protected function CompareDataWithToken::doEvaluate in Rules Token 8

Same name and namespace in other branches

1. 2.x src/Plugin/Condition/CompareDataWithToken.php \Drupal\rules_token\Plugin\Condition\CompareDataWithToken::doEvaluate()
2. 1.x src/Plugin/Condition/CompareDataWithToken.php \Drupal\rules_token\Plugin\Condition\CompareDataWithToken::doEvaluate()

Get values of two tokens and compare it with each other.

Parameters

mixed $data: The data to be compared with $token.

string $operation: Data comparison operation. Typically one of:

• "=="
• "<"
• ">"
• "contains" (for strings or arrays)
• "IN" (for arrays or lists).

string $token: The token to be compared with $data.

mixed $token_entity: The entity from the context used in token.

Return value

bool The evaluation of the condition.

File

src/Plugin/Condition/CompareDataWithToken.php, line 59

Class

CompareDataWithToken

Provides a 'Compare Data with Token' condition.

Namespace

Drupal\rules_token\Plugin\Condition

Code

protected function doEvaluate($data, $operation, $token, $token_entity) {

  // Set flag for removing token from the final text if no replacement value
  // can be generated.
  // For, instance, if a node body is empty then token [node:body] will return
  // '[node:body]' string. Setting 'clear' to TRUE prevents such behaviour.
  $token_options = [
    'clear' => TRUE,
  ];

  // Get the value of the token 1.
  if ($token && $token_entity) {

    // Extract entity name from a token, for instance if token
    // is [node:created] then entity name will be 'node'.
    $entity_name = mb_substr($token, 1, strpos($token, ':') - 1);
    $token_data = [
      $entity_name => $token_entity,
    ];
    $value = \Drupal::token()
      ->replace($token, $token_data, $token_options);
  }
  elseif ($token) {
    $value = \Drupal::token()
      ->replace($token, [], $token_options);
  }

  // The following code is based on the code from the 'DataComparison' action
  // of 'Rules' module.
  $operation = $operation ? strtolower($operation) : '==';
  switch ($operation) {
    case '<':
      return $data < $value;
    case '>':
      return $data > $value;
    case 'contains':
      return is_string($data) && strpos($data, $value) !== FALSE || is_array($data) && in_array($value, $data);
    case 'in':
      return is_array($value) && in_array($data, $value);
    case '==':
    default:

      // In case both values evaluate to FALSE, further differentiate between
      // NULL values and values evaluating to FALSE.
      if (!$data && !$value) {
        return isset($data) && isset($value) || !isset($data) && !isset($value);
      }
      return $data == $value;
  }
}