public function RulesConditionalDefaultCase::canEvaluate in Conditional Rules 8

Same name and namespace in other branches

1. 7 includes/rules_conditional.plugin.inc \RulesConditionalDefaultCase::canEvaluate()

Determines whether this branch can be evaluated.

Non-default plugins should override this method.

Overrides RulesConditionalElement::canEvaluate

File

includes/rules_conditional.plugin.inc, line 385

Rules plugin implementation.

Class

RulesConditionalDefaultCase

Switch default case.

Code

public function canEvaluate(RulesState $state) {

  // Check if this element has fallen through.
  if ($previous = $this
    ->getPreviousSibling()) {

    /** @var $previous self */
    if ($previous
      ->fallThrough() && $previous
      ->canEvaluate($state)) {
      return $this
        ->isDefault();
    }
  }
  $siblings = $this
    ->getAllSibling();
  $sibling_can_evaluate = FALSE;
  foreach ($siblings as $sibling) {
    if ($sibling
      ->canEvaluate($state)) {
      $sibling_can_evaluate = TRUE;
    }
  }
  return $sibling_can_evaluate ? FALSE : $this
    ->isDefault();
}