Re: Associating model aliases

Try something like this:

$this->Message->find(
'all',
array(
'joins' => array(
array(
'type' => 'LEFT',
'table' => 'users',
'alias' => 'Sender',
'conditions' => array(
'Message.user_id' => 'Sender.id'
)
),
array(
'type' => 'LEFT',
'table' => 'users',
'alias' => 'Recipient',
'conditions' => array(
'Message.recipient_id' => 'Recipient.id'
)
)
)
)
);

You might need to add a couple more arrays to the joins array for the
Profiles. Maybe something like this:

array(
'type' => 'LEFT',
'table' => 'profiles',
'alias' => 'SenderProfile',
'conditions' => array(
'SenderProfile.user_id' => 'Sender.id'
)
),
array(
'type' => 'LEFT',
'table' => 'profiles',
'alias' => 'RecipientProfile',
'conditions' => array(
'RecipientProfile.user_id' => 'Recipient.id'
)
)

On Tue, Sep 29, 2009 at 8:22 AM, Mario <mario.callisto@gmail.com> wrote:
>
> Hi John,
>
> thank you!
> Is just very basic, no control over depth of joins.
>
> <?php
> class MessagesController extends AppController {
>
>  var $name = 'Messages';
>
>  function index() {
>    $this->data = $this->Message->find('all');
>    debug ($this->data);
>    die;
>  }
> ?>
>
> It seems to me that joins are not in place because of somehow missing
> aliases association, not because I have cut them somewhere.
>
> The underlying SQL is:
> SELECT `Message`.`id`, `Message`.`user_id`, `Message`.`recipient_id`,
> [...],
> `Sender`.`id`, `Sender`.`username`, `Sender`.`password`, [...],
> `Recipient`.`id`, `Recipient`.`username`, `Recipient`.`password`,
> [...]
> FROM `messages` AS `Message`
> LEFT JOIN `users` AS `Sender` ON (`Message`.`user_id` = `Sender`.`id`)
> LEFT JOIN `users` AS `Recipient` ON (`Message`.`recipient_id` =
> `Recipient`.`id`)
> WHERE 1 = 1
>
> Best,
>
> Mario
>
>
> On Sep 29, 1:55 pm, John Andersen <j.andersen...@gmail.com> wrote:
>> Thanks, a little more information is needed!
>> Please show the code from the controller, where you are using $this->Message->find.
>>
>> Are you using the Containable behaviour or just the recursive option?
>> Enjoy,
>>    John
>>
>> On Sep 29, 1:43 pm, Mario <mario.calli...@gmail.com> wrote:
>>
>>
>>
>> > Hi John,
>>
>> > thank you for your reply.
>>
>> > As stated, is done exactly as in the Cookbook:
>>
>> > <?php
>> > class Message extends AppModel {
>> >     var $name = 'Message';
>> >     var $belongsTo = array(
>> >         'Sender' => array(
>> >             'className' => 'User',
>> >             'foreignKey' => 'user_id'
>> >         ),
>> >         'Recipient' => array(
>> >             'className' => 'User',
>> >             'foreignKey' => 'recipient_id'
>> >         )
>> >     );}
>>
>> > ?>
>>
>> > <?php
>> > class User extends AppModel {
>> >     var $name = 'User';
>> >     var $hasMany = array(
>> >         'MessageSent' => array(
>> >             'className' => 'Message',
>> >             'foreignKey' => 'user_id'
>> >         ),
>> >         'MessageReceived' => array(
>> >             'className' => 'Message',
>> >             'foreignKey' => 'recipient_id'
>> >         )
>> >     );
>>
>> >     var $hasOne = 'Profile'; // this for the Profile association}
>>
>> > ?>
>>
>> > Best,
>>
>> > Mario
>>
>> > On Sep 29, 12:35 pm, John Andersen <j.andersen...@gmail.com> wrote:
>>
>> > > Please provide information on how you relates the message model with
>> > > the other models?
>> > > Enjoy,
>> > >    John
>>
>> > > On Sep 29, 12:52 pm, Mario <mario.calli...@gmail.com> wrote:
>>
>> > > > Hi all,
>>
>> > > > probably a not so difficult question, but I am a newbie to CakePHP and
>> > > > would really appreciate some advice.
>>
>> > > > I have coded something exactly following the situation described inhttp://book.cakephp.org/view/851/Multiple-relations-to-the-same-model
>> > > > that is: a User model, a Message model, Sender and Recipient aliases.
>> > > > Everything works smoothly.
>>
>> > > > Then I have a Profile model one-to-one associated with User, here as
>> > > > well following the Cookbookhttp://book.cakephp.org/view/80/hasOne
>> > > > <?php
>> > > > class User extends AppModel {
>> > > >     var $name = 'User';
>> > > >     var $hasOne = 'Profile';}
>>
>> > > > ?>
>> > > > andhttp://book.cakephp.org/view/81/belongsTo
>> > > > <?php
>> > > > class Profile extends AppModel {
>> > > >     var $name = 'Profile';
>> > > >     var $belongsTo = 'User';}
>>
>> > > > ?>
>> > > > Relationship working fine except for the following...
>>
>> > > > The problem I have is that $this->Message->find('all') in
>> > > > MessagesController doesn't return the Profile data for the Sender and
>> > > > the Recipient. They are aliases of User, so I can expect that maybe
>> > > > some extra code is needed somewhere.
>>
>> > > > I tried to modify the Profile model into something like:
>> > > >   var $belongsTo = array(
>> > > >     'User',
>> > > >     'Sender' => array(
>> > > >       'className' => 'User',
>> > > >       'foreignKey' => 'user_id'
>> > > >     ),
>> > > >     'Recipient'...
>> > > >   );
>>
>> > > > Doesn't work, half expected it, because it seems more important in
>> > > > this case to declare that the Sender (Recipient) 'hasOne' Profile. But
>> > > > where and how, not having a Sender (Recipient) model?
>>
>> > > > Thank you in advance,
>>
>> > > > Mario
> >
>

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