/**
* 设置文章分类
*
* @param intger|array $categories
*
* @return boolean
*/
public function setCategories($categories)
{
is_array($categories) || ($categories = array($categories));
//如果不同才存
if (Input::get('old_category', '') != join(',', $categories)) {
$this->termRelation()->delete();
$termRelMultiData = array_map(function ($categoryId) {
return array('object_id' => $this->id, 'category_id' => $categoryId);
}, $categories);
//一次性写入多条
//请参考：http://www.golaravel.com/docs/4.1/queries/#inserts
return false !== TermRelation::insert($termRelMultiData);
}
return true;
}
