1

我定义了以下模型关系：

class Publication extends AppModel {

    var $name = 'Publication';

    var $hasAndBelongsToMany = array(
        'Author'=>array(
            'className'=>'Author'
        )
    );     
}

class Author extends AppModel {

    var $name = 'Author';

    var $hasAndBelongsToMany = array(
        'Publication'=>array(
            'className'=>'Publication'
        )
    );

    var $belongsTo = array(
        'College' => array (
            'className' => 'College'
        )
    );      
}

class College extends AppModel {

    var $name = 'College';

var $hasMany = array(
        'Department'=>array(
            'className'=>'Department'
        )
    );      
}

class Department extends AppModel {

    var $name = 'Department';

var $belongsTo = array(
        'College'=>array(
            'className'=>'College'
        )
    );      
}

数据库表设置正确（HABTM 的连接表等）。我试图找到一个数据库查询来统治它们。我想创建一个查询，以查找所有相关作者、学院、部门等的出版物。从表单中获取数据后，我尝试运行如下查询：

 $conditions = array(
            "Author.id" => $this->data['authors'],
            "Publication.year" => $this->data['year']                                
            );
$publications = $this->Publication->find('all', array('conditions' => $conditions));

这会引发 SQL 错误，指出 Author.id 不是有效字段。现在，这是因为在搜索 Author.id 时尚未完成与“authors”数据库表的连接。但是，如果我这样做：

$pubs = $this->Publication->find('all', array('conditions' => $conditions));

然后我得到一个数组，其中包含所有相关作者的所有出版物（但由于某种原因，不是相关的大学）。

我的问题是：在搜索 Author.id 之前，我需要做什么才能使表加入？我尝试使用 bindModel、containable、子查询，但由于某种原因（可能是 ID10T 错误）无法使它们工作。

感谢您的任何建议！

编辑：以下调用的结果：

$this->Publication->recursive = 2;
$pubs = $this->Publication->find('all');

如下面所述：

Array (

[0] => Array ( [Publication] => Array ( [id] => 1 [title] => TestArticle [year] => 2011 [type_id] => 3 ) [Type] => Array ( [id] = > 3 [type_name] => Journal Articles ) [Author] => Array ( [0] => Array ( [id] => 2 [firstname] => Jeremy [lastname] => Gustine [middle] => A [faculty ] => 0 [college_id] => 4 [AuthorsPublication] => 数组 ( [id] => 3 [author_id] => 2 [publication_id] => 1 ) [College] => 数组 ( [id] => 4 [ College_name] => 文学、艺术和科学 ) ) [1] => 数组 ( [id] => 3 [firstname] => George [lastname] => Obama [middle] => A [faculty] => 0 [ College_id] => 6 [AuthorsPublication] => 数组（[id] => 2 [author_id] => 3 [publication_id] =>1 ) [College] => Array ( [id] => 6 [college_name] => 公共事务学院) ) [2] => Array ( [id] => 2 [firstname] => Jeremy [lastname] => Gustine [中间] => A [faculty] => 0 [college_id] => 4 [AuthorsPublication] => Array ([id] => 1 [author_id] => 2 [publication_id] => 1) [College] => Array ( [id] => 4 [college_name] => Letters, Arts, and Sciences) ) ) ) [1] => Array ( [Publication] => Array ( [id] => 2 [title] => TestBook [ year] => 2010 [type_id] => 1 ) [Type] => Array ( [id] => 1 [type_name] => Books ) [Author] => Array ( [0] => Array ( [id] = > 7 [firstname] => Sony [lastname] => Stuff [middle] => L [faculty] => 0 [college_id] =>5 [AuthorsPublication] => 数组（[id] => 4 [author_id] => 7 [publication_id] => 2）[College] => 数组（[id] => 5 [college_name] => 护理与健康科学） ) ) ) )

希望这有点可读...

4

1 回答 1

1

你的第二个发现是正确的

IE$pubs = $this->Publication->find('all', array('conditions' => $conditions));

就在上面尝试使用递归 2（下面的代码）来获得相关College。

$this->Publication->recursive = 2;

于 2012-07-06T05:47:01.670 回答