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MSSQLMigration.cs 3.6 KB

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  1. /*
  2. * Copyright (c) Contributors, http://opensimulator.org/
  3. * See CONTRIBUTORS.TXT for a full list of copyright holders.
  4. *
  5. * Redistribution and use in source and binary forms, with or without
  6. * modification, are permitted provided that the following conditions are met:
  7. * * Redistributions of source code must retain the above copyright
  8. * notice, this list of conditions and the following disclaimer.
  9. * * Redistributions in binary form must reproduce the above copyright
  10. * notice, this list of conditions and the following disclaimer in the
  11. * documentation and/or other materials provided with the distribution.
  12. * * Neither the name of the OpenSimulator Project nor the
  13. * names of its contributors may be used to endorse or promote products
  14. * derived from this software without specific prior written permission.
  15. *
  16. * THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY
  17. * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
  18. * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  19. * DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
  20. * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
  21. * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  22. * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
  23. * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  24. * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
  25. * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  26. */
  27. using System;
  28. using System.Data;
  29. using System.Data.Common;
  30. using System.Reflection;
  31. using System.Data.SqlClient;
  32. namespace OpenSim.Data.MSSQL
  33. {
  34. public class MSSQLMigration : Migration
  35. {
  36. public MSSQLMigration(DbConnection conn, Assembly assem, string type)
  37. : base(conn, assem, type)
  38. {
  39. }
  40. public MSSQLMigration(DbConnection conn, Assembly assem, string subtype, string type)
  41. : base(conn, assem, subtype, type)
  42. {
  43. }
  44. protected override int FindVersion(DbConnection conn, string type)
  45. {
  46. int version = 0;
  47. using (DbCommand cmd = conn.CreateCommand())
  48. {
  49. try
  50. {
  51. cmd.CommandText = "select top 1 version from migrations where name = '" + type + "' order by version desc"; //Must be
  52. using (IDataReader reader = cmd.ExecuteReader())
  53. {
  54. if (reader.Read())
  55. {
  56. version = Convert.ToInt32(reader["version"]);
  57. }
  58. reader.Close();
  59. }
  60. }
  61. catch
  62. {
  63. // Return -1 to indicate table does not exist
  64. return -1;
  65. }
  66. }
  67. return version;
  68. }
  69. protected override void ExecuteScript(DbConnection conn, string[] script)
  70. {
  71. if (!(conn is SqlConnection))
  72. {
  73. base.ExecuteScript(conn, script);
  74. return;
  75. }
  76. foreach (string sql in script)
  77. {
  78. try
  79. {
  80. using (SqlCommand cmd = new SqlCommand(sql, (SqlConnection)conn))
  81. {
  82. cmd.ExecuteNonQuery();
  83. }
  84. }
  85. catch (Exception)
  86. {
  87. throw new Exception(sql);
  88. }
  89. }
  90. }
  91. }
  92. }