title: Add [username] to fillable property to allow mass assignment on [App/post]
body: <p>Iam learning Laravel and PHP, I am trying to add a post into my table by using Tinker from Artisan.</p>
  
  <p>I receive these error I don't understand :</p>
  
  <pre><code>Illuminate/Database/Eloquent/MassAssignmentException with message 'Add [username] to fillable property to allow mass assignment on [App/post].'
  </code></pre>
  
  <p>In my Post.php model I have :</p>
  
  <pre><code>    protected $fillable = ['username', 'email', 'content'];
  </code></pre>
  
  <p>Thank you for your help</p>