cannot use snippets in component form

dawoyan

Hello

I have a component form. I have initiated it in presenter, then put it into template (default.latte) everything works file until I use snippet in template (or even use {block #content})

it throws exception saying Undefined variable: basePath
…\app\components\BaseComponents\BaseForm.php

   $template = $this->getTemplate();
250:            foreach ($this->formatTemplateFiles($file) as $path) {
251:                if (is_file($path)) {
252:                    $template->setFile($path);
253:                    break;
254:                }
255:            }
256:            $template->presenter = $template->_presenter = $this->presenter;
257:            $template->control = $template->_control = $this->parent;
258:            $template->form = $this->name;
259:            $template->render();
260:        }
261:

seems it tries to re-render the global layout in these sections.

what is wrong here?

Vojtěch Dobeš

What does your BaseForm.php inherits from? The best practice is to extend Nette\Application\UI\Control, because it already comes with fully equiped template.

dawoyan

it extends an ExtendedForm which is inherited from Nette\Application\UI\Form.
so the problem is this form's inheritance and not presenters and templates? It is also a clue. Will try finding the problem in ExtendedForm, and will post the result if I find.

thanks for reply

Vojtěch Dobeš

Can I just ask what is the application you are working on? In private way if neccessary :).

Yeah – it is much better to extend UI\Control and define form as its subcomponent via standard createComponentForm factory method. Whole control can have template like {control form} then. Or use manual rendering or whatever. But it will support snippets etc.

This is minimal “BaseForm”, that fully supports snippets:

class BaseFormControl extends UI\Control
{

    protected function template() {}

    public function render()
    {
        $args = func_get_args();
        $path = __DIR__ . '/' . ClassType::from($this)->getShortName() . '.latte';
        if (!is_file($path)) {
            return call_user_func_array(array($this['form'], 'render'), $args);
        }
        $template = $this->template;
        $template->_form = $template->form = $this['form']; // allows snippets anywhere!
        $template->setFile($path); // automatické nastavení šablony
        array_unshift($args, $template);
        call_user_func_array(array($this, 'template'), $args); // inherit and override 'template' to configure it
        $template->render();
    }

}

The algorithm determining the path to template is wrong, but the rest is some useful goods.

dawoyan

this render method seems to be useful, I can overwrite the ExtendedForm's one in this particular case.

thank you very much