public static function boot()
{
parent::boot();
self::deleting(function ($category) {
$categories_id = $category->descendants()->lists('id');
$categories_id[] = $category->getKey();
$products = Product::whereHas('categories', function ($q) use($categories_id) {
$q->whereIn('categories.id', $categories_id);
})->get();
if ($category->getDescendantCount() > 0) {
$html = "This category has children, you can't delete this category until you removed all the children";
\Session::flash('errorMsg', $html);
return false;
} else {
if ($products->count() > 0) {
$html = "Cannot delete this category due to still has related product(s).<br>\n";
$html .= "<ul>\n";
foreach ($products as $product) {
$html .= " <li>{$product->name}</li>\n";
}
$html .= "</ul>\n";
\Session::flash('errorMsg', $html);
return false;
}
}
});
}
