/**
* Does the specified constraint depend on a table
* that has been renamed in the specified database definition?
*
* @param object $db_doc
* @param object $constraint
* @return boolean
* @throws exception
*/
public static function constraint_depends_on_renamed_table($db_doc, $constraint)
{
if (dbsteward::$ignore_oldnames) {
// don't check if ignore_oldnames is on
return FALSE;
}
if (strpos($constraint['definition'], 'REFERENCES') !== FALSE) {
//echo $constraint['schema_name'] . "." . $constraint['table_name'] . " " . $constraint['name'] . " definition = " . $constraint['definition'] . "\n";
if (preg_match(static::PATTERN_CONSTRAINT_REFERENCES_TABLE, $constraint['definition'], $matches) > 0) {
$references_schema_name = $matches[1];
$references_table_name = $matches[2];
} else {
throw new exception("Failed to parse REFERENCES definition for renamed table dependencies");
}
$references_schema = dbx::get_schema($db_doc, $references_schema_name);
if (!$references_schema) {
throw new exception("constraint references schema '" . $references_schema_name . "' not found in specified db_doc, check caller");
}
$references_table = dbx::get_table($references_schema, $references_table_name);
if (!$references_table) {
throw new exception("constraint references table '" . $references_table_name . "' not found in specified db_doc, schema " . $references_schema_name . ", check caller");
}
if (sql99_diff_tables::is_renamed_table($references_schema, $references_table)) {
dbsteward::info("NOTICE: constraint " . $constraint['name'] . " for " . $constraint['schema_name'] . "." . $constraint['table_name'] . " references a renamed table -- " . $constraint['definition']);
return TRUE;
}
}
return FALSE;
}
public static function is_renamed_table($schema, $table)
{
// a table is also considered renamed if it was moved
return parent::is_renamed_table($schema, $table) || self::is_moved_table($schema, $table);
}
/**
* Sanity check table renaming pointers if they have been specified
*
* @param object $old_schema
* @param object $old_table
* @param object $new_schema
* @param object $new_table
* @throws exception
*/
public static function renamed_table_check_pointer(&$old_schema, &$old_table, $new_schema, $new_table)
{
if (!dbsteward::$ignore_oldnames) {
if ($new_schema && $new_table && sql99_diff_tables::is_renamed_table($new_schema, $new_table)) {
if (isset($new_table['oldSchemaName'])) {
if (!($old_schema = sql99_table::get_old_table_schema($new_schema, $new_table))) {
throw new exception("Sanity failure: " . $new_table['name'] . " has oldSchemaName attribute, but old_schema not found");
}
} else {
if (!$old_schema) {
throw new exception("Sanity failure: " . $new_table['name'] . " has oldTableName attribute, but passed old_schema is not defined");
}
}
$old_table = sql99_table::get_old_table($new_schema, $new_table);
if (!$old_table) {
throw new exception("Sanity failure: " . $new_table['name'] . " has oldTableName attribute, but table point not found");
}
}
}
}