public function ConditionExpression::executeWithState in Rules 8.3

Execute the expression with a given Rules state.

Note that this does not auto-save any changes.

Parameters

\Drupal\rules\Context\ExecutionStateInterface $state: The state with all the execution variables in it.

Return value

null|bool The expression may return a boolean value after execution, this is used by conditions that return their evaluation result.

Throws

\Drupal\rules\Exception\EvaluationException Thrown if the Rules expression triggers errors during execution.

Overrides ExpressionInterface::executeWithState

File

src/Plugin/RulesExpression/ConditionExpression.php, line 114

Class

ConditionExpression

Defines an executable condition expression.

Namespace

Drupal\rules\Plugin\RulesExpression

Code

public function executeWithState(ExecutionStateInterface $state) {
  $condition = $this->conditionManager
    ->createInstance($this->configuration['condition_id'], [
    'negate' => $this->configuration['negate'],
  ]);
  $this
    ->prepareContext($condition, $state);
  $result = $condition
    ->evaluate();
  if ($this
    ->isNegated()) {
    $result = !$result;
  }
  $this->rulesDebugLogger
    ->info('The condition %name evaluated to %bool.', [
    '%name' => $this
      ->getLabel(),
    '%bool' => $result ? 'TRUE' : 'FALSE',
    'element' => $this,
  ]);

  // Now that the condition has been executed it can provide additional
  // context which we will have to pass back in the evaluation state.
  $this
    ->addProvidedContext($condition, $state);
  return $result;
}