/**
* Compares two keys, and returns any errors of non matches
*
* @param Constraint $constraint
* @param string $prefix
*
* @return string[]
* @throws \Exception
*/
public function equals(Constraint $constraint, $prefix)
{
$prefix .= ': Constraint (' . $this->getName() . '):';
$errors = [];
if ($constraint->getName() !== $this->getName()) {
throw new \Exception('Comparing Incomparable Constraints');
}
if ($constraint->getRemoteTable() !== $this->getRemoteTable()) {
$errors[] = $prefix . 'Remote Table Does Not Match:' . "\n" . $constraint->getRemoteTable() . "\n" . $this->getRemoteTable();
}
$diff = array_diff($constraint->getLocalColumns(), $this->getLocalColumns());
if (!empty($diff)) {
$errors[] = $prefix . 'Extra Local Columns: ' . "\n" . implode("\n", $diff);
}
$diff = array_diff($this->getLocalColumns(), $constraint->getLocalColumns());
if (!empty($diff)) {
$errors[] = $prefix . 'Missing Local Columns: ' . "\n" . implode("\n", $diff);
}
$diff = array_diff($constraint->getRemoteColumns(), $this->getRemoteColumns());
if (!empty($diff)) {
$errors[] = $prefix . 'Extra Remote Columns: ' . "\n" . implode("\n", $diff);
}
$diff = array_diff($this->getRemoteColumns(), $constraint->getRemoteColumns());
if (!empty($diff)) {
$errors[] = $prefix . 'Missing Remote Columns: ' . "\n" . implode("\n", $diff);
}
if ($constraint->getUpdateAction() !== $this->getUpdateAction()) {
$errors[] = $prefix . 'Update Action Does Not Match:' . "\n" . $constraint->getUpdateAction() . "\n" . $this->getUpdateAction();
}
if ($constraint->getDeleteAction() !== $this->getDeleteAction()) {
$errors[] = $prefix . 'Delete Action Does Not Match:' . "\n" . $constraint->getDeleteAction() . "\n" . $this->getDeleteAction();
}
return $errors;
}
