box it's yours and it can contain important information that should
not be "stolen" from you even if the user that sent it is not there
any more.
On 5 jul, 20:52, cricket <zijn.digi...@gmail.com> wrote:
> On Mon, Jul 5, 2010 at 10:17 AM, duderion <adrian.g...@googlemail.com> wrote:
> > Hi Guys
>
> > i have a question about cake compatible database design:
>
> > i have a table "mails" and a table "users"
>
> > my table mail references 2 users from the users-table as Sender,
> > Recipient
>
> > but then, i have 2 foreign keys in it, and i dont know how to handle
> > this properly
> > (or even name it correctly)
>
> > Anyone having an idea ? Or do i need a third table with the user,user-
> >>mail information...
>
> mails table:
>
> id INT(10) UNSIGNED NOT NULL AUTO_INCREMENT PRIMARY KEY,
> sender_id INT(10) UNSIGNED NOT NULL,
> recipient_id INT(10) UNSIGNED NOT NULL,
> FOREIGN KEY (sender_id) REFERENCES users (id) ON DELETE CASCADE,
> FOREIGN KEY (recipient_id) REFERENCES users (id) ON DELETE CASCADE
>
> User model:
>
> var $hasMany = array(
> 'MailSender' => array (
> 'className' => 'Mail',
> 'foreignKey' => 'sender_id',
> 'dependent' => true
> ),
> 'MailRecipient' => array (
> 'className' => 'Mail',
> 'foreignKey' => 'recipient_id',
> 'dependent' => true
> )
> );
>
> Then you can refer to each model by its alias, MailSender or MailRecipient.
>
> Note that this does not take into account the situation where a mail
> has two or more recipients.
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