1 files changed, 102 insertions, 0 deletions

diff --git a/OpenSim/Data/PGSQL/PGSQLMigration.cs b/OpenSim/Data/PGSQL/PGSQLMigration.cs
new file mode 100644
index 0000000..709fde0
--- /dev/null
+++ b/OpenSim/Data/PGSQL/PGSQLMigration.cs
@@ -0,0 +1,102 @@
+/*
+ * 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
+ * DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+using Npgsql;
+using System;
+using System.Data;
+using System.Data.Common;
+using System.Reflection;
+
+namespace OpenSim.Data.PGSQL
+{
+    public class PGSQLMigration : Migration
+    {
+        public PGSQLMigration(NpgsqlConnection conn, Assembly assem, string type)
+            : base(conn, assem, type)
+        {
+        }
+
+        public PGSQLMigration(NpgsqlConnection conn, Assembly assem, string subtype, string type)
+            : base(conn, assem, subtype, type)
+        {
+        }
+
+        protected override int FindVersion(DbConnection conn, string type)
+        {
+            int version = 0;
+            NpgsqlConnection lcConn = (NpgsqlConnection)conn;
+
+            using (NpgsqlCommand cmd = lcConn.CreateCommand())
+            {
+                try
+                {
+                    cmd.CommandText = "select version from migrations where name = '" + type + "' " + 
+                                      " order by version desc limit 1"; //Must be 
+                    using (NpgsqlDataReader reader = cmd.ExecuteReader())
+                    {
+                        if (reader.Read())
+                        {
+                            version = Convert.ToInt32(reader["version"]);
+                        }
+                        reader.Close();
+                    }
+                }
+                catch
+                {
+                    // Return -1 to indicate table does not exist
+                    return -1;
+                }
+            }
+            return version;
+        }
+
+        protected override void ExecuteScript(DbConnection conn, string[] script)
+        {
+            if (!(conn is NpgsqlConnection))
+            {
+                base.ExecuteScript(conn, script);
+                return;
+            }
+
+            foreach (string sql in script)
+            {
+                try
+                {
+                    using (NpgsqlCommand cmd = new NpgsqlCommand(sql, (NpgsqlConnection)conn))
+                    {
+                        cmd.ExecuteNonQuery();
+                    }
+                }
+                catch (Exception)
+                {
+                    throw new Exception(sql);
+
+                }
+            }
+        }
+    }
+}