设置默认模型条件 [英] Setting default model conditions

问题描述

我有一个条件，我的大多数模型将检索数据时必须遵守。

I have a condition on which most of my models will have to adhere when retrieving data.

此条件将是用户登录的公司的ID因此，例如，假设公司ID为1，那么所有与company_id 1相关的信息都必须显示。

This condition will be the id of the company to which the user logged in. So for instance, let's say the company id is 1, then all the information relating to company_id 1 must show.

如何为我的模型设置默认条件？

How can I set a default condition to my models?

推荐答案

检查此代码

class FooModel extends AppModel {

    protected $_companyId = null;

    public function setCompanyId($companyId) {
        // Optional validation of the id here
        $this->_companyId = $companyId;
    }

    public function beforeFind($query) {
        if (!empty($this->_companyId)) {
            $query['conditions'][$this->alias . '.company_id'] = $this->_companyId;
        }
        return $query;
    }
}

要解除模型我建议你在一个行为中实现这两个方法，并将它只附加到需要它的模型。

To decouple it from the models I would suggest you to implement these two methods in a behavior and attach it to only the models that need it.

编辑，这里作为行为： / strong>

Edit, here as behavior:

class CompanyFilterBehavior extends ModelBehavior {

    protected $_companyId = null;

    public function setCompanyId(Model $Model, $companyId) {
        // Optional validation of the id here
        $this->_companyId = $companyId;
    }

    public function beforeFind(Model $Model, $query) {
        if (!empty($this->_companyId)) {
            $query['conditions'][$Model->alias . '.company_id'] = $this->_companyId;
        }
        return $query;
    }
}

在您的AppController中，您可以这样做：

In your AppController you can do this:

public function beforeFilter() {
    if ($this->User->loggedIn() 
        && $this->{$this->modelClass}->Behaviors->loaded('CompanyFilter'))
    {
        $this->{$this->modelClass}->setCompanyId($this->Auth->user('company_id'));
    }
}

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