帶有Eloquent ORM的單個表列的多個別名

Question

是否可以在單個表列中有多個別名？如果我這樣做在MySQL中我得到的結果我想：

SELECT name, name AS label, name AS value FROM `tags` WHERE 1 

但是，如果我嘗試做：

$query->select('name, name AS label, name AS value'); 

..它告訴我SQLSTATE[42S22]: Column not found: 1054 Unknown column 'name,' in 'field list' (SQL: select名，as AS from標籤where標籤. deleted_at is null group by名order by名asc)

如果我嘗試做

$query->select('name AS name, name AS label, name AS value'); 

..它不會拋出一個錯誤，而只會給我一個別名（名稱）。我如何使用雄辯的ORM來實現這一點？由於

Answer 1

試試這個：

$query->select(DB::raw('name AS name, name AS label, name AS value'));

Link of Laravel Doc

Answer 2

當您嘗試選擇laravel做這樣的：

public function select($columns = array('*')) 
{ 
    $this->columns = is_array($columns) ? $columns : func_get_args(); 

    return $this; 
} 

而當你把這個字符串，laravel認爲你通過幾個ARGS ，所以你可以這樣做：

$query->select(['name AS name', 'name AS label', 'name AS value']); 

或者

$query->selectRaw('name AS name, name AS label, name AS value'): 

或者

$query->select(DB::raw('name AS name, name AS label, name AS value')); 

還是喜歡說@Jarek Tkaczyk

$query->select('name as name', 'name as label', 'name as value');