Laravel将数组转换为模型

我有一个数组如下

      'topic' => 
  array (
    'id' => 13,
    'title' => 'Macros',
    'content' => '
Macros. This is the updated content.
',
    'created_at' => '2014-02-28 18:36:55',
    'updated_at' => '2014-05-14 16:42:14',
    'category_id' => '5',
    'tags' => 'tags',
    'referUrl' => '',
    'user_id' => 3,
    'videoUrl' => '',
    'useDefaultVideoOverlay' => 'true',
    'positive' => 0,
    'negative' => 1,
    'context' => 'macros',
    'viewcount' => 60,
    'deleted_at' => NULL,
  )

我想使用这个数组并将其转换/转换为主题模型.有没有办法可以做到这一点.

谢谢