CakePHP的遏制和属于关联的hasMany条件

Question

从CakePHP的手册：

Let's say you had a belongsTo relationship between Posts and Authors. Let's say you wanted to find all the posts that contained a certain keyword ("magic") or were created in the past two weeks, but you want to restrict your search to posts written by Bob: 

array (
    "Author.name" => "Bob", 
"OR" => array (
    "Post.title LIKE" => "%magic%", 
    "Post.created >" => date('Y-m-d', strtotime("-2 weeks")) 
) 
) 

然而，它不适合我的工作。我有Scrapes belongsTo Vargroup，Vargroup hasMany Scrape。我的刮伤表有一个字段vargroup_id

当我这样做：

$this->Vargroup->contain('Scrape'); 
$this->Vargroup->find('first'); 

我得到：

Array 
(
[Vargroup] => Array 
    (
     [id] => 16950 
     [item_id] => 1056 
     [image] => cn4535d266.jpg 
     [price] => 22.95 
     [instock] => 1 
     [timestamp] => 2012-10-29 11:35:10 
    ) 

[Scrape] => Array 
    (
     [0] => Array 
      (
       [id] => 18163 
       [item_id] => 1056 
       [vargroup_id] => 16950 
       [timestamp] => 2012-05-23 15:24:31 
       [instock] => 1 
       [price] => 22.95 
      ) 
    ) 
) 

但是当我做：

$this->Vargroup->contain('Scrape'); 
$this->Vargroup->find('first', array(
'conditions' => array(
    'not' => array(
    array('Scrape.timestamp >' => $today) 
    ) 
) 
)); 

即时得到下面的误差关联sql输出

Warning (512): SQL Error: 1054: Unknown column 'Scrape.timestamp' in 'where clause' 
Query: SELECT `Vargroup`.`id`, `Vargroup`.`item_id`, `Vargroup`.`image`, `Vargroup`.`price`, `Vargroup`.`instock`, `Vargroup`.`timestamp` FROM `vargroups` AS `Vargroup` WHERE `Scrape`.`timestamp` = '2012-10-29 

它看起来不像它绑定桌子.. 任何帮助，将不胜感激。 感谢

Answer 1

试试这个：

$this->Vargroup->contain('Scrape'); 
$this->Vargroup->find('first', array(
    'conditions' => array(
    'not' => array(
     'Scrape.timestamp >' => array($today) 
    ) 
    ) 
)); 

我觉得从CakePHP的页面这个例子告诉做一个“不”条件的正确方法， 检查出来。

array(
    "NOT" => array("Post.title" => array("First post", "Second post", "Third post")) 
) 

这是复杂的查找条件页面，如果您有更多的问题。 Cakephp complex find conditions