/**
* Is the specified table in the specified schema renamed?
*
* @param object $schema
* @param object $table
* return boolean
*/
public static function is_renamed_table($schema, $table)
{
if (!is_object($schema)) {
throw new exception("schema is not an object");
}
if (!is_object($table)) {
throw new exception("table is not an object");
}
// command line switch sanity
if (dbsteward::$ignore_oldnames) {
throw new exception("dbsteward::ignore_oldname option is on, is_renamed_table() should not be getting called");
}
// if new_table['oldTableName'] is not defined, abort checks
if (!isset($table['oldTableName'])) {
return false;
}
// definition sanity checks
if (format_schema::contains_table($schema, $table['oldTableName'])) {
throw new Exception("oldTableName panic - new_schema " . $schema['name'] . " still contains table named " . $table['oldTableName']);
}
$old_schema = sql99_table::get_old_table_schema($schema, $table);
if (!is_null($old_schema)) {
if (!format_schema::contains_table($old_schema, $table['oldTableName'])) {
throw new Exception("oldTableName panic - old_schema " . $old_schema['name'] . " does not contain table named " . $table['oldTableName']);
}
}
// it is a new old named table rename if:
// table['oldTableName'] exists in old schema
// table['oldTableName'] does not exist in new schema
if (format_schema::contains_table($old_schema, $table['oldTableName']) && !format_schema::contains_table($schema, $table['oldTableName'])) {
dbsteward::info("NOTICE: " . $table['name'] . " used to be called " . $table['oldTableName']);
return true;
}
return false;
}
/**
* 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");
}
}
}
}
