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;
}
}
});
}
/**
* Get patch for columns.
*
* @since 2.0
*
* @param array $params
*
* @return array
*/
protected function patch(array $params)
{
$grammar = $this->query->getGrammar();
$columns = array();
foreach ([$this->model->getLftName(), $this->model->getRgtName()] as $col) {
$columns[$col] = $this->columnPatch($grammar->wrap($col), $params);
}
return $columns;
}
public static function boot()
{
parent::boot();
Category::deleting(function ($category) {
if (count($category->children) || count($category->products)) {
Session::flash('error', 'Сначало удалите подкатегории и товары!');
return false;
}
});
}
/**
* Get whether the node is an ancestor of other node, including immediate parent.
*
* @param Node $other
*
* @return bool
*/
public function isAncestorOf(Node $other)
{
return $other->isDescendantOf($this);
}
/**
* Fixes nodes tree
*
* @return Redirect
*/
public function fixNodesTree()
{
\Kalnoy\Nestedset\Node::fixTree();
$this->notify('maintenance.fixed_nodes_tree');
return redirect()->back();
}
