Laravel doesn't return relation id into child table (One To One Relationship)

Im about to make Create Model Eloquent by having two table (one to one relationship) Task a parent to E-katalog as a child. But it doesn’t work for my relation id(task_id) in my Ekatalog table

this is my Tables looks like

Task

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   id
   title

E-Katalog

   id
   type
   task_id

My migrations :

Schema::create('tasks', function (Blueprint $table) {
            $table->id();
            $table->string('title');
            $table->timestamps();
}

Schema::create('ekatalogs', function (Blueprint $table) {
            $table->id();
            $table->foreignId('task_id')->nullable(),
            $table->string('type');
            ->nullable();
}

Relation in Model in my Task:

public function ekatalog(){
        return $this->hasOne(Ekatalog::class);
    }

Controller :

  //validation
  $taskData = $request->validate([
            'title' => 'required|max:255']);
  $ekatalogData =  $request->validate([
            'type' => 'max:255']);
  //create 
  $task->create($taskData);
  $task->ekatalog()->create($ekatalogData);

the code is working, but task_id in my Ekatalog is null. i thought it automatically make or generate value id by itself from parent’s id(Task). How can i make it work?

>Solution :

You’re correct in thinking that Eloquent should automatically set the task_id value in the Ekatalog table when you create a new Ekatalog instance through the ekatalog(). However, it looks like you have a small syntax error in your migration that’s preventing this from working correctly.

Schema::create('ekatalogs', function (Blueprint $table) {
    $table->id();
    $table->foreignId('task_id')->nullable();
    $table->string('type')->nullable();
    $table->timestamps();
});

Note the removal of the comma after the foreignId('task_id')->nullable() line. This should allow you to properly set the task_id value in the Ekatalog table when creating a new Ekatalog instance through the ekatalog() relationship of a Task instance

$task = Task::create(['title' => 'My Task']);
$ekatalog = $task->ekatalog()->create(['type' => 'My Ekatalog Type']);

This should set the task_id value in the Ekatalog table to the ID of the new Task instance.