refactor the query filters using pipeline design pattern

developermithu · developermithu · commit ab4b90e2dfd5 · 2025-03-21T19:59:37.000+06:00
diff --git a/app/Filters/Posts/SearchFilter.php b/app/Filters/Posts/SearchFilter.php
@@ -0,0 +1,23 @@
+<?php
+
+namespace App\Filters\Posts;
+
+use Closure;
+use Illuminate\Database\Eloquent\Builder;
+
+class SearchFilter
+{
+    public function handle(Builder $query, Closure $next)
+    {
+        $searchParams = trim(request('search'));
+
+        if ($searchParams) {
+            $query->whereAny(['title', 'slug', 'content'], 'like', "%$searchParams%")
+                ->orWhereHas('category', function ($query) use ($searchParams) {
+                    $query->whereAny(['name', 'slug'], 'like', "%$searchParams%");
+                });
+        }
+
+        return $next($query);
+    }
+}
diff --git a/app/Filters/Posts/StatusFilter.php b/app/Filters/Posts/StatusFilter.php
@@ -0,0 +1,22 @@
+<?php
+
+namespace App\Filters\Posts;
+
+use App\Enums\PostStatus;
+use Closure;
+use Illuminate\Database\Eloquent\Builder;
+
+class StatusFilter
+{
+    public function handle(Builder $query, Closure $next)
+    {
+        $status = request('status');
+        $validStatuses = [PostStatus::PUBLISHED->value, PostStatus::DRAFT->value];
+
+        if (in_array($status, $validStatuses)) {
+            $query->where('status', $status);
+        }
+
+        return $next($query);
+    }
+}
diff --git a/app/Filters/Posts/TrashFilter.php b/app/Filters/Posts/TrashFilter.php
@@ -0,0 +1,22 @@
+<?php
+
+namespace App\Filters\Posts;
+
+use Closure;
+use Illuminate\Database\Eloquent\Builder;
+
+class TrashFilter
+{
+    public function handle(Builder $query, Closure $next)
+    {
+        $filter = request('filter', 'all');
+
+        if ($filter === 'trash') {
+            $query->onlyTrashed();
+        } elseif ($filter === 'all') {
+            $query->withoutTrashed();
+        }
+
+        return $next($query);
+    }
+}
diff --git a/app/Http/Controllers/Api/PostController.php b/app/Http/Controllers/Api/PostController.php
@@ -3,40 +3,33 @@
 namespace App\Http\Controllers\Api;
 
 use App\Enums\PostStatus;
+use App\Filters\Posts\SearchFilter;
+use App\Filters\Posts\StatusFilter;
+use App\Filters\Posts\TrashFilter;
 use App\Http\Controllers\Controller;
 use App\Http\Requests\Post\StorePostRequest;
 use App\Http\Requests\Post\UpdatePostRequest;
 use App\Http\Resources\PostResource;
 use App\Models\Post;
 use Illuminate\Http\JsonResponse;
 use Illuminate\Http\Resources\Json\AnonymousResourceCollection;
+use Illuminate\Pipeline\Pipeline;
 use Symfony\Component\HttpKernel\Exception\NotFoundHttpException;
 
 class PostController extends Controller
 {
     public function index(): AnonymousResourceCollection
     {
-        $filter = request('filter', 'all');
-        $status = request('status');
-        $search = trim(request('search'));
-        $validStatuses = [PostStatus::PUBLISHED->value, PostStatus::DRAFT->value];
-
-        $posts = Post::with(['author', 'category'])
-            ->when($filter === 'trash', function ($query) {
-                $query->onlyTrashed();
-            })
-            ->when($filter === 'all', function ($query) {
-                $query->withoutTrashed();
-            })
-            ->when(in_array($status, $validStatuses), function ($query) use ($status) {
-                $query->where('status', $status);
-            })
-            ->when($search, function ($query) use ($search) {
-                $query->whereAny(['title', 'slug', 'content'], 'like', "%$search%")
-                    ->orWhereHas('category', function ($query) use ($search) {
-                        $query->whereAny(['name', 'slug'], 'like', "%$search%");
-                    });
-            })
+        $posts = Post::query()->with(['author', 'category']);
+
+        $posts = app(Pipeline::class)
+            ->send($posts)
+            ->through([
+                TrashFilter::class,
+                StatusFilter::class,
+                SearchFilter::class,
+            ])
+            ->thenReturn()
             ->latest()
             ->paginate(6);
 
