--- /dev/null
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Validator;
+
+use Symfony\Component\Validator\Context\ExecutionContextInterface as ExecutionContextInterface2Dot5;
+use Symfony\Component\Validator\Violation\ConstraintViolationBuilderInterface;
+use Symfony\Component\Validator\Violation\LegacyConstraintViolationBuilder;
+
+/**
+ * Base class for constraint validators.
+ *
+ * @author Bernhard Schussek <bschussek@gmail.com>
+ */
+abstract class ConstraintValidator implements ConstraintValidatorInterface
+{
+ /**
+ * Whether to format {@link \DateTime} objects as RFC-3339 dates
+ * ("Y-m-d H:i:s").
+ *
+ * @var int
+ */
+ const PRETTY_DATE = 1;
+
+ /**
+ * Whether to cast objects with a "__toString()" method to strings.
+ *
+ * @var int
+ */
+ const OBJECT_TO_STRING = 2;
+
+ /**
+ * @var ExecutionContextInterface2Dot5
+ */
+ protected $context;
+
+ /**
+ * {@inheritdoc}
+ */
+ public function initialize(ExecutionContextInterface $context)
+ {
+ $this->context = $context;
+ }
+
+ /**
+ * Wrapper for {@link ExecutionContextInterface::buildViolation} that
+ * supports the 2.4 context API.
+ *
+ * @param string $message The violation message
+ * @param array $parameters The message parameters
+ *
+ * @return ConstraintViolationBuilderInterface The violation builder
+ *
+ * @deprecated since version 2.5, to be removed in 3.0.
+ */
+ protected function buildViolation($message, array $parameters = array())
+ {
+ @trigger_error('The '.__METHOD__.' is deprecated since version 2.5 and will be removed in 3.0.', E_USER_DEPRECATED);
+
+ if ($this->context instanceof ExecutionContextInterface2Dot5) {
+ return $this->context->buildViolation($message, $parameters);
+ }
+
+ return new LegacyConstraintViolationBuilder($this->context, $message, $parameters);
+ }
+
+ /**
+ * Wrapper for {@link ExecutionContextInterface::buildViolation} that
+ * supports the 2.4 context API.
+ *
+ * @param ExecutionContextInterface $context The context to use
+ * @param string $message The violation message
+ * @param array $parameters The message parameters
+ *
+ * @return ConstraintViolationBuilderInterface The violation builder
+ *
+ * @deprecated since version 2.5, to be removed in 3.0.
+ */
+ protected function buildViolationInContext(ExecutionContextInterface $context, $message, array $parameters = array())
+ {
+ @trigger_error('The '.__METHOD__.' is deprecated since version 2.5 and will be removed in 3.0.', E_USER_DEPRECATED);
+
+ if ($context instanceof ExecutionContextInterface2Dot5) {
+ return $context->buildViolation($message, $parameters);
+ }
+
+ return new LegacyConstraintViolationBuilder($context, $message, $parameters);
+ }
+
+ /**
+ * Returns a string representation of the type of the value.
+ *
+ * This method should be used if you pass the type of a value as
+ * message parameter to a constraint violation. Note that such
+ * parameters should usually not be included in messages aimed at
+ * non-technical people.
+ *
+ * @param mixed $value The value to return the type of
+ *
+ * @return string The type of the value
+ */
+ protected function formatTypeOf($value)
+ {
+ return is_object($value) ? get_class($value) : gettype($value);
+ }
+
+ /**
+ * Returns a string representation of the value.
+ *
+ * This method returns the equivalent PHP tokens for most scalar types
+ * (i.e. "false" for false, "1" for 1 etc.). Strings are always wrapped
+ * in double quotes ("). Objects, arrays and resources are formatted as
+ * "object", "array" and "resource". If the $format bitmask contains
+ * the PRETTY_DATE bit, then {@link \DateTime} objects will be formatted
+ * as RFC-3339 dates ("Y-m-d H:i:s").
+ *
+ * Be careful when passing message parameters to a constraint violation
+ * that (may) contain objects, arrays or resources. These parameters
+ * should only be displayed for technical users. Non-technical users
+ * won't know what an "object", "array" or "resource" is and will be
+ * confused by the violation message.
+ *
+ * @param mixed $value The value to format as string
+ * @param int $format A bitwise combination of the format
+ * constants in this class
+ *
+ * @return string The string representation of the passed value
+ */
+ protected function formatValue($value, $format = 0)
+ {
+ $isDateTime = $value instanceof \DateTime || $value instanceof \DateTimeInterface;
+
+ if (($format & self::PRETTY_DATE) && $isDateTime) {
+ if (class_exists('IntlDateFormatter')) {
+ $locale = \Locale::getDefault();
+ $formatter = new \IntlDateFormatter($locale, \IntlDateFormatter::MEDIUM, \IntlDateFormatter::SHORT);
+
+ // neither the native nor the stub IntlDateFormatter support
+ // DateTimeImmutable as of yet
+ if (!$value instanceof \DateTime) {
+ $value = new \DateTime(
+ $value->format('Y-m-d H:i:s.u e'),
+ $value->getTimezone()
+ );
+ }
+
+ return $formatter->format($value);
+ }
+
+ return $value->format('Y-m-d H:i:s');
+ }
+
+ if (is_object($value)) {
+ if (($format & self::OBJECT_TO_STRING) && method_exists($value, '__toString')) {
+ return $value->__toString();
+ }
+
+ return 'object';
+ }
+
+ if (is_array($value)) {
+ return 'array';
+ }
+
+ if (is_string($value)) {
+ return '"'.$value.'"';
+ }
+
+ if (is_resource($value)) {
+ return 'resource';
+ }
+
+ if (null === $value) {
+ return 'null';
+ }
+
+ if (false === $value) {
+ return 'false';
+ }
+
+ if (true === $value) {
+ return 'true';
+ }
+
+ return (string) $value;
+ }
+
+ /**
+ * Returns a string representation of a list of values.
+ *
+ * Each of the values is converted to a string using
+ * {@link formatValue()}. The values are then concatenated with commas.
+ *
+ * @param array $values A list of values
+ * @param int $format A bitwise combination of the format
+ * constants in this class
+ *
+ * @return string The string representation of the value list
+ *
+ * @see formatValue()
+ */
+ protected function formatValues(array $values, $format = 0)
+ {
+ foreach ($values as $key => $value) {
+ $values[$key] = $this->formatValue($value, $format);
+ }
+
+ return implode(', ', $values);
+ }
+}
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