public function drop(MidataView $view)
{
$name = $view->name();
return "DROP VIEW IF EXISTS `{$name}`;";
}
private function diffView($view)
{
$diff = array();
$status = self::NO_CHANGE;
$sourceView = $this->adapter('source')->view($view);
$targetView = $this->adapter('target')->view($view);
foreach (View::allAttributes() as $attribute) {
$sourceAttribute = $sourceView->{$attribute}();
$targetAttribute = $targetView->{$attribute}();
if ($sourceAttribute == Column::NOT_SUPPORTED || $targetAttribute == Column::NOT_SUPPORTED) {
continue;
}
if ($sourceAttribute !== $targetAttribute) {
$status = self::CHANGED;
$diff[$attribute] = array('source' => $sourceAttribute, 'target' => $targetAttribute);
}
}
return array('status' => $status, 'diff' => $diff);
}