获取相同类别的前一个/下一个帖子

Question

所以，我所拥有的是显示帖子的页面。帖子被收集到项目中。而且，在这个页面上，除了文章外，我还要显示同一个项目的上一篇和下一篇文章。所以，我有这个在我的控制器：

$this->set("post", $this->Post->find("first", array("conditions" => array("Post.id" => $id), "contain" => array("User", "Project", "Project.Post" => array("id", "image", "title"), "Comment", "Comment.User" => array("id", "username", "mail"), "Comment.User.Post" => array("id", "image", "title"))))); 
$this->set("neighbors", $this->Post->find("neighbors", array("field" => "id", "value" => $id))); 

的问题是，它从所有的岗位，不仅同一项目的那些拿到一个和下一个职位。

所以，如果你能帮助我一点:)

Answer 1

我假设邮政属于关联项目和项目的hasMany帖子。

您将只需要添加一个额外的条件：

$post = $this->Post->find("first", ...); // this is your first find call, assign it to a var instead 

$neighbors = $this->Post->find('neighbors', array(
    'field' => 'id', 
    'value' => $id, 
    'conditions' => array(
     'Post.project_id' => $post['Post']['project_id'], 
    ), 
)); 
$this->set(compact('post', 'neighbors')); 

我还没有尝试过，但看着源，findNeighbors不兑现conditions关键。