Nested CRUDs example

app/Http/Controllers/Admin/CreatorCrudController.php

@@ -0,0 +1,37 @@
+<?php
+
+namespace App\Http\Controllers\Admin;
+
+use Backpack\CRUD\app\Http\Controllers\CrudController;
+use Backpack\CRUD\app\Library\CrudPanel\CrudPanelFacade as CRUD;
+
+/**
+ * Class CreatorCrudController.
+ *
+ * @property-read CrudPanel $crud
+ */
+class CreatorCrudController extends CrudController
+{
+    use \Backpack\CRUD\app\Http\Controllers\Operations\ListOperation;
+
+    public function setup()
+    {
+        $this->crud->setModel('App\Models\Creator');
+        $this->crud->setRoute(config('backpack.base.route_prefix').'/creator');
+        $this->crud->setEntityNameStrings('creator', 'creators');
+    }
+
+    protected function setupListOperation()
+    {
+        $this->crud->addColumn('name');
+        $this->crud->addColumn([
+            'type'   => 'relationship_count',
+            'name'   => 'snippets',
+            'label'  => 'Snippets',
+            'suffix' => ' snippets',
+            'link'   => function ($entry) {
+                return backpack_url('creator/'.$entry->id.'/snippet');
+            },
+        ]);
+    }
+}

app/Http/Controllers/Admin/CreatorSnippetCrudController.php

@@ -0,0 +1,31 @@
+<?php
+
+namespace App\Http\Controllers\Admin;
+
+use Backpack\CRUD\app\Library\CrudPanel\CrudPanelFacade as CRUD;
+
+/**
+ * Class SnippetCrudController.
+ *
+ * @property-read CrudPanel $crud
+ */
+class CreatorSnippetCrudController extends SnippetCrudController
+{
+    use \Backpack\CRUD\app\Http\Controllers\Operations\ListOperation;
+    use \Backpack\CRUD\app\Http\Controllers\Operations\CreateOperation;
+    use \Backpack\CRUD\app\Http\Controllers\Operations\UpdateOperation;
+    use \Backpack\CRUD\app\Http\Controllers\Operations\DeleteOperation;
+    use \Backpack\CRUD\app\Http\Controllers\Operations\ShowOperation;
+
+    public function setup()
+    {
+        $user_id = \Route::current()->parameter('user_id');
+
+        $this->crud->setModel('App\Models\Snippet');
+        $this->crud->setRoute(config('backpack.base.route_prefix').'/creator/'.$user_id.'/snippet');
+        $this->crud->setEntityNameStrings('snippet', 'snippets');
+
+        // filter List operation (with search) to only show this users' entries
+        $this->crud->addClause('where', 'created_by', $user_id);
+    }
+}

app/Http/Controllers/Admin/MonsterCrudController.php

@@ -568,10 +568,10 @@ protected function setupCreateOperation()
         ]);
 
         $this->crud->addField([   // Browse multiple
-            'name'  => 'browse_multiple',
-            'label' => 'Browse multiple',
-            'type' => 'browse_multiple',
-            'tab' => 'Uploads',
+            'name'     => 'browse_multiple',
+            'label'    => 'Browse multiple',
+            'type'     => 'browse_multiple',
+            'tab'      => 'Uploads',
             'sortable' => true,
             // 'multiple' => true, // enable/disable the multiple selection functionality
             // 'mime_types' => null, // visible mime prefixes; ex. ['image'] or ['application/pdf']

app/Http/Controllers/Admin/MySnippetCrudController.php

@@ -0,0 +1,36 @@
+<?php
+
+namespace App\Http\Controllers\Admin;
+
+use Backpack\CRUD\app\Library\CrudPanel\CrudPanelFacade as CRUD;
+
+/**
+ * Class SnippetCrudController.
+ *
+ * @property-read CrudPanel $crud
+ */
+class MySnippetCrudController extends SnippetCrudController
+{
+    use \Backpack\CRUD\app\Http\Controllers\Operations\ListOperation;
+    use \Backpack\CRUD\app\Http\Controllers\Operations\CreateOperation;
+    use \Backpack\CRUD\app\Http\Controllers\Operations\UpdateOperation;
+    use \Backpack\CRUD\app\Http\Controllers\Operations\DeleteOperation;
+    use \Backpack\CRUD\app\Http\Controllers\Operations\ShowOperation;
+
+    public function setup()
+    {
+        $this->crud->setModel('App\Models\Snippet');
+        $this->crud->setRoute(config('backpack.base.route_prefix').'/my-snippet');
+        $this->crud->setEntityNameStrings('snippet', 'snippets');
+
+        // filter List operation (with search) to only show this users' entries
+        $this->crud->addClause('where', 'created_by', backpack_auth()->user()->id);
+
+        // if the user tries to access somone else's entries, block him
+        $entry = $this->crud->getCurrentEntry();
+
+        if ($entry && $entry->created_by != backpack_auth()->user()->id) {
+            abort(403, "You don't have access to this entry.");
+        }
+    }
+}

app/Http/Controllers/Admin/SnippetCrudController.php

@@ -0,0 +1,102 @@
+<?php
+
+namespace App\Http\Controllers\Admin;
+
+use App\Http\Requests\SnippetRequest;
+use Backpack\CRUD\app\Http\Controllers\CrudController;
+use Backpack\CRUD\app\Library\CrudPanel\CrudPanelFacade as CRUD;
+
+/**
+ * Class SnippetCrudController.
+ *
+ * @property-read CrudPanel $crud
+ */
+class SnippetCrudController extends CrudController
+{
+    use \Backpack\CRUD\app\Http\Controllers\Operations\ListOperation;
+    use \Backpack\CRUD\app\Http\Controllers\Operations\CreateOperation;
+    use \Backpack\CRUD\app\Http\Controllers\Operations\UpdateOperation;
+    use \Backpack\CRUD\app\Http\Controllers\Operations\DeleteOperation;
+    use \Backpack\CRUD\app\Http\Controllers\Operations\ShowOperation;
+
+    public function setup()
+    {
+        $this->crud->setModel('App\Models\Snippet');
+        $this->crud->setRoute(config('backpack.base.route_prefix').'/snippet');
+        $this->crud->setEntityNameStrings('snippet', 'snippets');
+    }
+
+    protected function setupListOperation()
+    {
+        $this->crud->addColumn('name');
+        $this->crud->addColumn([
+            'label'     => 'Category',
+            'type'      => 'select',
+            'name'      => 'category_id',
+            'entity'    => 'category',
+            'attribute' => 'name',
+        ]);
+        $this->crud->addColumn([
+            'label'     => 'Created by',
+            'type'      => 'select',
+            'name'      => 'created_by',
+            'entity'    => 'creator',
+            'attribute' => 'name',
+        ]);
+
+        $this->crud->addColumn([
+            'label'     => 'Updated by',
+            'type'      => 'select',
+            'name'      => 'updated_by',
+            'entity'    => 'updater',
+            'attribute' => 'name',
+        ]);
+    }
+
+    protected function setupShowOperation()
+    {
+        $this->setupListOperation();
+
+        $this->crud->addColumn('description');
+        $this->crud->addColumn('content');
+    }
+
+    protected function setupCreateOperation()
+    {
+        $this->crud->setValidation(SnippetRequest::class);
+
+        $this->crud->addField([
+            'type'              => 'text',
+            'name'              => 'name',
+            'label'             => 'Name',
+            'wrapperAttributes' => [
+                'class' => 'form-group col-md-6',
+            ],
+        ]);
+        $this->crud->addField([
+            'label'             => 'Category',
+            'type'              => 'select',
+            'name'              => 'category_id',
+            'entity'            => 'category',
+            'attribute'         => 'name',
+            'wrapperAttributes' => [
+                'class' => 'form-group col-md-6',
+            ],
+        ]);
+        $this->crud->addField([
+            'type'  => 'simplemde',
+            'name'  => 'description',
+            'label' => 'Description',
+        ]);
+        $this->crud->addField([
+            'type'  => 'textarea',
+            'name'  => 'content',
+            'label' => 'Content',
+        ]);
+    }
+
+    protected function setupUpdateOperation()
+    {
+        $this->setupCreateOperation();
+    }
+}

app/Http/Requests/CreatorRequest.php

@@ -0,0 +1,55 @@
+<?php
+
+namespace App\Http\Requests;
+
+use Illuminate\Foundation\Http\FormRequest;
+
+class CreatorRequest extends FormRequest
+{
+    /**
+     * Determine if the user is authorized to make this request.
+     *
+     * @return bool
+     */
+    public function authorize()
+    {
+        // only allow updates if the user is logged in
+        return backpack_auth()->check();
+    }
+
+    /**
+     * Get the validation rules that apply to the request.
+     *
+     * @return array
+     */
+    public function rules()
+    {
+        return [
+            // 'name' => 'required|min:5|max:255'
+        ];
+    }
+
+    /**
+     * Get the validation attributes that apply to the request.
+     *
+     * @return array
+     */
+    public function attributes()
+    {
+        return [
+            //
+        ];
+    }
+
+    /**
+     * Get the validation messages that apply to the request.
+     *
+     * @return array
+     */
+    public function messages()
+    {
+        return [
+            //
+        ];
+    }
+}

app/Http/Requests/SnippetRequest.php

@@ -0,0 +1,56 @@
+<?php
+
+namespace App\Http\Requests;
+
+use Illuminate\Foundation\Http\FormRequest;
+
+class SnippetRequest extends FormRequest
+{
+    /**
+     * Determine if the user is authorized to make this request.
+     *
+     * @return bool
+     */
+    public function authorize()
+    {
+        // only allow updates if the user is logged in
+        return backpack_auth()->check();
+    }
+
+    /**
+     * Get the validation rules that apply to the request.
+     *
+     * @return array
+     */
+    public function rules()
+    {
+        return [
+            'name'        => 'required|min:5|max:255',
+            'category_id' => 'required',
+        ];
+    }
+
+    /**
+     * Get the validation attributes that apply to the request.
+     *
+     * @return array
+     */
+    public function attributes()
+    {
+        return [
+            //
+        ];
+    }
+
+    /**
+     * Get the validation messages that apply to the request.
+     *
+     * @return array
+     */
+    public function messages()
+    {
+        return [
+            //
+        ];
+    }
+}

app/Models/Creator.php

@@ -0,0 +1,25 @@
+<?php
+
+namespace App\Models;
+
+use Backpack\CRUD\app\Models\Traits\CrudTrait;
+use Backpack\CRUD\app\Models\Traits\InheritsRelationsFromParentModel;
+
+class Creator extends BackpackUser
+{
+    use InheritsRelationsFromParentModel;
+    use CrudTrait;
+
+    protected $table = 'users';
+
+    /*
+    |--------------------------------------------------------------------------
+    | RELATIONS
+    |--------------------------------------------------------------------------
+    */
+
+    public function snippets()
+    {
+        return $this->hasMany('App\Models\Snippet', 'created_by');
+    }
+}