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<?php |
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/** |
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* This file was "backported" from symfony/console for compatibility with |
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* Symfony versions < 2.5. |
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* |
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* You can view the license at https://github.com/symfony/symfony/blob/master/LICENSE |
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*/ |
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/* |
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* This file is part of the Symfony package. |
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* |
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* (c) Fabien Potencier <[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 Rj\FrontendBundle\Command\Options\Legacy; |
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use Symfony\Component\Console\Exception\InvalidArgumentException; |
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/** |
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* Represents a choice question. |
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* |
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* @author Fabien Potencier <[email protected]> |
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*/ |
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class ChoiceQuestion extends Question |
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{ |
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private $choices; |
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private $multiselect = false; |
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private $prompt = ' > '; |
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private $errorMessage = 'Value "%s" is invalid'; |
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/** |
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* Constructor. |
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* |
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* @param string $question The question to ask to the user |
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* @param array $choices The list of available choices |
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* @param mixed $default The default answer to return |
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*/ |
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public function __construct($question, array $choices, $default = null) |
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{ |
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parent::__construct($question, $default); |
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$this->choices = $choices; |
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$this->setValidator($this->getDefaultValidator()); |
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$this->setAutocompleterValues($choices); |
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} |
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/** |
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* Returns available choices. |
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* |
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* @return array |
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*/ |
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public function getChoices() |
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{ |
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return $this->choices; |
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} |
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/** |
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* Sets multiselect option. |
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* |
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* When multiselect is set to true, multiple choices can be answered. |
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* |
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* @param bool $multiselect |
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* |
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* @return ChoiceQuestion The current instance |
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*/ |
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public function setMultiselect($multiselect) |
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{ |
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$this->multiselect = $multiselect; |
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$this->setValidator($this->getDefaultValidator()); |
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return $this; |
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} |
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/** |
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* Gets the prompt for choices. |
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* |
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* @return string |
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*/ |
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public function getPrompt() |
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{ |
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return $this->prompt; |
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} |
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/** |
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* Sets the prompt for choices. |
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* |
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* @param string $prompt |
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* |
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* @return ChoiceQuestion The current instance |
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*/ |
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public function setPrompt($prompt) |
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{ |
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$this->prompt = $prompt; |
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return $this; |
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} |
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/** |
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* Sets the error message for invalid values. |
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* |
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* The error message has a string placeholder (%s) for the invalid value. |
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* |
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* @param string $errorMessage |
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* |
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* @return ChoiceQuestion The current instance |
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*/ |
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public function setErrorMessage($errorMessage) |
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{ |
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$this->errorMessage = $errorMessage; |
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$this->setValidator($this->getDefaultValidator()); |
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return $this; |
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} |
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/** |
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* Returns the default answer validator. |
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* |
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* @return callable |
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*/ |
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private function getDefaultValidator() |
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{ |
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$choices = $this->choices; |
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$errorMessage = $this->errorMessage; |
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$multiselect = $this->multiselect; |
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$isAssoc = $this->isAssoc($choices); |
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return function ($selected) use ($choices, $errorMessage, $multiselect, $isAssoc) { |
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// Collapse all spaces. |
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$selectedChoices = str_replace(' ', '', $selected); |
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if ($multiselect) { |
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// Check for a separated comma values |
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if (!preg_match('/^[a-zA-Z0-9_-]+(?:,[a-zA-Z0-9_-]+)*$/', $selectedChoices, $matches)) { |
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throw new InvalidArgumentException(sprintf($errorMessage, $selected)); |
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} |
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$selectedChoices = explode(',', $selectedChoices); |
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} else { |
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$selectedChoices = array($selected); |
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} |
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$multiselectChoices = array(); |
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foreach ($selectedChoices as $value) { |
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$results = array(); |
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foreach ($choices as $key => $choice) { |
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if ($choice === $value) { |
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$results[] = $key; |
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} |
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} |
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if (count($results) > 1) { |
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throw new InvalidArgumentException(sprintf('The provided answer is ambiguous. Value should be one of %s.', implode(' or ', $results))); |
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} |
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$result = array_search($value, $choices); |
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if (!$isAssoc) { |
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if (false !== $result) { |
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$result = $choices[$result]; |
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} elseif (isset($choices[$value])) { |
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$result = $choices[$value]; |
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} |
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} elseif (false === $result && isset($choices[$value])) { |
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$result = $value; |
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} |
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if (false === $result) { |
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throw new InvalidArgumentException(sprintf($errorMessage, $value)); |
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} |
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$multiselectChoices[] = (string) $result; |
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} |
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if ($multiselect) { |
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return $multiselectChoices; |
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} |
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return current($multiselectChoices); |
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}; |
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} |
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} |
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regularjack /
frontend-bundle
