class DataListCountIs

Provides a 'List count comparison' condition.

@todo Add access callback information from Drupal 7?

Plugin annotation

@Condition(
  id = "rules_list_count_is",
  label = @Translation("List count comparison"),
  category = @Translation("Data"),
  context_definitions = {
    "list" = @ContextDefinition("list",
      label = @Translation("List"),
      description = @Translation("A multi-valued data element to have its count compared, specified by using a data selector, eg 'node.uid.entity.roles'."),
      assignment_restriction = "selector"
    ),
    "operator" = @ContextDefinition("string",
      label = @Translation("Operator"),
      description = @Translation("The comparison operator."),
      options_provider = "\Drupal\rules\TypedData\Options\ComparisonOperatorNumericOptions",
      assignment_restriction = "input",
      default_value = "==",
      required = FALSE
    ),
    "value" = @ContextDefinition("integer",
      label = @Translation("Count"),
      description = @Translation("The count to compare the data count with.")
    ),
  }
)

Hierarchy

• class \Drupal\Component\Plugin\PluginBase extends \Drupal\Component\Plugin\PluginInspectionInterface, \Drupal\Component\Plugin\DerivativeInspectionInterface
  • class \Drupal\Core\Plugin\PluginBase uses \Drupal\Core\StringTranslation\StringTranslationTrait, \Drupal\Core\DependencyInjection\DependencySerializationTrait, \Drupal\Core\Messenger\MessengerTrait implements \Drupal\Component\Plugin\PluginBase
    • class \Drupal\Core\Executable\ExecutablePluginBase extends \Drupal\Core\Executable\ExecutableInterface, \Drupal\Core\Cache\CacheableDependencyInterface, \Drupal\Core\Plugin\ContextAwarePluginInterface uses \Drupal\Core\Plugin\ContextAwarePluginTrait implements \Drupal\Core\Plugin\PluginBase
      • class \Drupal\Core\Condition\ConditionPluginBase extends \Drupal\Core\Condition\ConditionInterface uses \Drupal\Core\Plugin\ContextAwarePluginAssignmentTrait implements \Drupal\Core\Executable\ExecutablePluginBase
        • class \Drupal\rules\Core\RulesConditionBase extends \Drupal\rules\Core\RulesConditionInterface uses \Drupal\rules\Context\ContextProviderTrait, \Drupal\rules\Core\ExecutablePluginTrait, \Drupal\rules\Core\ConfigurationAccessControlTrait implements \Drupal\Core\Condition\ConditionPluginBase
          • class \Drupal\rules\Plugin\Condition\DataListCountIs implements \Drupal\rules\Core\RulesConditionBase

Expanded class hierarchy of DataListCountIs

File

src/Plugin/Condition/DataListCountIs.php, line 37

Namespace

class DataListCountIs extends RulesConditionBase {
  
  /**
   * Compare the value to the count of the list.
   *
   * @param array $list
   *   The list to compare the value to.
   * @param string $operator
   *   The type of comparison to do, may be one of '==', '<', or '>'.
   * @param int $value
   *   The value of that the count is to compare to.
   *
   * @return bool
   *   TRUE if the comparison returns true.
   */
  protected function doEvaluate(array $list, $operator, $value) {
    switch ($operator) {
      case '==':
        return count($list) == $value;
      case '<':
        return count($list) < $value;
      case '<=':
        return count($list) <= $value;
      case '>':
        return count($list) > $value;
      case '>=':
        return count($list) >= $value;
    }
  }

}

Members