/**
* 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 $old_function) {
if (!pgsql8_schema::contains_function($new_schema, pgsql8_function::get_declaration($new_schema, $old_function, FALSE))) {
$ofs3->write(pgsql8_function::get_drop_sql($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, $new_function['name'], pgsql8_function::get_declaration($new_schema, $new_function));
}
if ($old_function == null || !pgsql8_function::equals($new_schema, $new_function, $old_function, pgsql8_diff::$ignore_function_whitespace)) {
$ofs1->write(pgsql8_function::get_creation_sql($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");
$ofs1->write(pgsql8_function::get_creation_sql($new_schema, $new_function) . "\n");
} else {
if (pgsql8_schema::contains_type($new_schema, $new_function['returns']) && pgsql8_schema::contains_type($old_schema, $new_function['returns']) && !pgsql8_type::equals(dbx::get_type($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");
$ofs1->write(pgsql8_function::get_creation_sql($new_schema, $new_function) . "\n");
}
}
}
}
}
