跨多个表选择不同的查询答案

【问题标题】：Select distinct query across multiple tables跨多个表选择不同的查询
【发布时间】：2014-03-29 11:13:28
【问题描述】：

我有一个包含姓名、姓氏、电子邮件、前姓氏的用户模型。还有 AdditionalEmail 模型，我在其中为用户存储额外的电子邮件。每个用户可以有多个额外的电子邮件。每个模型中分别设置了关系hasMany和belongsToMany。我必须搜索姓氏、前姓氏、电子邮件和其他电子邮件。我尝试使用可包含的行为并创建了下表进行查询：

$options['joins'] = array(
    array(
        'table' => 'users',
        'alias' => 'User',
        'type' => 'LEFT',
        'conditions' => array('User.id = AdditionalEmail.user_id')
    ));
$options['conditions'] = array('OR' => array(
    'User.surname LIKE' => $search,
    'User.former_surnames LIKE' => $search,
    'User.email LIKE' => $search,
    'AdditionalEmail.email LIKE' => $search));
$options['recursive'] = -1;
$options['fields'] = 'DISTINCT User.username, User.name, User.surname, User.former_surnames';
$options['order'] = array('User.surname' => 'asc');

以上内容对我不起作用。我终于得到了查询：

SELECT DISTINCT users.* FROM users LEFT JOIN additional_emails ON ( users.id = additional_emails.user_id ) WHERE ((additional_emails.email LIKE  \''. $search .'\') OR (users.email LIKE \''. $search .'\') OR (users.surname LIKE \''. $search .'\') OR (users.former_surnames LIKE \''. $search .'\')) ORDER BY users.surname

工作正常。如何使用用于查找（或分页）的 cakephp 选项构建此查询。问候彼得

【问题讨论】：

标签： mysql cakephp join distinct

【解决方案1】：

 $this->User->find('all', 
     array(
         'fields' => array('DISTINCT *'), 
         'joins' => array(
               array(
                    'table' => 'additional_emails',
                    'alias' => 'Email',
                    'type' => 'left',
                    'conditions' => array('User.id = Email.user_id')
               ),
          ),
          'conditions' => array(
               'OR' => array(
                   'Email.email LIKE' => $search,
                   'User.email LIKE' => $search,
                   'User.surname LIKE' => $search,
                   'User.former_surnames LIKE' => $search,
                )
          ),
          'order' => array('User.surname'),
     )
 );

【讨论】：