如何在CakePHP中设置模型关联？

Question

我想制作一个类似电子邮件的邮件系统，以便在Intranet上使用。数据库设计如下所示。 我想知道如何制作最好的模特协会。

CREATE TABLE IF NOT EXISTS `groups` (
    `id` int(10) unsigned NOT NULL AUTO_INCREMENT, 
    `name` varchar(60) NOT NULL, 
    `created` datetime NOT NULL, 
    `modified` datetime NOT NULL, 
    PRIMARY KEY (`id`) 
) ENGINE=InnoDB DEFAULT CHARSET=utf8 AUTO_INCREMENT=1 ; 

CREATE TABLE IF NOT EXISTS `im_folders` (
    `id` int(10) unsigned NOT NULL AUTO_INCREMENT, 
    `name` varchar(255) NOT NULL, 
    `user_id` int(11) NOT NULL, 
    `created` datetime NOT NULL, 
    `modified` datetime NOT NULL, 
    PRIMARY KEY (`id`) 
) ENGINE=InnoDB DEFAULT CHARSET=utf8 AUTO_INCREMENT=1 ; 

CREATE TABLE IF NOT EXISTS `messages` (
    `id` int(10) unsigned NOT NULL AUTO_INCREMENT, 
    `subject` varchar(255) NOT NULL, 
    `body` text, 
    `user_id` int(11) NOT NULL, 
    `created` datetime DEFAULT NULL, 
    `modified` datetime DEFAULT NULL, 
    PRIMARY KEY (`id`) 
) ENGINE=InnoDB DEFAULT CHARSET=utf8 AUTO_INCREMENT=1 ; 

CREATE TABLE IF NOT EXISTS `users` (
    `id` int(10) unsigned NOT NULL AUTO_INCREMENT, 
    `group_id` int(11) NOT NULL, 
    `username` varchar(60) NOT NULL, 
    `email` varchar(255) NOT NULL, 
    `password` varchar(60) NOT NULL, 
    `name` varchar(255) NOT NULL, 
    `firstname` varchar(255) NOT NULL, 
    `lastname` varchar(255) NOT NULL, 
    `created` datetime NOT NULL, 
    `modified` datetime NOT NULL, 
    PRIMARY KEY (`id`) 
) ENGINE=InnoDB DEFAULT CHARSET=utf8 AUTO_INCREMENT=1 ; 

CREATE TABLE IF NOT EXISTS `users_messages` (
    `id` int(10) unsigned NOT NULL AUTO_INCREMENT, 
    `user_id` int(11) NOT NULL, 
    `message_id` int(11) NOT NULL, 
    `im_folder_id` int(11) NOT NULL, 
    `IsSender` tinyint(1) NOT NULL, 
    `IsRead` tinyint(1) NOT NULL, 
    `IsStarred` tinyint(1) NOT NULL, 
    `IsDeleted` tinyint(1) NOT NULL, 
    `created` datetime NOT NULL, 
    `modified` datetime NOT NULL, 
    PRIMARY KEY (`id`) 
) ENGINE=InnoDB DEFAULT CHARSET=utf8 AUTO_INCREMENT=1 ; 

Answer 1

因此，你加在users_messages表等信息，这样就不会正常工作HABTM。您需要创建另一个型号为UsersMessage.php

你的模型关联可能看起来像是为（如果我没有错过任何一个点） -

Group.php

public $hasMany = array('User'); 

ImFolder.php

public $belongsTo = array('User'); 
public $hasMany = array('UsersMessage'); 

Message.php

public $belongsTo = array('User'); 
public $hasMany = array('UsersMessage'); 

user.php的

public $belongsTo = array('Group'); 
public $hasMany = array('UsersMessage'); 

UsersMessage.php

public $useTable = 'users_messages'; 

public $belongsTo = array('User', 'Message', 'ImFolder'); 

详情连读hasMany through (The Join Model)