Example #1
0
 /**
  * Apply rules to src data recursively.
  *
  * @param array $src
  * @param array $rules
  * @param string $prefix
  * @param RuleSet $injectedInstance
  * @return array mixed
  */
 public static function filter($src, $rules, $prefix = null, RuleSet $injectedInstance = null)
 {
     $result = array();
     $ruleSet = $injectedInstance ?: self::instance();
     foreach ($rules as $key => $rule) {
         if (self::has($rule)) {
             if (self::isList($rule)) {
                 if (is_array($src[$key])) {
                     $size = count($src[$key]);
                     if ($rule['max'] && $size > $rule['max']) {
                         $ruleSet->handle($src[$key], self::buildKey($key, $prefix), self::MESSAGE_ARRAY_SIZE_TOO_LARGE);
                     } elseif ($rule['min'] && $size < $rule['min']) {
                         $ruleSet->handle($src[$key], self::buildKey($key, $prefix), self::MESSAGE_ARRAY_SIZE_TOO_SMALL);
                     } else {
                         foreach ($src[$key] as $srcKey => $srcValue) {
                             $result[$key][$srcKey] = self::filter($srcValue, $rule['rules'], self::buildKey($key . "." . $srcKey, $prefix), $injectedInstance);
                         }
                     }
                 } else {
                     if ($rule['min']) {
                         $ruleSet->handle(null, self::buildKey($key, $prefix), self::MESSAGE_ARRAY_IS_INVALID);
                     } else {
                         // skip
                     }
                 }
             } else {
                 if (is_array($src[$key])) {
                     $result[$key] = self::filter($src[$key], $rule['rules'], self::buildKey($key, $prefix), $injectedInstance);
                 } else {
                     if ($rule['required']) {
                         $ruleSet->handle(null, self::buildKey($key, $prefix), self::MESSAGE_ARRAY_IS_INVALID);
                     } else {
                         // skip
                     }
                 }
             }
         } else {
             $objRule = Rule::instance();
             $result[$key] = $objRule->load($rule)->apply($src[$key]);
             if (!Rule::isValid($result[$key])) {
                 // Skip handle if default value is not null.
                 if ($objRule->defaulted(null) !== null) {
                     $result[$key] = $objRule->defaulted(null);
                 } elseif ($objRule->required(null) || strlen(trim($src[$key])) > 0) {
                     $ruleSet->handle($src[$key], self::buildKey($key, $prefix));
                 }
             }
         }
     }
     return $result;
 }