Thanks. Saved us.
On Jan 29, 8:25 pm, hamidskey <[EMAIL PROTECTED]> wrote:
> Hello everyone,
>
> I upgraded my cakephp from 1.1.18 to 1.1.19.6305, I did a direct copy
> of cake directory and I found that it causes segmentation fault in my
> apache 2. After searching the entire web I couldn't find any solution
> about it other than the ones which says just get the latest copy and
> it will work. I decided to find a solution for it myself so I looked
> into cakephp's code and I found the problem with model_php5 file.
>
> Here I will try to describe my situation and the (temporary) solution
> that I implemented for myself. Beware that this solution will modify
> the core cakephp model_php5 file so if you don't know what your doing
> then don't touch it. I only did it because my application uses lot of
> auto association and 1.1.18 didn't recursively fetch associations so I
> had to do something about it. I know it is not good to update the core
> files, but I know what is going on in there and I can always reverse
> it once new version of cakephp fixes the problem.
>
> Back to the problem. The problem is caused when you have a self
> referencing Model, cakephp goes into a bad recursion and causes
> segmentation fault.
>
> I have a model as following:
>
> class Category extends AppModel{
> var $name = 'Category';
>
> var $belongsTo = array(
> 'ParentCategory'=>array(
> 'className'=>'Category',
> 'foreignKey'=>'category_id'
> )
> );
>
> }
>
> As soon as cake php reaches this association in the __construct of
> model_php5 it tries to create the associations, instantiate the
> association classes and create their association, because
> ParentCategory is of type Category, it keeps looping in this
> association forever.
>
> The reason that it doesn't stop is because in model_php5's constructor
> at line 311 cakephp puts the alias of the object in the ClassRegistry
> like this:
>
> ClassRegistry::addObject($this->alias, $this);
>
> This is used to check if an object is created later on and it will
> avoid re-creating the object which cause the recursion. the value of
> $this->alias is "ParentCategory". When cakephp reaches line 466 it
> checks if the object is created or not with its class name
> ("category")! which of course never matches because originally the
> object was registered with its alias.
>
> I changed the code in model_php5 at line 466 from this:
>
> if (ClassRegistry::isKeySet($colKey)) {
> $this->{$assoc} = ClassRegistry::getObject($colKey);
> $this->{$className} = $this->{$assoc};
>
> }
>
> to
>
> if (ClassRegistry::isKeySet($colKey) ||
> ClassRegistry::isKeySet($model['alias'])) {
> if( ClassRegistry::isKeySet($colKey))
> $this->{$assoc} = ClassRegistry::getObject($colKey);
> else
> $this->{$assoc} = ClassRegistry::getObject($model['alias']);
> $this->{$className} = $this->{$assoc};
>
> }
>
> and it fixed the problem.
>
> I hope this helps someone.
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