Added CreateIndex to Migrator

Migrator.net/Migrator.Framework/ITransformationProvider.cs

@@ -13,7 +13,7 @@ namespace Migrator.Framework
         /// <summary>
         /// Get this provider or a NoOp provider if you are not running in the context of 'provider'.
         /// </summary>
-        ITransformationProvider this[string provider] { get;}
+        ITransformationProvider this[string provider] { get; }
 
         /// <summary>
         /// The list of Migrations currently applied to the database.
@@ -194,6 +194,15 @@ namespace Migrator.Framework
         /// <param name="constraint"></param>
         void GenerateForeignKey(string foreignTable, string primaryTable, ForeignKeyConstraint constraint);
 
+        /// <summary>
+        /// Add an Index to a table
+        /// </summary>
+        /// <param name="name">The name of the index to add.</param>
+        /// <param name="table">The name of the table that will get the index.</param>
+        /// <param name="unique">If the index will be unique</param>
+        /// <param name="columns">The name of the column or columns that are in the index.</param>
+        void AddIndex(string name, string table, bool unique,  params string[] columns);
+
         /// <summary>
         /// Add a primary key to a table
         /// </summary>
@@ -376,6 +385,13 @@ namespace Migrator.Framework
         /// <param name="name">The name of the constraint to remove</param>
         void RemoveConstraint(string table, string name);
 
+        /// <summary>
+        /// Remove an existing index
+        /// </summary>
+        /// <param name="table">The table that contains the index.</param>
+        /// <param name="name">The name of the index to remove</param>
+        void RemoveIndex(string table, string name);
+
         /// <summary>
         /// Remove an existing table
         /// </summary>

Migrator.net/Migrator.Providers/NoOpTransformationProvider.cs

@@ -1,3 +1,4 @@
+using System;
 using System.Data;
 using Migrator.Framework;
 using ForeignKeyConstraint=Migrator.Framework.ForeignKeyConstraint;
@@ -54,6 +55,11 @@ namespace Migrator.Providers
             // No Op
         }
 
+        public void RemoveIndex(string table, string name)
+        {
+            // No Op
+        }
+
         public void AddTable(string name, params Column[] columns)
         {
             // No Op
@@ -129,6 +135,16 @@ namespace Migrator.Providers
             // No Op
         }
 
+        public void AddIndex(string name, string table, params string[] columns)
+        {
+            //No Op
+        }
+
+        public void AddIndex(string name, string table, bool unique, params string[] columns)
+        {
+            //No Op
+        }
+
         public void AddPrimaryKey(string name, string table, params string[] columns)
         {
             // No Op

Migrator.net/Migrator.Providers/TransformationProvider.cs

@@ -134,6 +134,11 @@ namespace Migrator.Providers
             }
         }
 
+        public void RemoveIndex(string table, string name)
+        {
+            throw new NotImplementedException();
+        }
+
         public virtual void AddTable(string table, string engine, string columns)
         {
             table = _dialect.TableNameNeedsQuote ? _dialect.Quote(table) : table;
@@ -409,6 +414,23 @@ namespace Migrator.Providers
             AddColumn(table, column, type, size, property, null);
         }
 
+        public void AddIndex(string name, string table, bool unique, params string[] columns)
+        {
+            try
+            {
+                var uniqueText = "";
+                if (unique) uniqueText = "UNIQUE";
+
+                var command = String.Format("CREATE {0} INDEX {1} ON {2} ({3})", uniqueText, name, table, String.Join(",", columns));
+
+                ExecuteNonQuery(command);
+            }
+            catch (Exception e)
+            {
+                Logger.Exception("Unable to add index", e);
+            }
+        }
+
         /// <summary>
         /// Append a primary key to a table.
         /// </summary>
@@ -562,7 +584,8 @@ namespace Migrator.Providers
                     Logger.Warn(ex.Message);
                     throw;
                 }
-            }
		}
+            }
+        }
 
         private IDbCommand BuildCommand(string sql)
         {
@@ -595,7 +618,8 @@ namespace Migrator.Providers
                     Logger.Warn("query failed: {0}", cmd.CommandText);
                     throw;
                 }
-            }
		}
+            }
+        }
 
         public object ExecuteScalar(string sql)
         {
@@ -611,7 +635,8 @@ namespace Migrator.Providers
                     Logger.Warn("Query failed: {0}", cmd.CommandText);
                     throw;
                 }
-            }
		}
+            }
+        }
 
         public IDataReader Select(string what, string from)
         {
@@ -658,7 +683,7 @@ namespace Migrator.Providers
 
         public virtual int Delete(string table)
         {
-            return Delete(table, (string[])null, (string[]) null);
+            return Delete(table, (string[])null, (string[])null);
         }
 
         public virtual int Delete(string table, string[] columns, string[] values)
@@ -743,12 +768,14 @@ namespace Migrator.Providers
         {
             get
             {
-				if(_appliedMigrations == null)
+                if (_appliedMigrations == null)
                 {
                     _appliedMigrations = new List<long>();
                     CreateSchemaInfoTable();
-					using(IDataReader reader = Select("version","SchemaInfo")){
-						while(reader.Read()){
+                    using (IDataReader reader = Select("version", "SchemaInfo"))
+                    {
+                        while (reader.Read())
+                        {
                             _appliedMigrations.Add(Convert.ToInt64(reader.GetValue(0)));
                         }
                     }
@@ -764,7 +791,7 @@ namespace Migrator.Providers
         public void MigrationApplied(long version)
         {
             CreateSchemaInfoTable();
-			Insert("SchemaInfo",new string[]{"version"},new string[]{version.ToString()});
+            Insert("SchemaInfo", new string[] { "version" }, new string[] { version.ToString() });
             _appliedMigrations.Add(version);
         }
 
@@ -816,13 +843,14 @@ namespace Migrator.Providers
 
         public virtual string QuoteValues(string values)
         {
-            return QuoteValues(new string[] {values})[0];
+            return QuoteValues(new string[] { values })[0];
         }
 
         public virtual string[] QuoteValues(string[] values)
         {
             return Array.ConvertAll<string, string>(values,
-				      delegate(string val) {
+                      delegate(string val)
+                      {
                           if (null == val)
                               return "null";
                           else