php - Laravel 5.2 - 带数组的过滤器

Question

我正在做一个搜索过滤器，我有 3 个输入“市政”、“类别”、“关键字”，如果输入不为空，我正在尝试将值插入数组。像这样:

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();
}

但它过滤得不好，dd($filter) 返回如下:

可能数组结构不对，我也试过这样: laravel 5.2 search query但它不起作用。没有 dd($filter) 我有这个错误:

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))

感谢您的帮助!

Answer 1

您错误地使用了 where 子句。请参阅以下文档:

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

模型中 where 子句的选项应该作为链式方法中的参数(不是数组值)发送，如下所示:

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);
}

请注意，您可以将查询作为数据库表(而非模型)的数组发送，如下所示:

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