BS3FormRenderer

BS3FormRenderer.php

<?php

namespace App\Forms;


use Nette\Forms\Controls;
use Nette\Forms\Form;

/**
 * Class BS3FormRenderer
 *
 * @package App\Forms
 */
class BS3FormRenderer
{

	/**
	 * BS3 form renderer. Taken from https://github.com/nette/forms/blob/master/examples/bootstrap3-rendering.php
	 *
	 * @param Form $form
	 * @param int $labelColumns
	 * @param int $controlColumns
	 */
	public static function horizontal(Form $form, $labelColumns = 3, $controlColumns = 9)
	{

		$renderer                                        = $form->getRenderer();
		$renderer->wrappers['controls']['container']     = NULL;
		$renderer->wrappers['pair']['container']         = 'div class=form-group';
		$renderer->wrappers['error']['container']        = NULL;
		$renderer->wrappers['error']['item']             = 'div class="alert alert-danger"';
		$renderer->wrappers['pair']['.error']            = 'has-error';
		$renderer->wrappers['control']['container']      = "div class=col-sm-$controlColumns";
		$renderer->wrappers['label']['container']        = "div class=\"col-sm-$labelColumns control-label\"";
		$renderer->wrappers['control']['description']    = 'span class=help-block';
		$renderer->wrappers['control']['errorcontainer'] = 'span class=help-block';

		$form->getElementPrototype()->class[] = 'form-horizontal';

		self::addInputClasses($form);
	}


	/**
	 * @param \Nette\Forms\Form $form
	 */
	public static function vertical(Form $form)
	{

		$renderer                                        = $form->getRenderer();
		$renderer->wrappers['controls']['container']     = NULL;
		$renderer->wrappers['pair']['container']         = 'div class=form-group';
		$renderer->wrappers['error']['container']        = NULL;
		$renderer->wrappers['error']['item']             = 'div class="alert alert-danger"';
		$renderer->wrappers['pair']['.error']            = 'has-error';
		$renderer->wrappers['control']['container']      = NULL;
		$renderer->wrappers['label']['container']        = NULL;
		$renderer->wrappers['control']['description']    = 'span class=help-block';
		$renderer->wrappers['control']['errorcontainer'] = 'span class=help-block';

		$form->getElementPrototype()->class[] = 'form-horizontal';

		self::addInputClasses($form);
	}


	/**
	 * @param Form $form
	 */
	private static function addInputClasses(Form $form)
	{
		foreach ($form->getControls() as $control) {
			if ($control instanceof Controls\Button) {
				$control->getControlPrototype()->addClass(empty($usedPrimary) ? 'btn btn-success' : 'btn btn-default');
				$usedPrimary = TRUE;
			} elseif ($control instanceof Controls\TextBase || $control instanceof Controls\SelectBox || $control instanceof Controls\MultiSelectBox) {
				$control->getControlPrototype()->addClass('form-control');
			} elseif ($control instanceof Controls\Checkbox || $control instanceof Controls\CheckboxList || $control instanceof Controls\RadioList) {
				$control->getSeparatorPrototype()->setName('div')->addClass($control->getControlPrototype()->type);
			}
		}
	}
}

usage.php

<?php


$form = new Form();
$form->addText(..);
$form->addSubmit(..);

BS3FormRenderer::horizontal($form); // labely vedle inputu 3/9
BS3FormRenderer::horizontal($form,4,9); // labely vedle inputu, 4/8 - víc místa pro labely
BS3FormRenderer::vertical($form); // labely nad inputem

return $form;