public function TokenProcessor::process in Rules 8.3

Process the given value.

Parameters

mixed $value: The value to process.

\Drupal\rules\Context\ExecutionStateInterface $rules_state: The current Rules execution state containing all context variables.

Return value

mixed The processed value. Since the value can also be a primitive data type (a string for example) this function must return the value.

Throws

\Drupal\rules\Exception\EvaluationException Thrown when the data cannot be processed.

Overrides DataProcessorInterface::process

File

src/Plugin/RulesDataProcessor/TokenProcessor.php, line 61

Class

TokenProcessor

A data processor for placeholder token replacements.

Namespace

Drupal\rules\Plugin\RulesDataProcessor

Code

public function process($value, ExecutionStateInterface $rules_state) {
  $data = [];
  $placeholders_by_data = $this->placeholderResolver
    ->scan($value);
  foreach ($placeholders_by_data as $variable_name => $placeholders) {

    // Note that accessing an unavailable variable will throw an evaluation
    // exception. That's exactly what needs to happen. Invalid tokens must
    // be detected when checking integrity. The Rule must not be executed
    // if the integrity check fails. Runtime is too late to handle
    // invalid tokens gracefully.
    $data[$variable_name] = $rules_state
      ->getVariable($variable_name);
  }
  return $this->placeholderResolver
    ->replacePlaceHolders($value, $data);
}