annotate core/lib/Drupal/Core/Condition/ConditionAccessResolverTrait.php @ 19:fa3358dc1485 tip

Add ndrum files
author Chris Cannam
date Wed, 28 Aug 2019 13:14:47 +0100
parents 4c8ae668cc8c
children
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Chris@0 1 <?php
Chris@0 2
Chris@0 3 namespace Drupal\Core\Condition;
Chris@0 4
Chris@0 5 use Drupal\Component\Plugin\Exception\ContextException;
Chris@0 6
Chris@0 7 /**
Chris@0 8 * Resolves a set of conditions.
Chris@0 9 */
Chris@0 10 trait ConditionAccessResolverTrait {
Chris@0 11
Chris@0 12 /**
Chris@0 13 * Resolves the given conditions based on the condition logic ('and'/'or').
Chris@0 14 *
Chris@0 15 * @param \Drupal\Core\Condition\ConditionInterface[] $conditions
Chris@0 16 * A set of conditions.
Chris@0 17 * @param string $condition_logic
Chris@0 18 * The logic used to compute access, either 'and' or 'or'.
Chris@0 19 *
Chris@0 20 * @return bool
Chris@0 21 * Whether these conditions grant or deny access.
Chris@0 22 */
Chris@0 23 protected function resolveConditions($conditions, $condition_logic) {
Chris@0 24 foreach ($conditions as $condition) {
Chris@0 25 try {
Chris@0 26 $pass = $condition->execute();
Chris@0 27 }
Chris@0 28 catch (ContextException $e) {
Chris@0 29 // If a condition is missing context and is not negated, consider that a
Chris@0 30 // fail.
Chris@0 31 $pass = $condition->isNegated();
Chris@0 32 }
Chris@0 33
Chris@0 34 // If a condition fails and all conditions were needed, deny access.
Chris@0 35 if (!$pass && $condition_logic == 'and') {
Chris@0 36 return FALSE;
Chris@0 37 }
Chris@0 38 // If a condition passes and only one condition was needed, grant access.
Chris@0 39 elseif ($pass && $condition_logic == 'or') {
Chris@0 40 return TRUE;
Chris@0 41 }
Chris@0 42 }
Chris@0 43
Chris@0 44 // Return TRUE if logic was 'and', meaning all rules passed.
Chris@0 45 // Return FALSE if logic was 'or', meaning no rule passed.
Chris@0 46 return $condition_logic == 'and';
Chris@0 47 }
Chris@0 48
Chris@0 49 }