Merge pull request #568 from Laravel-Backpack/nested-crud-example

Add a nested crud example

Author: pxpm

app/Http/Controllers/Admin/PetShop/OwnerCrudController.php

@@ -49,6 +49,18 @@ protected function setupListOperation()
     {
         CRUD::column('name');
         CRUD::column('avatar.url')->type('image')->label('Avatar');
+
+        CRUD::button('view_pets')->stack('line')->view('crud::buttons.quick')->meta([
+            'access'  => true,
+            'label'   => 'View Pets',
+            'icon'    => 'la la-paw',
+            'wrapper' => [
+                'href' => function ($entry, $crud) {
+                    return url($crud->route.'/'.$entry->getKey().'/pets');
+                },
+                'title' => 'view owner pets',
+            ],
+        ]);
     }
 
     /**

app/Http/Controllers/Admin/PetShop/OwnerPetsCrudController.php

@@ -0,0 +1,84 @@
+<?php
+
+namespace App\Http\Controllers\Admin\PetShop;
+
+use Backpack\CRUD\app\Http\Controllers\Operations\CreateOperation;
+use Backpack\CRUD\app\Http\Controllers\Operations\UpdateOperation;
+use Backpack\CRUD\app\Library\CrudPanel\CrudPanelFacade as CRUD;
+use Illuminate\Database\Eloquent\Builder;
+
+class OwnerPetsCrudController extends PetCrudController
+{
+    use CreateOperation {store as traitStore; }
+    use UpdateOperation {update as traitUpdate; }
+
+    private int $owner;
+
+    /**
+     * Configure the CrudPanel object. Apply settings to all operations.
+     *
+     * @return void
+     */
+    public function setup()
+    {
+        parent::setup();
+
+        // get the owner parameter
+        $this->owner = \Route::current()->parameter('owner');
+
+        // set a different route for the admin panel
+        CRUD::setRoute(config('backpack.base.route_prefix').'/pet-shop/owner/'.$this->owner.'/pets');
+
+        // show only that owner's pets
+        CRUD::addBaseClause(function (Builder $query) {
+            $query->whereHas('owners', function (Builder $query) {
+                $query->where('owner_id', $this->owner)
+                  ->where('role', 'Owner');
+            });
+        });
+    }
+
+    protected function setupCreateOperation()
+    {
+        parent::setupCreateOperation();
+        // remove the relationship field
+        CRUD::removeField('owners');
+        // add an hidden field so that our stripRequest allow that key to go through.
+        CRUD::field('owners')->type('hidden');
+    }
+
+    protected function setupUpdateOperation()
+    {
+        parent::setupUpdateOperation();
+        // remove the relationship field
+        CRUD::removeField('owners');
+        // add an hidden field so that our stripRequest allow that key to go through.
+        CRUD::field('owners')->type('hidden');
+    }
+
+    public function store()
+    {
+        CRUD::setRequest($this->addOwnerToRequest());
+
+        return $this->traitStore();
+    }
+
+    public function update()
+    {
+        CRUD::setRequest($this->addOwnerToRequest());
+
+        return $this->traitUpdate();
+    }
+
+    private function addOwnerToRequest()
+    {
+        return CRUD::getRequest()->merge([
+            'owners' => [
+                [
+                    'owners' => $this->owner,
+                    'role'   => 'Owner',
+                ],
+            ],
+        ]);
+    }
+}

composer.json

@@ -7,7 +7,7 @@
     "require": {
         "php": "^8.1",
         "laravel/framework": "^10.0",
-        "backpack/crud": "^6.0",
+        "backpack/crud": "^6.1.13",
         "backpack/pro": "^2.0",
         "backpack/filemanager": "^3.0",
         "backpack/theme-coreuiv2": "^1.0",

routes/backpack/custom.php

@@ -79,12 +79,16 @@
         Route::get('about', function () {
             return view('admin.petshop_about');
         });
-        Route::crud('owner', 'OwnerCrudController');
         Route::crud('invoice', 'InvoiceCrudController');
         Route::crud('pet', 'PetCrudController');
         Route::crud('passport', 'PassportCrudController');
         Route::crud('skill', 'SkillCrudController');
         Route::crud('comment', 'CommentCrudController');
         Route::crud('badge', 'BadgeCrudController');
+        Route::crud('owner', 'OwnerCrudController');
+        // nested crud panel for owner pets
+        Route::group(['prefix' => 'owner/{owner}'], function () {
+            Route::crud('pets', 'OwnerPetsCrudController');
+        });
     });
 }); // this should be the absolute last line of this file