问题描述
||
PlanDetails有很多公司。 PlanDetail表具有company_id字段。
这就是我需要实现的全部:PlanDetail.company_id = Company.id。因此,获取所有与PlanDetail.company_id匹配Company.id的计划详细信息。
这是我在plan_details_controller中遇到的查询:
function pd_list_by_company() {
$this->PlanDetail->unbindModel(array(\'hasMany\' => array(\'Plan\')));
$comp_id = $this->PlanDetail->Company->find(\'all\');
$result = $this->PlanDetails->find(\'all\',array(\'conditions\' => array
(\'Company.id\' => \'PlanDetail.company_id\')));
$company_id = $this->PlanDetail->read(\'company_id\');
}
我不能只是获得所需的结果。.我在这里做错了什么?
解决方法
在我看来,on1字段上的条件很简单:
$this->PlanDetail->find(\'all\',array(\'conditions\' => array(\'company_id\' => $company_id)))
或者,如果您也想要公司,并且您的关联已正确建立,请执行以下操作:
$company = $this->Company->read(null,$company_id);
// echo $company[\'Company\']
// echo $company[\'PlanDetail\'][0],$company[\'PlanDetail\'][1] etc...
您需要从某个地方(通常是URL)查询$company_id
:
public function pd_list_by_company($company_id)
然后使用URL/plan_details/pd_list_by_company/42
访问此操作,该URL可以使用$this->Html->link(\'foobar\',array(\'controller\' => \'plan_details\',\'action\' => \'pd_list_by_company\',42))
链接到。
完整的例子:
public function view($planId) {
$plan = $this->PlanDetail->read(null,$planId);
if (!$plan) {
$this->cakeError(\'error404\');
}
$otherPlansBySameCompany = $this->PlanDetail->find(\'all\',array(
\'conditions\' => array(\'company_id\' => $plan[\'PlanDetail\'][\'company_id\'])
));
$this->set(compact(\'plan\',\'otherPlansBySameCompany\'));
}
,我在“计划详细信息” view.ctp中显示set()查找结果。
这是我解决的方法:
function view($id = null) {
if (!$id) {
$this->Session->setFlash(__(\'Invalid plan detail\',true));
$this->redirect(array(\'action\' => \'index\'));
}
$this->set(\'planDetail\',$this->PlanDetail->read(null,$id));
$cid = $this->PlanDetail->read(\'Company.id\');
$cid_extract = Set::extract($cid,\'Company.id\');
$this->set(\'planComps\',$this->PlanDetail->find(\'all\',array(\'conditions\' => array(\"company_id\" => $cid_extract))));
}