unbind All associations except some
This is a very handy method ( in your AppModel ).
Many times you have a model that has a lot of associations, and for some stuff, you don’t want the overhead of all the associated data. For that you use $this->recursive = ‘-1′, this turns all associations completly. or you can use calls to unbindModel. but then sometimes, you don’t know what associations the model has ( ie. a piece of code you wrote that is used by other people, a component most likely ).
for that there is unbindAll, this method will shut off all associations except the ones passed in params, usage:
$this->Special->Product->unbindAll(array('belongsTo'=>array('Category','Manufacturer'),'hasMany'=>array('Image')));
Neat eh ? here is the code:
function unbindAll($params = array())
{
foreach($this->__associations as $ass)
{
if(!empty($this->{$ass}))
{
$this->__backAssociation[$ass] = $this->{$ass};
if(isset($params[$ass]))
{
foreach($this->{$ass} as $model => $detail)
{
if(!in_array($model,$params[$ass]))
{
$this->__backAssociation = array_merge($this->__backAssociation, $this->{$ass});
unset($this->{$ass}[$model]);
}
}
}else
{
$this->__backAssociation = array_merge($this->__backAssociation, $this->{$ass});
$this->{$ass} = array();
}
}
}
return true;
}
.
on September 25, 2006 on 2:32 pm
Neat idea. I like it very much :)
on December 18, 2006 on 11:17 am
Something is wrong, or I’am wrong. I try to implement the auth component from http://bakery.cakephp.org/articles/view/148 I use simple User model.
class User extends AppModel
{
var $name = ‘User';
}
Maybe my User model is bad?
Regards
on December 18, 2006 on 1:17 pm
class User extends AppModel
{
var $name = ‘User’;
var $belongsTo = ‘Group';
}
user belongs To group
but this is not related to unbindAll, is it ? ;)
on December 28, 2006 on 2:27 pm
Can anyone explain why we need this code
$this->__backAssociation = array_merge($this->__backAssociation, $this->{$ass});
to be called for every model in the association array? It seems is not changed for every models in the loop and just makes same(redundant) data. Same present in native cake unbindModel.
I mean why we need that besides just this: $this->__backAssociation[$ass] = $this->{$ass};
on May 13, 2007 on 4:50 pm
[…] a little teaser in form of a behavior for Cake 1.2 called ‘Containable’. Essentially it is yet another way to unbind associations from a model recursively on the fly. However, I think it’s more powerful […]
on May 14, 2007 on 4:31 pm
[…] teaser in form of a behavior for Cake 1.2 called ‘Containable’. Essentially it is yet another way to unbind associations from a model recursively on the fly. However, I think it’s more […]
on October 5, 2007 on 9:16 am
@acorus:
The __backAssociation array is used when restoring the default associations after a findAll for example. But yeah, you have a point. Maybe it that in certain circumstances, there are associations in the _backAssociation that are not in __association. In that case, your faster approach would potentially delete associations…I think.
Mind that, I don’t think that the __backAssociation should be accessed since it is private. You probably should collect an array and then call unbindModel instead.
on January 15, 2008 on 12:28 pm
[…] sy menemukan blognya Othy yang membuat sebuah fungsi yang cerdas yaitu fungsi unbindAll. Dengan fungsi unbindAll ini kita […]
on February 5, 2008 on 11:35 am
[…] so what about unbinding associated models ? … well … what I do is that I use the cool unbindAll function by Othman Ouihibi. I’ve been using it since CakePHP 1.1 days. But there’s a […]
on February 6, 2009 on 12:38 pm
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on April 10, 2009 on 3:07 am
Buenas ! seria mucha molestia brindar un poco mas de info sobre este tema ??? esta muy bueno el blog, un saludo y arriba el futbol !
on October 4, 2011 on 9:41 am
okpoip
on August 13, 2012 on 9:55 am
$this->{$tableAlias}->unbindModel(array(
‘hasMany’=>array_keys($this->{$tableAlias}->hasMany),
‘belongsTo’=>array_keys($this->{$tableAlias}->belongsTo)
));
on June 19, 2013 on 10:57 pm
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on August 9, 2014 on 5:30 pm
Ha have a simple snippet:
// in my AppModel function unbindAll() { $relations = array( 'hasOne', 'hasMany', 'belongsTo', 'hasAndBelongsToMany' ); foreach($relations as $relation) { $models = array_keys($this->{$relation}); $this->unbindModel(array($relation => $models)); } }