Add some extra indexes to the changesets table.

[rails.git] / lib / migrate.rb

diff --git a/lib/migrate.rb b/lib/migrate.rb
index 782436af3ff4926e7c6d43e0f1ddac0affe416b2..05b3c90f24da86a9cf541ec9cf60c7e90c9c7520 100644 (file)
--- a/lib/migrate.rb
+++ b/lib/migrate.rb
@@ -38,15 +38,22 @@ module ActiveRecord
     end
 
     class MysqlAdapter
-      alias_method :old_native_database_types, :native_database_types
+      if MysqlAdapter.public_instance_methods(false).include?('native_database_types')
+        alias_method :old_native_database_types, :native_database_types
+      end
 
       def native_database_types
         types = old_native_database_types
         types[:bigint] = { :name => "bigint", :limit => 20 }
         types[:double] = { :name => "double" }
+        types[:integer_pk] = { :name => "integer DEFAULT NULL auto_increment PRIMARY KEY" }
         types[:bigint_pk] = { :name => "bigint(20) DEFAULT NULL auto_increment PRIMARY KEY" }
         types[:bigint_pk_64] = { :name => "bigint(64) DEFAULT NULL auto_increment PRIMARY KEY" }
         types[:bigint_auto_64] = { :name => "bigint(64) DEFAULT NULL auto_increment" }
+        types[:bigint_auto_11] = { :name => "bigint(11) DEFAULT NULL auto_increment" }
+        types[:bigint_auto_20] = { :name => "bigint(20) DEFAULT NULL auto_increment" }
+        types[:four_byte_unsigned] = { :name=> "integer unsigned" }
+        types[:inet] = { :name=> "integer unsigned" }
         types
       end
 
@@ -71,6 +78,101 @@ module ActiveRecord
       def innodb_table
         return { :id => false, :force => true, :options => "ENGINE=InnoDB" }
       end
+
+      def innodb_option
+        return "ENGINE=InnoDB"
+      end
+
+      def change_engine (table_name, engine)
+        execute "ALTER TABLE #{table_name} ENGINE = #{engine}"
+      end
+
+      def add_fulltext_index (table_name, column)
+        execute "CREATE FULLTEXT INDEX `#{table_name}_#{column}_idx` ON `#{table_name}` (`#{column}`)"
+      end
+
+      def alter_column_nwr_enum (table_name, column)
+        execute "alter table #{table_name} change column #{column} #{column} enum('Node','Way','Relation');"
+      end
+
+      def alter_primary_key(table_name, new_columns)
+        execute("alter table #{table_name} drop primary key, add primary key (#{new_columns.join(',')})")
+      end
+
+      def interval_constant(interval)
+        "'#{interval}'"
+      end
+    end
+
+    class PostgreSQLAdapter
+      if PostgreSQLAdapter.public_instance_methods(false).include?('native_database_types')
+        alias_method :old_native_database_types, :native_database_types
+      end
+
+      def native_database_types
+        types = old_native_database_types
+        types[:double] = { :name => "double precision" }
+        types[:integer_pk] = { :name => "serial PRIMARY KEY" }
+        types[:bigint_pk] = { :name => "bigserial PRIMARY KEY" }
+        types[:bigint_pk_64] = { :name => "bigserial PRIMARY KEY" }
+        types[:bigint_auto_64] = { :name => "bigint" } #fixme: need autoincrement?
+        types[:bigint_auto_11] = { :name => "bigint" } #fixme: need autoincrement?
+        types[:bigint_auto_20] = { :name => "bigint" } #fixme: need autoincrement?
+        types[:four_byte_unsigned] = { :name => "bigint" } # meh
+        types[:inet] = { :name=> "inet" }
+        types
+      end
+
+      def myisam_table
+        return { :id => false, :force => true, :options => ""}
+      end
+
+      def innodb_table
+        return { :id => false, :force => true, :options => ""}
+      end
+
+      def innodb_option
+        return ""
+      end
+ 
+      def change_engine (table_name, engine)
+      end
+
+      def add_fulltext_index (table_name, column)
+        execute "CREATE INDEX #{table_name}_#{column}_idx on #{table_name} (#{column})"
+      end
+
+      def alter_column_nwr_enum (table_name, column)
+        response = select_one("select count(*) as count from pg_type where typname = 'nwr_enum'")
+        if response['count'] == "0" #yep, as a string
+          execute "create type nwr_enum as ENUM ('Node', 'Way', 'Relation')"
+        end
+        execute        "alter table #{table_name} drop #{column}"
+        execute "alter table #{table_name} add #{column} nwr_enum"
+      end
+
+      def alter_primary_key(table_name, new_columns)
+        execute "alter table #{table_name} drop constraint #{table_name}_pkey; alter table #{table_name} add primary key (#{new_columns.join(',')})"
+      end
+
+      def interval_constant(interval)
+        "'#{interval}'::interval"
+      end
+
+      def add_index(table_name, column_name, options = {})
+        column_names = Array(column_name)
+        index_name   = index_name(table_name, :column => column_names)
+
+        if Hash === options # legacy support, since this param was a string
+          index_type = options[:unique] ? "UNIQUE" : ""
+          index_name = options[:name] || index_name
+          index_method = options[:method] || "BTREE"
+        else
+          index_type = options
+        end
+        quoted_column_names = column_names.map { |e| quote_column_name(e) }.join(", ")
+        execute "CREATE #{index_type} INDEX #{quote_column_name(index_name)} ON #{quote_table_name(table_name)} USING #{index_method} (#{quoted_column_names})"
+      end
     end
   end
 end