Added commands to delete component group (also fixes bug in API)

app/Commands/ComponentGroup/RemoveComponentGroupCommand.php

@@ -0,0 +1,36 @@
+<?php
+
+/*
+ * This file is part of Cachet.
+ *
+ * (c) Alt Three Services Limited
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace CachetHQ\Cachet\Commands\ComponentGroup;
+
+use CachetHQ\Cachet\Models\ComponentGroup;
+
+class RemoveComponentGroupCommand
+{
+    /**
+     * The component group to remove.
+     *
+     * @var \CachetHQ\Cachet\Models\ComponentGroup
+     */
+    public $group;
+
+    /**
+     * Create a new remove component group command instance.
+     *
+     * @param \CachetHQ\Cachet\Models\ComponentGroup $group
+     *
+     * @return void
+     */
+    public function __construct(ComponentGroup $group)
+    {
+        $this->group = $group;
+    }
+}

app/Events/ComponentGroup/ComponentGroupWasAddedEvent.php

@@ -0,0 +1,34 @@
+<?php
+
+/*
+ * This file is part of Cachet.
+ *
+ * (c) Alt Three Services Limited
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace CachetHQ\Cachet\Events\ComponentGroup;
+
+use CachetHQ\Cachet\Models\ComponentGroup;
+
+class ComponentGroupWasAddedEvent
+{
+    /**
+     * The component group that was added.
+     *
+     * @var \CachetHQ\Cachet\Models\ComponentGroup
+     */
+    public $group;
+
+    /**
+     * Create a new component group was added event instance.
+     *
+     * @return void
+     */
+    public function __construct(ComponentGroup $group)
+    {
+        $this->group = $group;
+    }
+}

app/Events/ComponentGroup/ComponentGroupWasRemovedEvent.php

@@ -0,0 +1,34 @@
+<?php
+
+/*
+ * This file is part of Cachet.
+ *
+ * (c) Alt Three Services Limited
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace CachetHQ\Cachet\Events\ComponentGroup;
+
+use CachetHQ\Cachet\Models\ComponentGroup;
+
+class ComponentGroupWasRemovedEvent
+{
+    /**
+     * The component group that was removed.
+     *
+     * @var \CachetHQ\Cachet\Models\ComponentGroup
+     */
+    public $group;
+
+    /**
+     * Create a new component group was removed event instance.
+     *
+     * @return void
+     */
+    public function __construct(ComponentGroup $group)
+    {
+        $this->group = $group;
+    }
+}

app/Handlers/Commands/ComponentGroup/RemoveComponentGroupCommandHandler.php

@@ -0,0 +1,40 @@
+<?php
+
+/*
+ * This file is part of Cachet.
+ *
+ * (c) Alt Three Services Limited
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace CachetHQ\Cachet\Handlers\Commands\ComponentGroup;
+
+use CachetHQ\Cachet\Commands\ComponentGroup\RemoveComponentGroupCommand;
+use CachetHQ\Cachet\Events\ComponentGroup\ComponentGroupWasRemovedEvent;
+use CachetHQ\Cachet\Models\ComponentGroup;
+
+class RemoveComponentGroupCommandHandler
+{
+    /**
+     * Handle the remove component group command.
+     *
+     * @param \CachetHQ\Cachet\Commands\ComponentGroup\RemoveComponentGroupCommand $command
+     *
+     * @return void
+     */
+    public function handle(RemoveComponentGroupCommand $command)
+    {
+        $group = $command->group;
+
+        event(new ComponentGroupWasRemovedEvent($group));
+
+        // Remove the group id from all component.
+        $group->components->map(function ($component) {
+            $component->update(['group_id' => 0]);
+        });
+
+        $group->delete();
+    }
+}

app/Http/Controllers/Api/ComponentGroupController.php

@@ -11,14 +11,18 @@
 
 namespace CachetHQ\Cachet\Http\Controllers\Api;
 
+use CachetHQ\Cachet\Commands\ComponentGroup\RemoveComponentGroupCommand;
 use CachetHQ\Cachet\Models\ComponentGroup;
 use Exception;
 use GrahamCampbell\Binput\Facades\Binput;
+use Illuminate\Foundation\Bus\DispatchesJobs;
 use Illuminate\Http\Request;
 use Symfony\Component\HttpKernel\Exception\BadRequestHttpException;
 
 class ComponentGroupController extends AbstractApiController
 {
+    use DispatchesJobs;
+
     /**
      * Get all groups.
      *
@@ -93,7 +97,7 @@ class ComponentGroupController extends AbstractApiController
      */
     public function deleteGroup(ComponentGroup $group)
     {
-        $group->delete();
+        $this->dispatch(new RemoveComponentGroupCommand($group));
 
         return $this->noContent();
     }

app/Http/Controllers/Dashboard/ComponentController.php

@@ -14,6 +14,7 @@ namespace CachetHQ\Cachet\Http\Controllers\Dashboard;
 use AltThree\Validator\ValidationException;
 use CachetHQ\Cachet\Commands\Component\AddComponentCommand;
 use CachetHQ\Cachet\Commands\Component\RemoveComponentCommand;
+use CachetHQ\Cachet\Commands\ComponentGroup\RemoveComponentGroupCommand;
 use CachetHQ\Cachet\Models\Component;
 use CachetHQ\Cachet\Models\ComponentGroup;
 use CachetHQ\Cachet\Models\Tag;
@@ -207,11 +208,7 @@ class ComponentController extends Controller
      */
     public function deleteComponentGroupAction(ComponentGroup $group)
     {
-        $group->components->map(function ($component) {
-            $component->update(['group_id' => 0]);
-        });
-
-        $group->delete();
+        $this->dispatch(new RemoveComponentGroupCommand($group));
 
         return Redirect::route('dashboard.components.index');
     }