>
> Utilizo: https://github.com/krolow/Attach
> Pero no acabo deenteder muy bien el funccionamiento... el creador me dice 
> que se creea automaticamente un foreign_key 
>  
>
Attach creates the relationship with Attachment dynamically, what this 
means, the type will be used to create one relation.
E.g: In your case
$user = $this->User->find('first');
You will have $user['AttachmentUser'] that has the info from attachments 
table...
This name AttachmentUser is created based in the type of relation that you 
give in the $actsAs...
Attach also provides one helper to display images: *
https://github.com/krolow/Attach/blob/master/View/Helper/AttachHelper.php*<https://github.com/krolow/Attach/blob/master/View/Helper/AttachHelper.php>
So in your controller you can add the helper $helpers = 
array('Attach.Attach');
In your view $this->Attach->image($user['AttachmentUser'], '*size*');
The *size* is in case you have generate thumbnails, you can pass as the 
second argument the thumbnail that you want to use.
For example in the README of project it mentions about a "thumb" so it 
would be $this->Attach->image($user['AttachmentUser'], '*thumb*');
 
 
Si lo vas ha utilizar comentame como te ha ido....
 

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