[英]When parameter is not passed to controller over url
In cakephp, I've a controller that should receive a parameter and then call model to work with database to show the result in a view. 在cakephp中,我有一个控制器,该控制器应接收一个参数,然后调用模型与数据库一起使用以在视图中显示结果。 Pretty common mvc approach.
相当常见的mvc方法。
Imagine the controller as "Insert a new post" which should be associated to an specific user. 将该控制器想象为“插入新帖子”,它应该与特定用户相关联。
So, the URL should be: http://mysite/inspost/(user_id).
因此,URL应为:
http://mysite/inspost/(user_id).
The problem is, when URL is like http://mysite/inspost/
问题是,URL如
http://mysite/inspost/
It will show the same view and will insert the new post even if the user_id has not been specified. 即使未指定user_id,它也会显示相同的视图并插入新帖子。
How can I control this? 我该如何控制?
From the 2 nd page of the blog tutorial, Adding a layer : 在博客教程的第二页上, 添加一个层 :
public function view($id = null) {
if (!$id) {
throw new NotFoundException(__('Invalid post'));
}
$post = $this->Post->findById($id);
if (!$post) {
throw new NotFoundException(__('Invalid post'));
}
$this->set('post', $post);
}
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