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Custom TYPO3 condition for a configurable date period (with custom Symfony ExpressionLanguage provider)
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| <?php | |
| declare(strict_types=1); | |
| namespace Vendor\Extension\ExpressionLanguage\FunctionsProvider; | |
| use Symfony\Component\ExpressionLanguage\ExpressionFunction; | |
| use Symfony\Component\ExpressionLanguage\ExpressionFunctionProviderInterface; | |
| /** | |
| * ConditionFunctionsProvider | |
| */ | |
| class ConditionFunctionsProvider implements ExpressionFunctionProviderInterface | |
| { | |
| /** | |
| * getFunctions | |
| * | |
| * @return ExpressionFunction[] | |
| */ | |
| public function getFunctions(): array | |
| { | |
| return [ | |
| $this->getInDatePeriodFunction(), | |
| ]; | |
| } | |
| /** | |
| * getInDatePeriodFunction | |
| * | |
| * tx_plugin.settings.vat = 19 | |
| * [inDatePeriod('2020-07-01', '2021-01-01')] | |
| * tx_plugin.settings.vat = 16 | |
| * [END] | |
| * | |
| * @return ExpressionFunction | |
| */ | |
| protected function getInDatePeriodFunction(): ExpressionFunction | |
| { | |
| return new ExpressionFunction('inDatePeriod', static function () { | |
| // Not implemented, we only use the evaluator | |
| }, static function ($existingVariables, $from, $to) { | |
| $result = false; | |
| if (!empty($from) && !empty($to)) { | |
| $now = new \DateTime('now'); | |
| $from = new \DateTime($from); | |
| $to = new \DateTime($to); | |
| if($now > $from->modify('midnight') && $now < $to->modify('midnight')){ | |
| $result = true; | |
| } | |
| } | |
| return $result; | |
| }); | |
| } | |
| } |
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| <?php | |
| // This file needs to be in the Configuration folder of your extension | |
| return [ | |
| 'typoscript' => [ | |
| Vendor\Extension\ExpressionLanguage\TyposcriptConditionProvider::class, | |
| ] | |
| ]; |
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| <?php | |
| declare(strict_types=1); | |
| namespace Vendor\Extension\ExpressionLanguage; | |
| use Vendor\Extension\ExpressionLanguage\FunctionsProvider\ConditionFunctionsProvider; | |
| use TYPO3\CMS\Core\ExpressionLanguage\AbstractProvider; | |
| /** | |
| * TyposcriptConditionProvider | |
| */ | |
| class TyposcriptConditionProvider extends AbstractProvider | |
| { | |
| public function __construct() | |
| { | |
| $this->expressionLanguageProviders = [ | |
| ConditionFunctionsProvider::class, | |
| ]; | |
| } | |
| } |
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