class Equality in Drupal 10

Simple filter to handle equal to / not equal to filters.

Plugin annotation

@ViewsFilter("equality");

Hierarchy

• class \Drupal\views\Plugin\views\filter\FilterPluginBase extends \Drupal\views\Plugin\views\HandlerBase implements CacheableDependencyInterface
  • class \Drupal\views\Plugin\views\filter\Equality

Related topics

Views filter handler plugins

Plugins that handle views filtering.

1 string reference to 'Equality'

views.filter.schema.yml in core/modules/views/config/schema/views.filter.schema.yml

core/modules/views/config/schema/views.filter.schema.yml

File

core/modules/views/src/Plugin/views/filter/Equality.php, line 14

Namespace

Drupal\views\Plugin\views\filter

class Equality extends FilterPluginBase {

  /**
   * Exposed filter options.
   *
   * @var bool
   */
  protected $alwaysMultiple = TRUE;

  /**
   * Provide simple equality operator.
   */
  public function operatorOptions() {
    return [
      '=' => $this
        ->t('Is equal to'),
      '!=' => $this
        ->t('Is not equal to'),
    ];
  }

  /**
   * Provide a simple textfield for equality.
   */
  protected function valueForm(&$form, FormStateInterface $form_state) {
    $form['value'] = [
      '#type' => 'textfield',
      '#title' => $this
        ->t('Value'),
      '#size' => 30,
      '#default_value' => $this->value,
    ];
    if ($form_state
      ->get('exposed')) {
      $identifier = $this->options['expose']['identifier'];
      $user_input = $form_state
        ->getUserInput();
      if (!isset($user_input[$identifier])) {
        $user_input[$identifier] = $this->value;
        $form_state
          ->setUserInput($user_input);
      }
    }
  }

}

Members

Name	Modifiers	Type	Description	Overrides
Equality::$alwaysMultiple	protected	property	Exposed filter options. Overrides FilterPluginBase::$alwaysMultiple
Equality::operatorOptions	public	function	Provide simple equality operator. Overrides FilterPluginBase::operatorOptions
Equality::valueForm	protected	function	Provide a simple textfield for equality. Overrides FilterPluginBase::valueForm
FilterPluginBase::$always_required	public	property	Disable the possibility to allow an exposed input to be optional.
FilterPluginBase::$group_info	public	property	Contains the information of the selected item in a grouped filter.
FilterPluginBase::$no_operator	public	property	Disable the possibility to use operators.	1
FilterPluginBase::$operator	public	property	Contains the operator which is used on the query.
FilterPluginBase::$value	public	property	Contains the actual value of the field,either configured in the views ui or entered in the exposed filters.
FilterPluginBase::acceptExposedInput	public	function	Determines if the input from a filter should change the generated query.	2
FilterPluginBase::addGroupForm	public	function	Add a new group to the exposed filter groups.
FilterPluginBase::adminSummary	public	function	Display the filter on the administrative summary.	9
FilterPluginBase::arrayFilterZero	protected static	function	Filter by no empty values, though allow the use of (string) "0".
FilterPluginBase::buildExposedFiltersGroupForm	protected	function	Build the form to let users create the group of exposed filters.
FilterPluginBase::buildExposedForm	public	function	Render our chunk of the exposed filter form when selecting.
FilterPluginBase::buildExposeForm	public	function	Options form subform for exposed filter options.	4
FilterPluginBase::buildGroupForm	public	function	Displays the Build Group form.
FilterPluginBase::buildGroupOptions	protected	function	Provide default options for exposed filters.
FilterPluginBase::buildGroupSubmit	protected	function	Save new group items, re-enumerates and remove groups marked to delete.
FilterPluginBase::buildGroupValidate	protected	function	Validate the build group options form.
FilterPluginBase::buildOptionsForm	public	function	Provide the basic form which calls through to subforms.	2
FilterPluginBase::buildValueWrapper	protected	function	Builds wrapper for value and operator forms.
FilterPluginBase::canBuildGroup	protected	function	Determine if a filter can be converted into a group.
FilterPluginBase::canExpose	public	function	Determine if a filter can be exposed.	5
FilterPluginBase::canGroup	public	function	Can this filter be used in OR groups?	1
FilterPluginBase::convertExposedInput	public	function	Transform the input from a grouped filter into a standard filter.
FilterPluginBase::defaultExposeOptions	public	function	Provide default options for exposed filters.	3
FilterPluginBase::defineOptions	protected	function		4
FilterPluginBase::exposedInfo	public	function	Tell the renderer about our exposed form. This only needs to be overridden for particularly complex forms. And maybe not even then.
FilterPluginBase::exposedTranslate	protected	function	Make some translations to a form item to make it more suitable to exposing.
FilterPluginBase::getCacheContexts	public	function	The cache contexts associated with this object. Overrides CacheableDependencyInterface::getCacheContexts	6
FilterPluginBase::getCacheMaxAge	public	function	The maximum age for which this object may be cached. Overrides CacheableDependencyInterface::getCacheMaxAge
FilterPluginBase::getCacheTags	public	function	The cache tags associated with this object. Overrides CacheableDependencyInterface::getCacheTags	1
FilterPluginBase::groupForm	public	function	Build a form containing a group of operator | values to apply as a single filter.
FilterPluginBase::groupMultipleExposedInput	public	function	Returns the options available for a grouped filter that users checkboxes as widget, and therefore has to be applied several times, one per item selected.
FilterPluginBase::hasValidGroupedValue	protected	function	Determines if the given grouped filter entry has a valid value.	1
FilterPluginBase::init	public	function	Overrides \Drupal\views\Plugin\views\HandlerBase::init().	2
FilterPluginBase::isAGroup	public	function	Returns TRUE if the exposed filter works like a grouped filter.
FilterPluginBase::multipleExposedInput	public	function	Returns TRUE if users can select multiple groups items of a grouped exposed filter.
FilterPluginBase::operatorForm	protected	function	Options form subform for setting the operator.	5
FilterPluginBase::operatorSubmit	public	function	Perform any necessary changes to the form values prior to storage.
FilterPluginBase::operatorValidate	protected	function	Validate the operator form.
FilterPluginBase::prepareFilterSelectOptions	protected	function	Sanitizes the HTML select element's options.
FilterPluginBase::query	public	function	Add this filter to the query.	13
FilterPluginBase::showBuildGroupButton	protected	function	Shortcut to display the build_group/hide button.
FilterPluginBase::showBuildGroupForm	public	function	Shortcut to display the exposed options form.
FilterPluginBase::showExposeButton	public	function	Shortcut to display the expose/hide button.
FilterPluginBase::showOperatorForm	public	function	Shortcut to display the operator form.
FilterPluginBase::showValueForm	protected	function	Shortcut to display the value form.
FilterPluginBase::storeExposedInput	public	function
FilterPluginBase::storeGroupInput	public	function	If set to remember exposed input in the session, store it there.
FilterPluginBase::submitOptionsForm	public	function	Simple submit handler.
FilterPluginBase::trustedCallbacks	public static	function
FilterPluginBase::validate	public	function		2
FilterPluginBase::validateExposeForm	public	function	Validate the options form.
FilterPluginBase::validateIdentifier	protected	function	Validates a filter identifier.
FilterPluginBase::validateOptionsForm	public	function	Simple validate handler.	1
FilterPluginBase::valueSubmit	protected	function	Perform any necessary changes to the form values prior to storage.	1
FilterPluginBase::valueValidate	protected	function	Validate the options form.	2