php - Laravel:我所有模型的依赖注入(inject)和静态自定义方法

Question

我创建了一个帮助类来搜索和过滤我的 laravel 模型(方法使用 tntsearch 和自定义范围)，目前它工作得很好，但我想对其进行一些改进，遗憾的是它很难实现我想要的:

我要改进的地方:

1)能够在我的所有 laravel 模型上静态调用搜索方法，如下所示:

Model::search();

目前我必须实例化类并调用如下方法:

 $results = $searchHelper->search($request, $filters);

2)现在我还必须将两个参数传递给构造函数，在我的类中，我尝试在构造魔术方法中进行依赖注入(inject)，但我仍然必须将请求和过滤器作为参数传递......

它在我的 Controller 中的外观:

public function search(Request $request, QueryFilters $filters)
    {
        $search = new Search($request, $filters);


        $posts = $search->search('Post', ['postcategory', 'author', 'favorites']);

        return response()->json([
            'message' => 'Encontramos unas coincidencias',
            'posts' => $posts,
        ], 200);   
    }

我的助手类:

<?php
namespace App\Helpers;


use Illuminate\Http\Request;
use App\Filters\QueryFilters;
use App\Filters\Filterable;


class Search
{

    public $request;
    public $filters;

    public function __construct(Request $request, QueryFilters $filters)
    {
        $this->request = $request;
        $this->filters = $filters;
    }

    public function search( $model, $relationships = [] )
    {
        $model = app("App\Models\".$model."); 

        $results = $model::search($this->request->input('search'), '')->get(); 

        if(!$results->isEmpty())
        {
            $ids = implode(',', $results->pluck('id')->toArray());
            $filters->merge(['whereIn' => $ids]);    
        }

        $results = $model::filter($this->filters)->with($relationships)->paginate(10);

        return $results; 
    }


}

我想调用这样的方法，不向构造函数传递参数(DI应该处理它)，静态调用方法

Appointments::search();

Answer 1

您可以定义一个 Searchable像这样的特征(而不是你的 Search 类):

trait Searchable
{
    public static function search($relationships = [])
    {
        //You may use the `resolve` method to resolve a class instance.
        $request = resolve(\Illuminate\Http\Request::class);
        //or $request = request();
        $filters = resolve(\App\Filters\QueryFilters::class);

        //rename the other `search` function on your model to `doSearch` to resolve conflicts
        $results = self::doSearch($request->input('search'), '')->get();
        //or using request helper function
        //$results = self::doSearch(request('search'), '')->get(); 

        if(!$results->isEmpty())
        {
            $ids = implode(',', $results->pluck('id')->toArray());
            $filters->merge(['whereIn' => $ids]);    
        }

        $results = self::filter($filters)->with($relationships)->paginate(10);

        return $results; 
    }

}

并实现此 Searchable您的 Eloquent 模型的契约(Contract):

class Appointment extends Model
{
    use Searchable;

    //...
}

现在您可以调用:

Appointment::search();