Question

我的雇员只有一名雇主。在我的员工表中，我有一个名为loyer_id的字段。使用此信息的报告适用于我的本地开发设置，但不适用于我的虚拟主机。我不知道是什么原因导致的。

当我尝试提取所有员工的列表时，出现以下错误：

错误：SQLSTATE [42S22]：找不到列：1054未知列   “ where子句”中的“ Employer.last_name”

SQL查询：SELECT Employee。id，Employee。employer_id，   Employee。first_name，Employee。last_name，Employee。email，   Employee。webinar_id，Employee。questions，   Employee。correct_answers，Employee。required_to_pass，   Employee。status，Employee。role，Employee。sport，   Employee。program，Employee。created，Employee。modified   sportrisk_wp所在的employees。Employee   （（{Employee。last_name不像''）和（Employer。last_name不   如''）））和contain ='1'ORDER BY Employee。created DESC LIMIT   50

当我将debug更改为2时，在我的本地副本上，我在SQL日志中看到以下内容（它正在加入雇主）：

选择Employee。id，Employee。employer_id， Employee。first_name，Employee。last_name，Employee。email， Employee。webinar_id，Employee。questions， Employee。correct_answers，Employee。required_to_pass， Employee。status，Employee。role，Employee。sport， Employee。program，Employee。created，Employee。modified， Employer。id，Employer。employer_id，Employer。company， Employer。first_name，Employer。last_name，Employer。phone， Employer。email，Employer。username，Employer。password， Employer。usercode，Employer。subscriber，Employer。active， Employer。admin，Employer。created，Employer。modified， Employer中的status。local来自employees的左联接 Employee。local依users开启（Employer。Employee = employer_id。Employer）（（{id。Employee不像''）和（last_name。Employer不像'）））依last_name订购。Employee DESC LIMIT 50

我相信这是所有相关的代码。

UsersController

created

员工模式

// inside a larger function

// Load Employee Model
$this->loadModel('Employee');

// Base conditions - to hide some old records which do not contain name information.
$conditions = array(
        "Employee.last_name NOT LIKE" => '',
        "Employer.last_name NOT LIKE" => ''
    );

// Find records & paginate
$this->paginate = array(
    'limit' => 50,
    'conditions' => array(
        "AND" => $conditions
    ),
    'order' => array('Employee.created DESC')
);

$employees = $this->paginate('Employee');
?>

雇主模式

<?php
class Employee extends AppModel
{
    var $name = 'Employee';
    var $recursive = 1;
    var $belongsTo = array (
        'Employer' => array (
            'className' => 'Employer',
            'foreignKey' => 'employer_id',
            'order' => 'Employee.last_name ASC'
        )
    );

    public $actsAs = array('Containable');

    var $validate = array(
        'email' => array(
            'rule' => 'notBlank'
        ),
        'first_name' => array(
            'rule' => 'notBlank'
        ),
        'last_name' => array(
            'rule' => 'notBlank'
        ),
        'usercode' => array(
            'rule' => 'notBlank'
        )
    );
}
?>

我不知道为什么它不在一个环境中链接雇主模型，而在另一个环境中链接。我已经直接复制了所有文件。

SQL查询

这是我在托管站点上获得的查询

<?php
class Employer extends AppModel
{
    var $name = 'Employer';
    var $recursive = -1;
    var $hasOne = 'Supervisor';
    var $hasMany = 'Employee';

    public $useTable = 'users';
    public $actsAs = array('Containable');

    var $validate = array(
        'email' => array(
            'rule' => 'notBlank'
        ),
        'password' => array(
            'rule' => 'notBlank'
        )
    );
}
?>

这就是我在本地站点上找到的（以及正在寻找的东西）

SELECT `Employee`.`id`, `Employee`.`employer_id`, `Employee`.`first_name`, `Employee`.`last_name`, `Employee`.`email`, `Employee`.`webinar_id`, `Employee`.`questions`, `Employee`.`correct_answers`, `Employee`.`required_to_pass`, `Employee`.`status`, `Employee`.`role`, `Employee`.`sport`, `Employee`.`program`, `Employee`.`created`, `Employee`.`modified` FROM `sportrisk_wp`.`employees` AS `Employee` WHERE ((`Employee`.`last_name` NOT LIKE '') AND (`Employer`.`last_name` NOT LIKE '')) ORDER BY `Employee`.`created` DESC LIMIT 50

结束结果最后（在与Ved聊天之后），我的分页数组最终变成了这样，并且我的报告加载了。

SELECT `Employee`.`id`, `Employee`.`employer_id`, `Employee`.`first_name`, `Employee`.`last_name`, `Employee`.`email`, `Employee`.`webinar_id`, `Employee`.`questions`, `Employee`.`correct_answers`, `Employee`.`required_to_pass`, `Employee`.`status`, `Employee`.`role`, `Employee`.`sport`, `Employee`.`program`, `Employee`.`created`, `Employee`.`modified`, `Employer`.`id`, `Employer`.`employer_id`, `Employer`.`company`, `Employer`.`first_name`, `Employer`.`last_name`, `Employer`.`phone`, `Employer`.`email`, `Employer`.`username`, `Employer`.`password`, `Employer`.`usercode`, `Employer`.`subscriber`, `Employer`.`active`, `Employer`.`admin`, `Employer`.`created`, `Employer`.`modified`, `Employer`.`status` FROM `local`.`employees` AS `Employee` LEFT JOIN `local`.`users` AS `Employer` ON (`Employee`.`employer_id` = `Employer`.`id`) WHERE ((`Employee`.`last_name` NOT LIKE '') AND (`Employer`.`last_name` NOT LIKE '')) ORDER BY `Employee`.`created` DESC LIMIT 50

Answer 1

我认为您忘记了加载关联的数据，请使用contain

// Find records & paginate
$this->paginate = array(
    'contain' => array('Employer'),
    'fields' => array('Employer.id'), // add more fields
    'limit' => 50,
    'conditions' => array(
        "AND" => $conditions
    ),
    'joins' => array( array( 'alias' => 'Employer', 'table' => 'users', 'type' 
    => 'LEFT', 'conditions' => 'Employer.id = Employee.employer_id' ) ),
    'order' => array('Employee.created DESC')
);

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1 个答案: