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<?php |
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/* |
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* This file is part of the TheAlternativeZurich/events project. |
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* |
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* (c) Florian Moser <[email protected]> |
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* |
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* For the full copyright and license information, please view the LICENSE |
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* file that was distributed with this source code. |
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*/ |
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namespace App\Extension; |
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use App\Enum\BooleanType; |
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use App\Helper\DateTimeFormatter; |
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use DateTime; |
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use Symfony\Contracts\Translation\TranslatorInterface; |
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use Twig\Environment; |
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use Twig\Extension\AbstractExtension; |
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use Twig\TwigFilter; |
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class MyTwigExtension extends AbstractExtension |
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{ |
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private $translator; |
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public function __construct(TranslatorInterface $translator) |
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{ |
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$this->translator = $translator; |
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} |
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/** |
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* makes the filters available to twig. |
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* |
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* @return array |
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*/ |
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public function getFilters() |
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{ |
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return [ |
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new TwigFilter('dateFormat', [$this, 'dateFormatFilter']), |
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new TwigFilter('dateTimeFormat', [$this, 'dateTimeFormatFilter']), |
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new TwigFilter('booleanFormat', [$this, 'booleanFilter']), |
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new TwigFilter('camelCaseToUnderscore', [$this, 'camelCaseToUnderscoreFilter']), |
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new TwigFilter('truncate', [$this, 'truncateFilter'], ['needs_environment' => true]), |
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]; |
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} |
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/** |
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* @param string $propertyName |
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* |
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* @return string |
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*/ |
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public function camelCaseToUnderscoreFilter($propertyName) |
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{ |
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return mb_strtolower(preg_replace('/(?<=[a-z])([A-Z])/', '_$1', $propertyName)); |
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} |
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/** |
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* @param DateTime|null $date |
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* |
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* @return string |
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*/ |
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public function dateFormatFilter($date) |
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{ |
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if ($date instanceof DateTime) { |
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return $date->format(DateTimeFormatter::DATE_FORMAT); |
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} |
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return '-'; |
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} |
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/** |
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* @param DateTime|null $date |
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* |
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* @return string |
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*/ |
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public function dateTimeFormatFilter($date) |
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{ |
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if ($date instanceof DateTime) { |
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return $date->format(DateTimeFormatter::DATE_TIME_FORMAT); |
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} |
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return '-'; |
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} |
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/** |
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* @param $value |
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* |
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* @return string |
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*/ |
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public function booleanFilter($value) |
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{ |
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if ($value) { |
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return BooleanType::getTranslationForValue(BooleanType::YES, $this->translator); |
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} |
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return BooleanType::getTranslationForValue(BooleanType::NO, $this->translator); |
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} |
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/** |
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* @source https://github.com/twigphp/Twig-extensions/blob/master/src/TextExtension.php |
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*/ |
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public function truncateFilter(Environment $env, $value, $length = 30, $preserve = false, $separator = '...') |
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{ |
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if (mb_strlen($value, $env->getCharset()) > $length) { |
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if ($preserve) { |
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// If breakpoint is on the last word, return the value without separator. |
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if (false === ($breakpoint = mb_strpos($value, ' ', $length, $env->getCharset()))) { |
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return $value; |
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} |
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$length = $breakpoint; |
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} |
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return rtrim(mb_substr($value, 0, $length, $env->getCharset())).$separator; |
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} |
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return $value; |
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} |
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} |
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TheAlternativeZurich /
events
