CakePHP模型关联与查询优化实例

本文通过实例展示了在CakePHP中进行模型关联和查询优化的方法，通过使用CakePHP框架提供的强大功能，实现了高效的数据库查询和数据关联。

// CakePHP模型定义
class User extends AppModel {
    public $hasMany = array(
        'Post' => array(
            'className' => 'Post',
            'foreignKey' => 'user_id'
        )
    );
}

class Post extends AppModel {
    public $belongsTo = array(
        'User' => array(
            'className' => 'User',
            'foreignKey' => 'user_id'
        )
    );
}

// CakePHP查询与关联
$posts = $this->User->find('all', array(
    'conditions' => array('User.username' => 'john'),
    'contain' => array('Post')
));

// 打印结果与注释
foreach ($posts as $user) {
    echo "用户名：" . $user['User']['username'] . "\n";
    foreach ($user['Post'] as $post) {
        echo "文章标题：" . $post['title'] . "\n";
    }
}

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