Template is not receiving variables when a module is overrided

[pabloMarch]

Hello, I'm overriding one module but smarty is not receiving the variables sent from renderWidget of the parent class, this code shows an example on one the Ps_Languageselector module:

path: override\modules\ps_languageselector\ps_languageselector.php

<?php

use PrestaShop\PrestaShop\Core\Module\WidgetInterface;

class Ps_LanguageselectorOverride extends Ps_Languageselector implements WidgetInterface
{

  // is this necessary?
  public function install()
  {
      // testing a module override on 'custom?' hook:
      return (parent::install() && $this->registerHook('displayFooterAfter'));
  }

  public function hookDisplayFooterAfter($params)
  {
    // return parent::renderWidget();
    return $this->display(__FILE__, 'ps_languageselector.tpl');
  }

}

And this is my module.tpl:

path: themes\mytheme\modules\ps_languageselector\ps_languageselector.tpl

 {* variable not passed is $languages *}
 <div id="mod-ps-languageselector">
  <h4>{l s='Language:' d='Shop.Theme.Global'}</h4>
  {if isset($languages)}
    {foreach from=$languages item=language}
      {assign isActive $language.id_lang == $current_language.id_lang}
      <a href="{url entity='language' id=$language.id_lang}">
        <img src="/img/l/{$language.id_lang}.jpg" class="{if isActive}active{/if}" alt="{$language.iso_code}" />
      </a>
    {/foreach}
  {/if}
</div>

help will be appreciate, I'll be posting any solution found. If helps this is the parent class:

https://github.com/PrestaShop/ps_languageselector/blob/1fa02ff042034e1322b3eef2e923eaea8c58f3d6/ps_languageselector.php

 

Edited April 3, 2018 by pabloMarch (see edit history)

[pabloMarch]

I found a solution for this, exist one method of the 'WidgetInterface' called 'getWidgetVariables', you must send the variables throw this method in the example module I'm using, like this:

<?php

use PrestaShop\PrestaShop\Core\Module\WidgetInterface;

if (!defined('_PS_VERSION_'))
	exit;

class Ps_LanguageselectorOverride extends Ps_Languageselector implements WidgetInterface
{

  // is this necessary?
  public function install()
  {
      // testing a module override on 'custom?' hook:
      if (!parent::install() ||!$this->registerHook('displayFooterAfter'))
        return false;
      return true;
  }

  public function hookDisplayFooterAfter($params)
  {
    if (!$this->active)
			return;

    // sent this array to smarty: array('languages' => $languages, 'current_language' => $current)
    $this->smarty->assign(parent::getWidgetVariables('displayFooterAfter'));
    return $this->display(__FILE__, 'ps_languageselector.tpl');
  }

}

Recommend you to read this post about how to:

http://build.prestashop.com/howtos/module/how-to-override-modules/

 

[tantan199]

Use the following function:

public function hookDisplayFooterAfter($params)
{
    $languages = Language::getLanguages(true, $this->context->shop->id);
    if (1 < count($languages)) {
            $this->smarty->assign($this->getWidgetVariables());
            $this->display(__FILE__, 'ps_languageselector.tpl');
    }
    return false;
}

Edited April 4, 2018 by tantan199 (see edit history)

[pabloMarch]

1 hour ago, tantan199 said:

Use the following function:

public function hookDisplayFooterAfter($params)
{
    $languages = Language::getLanguages(true, $this->context->shop->id);
    if (1 < count($languages)) {
            $this->smarty->assign($this->getWidgetVariables());
            $this->display(__FILE__, 'ps_languageselector.tpl');
    }
    return false;
}

appreciate it, thanks

[tantan199]

You are welcome.