Polymorphic RelationShip ManyToMany between Category & Product: Used these method to query in DB attach,detach or ->categories()->sync([1,4,3]);

Author: samayun

app/Http/Controllers/Admin/AttributeController.php

@@ -0,0 +1,109 @@
+<?php
+
+namespace App\Http\Controllers\Admin;
+
+use App\Http\Controllers\Controller;
+use App\Http\Resources\AttributeResource;
+use Illuminate\Http\Request;
+use App\Models\Admin;
+use App\Models\Attribute;
+use App\Traits\UploadAble;
+
+use Illuminate\Support\Facades\Gate;
+use Illuminate\Support\Facades\Auth;
+use DB;
+
+class AttributeController extends Controller
+{
+    use UploadAble;
+
+    public function __construct()
+    {
+        $this->authorizeResource(Attribute::class, 'attribute');
+    }
+    public function index(Request $request)
+    {
+        return AttributeResource::collection(
+            Attribute::whereNull('parent_id')->with('values')->latest()->get()
+        );
+    }
+    public function values(Request $request)
+    {
+        return AttributeResource::collection(
+             Attribute::whereNotNull('parent_id')->with('value')->latest()->get()
+        );
+    }
+
+    /**
+     * Store a newly created resource in storage.
+     *
+     * @param  \Illuminate\Http\Request  $request
+     * @return \Illuminate\Http\Response
+     */
+    public function store(Request $request)
+    {
+        $this->validate($request , [
+            'name' => 'bail|required|min:3',
+            'slug' => $request->slug ? "required|alpha_dash|unique:attributes,slug" : "",
+            'parent_id' => $request->parent_id ? 'required' : ''
+        ]);
+
+        $data = Attribute::create($request->all()); // actually subattribute created
+        return new AttributeResource($data);
+    }
+    public function multiDelete(Request $request)
+    {
+        $this->authorize('multi_delete');
+        try {
+
+            foreach ($request->all() as $attribute) {
+                DB::beginTransaction();
+                Attribute::find($attribute['id'])->delete();
+                DB::commit();
+            }
+            return response()->json(['message' => "SUCCESS"], 200);
+        } catch (\Throwable $th) {
+            DB::rollback();
+        }
+    }
+    /**
+     * Display the specified resource.
+     *
+     * @param  int  $id
+     * @return \Illuminate\Http\Response
+     */
+    public function show(Attribute $attribute)
+    {
+        return new AttributeResource($attribute);
+    }
+
+    /**
+     * Update the specified resource in storage.
+     *
+     * @param  \Illuminate\Http\Request  $request
+     * @param  int  $id
+     * @return \Illuminate\Http\Response
+     */
+    public function update(Request $request, Attribute $attribute)
+    {
+        $this->validate($request , [
+            'name' => 'required',
+            'slug' => 'required|unique:attributes,slug,'.$request->id,
+            'parent_id' => $request->parent_id ? 'required' : ''
+        ]);
+        // $attribute = Attribute::where('id',$request->id);
+        return $attribute->update($request->except('id'));
+        // return new AttributeResource($request->all());
+    }
+
+    /**
+     * Remove the specified resource from storage.
+     *
+     * @param  int  $id
+     * @return \Illuminate\Http\Response
+     */
+    public function destroy(Request $request , Attribute $attribute)
+    {
+        return $attribute->delete();
+    }
+}

app/Http/Controllers/Admin/CategoryController.php

@@ -11,6 +11,7 @@
 use Illuminate\Support\Facades\Gate;
 use Illuminate\Support\Facades\Auth;
 use DB;
+use Illuminate\Support\Facades\Storage;
 
 use function PHPUnit\Framework\isNull;
 
@@ -27,15 +28,37 @@ public function __construct()
      *
      * @return \Illuminate\Http\Response
      */
-    public function index(Request $request)
+    public function all_categories(Request $request)
     {
-        // these code must be efactored - we wil need this again and again
-        return Category::where('parent_id',1)->with('subcategories')->where('id','!=',1)->latest()->get();
+        if($request->has('with') && $request->with == 'subcategories'){
+            return Category::with('subcategories')->latest()->get();
+        }
+        if($request->has('with') && $request->with == 'products'){
+            return Category::with('products')->latest()->get();
+        }
+        if($request->has('with') && $request->with == 'subcategories' || $request->with == 'products'   ) {
+            return Category::with('subcategories')->with('products')->latest()->get();
+        }
+        return Category::latest()->get()->map(function($cat)
+        {
+            return [
+                'id' => $cat->id,
+                'name' => $cat->name,
+                'slug' => $cat->slug,
+                'icon' => $cat->icon ? url($cat->icon) :  Storage::url('categories/default.png')
+            ];
+        });
     }
     public function subcategories(Request $request)
     {
         // these code must be efactored - we wil need this again and again
-        return Category::where('parent_id','!=',1)->with('category')->filter($request);
+        return Category::where('parent_id','!=',1)->with('category')->with('products')->filter($request);
+    }
+
+    public function index()
+    {
+        // these code must be efactored - we wil need this again and again
+        return Category::where('parent_id',1)->with('subcategories')->with('products')->where('id','!=',1)->latest()->get();
     }
 
     /**
@@ -99,7 +122,7 @@ public function multiDelete(Request $request)
      */
     public function show(Category $category)
     {
-        return $category;
+        return $category->products;
     }
 
     /**