feat: Implement nested product category display in admin datatable with expandable rows.

app/Http/Controllers/admin/product/ProductCategoryController.php

@@ -91,14 +91,17 @@ class ProductCategoryController extends Controller
     public function datatable(Request $request)
     {
         $query = $this->productCategoryRepository->filter(
-            $request->all(),
-            [],
+            array_merge($request->all(), ['parent_id' => null]),
+            ['children'],
             [],
             ['*'],
             true
         );
 
         return DataTables::eloquent($query)
+            ->addColumn('details_control', function ($d) {
+                return view('administrator.pages.product.categories.datatable.details_control', ['row' => $d])->render();
+            })
             ->addColumn(
                 'action',
                 function ($d) use ($request) {
@@ -120,7 +123,7 @@ class ProductCategoryController extends Controller
                     return '<div class="form-check d-flex align-items-center justify-content-center"><input class="form-check-input dt-checkbox" type="checkbox" value="' . $d->id . '"></div>';
                 }
             )
-            ->rawColumns(['action', 'is_active', 'checkbox'])
+            ->rawColumns(['details_control', 'action', 'is_active', 'checkbox'])
             ->make(true);
     }
 }

app/Models/ProductCategories.php

@@ -27,7 +27,7 @@ class ProductCategories extends Model
 
     public function children()
     {
-        return $this->hasMany(ProductCategories::class, 'parent_id');
+        return $this->hasMany(ProductCategories::class, 'parent_id')->with('children');
     }
 
     public function products()

app/Repositories/Admin/ProductCategory/ProductCategoryRepository.php

@@ -44,9 +44,9 @@ class ProductCategoryRepository extends BaseRepository implements ProductCategor
             $query->onlyTrashed();
         }
 
-        // if (!empty($data['vcenter_id'])) {
-        //     $query->where('vcenter_id', $data['vcenter_id']);
-        // }
+        if (array_key_exists('parent_id', $data)) {
+            $query->where('parent_id', $data['parent_id']);
+        }
 
         if (!empty($withCount)) {
             $query->withCount($withCount);