/** * Outputs DDL for differences in functions * * @param $ofs1 stage1 output pointer * @param $ofs3 stage3 output pointer * @param $old_schema original schema * @param $new_schema new schema */ public static function diff_functions($ofs1, $ofs3, $old_schema, $new_schema) { // drop functions that no longer exist in stage 3 if ($old_schema != null) { foreach (dbx::get_functions($old_schema) as $old_function) { if (!mysql5_schema::contains_function($new_schema, mysql5_function::get_declaration($new_schema, $old_function))) { $ofs3->write(mysql5_function::get_drop_sql($old_schema, $old_function) . "\n"); } } } // Add new functions and replace modified functions foreach (dbx::get_functions($new_schema) as $new_function) { $old_function = null; if ($old_schema != null) { $old_function = dbx::get_function($old_schema, $new_function['name'], mysql5_function::get_declaration($new_schema, $new_function)); } if ($old_function == null || !mysql5_function::equals($new_schema, $new_function, $old_function, mysql5_diff::$ignore_function_whitespace)) { $ofs1->write(mysql5_function::get_creation_sql($new_schema, $new_function) . "\n"); } else { if (isset($new_function['forceRedefine']) && strcasecmp($new_function['forceRedefine'], 'true') == 0) { $ofs1->write("-- DBSteward insists on function recreation: {$new_schema['name']}.{$new_function['name']} has forceRedefine set to true\n"); $ofs1->write(mysql5_function::get_creation_sql($new_schema, $new_function) . "\n"); } else { if (mysql5_schema::contains_type($new_schema, $new_function['returns']) && mysql5_schema::contains_type($old_schema, $new_function['returns']) && !mysql5_type::equals(dbx::get_type($old_schema, $new_function['returns']), dbx::get_type($new_schema, $new_function['returns']))) { $ofs1->write("-- Force function re-creation {$new_function['name']} for type: {$new_function['returns']}\n"); $ofs1->write(mysql5_function::get_creation_sql($new_schema, $new_function) . "\n"); } } } } }