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 Post subject: Controll Reverse Engineering to allow many to many in myisam
PostPosted: Tue May 17, 2011 3:36 am 
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Joined: Thu Aug 16, 2007 11:42 am
Posts: 2
I don't know does somebody can solve this problem but I will try...

I know how to create relationship "many-to-one" but how to create "many-to-many" relationship when you are facing myisam tables in mysql.

Here is the table structure:

CREATE TABLE `worker_zrm` (
`id_worker` int(10) unsigned NOT NULL,
`id_zrm` int(10) unsigned NOT NULL,
UNIQUE KEY `UNIQUE` (`id_worker`,`id_zrm`),
KEY `WORKER` (`id_worker`),
KEY `ZRM` (`id_zrm`)
) ENGINE=MyISAM DEFAULT CHARSET=utf8;

CREATE TABLE `worker` (
`id` int(10) unsigned NOT NULL auto_increment,
`name` varchar(255) NOT NULL,
`kontact` varchar(255) NOT NULL,
PRIMARY KEY (`id`)
) ENGINE=MyISAM DEFAULT CHARSET=utf8;

CREATE TABLE `zrm` (
`id` int(10) unsigned NOT NULL auto_increment,
`name` varchar(255) NOT NULL,
`type` int(10) unsigned NOT NULL default '2',
`id_station` int(10) unsigned NOT NULL,
PRIMARY KEY (`id`),
KEY `id_station` (`id_station`)
) ENGINE=MyISAM DEFAULT CHARSET=utf8;

CREATE TABLE `order` (
`id` int(10) unsigned NOT NULL auto_increment,
`pw_nr` int(10) unsigned default NULL,
`zrm_id` int(10) unsigned default NULL,
PRIMARY KEY (`id`)
) ENGINE=MyISAM AUTO_INCREMENT=1 DEFAULT CHARSET=utf8;

There is no foreign keys because myisam doesn't support it but I want in my generated class for `order` table to fetch all workers in zrm. Zrm is a group of workers. Table `worker_zrm` tell us which worker belong to which zrm. In table `order` we have column `zrm_id` so we want in our generated class for `order` to have such method getWorkers() with return type List<Worker>. Is there any posibility to do that with reverse enginnering tool?


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