使用CakePHP,如何根据相关表上的条件选择记录
另一个noob问题——使用CakePHP的v1.2.1.8004,我认为 我有3个表,broker(B)、quote_site(QS)和broker_quote_site(BQS)将它们链接在一起 B有许多BQ(它属于B) QS有很多BQ(属于QS) 我试图检索链接到特定代理的quote站点,但CakePHP并没有在幕后进行表的连接 我的问题是:使用CakePHP,如何根据相关表上的条件选择记录,cakephp,cakephp-1.2,Cakephp,Cakephp 1.2,另一个noob问题——使用CakePHP的v1.2.1.8004,我认为 我有3个表,broker(B)、quote_site(QS)和broker_quote_site(BQS)将它们链接在一起 B有许多BQ(它属于B) QS有很多BQ(属于QS) 我试图检索链接到特定代理的quote站点,但CakePHP并没有在幕后进行表的连接 我的问题是: $quote_sites = $this->QuoteSite->find('all', array( 'cond
$quote_sites = $this->QuoteSite->find('all', array(
'conditions' => array(
'Broker.company_id' => $company_id,
'BrokerQuoteSite.is_active' => true
),
'contain' => array(
'BrokerQuoteSite' => array(
'Broker'
)
)
));
以下是相关模型:
<?php
class QuoteSite extends AppModel
{
var $name = 'QuoteSite';
//$validate set in __construct for multi-language support
//The Associations below have been created with all possible keys, those that are not needed can be removed
var $hasMany = array(
'BrokerQuoteSite' => array(
'className' => 'BrokerQuoteSite',
'foreignKey' => 'quote_site_id',
'dependent' => false,
'conditions' => '',
'fields' => '',
'order' => '',
'limit' => '',
'offset' => '',
'exclusive' => '',
'finderQuery' => '',
'counterQuery' => ''
)
);
}
?>
经纪人:
<?php
class Broker extends AppModel
{
var $name = 'Broker';
//$validate set in __construct for multi-language support
//The Associations below have been created with all possible keys, those that are not needed can be removed
var $hasMany = array(
'BrokerQuoteSite' => array(
'className' => 'BrokerQuoteSite',
'foreignKey' => 'broker_id',
'dependent' => false,
'conditions' => '',
'fields' => '',
'order' => '',
'limit' => '',
'offset' => '',
'exclusive' => '',
'finderQuery' => '',
'counterQuery' => ''
)
);
}
?>
最后一点:
<?php
class BrokerQuoteSite extends AppModel
{
var $name = 'BrokerQuoteSite';
//$validate set in __construct for multi-language support
//The Associations below have been created with all possible keys, those that are not needed can be removed
var $belongsTo = array(
'Broker' => array(
'className' => 'Broker',
'foreignKey' => 'broker_id',
'conditions' => '',
'fields' => '',
'order' => '',
) ,
'QuoteSite' => array(
'className' => 'QuoteSite',
'foreignKey' => 'quote_site_id',
'conditions' => '',
'fields' => '',
'order' => '',
)
);
}
?>
提前感谢您提供的任何提示/窍门。这是一个很好的问题,我认为应该分两步进行
$this->Broke = ClassRegistry::init("Broke");
$brokeids = $this->Broke->find("list",array("conditions"=>array('Broker.company_id' => $company_id))); //get all B ids
$this->QuoteSite->Behaviors->attach('Containable'); //use containable behavior
$quote_sites = $this->QuoteSite->find('all',array(
'contain'=>array(
'BrokerQuoteSite'=>array(
'conditions'=>array(
"BrokerQuoteSite.broke_id"=>$brokeids,
"BrokerQuoteSite.is_active" => true
)
)
)
)
);
代码还没有经过测试,可能有一些语法错误。希望能有所帮助
更新
$this->Broke = ClassRegistry::init("Broke");
$this->Broke->recursive=2;
$brokes = $this->Broke->find("all",array("conditions"=>array("Broke.company_id"=>$comany_id)));
如果您使用debug($brokes)查看结果,您需要的QS信息将被找到代码>。您需要做的是从数组中提取它们
干杯 Chris为什么不将Broker定义为一种HABTM关系,然后通过简单的查找就可以得到想要的结果
class Broker extends AppModel {
var $name = 'Broker';
var $hasAndBelongsToMany = array(
'QuoteSite' =>
array(
'className' => 'QuoteSite',
'joinTable' => 'broker_quote_sites',
'foreignKey' => 'broker_id',
'associationForeignKey' => 'quote_site_id'
)
);
}
非常感谢-看起来不错,稍后将试用。我担心这需要分步骤完成,这将我的cakePHP推得太远了。@Chris Kimpton,嗯,我认为还有另一种更简单的方法。请参阅我的更新plz。我看到了这一点,但看到它提到了联接表的特定命名约定以及联接表上的哪些字段-我不希望更改这些。但再看看,我认为它可能是灵活的,足以与我们所拥有的。。。谢谢。虽然默认行为依赖于各种约定,但正如Leo所建议的,您可以随意绕过约定。