- class MysqlAdapter
- 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
-
- def change_column(table_name, column_name, type, options = {})
- unless options_include_default?(options)
- options[:default] = select_one("SHOW COLUMNS FROM #{table_name} LIKE '#{column_name}'")["Default"]
-
- unless type == :string or type == :text
- options.delete(:default) if options[:default] = "";
- end
- end
-
- change_column_sql = "ALTER TABLE #{table_name} CHANGE #{column_name} #{column_name} #{type_to_sql(type, options[:limit], options[:precision], options[:scale])}"
- add_column_options!(change_column_sql, options)
- execute(change_column_sql)
- end
-
- def myisam_table
- return { :id => false, :force => true, :options => "ENGINE=MyIsam" }
- end
-
- 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
-