[Solved]How To Modify Assigned Template Vars In Productcontroller Override?

[JuanTomas]

Solution: To retrieve a template variable that has been assigned to smarty in the context, use smarty->getTemplateVars()

 

get_template_vars() is deprecated and unknown.

 

Original question follows:

 

==========================================

 

(Using Prestashop 1.6)

 

ProductControllerCore has this function I want to override:

 

protected function assignAttributesGroups()

    {

        //...do lots and lots of processing, then assign the results to smarty...

        $this->context->smarty->assign(array(
                    'groups' => $groups,
                    'colors' => (count($colors)) ? $colors : false,
                    'combinations' => $combinations,
                    'combinationImages' => $combination_images

            ));

    }

 

Now here's my override:

 

protected function assignAttributesGroups()
    {
        parent::assignAttributesGroups() ;

        // this next line fails with "Call of unknown method"

        $combinations = $this->context->smarty->get_template_vars("combinations") ;

 

        // if I could get the $combinations array, I'd add some custom fields to it, and then...

       
        $this->context->smarty->assign(array(
                'combinations' => $combinations
            ));

    }

 

According to this, get_template_vars() is a legitimate smarty method: http://www.smarty.net/docsv2/en/api.get.template.vars.tpl  But it's unknown here for some reason.

 

My new assignment overrides the one in the parent class.  But that just breaks stuff, because the original contents of the array are lost.  Is there a way for me to get a copy of the $combinations array in this override?

Edited December 11, 2015 by JuanTomas (see edit history)