Merge branch 'master' into openstreetbugs

[rails.git] / lib / migrate.rb

diff --git a/lib/migrate.rb b/lib/migrate.rb
index 26e95a496264142d2414e63a199c300942142154..8e6629f0d2639d25e40590cfcbc7cd5ce7233a21 100644 (file)
--- a/lib/migrate.rb
+++ b/lib/migrate.rb
@@ -21,6 +21,11 @@ module ActiveRecord
          "REFERENCES #{reftbl} (#{quote_column_names(refcol || column_name)})"
       end
 
+      def remove_foreign_key(table_name, column_name, reftbl, refcol = nil)
+        execute "ALTER TABLE #{table_name} DROP " +
+          "CONSTRAINT #{table_name}_#{column_name[0]}_fkey"
+      end
+
       alias_method :old_options_include_default?, :options_include_default?
 
       def options_include_default?(options)
@@ -38,12 +43,27 @@ 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" }
+
+        enumerations.each do |e,v|
+          types[e.to_sym]= { :name => "enum('#{v.join '\',\''}')" }
+        end
+
         types
       end
 
@@ -68,6 +88,132 @@ 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 enumerations
+        @enumerations ||= Hash.new
+      end
+
+      def create_enumeration(enumeration_name, values)
+        enumerations[enumeration_name] = values
+      end
+
+      def drop_enumeration(enumeration_name)
+        enumerations.delete(enumeration_name)
+      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" }
+
+        enumerations.each_key do |e|
+          types[e.to_sym]= { :name => e }
+        end
+
+        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 enumerations
+        @enumerations ||= Hash.new
+      end
+
+      def create_enumeration(enumeration_name, values)
+        enumerations[enumeration_name] = values
+        execute "CREATE TYPE #{enumeration_name} AS ENUM ('#{values.join '\',\''}')"
+      end
+
+      def drop_enumeration(enumeration_name)
+        execute "DROP TYPE #{enumeration_name}"
+        enumerations.delete(enumeration_name)
+      end
+
+      def rename_enumeration(old_name, new_name)
+        execute "ALTER TYPE #{quote_table_name(old_name)} RENAME TO #{quote_table_name(new_name)}"
+      end
+
+      def alter_primary_key(table_name, new_columns)
+        execute "ALTER TABLE #{table_name} DROP CONSTRAINT #{table_name}_pkey"
+        execute "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
+
+      def rename_index(table_name, old_name, new_name)
+        execute "ALTER INDEX #{quote_table_name(old_name)} RENAME TO #{quote_table_name(new_name)}"
+      end
+
+      def rename_sequence(table_name, old_name, new_name)
+        execute "ALTER SEQUENCE #{quote_table_name(old_name)} RENAME TO #{quote_table_name(new_name)}"
+      end
     end
   end
 end