ParcelAccessList)
                {
                    cmd.Parameters.AddRange(CreateLandAccessParameters(parcelAccessEntry, parcel.RegionUUID));

                    cmd.ExecuteNonQuery();
                    cmd.Parameters.Clear();
                }
            }
        }

        /// <summary>
        /// Removes a land object from DB.
        /// </summary>
        /// <param name="globalID">UUID of landobject</param>
        public void RemoveLandObject(UUID globalID)
        {
            string sql = @"delete from land where ""UUID""=:UUID";
            using (NpgsqlConnection conn = new NpgsqlConnection(m_connectionString))
            using (NpgsqlCommand cmd = new NpgsqlCommand(sql, conn))
            {
                cmd.Parameters.Add(_Database.CreateParameter("UUID", globalID));
                conn.Open();
                cmd.ExecuteNonQuery();
            }
            sql = @"delete from landaccesslist where ""LandUUID""=:UUID";
            using (NpgsqlConnection conn = new NpgsqlConnection(m_connectionString))
            using (NpgsqlCommand cmd = new NpgsqlCommand(sql, conn))
            {
                cmd.Parameters.Add(_Database.CreateParameter("UUID", globalID));
                conn.Open();
                cmd.ExecuteNonQuery();
            }
        }

        #region Environment Settings
        public string LoadRegionEnvironmentSettings(UUID regionUUID)
        {
            string sql = "select * from regionenvironment where region_id = :region_id";
            using (NpgsqlConnection conn = new NpgsqlConnection(m_connectionString))
            using (NpgsqlCommand cmd = new NpgsqlCommand(sql, conn))
            {
                cmd.Parameters.Add(_Database.CreateParameter("region_id", regionUUID));
                conn.Open();
                using (NpgsqlDataReader result = cmd.ExecuteReader())
                {
                    if (!result.Read())
                    {
                        return String.Empty;
                    }
                    else
                    {
                        return Convert.ToString(result["llsd_settings"]);
                    }
                }
            }
        }

        public void StoreRegionEnvironmentSettings(UUID regionUUID, string settings)
        {
            {
                string sql = "DELETE FROM regionenvironment WHERE region_id = :region_id ;";

                using (NpgsqlConnection conn = new NpgsqlConnection(m_connectionString))
                using (NpgsqlCommand cmd = new NpgsqlCommand(sql, conn))
                {
                    cmd.Parameters.Add(_Database.CreateParameter("region_id", regionUUID));
                    conn.Open();
                    cmd.ExecuteNonQuery();
                }

                sql = "INSERT INTO regionenvironment (region_id, llsd_settings) VALUES (:region_id, :llsd_settings) ;";

                using (NpgsqlConnection conn = new NpgsqlConnection(m_connectionString))
                using (NpgsqlCommand cmd = new NpgsqlCommand(sql, conn))
                {
                    cmd.Parameters.Add(_Database.CreateParameter("region_id", regionUUID));
                    cmd.Parameters.Add(_Database.CreateParameter("llsd_settings", settings));

                    conn.Open();
                    cmd.ExecuteNonQuery();
                }
            }
        }

        public void RemoveRegionEnvironmentSettings(UUID regionUUID)
        {
            string sql = "delete from regionenvironment where region_id = :region_id ;";
            using (NpgsqlConnection conn = new NpgsqlConnection(m_connectionString))
            using (NpgsqlCommand cmd = new NpgsqlCommand(sql, conn))
            {
                cmd.Parameters.Add(_Database.CreateParameter("region_id", regionUUID));

                conn.Open();
                cmd.ExecuteNonQuery();
            }
        }
        #endregion

        /// <summary>
        /// Loads the settings of a region.
        /// </summary>
        /// <param name="regionUUID">The region UUID.</param>
        /// <returns></returns>
        public RegionSettings LoadRegionSettings(UUID regionUUID)
        {
            string sql = @"select * from regionsettings where ""regionUUID"" = :regionUUID";
            RegionSettings regionSettings;
            using (NpgsqlConnection conn = new NpgsqlConnection(m_connectionString))
            using (NpgsqlCommand cmd = new NpgsqlCommand(sql, conn))
            {
                cmd.Parameters.Add(_Database.CreateParameter("regionUUID", regionUUID));
                conn.Open();
                using (NpgsqlDataReader reader = cmd.ExecuteReader())
                {
                    if (reader.Read())
                    {
                        regionSettings = BuildRegionSettings(reader);
                        regionSettings.OnSave += StoreRegionSettings;

                        return regionSettings;
                    }
                }
            }

            //If we reach this point then there are new region settings for that region
            regionSettings = new RegionSettings();
            regionSettings.RegionUUID = regionUUID;
            regionSettings.OnSave += StoreRegionSettings;

            //Store new values
            StoreNewRegionSettings(regionSettings);

            LoadSpawnPoints(regionSettings);

            return regionSettings;
        }

        /// <summary>
        /// Store region settings, need to check if the check is really necesary. If we can make something for creating new region.
        /// </summary>
        /// <param name="regionSettings">region settings.</param>
        public void StoreRegionSettings(RegionSettings regionSettings)
        {
            //Little check if regionUUID already exist in DB
            string regionUUID;
            string sql = @"SELECT ""regionUUID"" FROM regionsettings WHERE ""regionUUID"" = :regionUUID";
            using (NpgsqlConnection conn = new NpgsqlConnection(m_connectionString))
            using (NpgsqlCommand cmd = new NpgsqlCommand(sql, conn))
            {
                cmd.Parameters.Add(_Database.CreateParameter("regionUUID", regionSettings.RegionUUID));
                conn.Open();
                regionUUID = cmd.ExecuteScalar().ToString();
            }

            if (string.IsNullOrEmpty(regionUUID))
            {
                StoreNewRegionSettings(regionSettings);
            }
            else
            {
                //This method only updates region settings!!! First call LoadRegionSettings to create new region settings in DB
                sql =
                   @"UPDATE regionsettings SET block_terraform = :block_terraform ,block_fly = :block_fly ,allow_damage = :allow_damage
,restrict_pushing = :restrict_pushing ,allow_land_resell = :allow_land_resell ,allow_land_join_divide = :allow_land_join_divide
,block_show_in_search = :block_show_in_search ,agent_limit = :agent_limit ,object_bonus = :object_bonus ,maturity = :maturity
,disable_scripts = :disable_scripts ,disable_collisions = :disable_collisions ,disable_physics = :disable_physics
,terrain_texture_1 = :terrain_texture_1 ,terrain_texture_2 = :terrain_texture_2 ,terrain_texture_3 = :terrain_texture_3
,terrain_texture_4 = :terrain_texture_4 ,elevation_1_nw = :elevation_1_nw ,elevation_2_nw = :elevation_2_nw
,elevation_1_ne = :elevation_1_ne ,elevation_2_ne = :elevation_2_ne ,elevation_1_se = :elevation_1_se ,elevation_2_se = :elevation_2_se
,elevation_1_sw = :elevation_1_sw ,elevation_2_sw = :elevation_2_sw ,water_height = :water_height ,terrain_raise_limit = :terrain_raise_limit
,terrain_lower_limit = :terrain_lower_limit ,use_estate_sun = :use_estate_sun ,fixed_sun = :fixed_sun ,sun_position = :sun_position
,covenant = :covenant ,covenant_datetime = :covenant_datetime, sunvectorx = :sunvectorx, sunvectory = :sunvectory, sunvectorz = :sunvectorz,
""Sandbox"" = :Sandbox, loaded_creation_datetime = :loaded_creation_datetime, loaded_creation_id = :loaded_creation_id, ""map_tile_ID"" = :TerrainImageID,
""TelehubObject"" = :telehubobject, ""parcel_tile_ID"" = :ParcelImageID, ""cacheID"" = :cacheID
 WHERE ""regionUUID"" = :regionUUID";

                using (NpgsqlConnection conn = new NpgsqlConnection(m_connectionString))
                using (NpgsqlCommand cmd = new NpgsqlCommand(sql, conn))
                {
                    cmd.Parameters.AddRange(CreateRegionSettingParameters(regionSettings));
                    conn.Open();
                    cmd.ExecuteNonQuery();
                }
            }
            SaveSpawnPoints(regionSettings);
        }

        public void Shutdown()
        {
            //Not used??
        }

        #region Private Methods

        /// <summary>
        /// Stores new regionsettings.
        /// </summary>
        /// <param name="regionSettings">The region settings.</param>
        private void StoreNewRegionSettings(RegionSettings regionSettings)
        {
            string sql = @"INSERT INTO regionsettings
                                (""regionUUID"",block_terraform,block_fly,allow_damage,restrict_pushing,allow_land_resell,allow_land_join_divide,
                                block_show_in_search,agent_limit,object_bonus,maturity,disable_scripts,disable_collisions,disable_physics,
                                terrain_texture_1,terrain_texture_2,terrain_texture_3,terrain_texture_4,elevation_1_nw,elevation_2_nw,elevation_1_ne,
                                elevation_2_ne,elevation_1_se,elevation_2_se,elevation_1_sw,elevation_2_sw,water_height,terrain_raise_limit,
                                terrain_lower_limit,use_estate_sun,fixed_sun,sun_position,covenant,covenant_datetime,sunvectorx, sunvectory, sunvectorz,
                                ""Sandbox"", loaded_creation_datetime, loaded_creation_id
                                )
                            VALUES
                                (:regionUUID,:block_terraform,:block_fly,:allow_damage,:restrict_pushing,:allow_land_resell,:allow_land_join_divide,
                                :block_show_in_search,:agent_limit,:object_bonus,:maturity,:disable_scripts,:disable_collisions,:disable_physics,
                                :terrain_texture_1,:terrain_texture_2,:terrain_texture_3,:terrain_texture_4,:elevation_1_nw,:elevation_2_nw,:elevation_1_ne,
                                :elevation_2_ne,:elevation_1_se,:elevation_2_se,:elevation_1_sw,:elevation_2_sw,:water_height,:terrain_raise_limit,
                                :terrain_lower_limit,:use_estate_sun,:fixed_sun,:sun_position,:covenant, :covenant_datetime, :sunvectorx,:sunvectory,
                                :sunvectorz, :Sandbox, :loaded_creation_datetime, :loaded_creation_id )";

            using (NpgsqlConnection conn = new NpgsqlConnection(m_connectionString))
            using (NpgsqlCommand cmd = new NpgsqlCommand(sql, conn))
            {
                cmd.Parameters.AddRange(CreateRegionSettingParameters(regionSettings));
                conn.Open();
                cmd.ExecuteNonQuery();
            }
        }

        #region Private DataRecord conversion methods

        /// <summary>
        /// Builds the region settings from a datarecod.
        /// </summary>
        /// <param name="row">datarecord with regionsettings.</param>
        /// <returns></returns>
        private static RegionSettings BuildRegionSettings(IDataRecord row)
        {
            //TODO change this is some more generic code so we doesnt have to change it every time a new field is added?
            RegionSettings newSettings = new RegionSettings();

            newSettings.RegionUUID = new UUID((Guid)row["regionUUID"]);
            newSettings.BlockTerraform = Convert.ToBoolean(row["block_terraform"]);
            newSettings.AllowDamage = Convert.ToBoolean(row["allow_damage"]);
            newSettings.BlockFly = Convert.ToBoolean(row["block_fly"]);
            newSettings.RestrictPushing = Convert.ToBoolean(row["restrict_pushing"]);
            newSettings.AllowLandResell = Convert.ToBoolean(row["allow_land_resell"]);
            newSettings.AllowLandJoinDivide = Convert.ToBoolean(row["allow_land_join_divide"]);
            newSettings.BlockShowInSearch = Convert.ToBoolean(row["block_show_in_search"]);
            newSettings.AgentLimit = Convert.ToInt32(row["agent_limit"]);
            newSettings.ObjectBonus = Convert.ToDouble(row["object_bonus"]);
            newSettings.Maturity = Convert.ToInt32(row["maturity"]);
            newSettings.DisableScripts = Convert.ToBoolean(row["disable_scripts"]);
            newSettings.DisableCollisions = Convert.ToBoolean(row["disable_collisions"]);
            newSettings.DisablePhysics = Convert.ToBoolean(row["disable_physics"]);
            newSettings.TerrainTexture1 = new UUID((Guid)row["terrain_texture_1"]);
            newSettings.TerrainTexture2 = new UUID((Guid)row["terrain_texture_2"]);
            newSettings.TerrainTexture3 = new UUID((Guid)row["terrain_texture_3"]);
            newSettings.TerrainTexture4 = new UUID((Guid)row["terrain_texture_4"]);
            newSettings.Elevation1NW = Convert.ToDouble(row["elevation_1_nw"]);
            newSettings.Elevation2NW = Convert.ToDouble(row["elevation_2_nw"]);
            newSettings.Elevation1NE = Convert.ToDouble(row["elevation_1_ne"]);
            newSettings.Elevation2NE = Convert.ToDouble(row["elevation_2_ne"]);
            newSettings.Elevation1SE = Convert.ToDouble(row["elevation_1_se"]);
            newSettings.Elevation2SE = Convert.ToDouble(row["elevation_2_se"]);
            newSettings.Elevation1SW = Convert.ToDouble(row["elevation_1_sw"]);
            newSettings.Elevation2SW = Convert.ToDouble(row["elevation_2_sw"]);
            newSettings.WaterHeight = Convert.ToDouble(row["water_height"]);
            newSettings.TerrainRaiseLimit = Convert.ToDouble(row["terrain_raise_limit"]);
            newSettings.TerrainLowerLimit = Convert.ToDouble(row["terrain_lower_limit"]);
            newSettings.UseEstateSun = Convert.ToBoolean(row["use_estate_sun"]);
            newSettings.Sandbox = Convert.ToBoolean(row["Sandbox"]);
            newSettings.FixedSun = Convert.ToBoolean(row["fixed_sun"]);
            newSettings.SunPosition = Convert.ToDouble(row["sun_position"]);
            newSettings.SunVector = new Vector3(
                                                 Convert.ToSingle(row["sunvectorx"]),
                                                 Convert.ToSingle(row["sunvectory"]),
                                                 Convert.ToSingle(row["sunvectorz"])
                                                 );
            newSettings.Covenant = new UUID((Guid)row["covenant"]);
            newSettings.CovenantChangedDateTime = Convert.ToInt32(row["covenant_datetime"]);
            newSettings.LoadedCreationDateTime = Convert.ToInt32(row["loaded_creation_datetime"]);

            if (row["loaded_creation_id"] is DBNull)
                newSettings.LoadedCreationID = "";
            else
                newSettings.LoadedCreationID = (String)row["loaded_creation_id"];

            newSettings.TerrainImageID = new UUID((string)row["map_tile_ID"]);
            newSettings.ParcelImageID = new UUID((Guid)row["parcel_tile_ID"]);
            newSettings.TelehubObject = new UUID((Guid)row["TelehubObject"]);

            if (!(row["cacheID"] is DBNull))
                newSettings.CacheID = new UUID((Guid)row["cacheID"]);
            return newSettings;
        }

        /// <summary>
        /// Builds the land data from a datarecord.
        /// </summary>
        /// <param name="row">datarecord with land data</param>
        /// <returns></returns>
        private static LandData BuildLandData(IDataRecord row)
        {
            LandData newData = new LandData();

            newData.GlobalID = new UUID((Guid)row["UUID"]);
            newData.LocalID = Convert.ToInt32(row["LocalLandID"]);

            // Bitmap is a byte[512]
            newData.Bitmap = (Byte[])row["Bitmap"];

            newData.Name = (string)row["Name"];
            newData.Description = (string)row["Description"];
            newData.OwnerID = new UUID((Guid)row["OwnerUUID"]);
            newData.IsGroupOwned = Convert.ToBoolean(row["IsGroupOwned"]);
            newData.Area = Convert.ToInt32(row["Area"]);
            newData.AuctionID = Convert.ToUInt32(row["AuctionID"]); //Unemplemented
            newData.Category = (ParcelCategory)Convert.ToInt32(row["Category"]);
            //Enum libsecondlife.Parcel.ParcelCategory
            newData.ClaimDate = Convert.ToInt32(row["ClaimDate"]);
            newData.ClaimPrice = Convert.ToInt32(row["ClaimPrice"]);
            newData.GroupID = new UUID((Guid)row["GroupUUID"]);
            newData.SalePrice = Convert.ToInt32(row["SalePrice"]);
            newData.Status = (ParcelStatus)Convert.ToInt32(row["LandStatus"]);
            //Enum. libsecondlife.Parcel.ParcelStatus
            newData.Flags = Convert.ToUInt32(row["LandFlags"]);
            newData.LandingType = Convert.ToByte(row["LandingType"]);
            newData.MediaAutoScale = Convert.ToByte(row["MediaAutoScale"]);
            newData.MediaID = new UUID((Guid)row["MediaTextureUUID"]);
            newData.MediaURL = (string)row["MediaURL"];
            newData.MusicURL = (string)row["MusicURL"];
            newData.PassHours = Convert.ToSingle(row["PassHours"]);
            newData.PassPrice = Convert.ToInt32(row["PassPrice"]);

            //            UUID authedbuyer;
            //            UUID snapshotID;
            //
            //            if (UUID.TryParse((string)row["AuthBuyerID"], out authedbuyer))
            //                newData.AuthBuyerID = authedbuyer;
            //
            //            if (UUID.TryParse((string)row["SnapshotUUID"], out snapshotID))
            //                newData.SnapshotID = snapshotID;
            newData.AuthBuyerID = new UUID((Guid)row["AuthBuyerID"]);
            newData.SnapshotID = new UUID((Guid)row["SnapshotUUID"]);

            newData.OtherCleanTime = Convert.ToInt32(row["OtherCleanTime"]);
            newData.Dwell = Convert.ToSingle(row["Dwell"]);

            try
            {
                newData.UserLocation =
                    new Vector3(Convert.ToSingle(row["UserLocationX"]), Convert.ToSingle(row["UserLocationY"]),
                                  Convert.ToSingle(row["UserLocationZ"]));
                newData.UserLookAt =
                    new Vector3(Convert.ToSingle(row["UserLookAtX"]), Convert.ToSingle(row["UserLookAtY"]),
                                  Convert.ToSingle(row["UserLookAtZ"]));
            }
            catch (InvalidCastException)
            {
                newData.UserLocation = Vector3.Zero;
                newData.UserLookAt = Vector3.Zero;
                _Log.ErrorFormat("[PARCEL]: unable to get parcel telehub settings for {1}", newData.Name);
            }

            newData.ParcelAccessList = new List<LandAccessEntry>();
            newData.MediaDescription = (string)row["MediaDescription"];
            newData.MediaType = (string)row["MediaType"];
            newData.MediaWidth = Convert.ToInt32((((string)row["MediaSize"]).Split(','))[0]);
            newData.MediaHeight = Convert.ToInt32((((string)row["MediaSize"]).Split(','))[1]);
            newData.MediaLoop = Convert.ToBoolean(row["MediaLoop"]);
            newData.ObscureMusic = Convert.ToBoolean(row["ObscureMusic"]);
            newData.ObscureMedia = Convert.ToBoolean(row["ObscureMedia"]);

            newData.SeeAVs = Convert.ToBoolean(row["SeeAVs"]);
            newData.AnyAVSounds = Convert.ToBoolean(row["AnyAVSounds"]);
            newData.GroupAVSounds = Convert.ToBoolean(row["GroupAVSounds"]);

            if (row["environment"] is DBNull)
            {
                newData.Environment = null;
                newData.EnvironmentVersion = -1;
            }
            else
            {
                string env = (string)row["environment"];
                if (string.IsNullOrEmpty(env))
                {
                    newData.Environment = null;
                    newData.EnvironmentVersion = -1;
                }
                else
                {
                    try
                    {
                        ViewerEnvironment VEnv = ViewerEnvironment.FromOSDString(env);
                        newData.Environment = VEnv;
                        newData.EnvironmentVersion = VEnv.version;
                    }
                    catch
                    {
                        newData.Environment = null;
                        newData.EnvironmentVersion = -1;
                    }
                }
            }

            return newData;
        }

        /// <summary>
        /// Builds the landaccess data from a data record.
        /// </summary>
        /// <param name="row">datarecord with landaccess data</param>
        /// <returns></returns>
        private static LandAccessEntry BuildLandAccessData(IDataRecord row)
        {
            LandAccessEntry entry = new LandAccessEntry();
            entry.AgentID = new UUID((Guid)row["AccessUUID"]);
            entry.Flags = (AccessList)Convert.ToInt32(row["Flags"]);
            entry.Expires = Convert.ToInt32(row["Expires"]);
            return entry;
        }

        /// <summary>
        /// Builds the prim from a datarecord.
        /// </summary>
        /// <param name="primRow">datarecord</param>
        /// <returns></returns>
        private static SceneObjectPart BuildPrim(IDataRecord primRow)
        {
            SceneObjectPart prim = new SceneObjectPart();

            prim.UUID = new UUID((Guid)primRow["UUID"]);
            // explicit conversion of integers is required, which sort
            // of sucks.  No idea if there is a shortcut here or not.
            prim.CreationDate = Convert.ToInt32(primRow["CreationDate"]);
            prim.Name = (string)primRow["Name"];
            // various text fields
            prim.Text = (string)primRow["Text"];
            prim.Color = Color.FromArgb(Convert.ToInt32(primRow["ColorA"]),
                                        Convert.ToInt32(primRow["ColorR"]),
                                        Convert.ToInt32(primRow["ColorG"]),
                                        Convert.ToInt32(primRow["ColorB"]));
            prim.Description = (string)primRow["Description"];
            prim.SitName = (string)primRow["SitName"];
            prim.TouchName = (string)primRow["TouchName"];
            // permissions
            prim.Flags = (PrimFlags)Convert.ToUInt32(primRow["ObjectFlags"]);
            //prim.creatorID = new UUID((Guid)primRow["creatorID"]);
            prim.CreatorIdentification = (string)primRow["CreatorID"].ToString();
            prim.OwnerID = new UUID((Guid)primRow["OwnerID"]);
            prim.GroupID = new UUID((Guid)primRow["GroupID"]);
            prim.LastOwnerID = new UUID((Guid)primRow["LastOwnerID"]);
            
            if (primRow["RezzerID"] != DBNull.Value)
                prim.RezzerID = new UUID((Guid)primRow["RezzerID"]);
            else
                prim.RezzerID = UUID.Zero;
                
            prim.OwnerMask = Convert.ToUInt32(primRow["OwnerMask"]);
            prim.NextOwnerMask = Convert.ToUInt32(primRow["NextOwnerMask"]);
            prim.GroupMask = Convert.ToUInt32(primRow["GroupMask"]);
            prim.EveryoneMask = Convert.ToUInt32(primRow["EveryoneMask"]);
            prim.BaseMask = Convert.ToUInt32(primRow["BaseMask"]);
            // vectors
            prim.OffsetPosition = new Vector3(
                                Convert.ToSingle(primRow["PositionX"]),
                                Convert.ToSingle(primRow["PositionY"]),
                                Convert.ToSingle(primRow["PositionZ"]));

            prim.GroupPosition = new Vector3(
                                    Convert.ToSingle(primRow["GroupPositionX"]),
                                    Convert.ToSingle(primRow["GroupPositionY"]),
                                    Convert.ToSingle(primRow["GroupPositionZ"]));

            prim.Velocity = new Vector3(
                                Convert.ToSingle(primRow["VelocityX"]),
                                Convert.ToSingle(primRow["VelocityY"]),
                                Convert.ToSingle(primRow["VelocityZ"]));

            prim.AngularVelocity = new Vector3(
                                Convert.ToSingle(primRow["AngularVelocityX"]),
                                Convert.ToSingle(primRow["AngularVelocityY"]),
                                Convert.ToSingle(primRow["AngularVelocityZ"]));

            prim.Acceleration = new Vector3(
                                Convert.ToSingle(primRow["AccelerationX"]),
                                Convert.ToSingle(primRow["AccelerationY"]),
                                Convert.ToSingle(primRow["AccelerationZ"]));

            // quaternions
            prim.RotationOffset = new Quaternion(
                                Convert.ToSingle(primRow["RotationX"]),
                                Convert.ToSingle(primRow["RotationY"]),
                                Convert.ToSingle(primRow["RotationZ"]),
                                Convert.ToSingle(primRow["RotationW"]));

            prim.SitTargetPositionLL = new Vector3(
                                Convert.ToSingle(primRow["SitTargetOffsetX"]),
                                Convert.ToSingle(primRow["SitTargetOffsetY"]),
                                Convert.ToSingle(primRow["SitTargetOffsetZ"]));


            prim.SitTargetOrientationLL = new Quaternion(
                                Convert.ToSingle(primRow["SitTargetOrientX"]),
                                Convert.ToSingle(primRow["SitTargetOrientY"]),
                                Convert.ToSingle(primRow["SitTargetOrientZ"]),
                                Convert.ToSingle(primRow["SitTargetOrientW"]));

            prim.StandOffset = new Vector3(
                               Convert.ToSingle(primRow["standtargetx"]),
                               Convert.ToSingle(primRow["standtargety"]),
                               Convert.ToSingle(primRow["standtargetz"]));

            prim.SitActiveRange = Convert.ToSingle(primRow["sitactrange"]);

            prim.PayPrice[0] = Convert.ToInt32(primRow["PayPrice"]);
            prim.PayPrice[1] = Convert.ToInt32(primRow["PayButton1"]);
            prim.PayPrice[2] = Convert.ToInt32(primRow["PayButton2"]);
            prim.PayPrice[3] = Convert.ToInt32(primRow["PayButton3"]);
            prim.PayPrice[4] = Convert.ToInt32(primRow["PayButton4"]);

            prim.Sound = new UUID((Guid)primRow["LoopedSound"]);
            prim.SoundGain = Convert.ToSingle(primRow["LoopedSoundGain"]);
            if (prim.Sound != UUID.Zero)
                prim.SoundFlags = 1; // If it's persisted at all, it's looped
            else
                prim.SoundFlags = 0;

            if (!(primRow["TextureAnimation"] is DBNull))
                prim.TextureAnimation = (Byte[])primRow["TextureAnimation"];
            if (!(primRow["ParticleSystem"] is DBNull))
                prim.ParticleSystem = (Byte[])primRow["ParticleSystem"];

            prim.SetCameraEyeOffset(new Vector3(
                                        Convert.ToSingle(primRow["CameraEyeOffsetX"]),
                                        Convert.ToSingle(primRow["CameraEyeOffsetY"]),
                                        Convert.ToSingle(primRow["CameraEyeOffsetZ"])
                                        ));

            prim.SetCameraAtOffset(new Vector3(
                                       Convert.ToSingle(primRow["CameraAtOffsetX"]),
                                       Convert.ToSingle(primRow["CameraAtOffsetY"]),
                                       Convert.ToSingle(primRow["CameraAtOffsetZ"])
                                       ));

            if (Convert.ToInt16(primRow["ForceMouselook"]) != 0)
                prim.SetForceMouselook(true);

            prim.ScriptAccessPin = Convert.ToInt32(primRow["ScriptAccessPin"]);

            if (Convert.ToInt16(primRow["AllowedDrop"]) != 0)
                prim.AllowedDrop = true;

            if (Convert.ToInt16(primRow["DieAtEdge"]) != 0)
                prim.DIE_AT_EDGE = true;

            prim.SalePrice = Convert.ToInt32(primRow["SalePrice"]);
            prim.ObjectSaleType = Convert.ToByte(primRow["SaleType"]);

            prim.Material = Convert.ToByte(primRow["Material"]);

            if (!(primRow["ClickAction"] is DBNull))
                prim.ClickAction = Convert.ToByte(primRow["ClickAction"]);

            prim.CollisionSound = new UUID((Guid)primRow["CollisionSound"]);
            prim.CollisionSoundVolume = Convert.ToSingle(primRow["CollisionSoundVolume"]);

            prim.PassTouches = (bool)primRow["PassTouches"];
            prim.PassCollisions = (bool)primRow["PassCollisions"];

            if (!(primRow["MediaURL"] is System.DBNull))
                prim.MediaUrl = (string)primRow["MediaURL"];

            if (!(primRow["DynAttrs"] is System.DBNull) && (string)primRow["DynAttrs"] != "")
                prim.DynAttrs = DAMap.FromXml((string)primRow["DynAttrs"]);
            else
                prim.DynAttrs = null;

            prim.PhysicsShapeType = Convert.ToByte(primRow["PhysicsShapeType"]);
            prim.Density = Convert.ToSingle(primRow["Density"]);
            prim.GravityModifier = Convert.ToSingle(primRow["GravityModifier"]);
            prim.Friction = Convert.ToSingle(primRow["Friction"]);
            prim.Restitution = Convert.ToSingle(primRow["Restitution"]);
            prim.RotationAxisLocks = Convert.ToByte(primRow["RotationAxisLocks"]);

            SOPVehicle vehicle = null;
            if (!(primRow["Vehicle"] is System.DBNull))
            {
                vehicle = SOPVehicle.FromXml2(primRow["Vehicle"].ToString());
                if (vehicle != null)
                    prim.VehicleParams = vehicle;
            }

            PhysicsInertiaData pdata = null;
            if (!(primRow["PhysInertia"] is System.DBNull))
                pdata = PhysicsInertiaData.FromXml2(primRow["PhysInertia"].ToString());
            prim.PhysicsInertia = pdata;

            int pseudocrc = Convert.ToInt32(primRow["pseudocrc"]);
            if(pseudocrc != 0)
                prim.PseudoCRC = pseudocrc;

            return prim;
        }

        /// <summary>
        /// Builds the prim shape from a datarecord.
        /// </summary>
        /// <param name="shapeRow">The row.</param>
        /// <returns></returns>
        private static PrimitiveBaseShape BuildShape(IDataRecord shapeRow)
        {
            PrimitiveBaseShape baseShape = new PrimitiveBaseShape();

            baseShape.Scale = new Vector3(
                        (float)Convert.ToDouble(shapeRow["ScaleX"]),
                        (float)Convert.ToDouble(shapeRow["ScaleY"]),
                        (float)Convert.ToDouble(shapeRow["ScaleZ"]));

            // paths
            baseShape.PCode = Convert.ToByte(shapeRow["PCode"]);
            baseShape.PathBegin = Convert.ToUInt16(shapeRow["PathBegin"]);
            baseShape.PathEnd = Convert.ToUInt16(shapeRow["PathEnd"]);
            baseShape.PathScaleX = Convert.ToByte(shapeRow["PathScaleX"]);
            baseShape.PathScaleY = Convert.ToByte(shapeRow["PathScaleY"]);
            baseShape.PathShearX = Convert.ToByte(shapeRow["PathShearX"]);
            baseShape.PathShearY = Convert.ToByte(shapeRow["PathShearY"]);
            baseShape.PathSkew = Convert.ToSByte(shapeRow["PathSkew"]);
            baseShape.PathCurve = Convert.ToByte(shapeRow["PathCurve"]);
            baseShape.PathRadiusOffset = Convert.ToSByte(shapeRow["PathRadiusOffset"]);
            baseShape.PathRevolutions = Convert.ToByte(shapeRow["PathRevolutions"]);
            baseShape.PathTaperX = Convert.ToSByte(shapeRow["PathTaperX"]);
            baseShape.PathTaperY = Convert.ToSByte(shapeRow["PathTaperY"]);
            baseShape.PathTwist = Convert.ToSByte(shapeRow["PathTwist"]);
            baseShape.PathTwistBegin = Convert.ToSByte(shapeRow["PathTwistBegin"]);
            // profile
            baseShape.ProfileBegin = Convert.ToUInt16(shapeRow["ProfileBegin"]);
            baseShape.ProfileEnd = Convert.ToUInt16(shapeRow["ProfileEnd"]);
            baseShape.ProfileCurve = Convert.ToByte(shapeRow["ProfileCurve"]);
            baseShape.ProfileHollow = Convert.ToUInt16(shapeRow["ProfileHollow"]);

            byte[] textureEntry = (byte[])shapeRow["Texture"];
            baseShape.TextureEntry = textureEntry;

            baseShape.ExtraParams = (byte[])shapeRow["ExtraParams"];

            try
            {
                baseShape.State = Convert.ToByte(shapeRow["State"]);
            }
            catch (InvalidCastException)
            {
            }

            if (!(shapeRow["Media"] is System.DBNull))
            {
                baseShape.Media = PrimitiveBaseShape.MediaList.FromXml((string)shapeRow["Media"]);
            }

            return baseShape;
        }

        /// <summary>
        /// Build a prim inventory item from the persisted data.
        /// </summary>
        /// <param name="inventoryRow"></param>
        /// <returns></returns>
        private static TaskInventoryItem BuildItem(IDataRecord inventoryRow)
        {
            TaskInventoryItem taskItem = new TaskInventoryItem();

            taskItem.ItemID = new UUID((Guid)inventoryRow["itemID"]);
            taskItem.ParentPartID = new UUID((Guid)inventoryRow["primID"]);
            taskItem.AssetID = new UUID((Guid)inventoryRow["assetID"]);
            taskItem.ParentID = new UUID((Guid)inventoryRow["parentFolderID"]);

            taskItem.InvType = Convert.ToInt32(inventoryRow["invType"]);
            taskItem.Type = Convert.ToInt32(inventoryRow["assetType"]);

            taskItem.Name = (string)inventoryRow["name"];
            taskItem.Description = (string)inventoryRow["description"];
            taskItem.CreationDate = Convert.ToUInt32(inventoryRow["creationDate"]);
            //taskItem.creatorID = new UUID((Guid)inventoryRow["creatorID"]);
            taskItem.CreatorIdentification = (string)inventoryRow["creatorID"].ToString();
            taskItem.OwnerID = new UUID((Guid)inventoryRow["ownerID"]);
            taskItem.LastOwnerID = new UUID((Guid)inventoryRow["lastOwnerID"]);
            taskItem.GroupID = new UUID((Guid)inventoryRow["groupID"]);

            taskItem.NextPermissions = Convert.ToUInt32(inventoryRow["nextPermissions"]);
            taskItem.CurrentPermissions = Convert.ToUInt32(inventoryRow["currentPermissions"]);
            taskItem.BasePermissions = Convert.ToUInt32(inventoryRow["basePermissions"]);
            taskItem.EveryonePermissions = Convert.ToUInt32(inventoryRow["everyonePermissions"]);
            taskItem.GroupPermissions = Convert.ToUInt32(inventoryRow["groupPermissions"]);
            taskItem.Flags = Convert.ToUInt32(inventoryRow["flags"]);

            return taskItem;
        }

        #endregion

        #region Create parameters methods

        /// <summary>
        /// Creates the prim inventory parameters.
        /// </summary>
        /// <param name="taskItem">item in inventory.</param>
        /// <returns></returns>
        private NpgsqlParameter[] CreatePrimInventoryParameters(TaskInventoryItem taskItem)
        {
            List<NpgsqlParameter> parameters = new List<NpgsqlParameter>();

            parameters.Add(_Database.CreateParameter("itemID", taskItem.ItemID));
            parameters.Add(_Database.CreateParameter("primID", taskItem.ParentPartID));
            parameters.Add(_Database.CreateParameter("assetID", taskItem.AssetID));
            parameters.Add(_Database.CreateParameter("parentFolderID", taskItem.ParentID));
            parameters.Add(_Database.CreateParameter("invType", taskItem.InvType));
            parameters.Add(_Database.CreateParameter("assetType", taskItem.Type));

            parameters.Add(_Database.CreateParameter("name", taskItem.Name));
            parameters.Add(_Database.CreateParameter("description", taskItem.Description));
            parameters.Add(_Database.CreateParameter("creationDate", taskItem.CreationDate));
            parameters.Add(_Database.CreateParameter("creatorID", taskItem.CreatorID));
            parameters.Add(_Database.CreateParameter("ownerID", taskItem.OwnerID));
            parameters.Add(_Database.CreateParameter("lastOwnerID", taskItem.LastOwnerID));
            parameters.Add(_Database.CreateParameter("groupID", taskItem.GroupID));
            parameters.Add(_Database.CreateParameter("nextPermissions", taskItem.NextPermissions));
            parameters.Add(_Database.CreateParameter("currentPermissions", taskItem.CurrentPermissions));
            parameters.Add(_Database.CreateParameter("basePermissions", taskItem.BasePermissions));
            parameters.Add(_Database.CreateParameter("everyonePermissions", taskItem.EveryonePermissions));
            parameters.Add(_Database.CreateParameter("groupPermissions", taskItem.GroupPermissions));
            parameters.Add(_Database.CreateParameter("flags", taskItem.Flags));

            return parameters.ToArray();
        }

        /// <summary>
        /// Creates the region setting parameters.
        /// </summary>
        /// <param name="settings">regionsettings.</param>
        /// <returns></returns>
        private NpgsqlParameter[] CreateRegionSettingParameters(RegionSettings settings)
        {
            List<NpgsqlParameter> parameters = new List<NpgsqlParameter>();

            parameters.Add(_Database.CreateParameter("regionUUID", settings.RegionUUID));
            parameters.Add(_Database.CreateParameter("block_terraform", settings.BlockTerraform));
            parameters.Add(_Database.CreateParameter("block_fly", settings.BlockFly));
            parameters.Add(_Database.CreateParameter("allow_damage", settings.AllowDamage));
            parameters.Add(_Database.CreateParameter("restrict_pushing", settings.RestrictPushing));
            parameters.Add(_Database.CreateParameter("allow_land_resell", settings.AllowLandResell));
            parameters.Add(_Database.CreateParameter("allow_land_join_divide", settings.AllowLandJoinDivide));
            parameters.Add(_Database.CreateParameter("block_show_in_search", settings.BlockShowInSearch));
            parameters.Add(_Database.CreateParameter("agent_limit", settings.AgentLimit));
            parameters.Add(_Database.CreateParameter("object_bonus", settings.ObjectBonus));
            parameters.Add(_Database.CreateParameter("maturity", settings.Maturity));
            parameters.Add(_Database.CreateParameter("disable_scripts", settings.DisableScripts));
            parameters.Add(_Database.CreateParameter("disable_collisions", settings.DisableCollisions));
            parameters.Add(_Database.CreateParameter("disable_physics", settings.DisablePhysics));
            parameters.Add(_Database.CreateParameter("terrain_texture_1", settings.TerrainTexture1));
            parameters.Add(_Database.CreateParameter("terrain_texture_2", settings.TerrainTexture2));
            parameters.Add(_Database.CreateParameter("terrain_texture_3", settings.TerrainTexture3));
            parameters.Add(_Database.CreateParameter("terrain_texture_4", settings.TerrainTexture4));
            parameters.Add(_Database.CreateParameter("elevation_1_nw", settings.Elevation1NW));
            parameters.Add(_Database.CreateParameter("elevation_2_nw", settings.Elevation2NW));
            parameters.Add(_Database.CreateParameter("elevation_1_ne", settings.Elevation1NE));
            parameters.Add(_Database.CreateParameter("elevation_2_ne", settings.Elevation2NE));
            parameters.Add(_Database.CreateParameter("elevation_1_se", settings.Elevation1SE));
            parameters.Add(_Database.CreateParameter("elevation_2_se", settings.Elevation2SE));
            parameters.Add(_Database.CreateParameter("elevation_1_sw", settings.Elevation1SW));
            parameters.Add(_Database.CreateParameter("elevation_2_sw", settings.Elevation2SW));
            parameters.Add(_Database.CreateParameter("water_height", settings.WaterHeight));
            parameters.Add(_Database.CreateParameter("terrain_raise_limit", settings.TerrainRaiseLimit));
            parameters.Add(_Database.CreateParameter("terrain_lower_limit", settings.TerrainLowerLimit));
            parameters.Add(_Database.CreateParameter("use_estate_sun", settings.UseEstateSun));
            parameters.Add(_Database.CreateParameter("Sandbox", settings.Sandbox));
            parameters.Add(_Database.CreateParameter("fixed_sun", settings.FixedSun));
            parameters.Add(_Database.CreateParameter("sun_position", settings.SunPosition));
            parameters.Add(_Database.CreateParameter("sunvectorx", settings.SunVector.X));
            parameters.Add(_Database.CreateParameter("sunvectory", settings.SunVector.Y));
            parameters.Add(_Database.CreateParameter("sunvectorz", settings.SunVector.Z));
            parameters.Add(_Database.CreateParameter("covenant", settings.Covenant));
            parameters.Add(_Database.CreateParameter("covenant_datetime", settings.CovenantChangedDateTime));
            parameters.Add(_Database.CreateParameter("Loaded_Creation_DateTime", settings.LoadedCreationDateTime));
            parameters.Add(_Database.CreateParameter("Loaded_Creation_ID", settings.LoadedCreationID));
            parameters.Add(_Database.CreateParameter("TerrainImageID", settings.TerrainImageID));
            parameters.Add(_Database.CreateParameter("ParcelImageID", settings.ParcelImageID));
            parameters.Add(_Database.CreateParameter("TelehubObject", settings.TelehubObject));

            parameters.Add(_Database.CreateParameter("cacheID", settings.CacheID));

            return parameters.ToArray();
        }

        /// <summary>
        /// Creates the land parameters.
        /// </summary>
        /// <param name="land">land parameters.</param>
        /// <param name="regionUUID">region UUID.</param>
        /// <returns></returns>
        private NpgsqlParameter[] CreateLandParameters(LandData land, UUID regionUUID)
        {
            List<NpgsqlParameter> parameters = new List<NpgsqlParameter>();

            parameters.Add(_Database.CreateParameter("UUID", land.GlobalID));
            parameters.Add(_Database.CreateParameter("RegionUUID", regionUUID));
            parameters.Add(_Database.CreateParameter("LocalLandID", land.LocalID));

            // Bitmap is a byte[512]
            parameters.Add(_Database.CreateParameter("Bitmap", land.Bitmap));

            parameters.Add(_Database.CreateParameter("Name", land.Name));
            parameters.Add(_Database.CreateParameter("Description", land.Description));
            parameters.Add(_Database.CreateParameter("OwnerUUID", land.OwnerID));
            parameters.Add(_Database.CreateParameter("IsGroupOwned", land.IsGroupOwned));
            parameters.Add(_Database.CreateParameter("Area", land.Area));
            parameters.Add(_Database.CreateParameter("AuctionID", land.AuctionID)); //Unemplemented
            parameters.Add(_Database.CreateParameter("Category", (int)land.Category)); //Enum libsecondlife.Parcel.ParcelCategory
            parameters.Add(_Database.CreateParameter("ClaimDate", land.ClaimDate));
            parameters.Add(_Database.CreateParameter("ClaimPrice", land.ClaimPrice));
            parameters.Add(_Database.CreateParameter("GroupUUID", land.GroupID));
            parameters.Add(_Database.CreateParameter("SalePrice", land.SalePrice));
            parameters.Add(_Database.CreateParameter("LandStatus", (int)land.Status)); //Enum. libsecondlife.Parcel.ParcelStatus
            parameters.Add(_Database.CreateParameter("LandFlags", land.Flags));
            parameters.Add(_Database.CreateParameter("LandingType", Convert.ToInt32( land.LandingType) ));
            parameters.Add(_Database.CreateParameter("MediaAutoScale", Convert.ToInt32( land.MediaAutoScale )));
            parameters.Add(_Database.CreateParameter("MediaTextureUUID", land.MediaID));
            parameters.Add(_Database.CreateParameter("MediaURL", land.MediaURL));
            parameters.Add(_Database.CreateParameter("MusicURL", land.MusicURL));
            parameters.Add(_Database.CreateParameter("PassHours", land.PassHours));
            parameters.Add(_Database.CreateParameter("PassPrice", land.PassPrice));
            parameters.Add(_Database.CreateParameter("SnapshotUUID", land.SnapshotID));
            parameters.Add(_Database.CreateParameter("UserLocationX", land.UserLocation.X));
            parameters.Add(_Database.CreateParameter("UserLocationY", land.UserLocation.Y));
            parameters.Add(_Database.CreateParameter("UserLocationZ", land.UserLocation.Z));
            parameters.Add(_Database.CreateParameter("UserLookAtX", land.UserLookAt.X));
            parameters.Add(_Database.CreateParameter("UserLookAtY", land.UserLookAt.Y));
            parameters.Add(_Database.CreateParameter("UserLookAtZ", land.UserLookAt.Z));
            parameters.Add(_Database.CreateParameter("AuthBuyerID", land.AuthBuyerID));
            parameters.Add(_Database.CreateParameter("OtherCleanTime", land.OtherCleanTime));
            parameters.Add(_Database.CreateParameter("Dwell", land.Dwell));
            parameters.Add(_Database.CreateParameter("MediaDescription", land.MediaDescription));
            parameters.Add(_Database.CreateParameter("MediaType", land.MediaType));
            parameters.Add(_Database.CreateParameter("MediaWidth", land.MediaWidth));
            parameters.Add(_Database.CreateParameter("MediaHeight", land.MediaHeight));
            parameters.Add(_Database.CreateParameter("MediaLoop", land.MediaLoop));
            parameters.Add(_Database.CreateParameter("ObscureMusic", land.ObscureMusic));
            parameters.Add(_Database.CreateParameter("ObscureMedia", land.ObscureMedia));
            parameters.Add(_Database.CreateParameter("SeeAVs", land.SeeAVs));
            parameters.Add(_Database.CreateParameter("AnyAVSounds", land.AnyAVSounds));
            parameters.Add(_Database.CreateParameter("GroupAVSounds", land.GroupAVSounds));

            if (land.Environment == null)
                parameters.Add(_Database.CreateParameter("environment", ""));
            else
            {
                try
                {
                    parameters.Add(_Database.CreateParameter("environment", ViewerEnvironment.ToOSDString(land.Environment)));
                }
                catch
                {
                    parameters.Add(_Database.CreateParameter("environment", ""));
                }
            }

            return parameters.ToArray();
        }

        /// <summary>
        /// Creates the land access parameters.
        /// </summary>
        /// <param name="parcelAccessEntry">parcel access entry.</param>
        /// <param name="parcelID">parcel ID.</param>
        /// <returns></returns>
        private NpgsqlParameter[] CreateLandAccessParameters(LandAccessEntry parcelAccessEntry, UUID parcelID)
        {
            List<NpgsqlParameter> parameters = new List<NpgsqlParameter>();

            parameters.Add(_Database.CreateParameter("LandUUID", parcelID));
            parameters.Add(_Database.CreateParameter("AccessUUID", parcelAccessEntry.AgentID));
            parameters.Add(_Database.CreateParameter("Flags", parcelAccessEntry.Flags));
            parameters.Add(_Database.CreateParameter("Expires", parcelAccessEntry.Expires));

            return parameters.ToArray();
        }

        /// <summary>
        /// Creates the prim parameters for storing in DB.
        /// </summary>
        /// <param name="prim">Basic data of SceneObjectpart prim.</param>
        /// <param name="sceneGroupID">The scenegroup ID.</param>
        /// <param name="regionUUID">The region ID.</param>
        /// <returns></returns>
        private NpgsqlParameter[] CreatePrimParameters(SceneObjectPart prim, UUID sceneGroupID, UUID regionUUID)
        {
            List<NpgsqlParameter> parameters = new List<NpgsqlParameter>();

            parameters.Add(_Database.CreateParameter("UUID", prim.UUID));
            parameters.Add(_Database.CreateParameter("RegionUUID", regionUUID));
            parameters.Add(_Database.CreateParameter("CreationDate", prim.CreationDate));
            parameters.Add(_Database.CreateParameter("Name", prim.Name));
            parameters.Add(_Database.CreateParameter("SceneGroupID", sceneGroupID));
            // the UUID of the root part for this SceneObjectGroup
            // various text fields
            parameters.Add(_Database.CreateParameter("Text", prim.Text));
            parameters.Add(_Database.CreateParameter("ColorR", prim.Color.R));
            parameters.Add(_Database.CreateParameter("ColorG", prim.Color.G));
            parameters.Add(_Database.CreateParameter("ColorB", prim.Color.B));
            parameters.Add(_Database.CreateParameter("ColorA", prim.Color.A));
            parameters.Add(_Database.CreateParameter("Description", prim.Description));
            parameters.Add(_Database.CreateParameter("SitName", prim.SitName));
            parameters.Add(_Database.CreateParameter("TouchName", prim.TouchName));
            // permissions
            parameters.Add(_Database.CreateParameter("ObjectFlags", (uint)prim.Flags));
            parameters.Add(_Database.CreateParameter("CreatorID", prim.CreatorID));
            parameters.Add(_Database.CreateParameter("OwnerID", prim.OwnerID));
            parameters.Add(_Database.CreateParameter("GroupID", prim.GroupID));
            parameters.Add(_Database.CreateParameter("LastOwnerID", prim.LastOwnerID));
            parameters.Add(_Database.CreateParameter("RezzerID", prim.RezzerID));
            parameters.Add(_Database.CreateParameter("OwnerMask", prim.OwnerMask));
            parameters.Add(_Database.CreateParameter("NextOwnerMask", prim.NextOwnerMask));
            parameters.Add(_Database.CreateParameter("GroupMask", prim.GroupMask));
            parameters.Add(_Database.CreateParameter("EveryoneMask", prim.EveryoneMask));
            parameters.Add(_Database.CreateParameter("BaseMask", prim.BaseMask));
            // vectors
            parameters.Add(_Database.CreateParameter("PositionX", prim.OffsetPosition.X));
            parameters.Add(_Database.CreateParameter("PositionY", prim.OffsetPosition.Y));
            parameters.Add(_Database.CreateParameter("PositionZ", prim.OffsetPosition.Z));
            parameters.Add(_Database.CreateParameter("GroupPositionX", prim.GroupPosition.X));
            parameters.Add(_Database.CreateParameter("GroupPositionY", prim.GroupPosition.Y));
            parameters.Add(_Database.CreateParameter("GroupPositionZ", prim.GroupPosition.Z));
            parameters.Add(_Database.CreateParameter("VelocityX", prim.Velocity.X));
            parameters.Add(_Database.CreateParameter("VelocityY", prim.Velocity.Y));
            parameters.Add(_Database.CreateParameter("VelocityZ", prim.Velocity.Z));
            parameters.Add(_Database.CreateParameter("AngularVelocityX", prim.AngularVelocity.X));
            parameters.Add(_Database.CreateParameter("AngularVelocityY", prim.AngularVelocity.Y));
            parameters.Add(_Database.CreateParameter("AngularVelocityZ", prim.AngularVelocity.Z));
            parameters.Add(_Database.CreateParameter("AccelerationX", prim.Acceleration.X));
            parameters.Add(_Database.CreateParameter("AccelerationY", prim.Acceleration.Y));
            parameters.Add(_Database.CreateParameter("AccelerationZ", prim.Acceleration.Z));
            // quaternions
            parameters.Add(_Database.CreateParameter("RotationX", prim.RotationOffset.X));
            parameters.Add(_Database.CreateParameter("RotationY", prim.RotationOffset.Y));
            parameters.Add(_Database.CreateParameter("RotationZ", prim.RotationOffset.Z));
            parameters.Add(_Database.CreateParameter("RotationW", prim.RotationOffset.W));

            // Sit target
            Vector3 sitTargetPos = prim.SitTargetPositionLL;
            parameters.Add(_Database.CreateParameter("SitTargetOffsetX", sitTargetPos.X));
            parameters.Add(_Database.CreateParameter("SitTargetOffsetY", sitTargetPos.Y));
            parameters.Add(_Database.CreateParameter("SitTargetOffsetZ", sitTargetPos.Z));

            Quaternion sitTargetOrient = prim.SitTargetOrientationLL;
            parameters.Add(_Database.CreateParameter("SitTargetOrientW", sitTargetOrient.W));
            parameters.Add(_Database.CreateParameter("SitTargetOrientX", sitTargetOrient.X));
            parameters.Add(_Database.CreateParameter("SitTargetOrientY", sitTargetOrient.Y));
            parameters.Add(_Database.CreateParameter("SitTargetOrientZ", sitTargetOrient.Z));

            Vector3 standTargetPos = prim.StandOffset;
            parameters.Add(_Database.CreateParameter("standtargetx", standTargetPos.X));
            parameters.Add(_Database.CreateParameter("standtargety", standTargetPos.Y));
            parameters.Add(_Database.CreateParameter("standtargetz", standTargetPos.Z));

            parameters.Add(_Database.CreateParameter("sitactrange", prim.SitActiveRange));

            parameters.Add(_Database.CreateParameter("PayPrice", prim.PayPrice[0]));
            parameters.Add(_Database.CreateParameter("PayButton1", prim.PayPrice[1]));
            parameters.Add(_Database.CreateParameter("PayButton2", prim.PayPrice[2]));
            parameters.Add(_Database.CreateParameter("PayButton3", prim.PayPrice[3]));
            parameters.Add(_Database.CreateParameter("PayButton4", prim.PayPrice[4]));

            if ((prim.SoundFlags & 1) != 0) // Looped
            {
                parameters.Add(_Database.CreateParameter("LoopedSound", prim.Sound));
                parameters.Add(_Database.CreateParameter("LoopedSoundGain", prim.SoundGain));
            }
            else
            {
                parameters.Add(_Database.CreateParameter("LoopedSound", UUID.Zero));
                parameters.Add(_Database.CreateParameter("LoopedSoundGain", 0.0f));
            }

            parameters.Add(_Database.CreateParameter("TextureAnimation", prim.TextureAnimation));
            parameters.Add(_Database.CreateParameter("ParticleSystem", prim.ParticleSystem));

            parameters.Add(_Database.CreateParameter("CameraEyeOffsetX", prim.GetCameraEyeOffset().X));
            parameters.Add(_Database.CreateParameter("CameraEyeOffsetY", prim.GetCameraEyeOffset().Y));
            parameters.Add(_Database.CreateParameter("CameraEyeOffsetZ", prim.GetCameraEyeOffset().Z));

            parameters.Add(_Database.CreateParameter("CameraAtOffsetX", prim.GetCameraAtOffset().X));
            parameters.Add(_Database.CreateParameter("CameraAtOffsetY", prim.GetCameraAtOffset().Y));
            parameters.Add(_Database.CreateParameter("CameraAtOffsetZ", prim.GetCameraAtOffset().Z));

            if (prim.GetForceMouselook())
                parameters.Add(_Database.CreateParameter("ForceMouselook", 1));
            else
                parameters.Add(_Database.CreateParameter("ForceMouselook", 0));

            parameters.Add(_Database.CreateParameter("ScriptAccessPin", prim.ScriptAccessPin));

            if (prim.AllowedDrop)
                parameters.Add(_Database.CreateParameter("AllowedDrop", 1));
            else
                parameters.Add(_Database.CreateParameter("AllowedDrop", 0));

            if (prim.DIE_AT_EDGE)
                parameters.Add(_Database.CreateParameter("DieAtEdge", 1));
            else
                parameters.Add(_Database.CreateParameter("DieAtEdge", 0));

            parameters.Add(_Database.CreateParameter("SalePrice", prim.SalePrice));
            parameters.Add(_Database.CreateParameter("SaleType", prim.ObjectSaleType));

            byte clickAction = prim.ClickAction;
            parameters.Add(_Database.CreateParameter("ClickAction", clickAction));

            parameters.Add(_Database.CreateParameter("Material", prim.Material));

            parameters.Add(_Database.CreateParameter("CollisionSound", prim.CollisionSound));
            parameters.Add(_Database.CreateParameter("CollisionSoundVolume", prim.CollisionSoundVolume));

            parameters.Add(_Database.CreateParameter("PassTouches", (bool)prim.PassTouches));
            parameters.Add(_Database.CreateParameter("PassCollisions", (bool)prim.PassCollisions));

            if (prim.PassTouches)
                parameters.Add(_Database.CreateParameter("PassTouches", true));
            else
                parameters.Add(_Database.CreateParameter("PassTouches", false));

            if (prim.PassCollisions)
                parameters.Add(_Database.CreateParameter("PassCollisions", true));
            else
                parameters.Add(_Database.CreateParameter("PassCollisions", false));

            parameters.Add(_Database.CreateParameter("LinkNumber", prim.LinkNum));
            parameters.Add(_Database.CreateParameter("MediaURL", prim.MediaUrl));

            if (prim.VehicleParams != null)
                parameters.Add(_Database.CreateParameter("Vehicle", prim.VehicleParams.ToXml2()));
            else
                parameters.Add(_Database.CreateParameter("Vehicle", string.Empty));

            if (prim.PhysicsInertia != null)
                parameters.Add(_Database.CreateParameter("PhysInertia", prim.PhysicsInertia.ToXml2()));
            else
                parameters.Add(_Database.CreateParameter("PhysInertia", string.Empty));

            if (prim.DynAttrs != null && prim.DynAttrs.CountNamespaces > 0)
                parameters.Add(_Database.CreateParameter("DynAttrs", prim.DynAttrs.ToXml()));
            else
                parameters.Add(_Database.CreateParameter("DynAttrs", null));

            parameters.Add(_Database.CreateParameter("PhysicsShapeType", prim.PhysicsShapeType));
            parameters.Add(_Database.CreateParameter("Density", (double)prim.Density));
            parameters.Add(_Database.CreateParameter("GravityModifier", (double)prim.GravityModifier));
            parameters.Add(_Database.CreateParameter("Friction", (double)prim.Friction));
            parameters.Add(_Database.CreateParameter("Restitution", (double)prim.Restitution));
            parameters.Add(_Database.CreateParameter("RotationAxisLocks", prim.RotationAxisLocks));

            parameters.Add(_Database.CreateParameter("pseudocrc", prim.PseudoCRC));

            return parameters.ToArray();
        }

        /// <summary>
        /// Creates the primshape parameters for storing in DB.
        /// </summary>
        /// <param name="prim">Basic data of SceneObjectpart prim.</param>
        /// <param name="sceneGroupID">The scene group ID.</param>
        /// <param name="regionUUID">The region UUID.</param>
        /// <returns></returns>
        private NpgsqlParameter[] CreatePrimShapeParameters(SceneObjectPart prim, UUID sceneGroupID, UUID regionUUID)
        {
            List<NpgsqlParameter> parameters = new List<NpgsqlParameter>();

            PrimitiveBaseShape s = prim.Shape;
            parameters.Add(_Database.CreateParameter("UUID", prim.UUID));
            // shape is an enum
            parameters.Add(_Database.CreateParameter("Shape", 0));
            // vectors
            parameters.Add(_Database.CreateParameter("ScaleX", s.Scale.X));
            parameters.Add(_Database.CreateParameter("ScaleY", s.Scale.Y));
            parameters.Add(_Database.CreateParameter("ScaleZ", s.Scale.Z));
            // paths
            parameters.Add(_Database.CreateParameter("PCode", s.PCode));
            parameters.Add(_Database.CreateParameter("PathBegin", s.PathBegin));
            parameters.Add(_Database.CreateParameter("PathEnd", s.PathEnd));
            parameters.Add(_Database.CreateParameter("PathScaleX", s.PathScaleX));
            parameters.Add(_Database.CreateParameter("PathScaleY", s.PathScaleY));
            parameters.Add(_Database.CreateParameter("PathShearX", s.PathShearX));
            parameters.Add(_Database.CreateParameter("PathShearY", s.PathShearY));
            parameters.Add(_Database.CreateParameter("PathSkew", s.PathSkew));
            parameters.Add(_Database.CreateParameter("PathCurve", s.PathCurve));
            parameters.Add(_Database.CreateParameter("PathRadiusOffset", s.PathRadiusOffset));
            parameters.Add(_Database.CreateParameter("PathRevolutions", s.PathRevolutions));
            parameters.Add(_Database.CreateParameter("PathTaperX", s.PathTaperX));
            parameters.Add(_Database.CreateParameter("PathTaperY", s.PathTaperY));
            parameters.Add(_Database.CreateParameter("PathTwist", s.PathTwist));
            parameters.Add(_Database.CreateParameter("PathTwistBegin", s.PathTwistBegin));
            // profile
            parameters.Add(_Database.CreateParameter("ProfileBegin", s.ProfileBegin));
            parameters.Add(_Database.CreateParameter("ProfileEnd", s.ProfileEnd));
            parameters.Add(_Database.CreateParameter("ProfileCurve", s.ProfileCurve));
            parameters.Add(_Database.CreateParameter("ProfileHollow", s.ProfileHollow));
            parameters.Add(_Database.CreateParameter("Texture", s.TextureEntry));
            parameters.Add(_Database.CreateParameter("ExtraParams", s.ExtraParams));
            parameters.Add(_Database.CreateParameter("State", s.State));

            if (null == s.Media)
            {
                parameters.Add(_Database.CreateParameter("Media", DBNull.Value));
            }
            else
            {
                parameters.Add(_Database.CreateParameter("Media", s.Media.ToXml()));
            }

            return parameters.ToArray();
        }

        #endregion

        #endregion

        private void LoadSpawnPoints(RegionSettings rs)
        {
            rs.ClearSpawnPoints();

            string sql = @"SELECT ""Yaw"", ""Pitch"", ""Distance"" FROM spawn_points WHERE ""RegionUUID"" = :RegionUUID";

            using (NpgsqlConnection conn = new NpgsqlConnection(m_connectionString))
            using (NpgsqlCommand cmd = new NpgsqlCommand(sql, conn))
            {
                cmd.Parameters.Add(_Database.CreateParameter("RegionUUID", rs.RegionUUID));
                conn.Open();
                using (NpgsqlDataReader reader = cmd.ExecuteReader())
                {
                    if (reader.Read())
                    {
                        SpawnPoint sp = new SpawnPoint();

                        sp.Yaw = (float)reader["Yaw"];
                        sp.Pitch = (float)reader["Pitch"];
                        sp.Distance = (float)reader["Distance"];

                        rs.AddSpawnPoint(sp);
                    }
                }
            }
        }

        private void SaveSpawnPoints(RegionSettings rs)
        {
            string sql = @"DELETE FROM spawn_points WHERE ""RegionUUID"" = :RegionUUID";
            using (NpgsqlConnection conn = new NpgsqlConnection(m_connectionString))
            using (NpgsqlCommand cmd = new NpgsqlCommand(sql, conn))
            {
                cmd.Parameters.Add(_Database.CreateParameter("RegionUUID", rs.RegionUUID));
                conn.Open();
                cmd.ExecuteNonQuery();
            }
            foreach (SpawnPoint p in rs.SpawnPoints())
            {
                sql = @"INSERT INTO spawn_points (""RegionUUID"", ""Yaw"", ""Pitch"", ""Distance"") VALUES (:RegionUUID, :Yaw, :Pitch, :Distance)";
                using (NpgsqlConnection conn = new NpgsqlConnection(m_connectionString))
                using (NpgsqlCommand cmd = new NpgsqlCommand(sql, conn))
                {
                    cmd.Parameters.Add(_Database.CreateParameter("RegionUUID", rs.RegionUUID));
                    cmd.Parameters.Add(_Database.CreateParameter("Yaw", p.Yaw));
                    cmd.Parameters.Add(_Database.CreateParameter("Pitch", p.Pitch));
                    cmd.Parameters.Add(_Database.CreateParameter("Distance", p.Distance));
                    conn.Open();
                    cmd.ExecuteNonQuery();
                }
            }
        }

        public UUID[] GetObjectIDs(UUID regionID)
        {
            return new UUID[0];
        }

        public void SaveExtra(UUID regionID, string name, string value)
        {
        }

        public void RemoveExtra(UUID regionID, string name)
        {
        }

        public Dictionary<string, string> GetExtra(UUID regionID)
        {
            return null;
        }
    }
}