Laravel 5.2 - 過濾器陣列

Question

我正在做一個搜索過濾器，我有3個輸入「市」，「類別」，「關鍵字」，我試着插入值數組如果輸入不是空的。像這樣：

public function search(Request $request) 
    { 


     $filter = array(["'visible', '=' , 1"],["'expire_date', '>', $current"]); 

     if(!empty($termn)){ 
       $filter[] =["'title', 'LIKE' , '%'.$termn.'%'"]; 
     } 
     if(!empty($request->input('category'))){ 
       $filter[] = ["'category_id', '=', $input_category"]; 
     } 
     if(!empty($request->input('municipality_id'))) { 
       $filter[] = ["'municipality_id', '=', $input_municipality"]; 
     } 

     dd($filter); 

     $posts = Post::where($filter)->get(); 
} 

但它不是過濾好，DD（$濾波器）返回這樣的：

也許陣列的結構是不好的，我也嘗試這樣的： laravel 5.2 search query 但它不工作。 無DD（$過濾器）我有此錯誤：

SQLSTATE[42000]: Syntax error or access violation: 1064 You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near '. is null and `'municipality_id', '=', 1` is null)' at line 1 (SQL: select * from `posts` where (`'visible', '=' , 1` is null and `'expire_date', '>', 2016-10-29 13:29:30` is null and `'category_id', '=', Scegli una categoria`. . . is null and 'municipality_id', '=', 1 is null))

謝謝您的幫助！

Answer 1

您正在使用的where子句錯誤。請參閱以下文檔：

• https://laravel.com/docs/5.3/queries#where-clauses
• https://laravel.com/docs/5.3/eloquent#global-scopes

選項，其中在模型條款應該作爲參數在鏈接方法被髮送（NOT數組值）像這樣：

public function search(Request $request) 
    { 
     $current = Carbon::now(); 
     $current = new Carbon(); 
     $termn = $request->input('keyword'); 
     $input_category = $request->input('category'); 
     $input_municipality = $request->input('municipality_id'); 


     $posts = Post::where('visible', 1)->where('expire_date', '>', $current); 

     if(!empty($termn)){ 
       $posts->where('title', 'LIKE' , '%'.$termn.'%'); 
     } 
     if(!empty($request->input('category'))){ 
       $posts->where('category_id', '=', $input_category); 
     } 
     if(!empty($request->input('municipality_id'))) { 
       $posts->where('municipality_id', '=', $input_municipality); 
     } 

     $post_results = $posts->get(); 
     dd($posts_results); 
} 

請注意，您可以發送查詢作爲數據庫表（不是模型）的數組，如下所示：

$users = DB::table('posts')->where([ 
    ['visible', '=', '1'], 
    ['expire_date', '>', $current], 
    // ... 
])->get(); 

Answer 2

可以在query builder實例鏈中的where()功能：

$query = Post::where('visible', 1)->where('expire_date', '>', $current); 

if(!empty($termn)){ 
     $query->where('title', 'LIKE', '%'.$termn.'%') 
} 
if(!empty($request->input('category'))){ 
     $query->where('category_id', $input_category) 
} 
if(!empty($request->input('municipality_id'))) { 
     $query->where('municipality_id', $input_municipality) 
} 

$posts = $query->get();