Episode 25 Complete

app/Activity.php

@@ -12,4 +12,9 @@ class Activity extends Model
      * @var array
      */
     protected $guarded = [];
+
+    public function subject()
+    {
+        return $this->morphTo();
+    }
 }

app/Observers/TaskObserver.php

@@ -14,7 +14,7 @@ class TaskObserver
      */
     public function created(Task $task)
     {
-        $task->project->recordActivity('created_task');
+        $task->recordActivity('created_task');
     }
 
     /**
@@ -25,6 +25,6 @@ public function created(Task $task)
      */
     public function deleted(Task $task)
     {
-        $task->project->recordActivity('deleted_task');
+        $task->recordActivity('deleted_task');
     }
 }

app/Task.php

@@ -36,7 +36,7 @@ public function complete()
     {
         $this->update(['completed' => true]);
 
-        $this->project->recordActivity('completed_task');
+        $this->recordActivity('completed_task');
     }
 
     /**
@@ -46,7 +46,7 @@ public function incomplete()
     {
         $this->update(['completed' => false]);
 
-        $this->project->recordActivity('incompleted_task');
+        $this->recordActivity('incompleted_task');
     }
 
     /**
@@ -68,4 +68,27 @@ public function path()
     {
         return "/projects/{$this->project->id}/tasks/{$this->id}";
     }
+
+    /**
+     * Record activity for a project.
+     *
+     * @param string $description
+     */
+    public function recordActivity($description)
+    {
+        $this->activity()->create([
+            'project_id' => $this->project_id,
+            'description' => $description
+        ]);
+    }
+
+    /**
+     * The activity feed for the project.
+     *
+     * @return \Illuminate\Database\Eloquent\Relations\MorphMany
+     */
+    public function activity()
+    {
+        return $this->morphMany(Activity::class, 'subject')->latest();
+    }
 }

database/migrations/2019_01_24_143508_create_activities_table.php

@@ -16,6 +16,7 @@ public function up()
         Schema::create('activities', function (Blueprint $table) {
             $table->increments('id');
             $table->unsignedInteger('project_id');
+            $table->nullableMorphs('subject');
             $table->string('description');
             $table->timestamps();
 

resources/views/projects/activity/completed_task.blade.php

@@ -1 +1 @@
-You completed a task
+You completed "{{ $activity->subject->body }}"

resources/views/projects/activity/created_task.blade.php

@@ -1 +1 @@
-You created a task
+You created "{{ $activity->subject->body }}"

resources/views/projects/activity/incompleted_task.blade.php

@@ -0,0 +1 @@
+You incompleted "{{ $activity->subject->body }}"

tests/Feature/TriggerActivityTest.php

@@ -2,6 +2,7 @@
 
 namespace Tests\Feature;
 
+use App\Task;
 use Facades\Tests\Setup\ProjectFactory;
 use Illuminate\Foundation\Testing\RefreshDatabase;
 use Tests\TestCase;
@@ -38,7 +39,12 @@ function creating_a_new_task()
         $project->addTask('Some task');
 
         $this->assertCount(2, $project->activity);
-        $this->assertEquals('created_task', $project->activity->last()->description);
+
+        tap($project->activity->last(), function ($activity) {
+            $this->assertEquals('created_task', $activity->description);
+            $this->assertInstanceOf(Task::class, $activity->subject);
+            $this->assertEquals('Some task', $activity->subject->body);
+        });
     }
 
     /** @test */
@@ -53,7 +59,11 @@ function completing_a_task()
             ]);
 
         $this->assertCount(3, $project->activity);
-        $this->assertEquals('completed_task', $project->activity->last()->description);
+
+        tap($project->activity->last(), function ($activity) {
+            $this->assertEquals('completed_task', $activity->description);
+            $this->assertInstanceOf(Task::class, $activity->subject);
+        });
     }
 
     /** @test */