Refactor Task model to use morphs for creator and assignee relationships

database/migrations/2023_05_18_113529_add_tasks_table.php

@@ -16,10 +16,8 @@ public function up(): void
             $table->string('name');
             $table->text('description')->nullable();
             $table->enum('status', ['pending', 'completed', 'running'])->default('pending');
-            $table->unsignedBigInteger('owner_id')->nullable();
-            $table->string('owner_class')->nullable();
-            $table->unsignedBigInteger('assignee_id')->nullable();
-            $table->string('assignee_class')->nullable();
+            $table->morphs('creator');
+            $table->morphs('assignee');
             $table->string('job')->nullable();
             $table->text('job_data')->nullable();
             $table->timestamp('due_date')->nullable();

src/Models/Task.php

@@ -15,7 +15,7 @@ class Task extends Model
     const STATUS_COMPLETED = 'completed';
     const STATUS_RUNNING = 'running';
 
-    protected $fillable = [
+    protected array $fillable = [
         'name',
         'description',
         'status',
@@ -31,20 +31,17 @@ class Task extends Model
         'completed_by',
     ];
 
-    /**
-     * @return MorphTo
-     */
     public function owner(): MorphTo
     {
-        return $this->morphTo('owner', 'owner_class', 'owner_id');
+        return $this->morphTo();
     }
 
     /**
      * @return MorphTo
      */
     public function assignee(): MorphTo
     {
-        return $this->morphTo('assignee', 'assignee_class', 'assignee_id');
+        return $this->morphTo();
     }
 
     /**