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abstract class SearchApiViewsHandlerFilterEntity in Search API 7

Views filter handler class for entities.

Should be extended for specific entity types, such as SearchApiViewsHandlerFilterUser and SearchApiViewsHandlerFilterTaxonomyTerm.

Based on views_handler_filter_term_node_tid.

Hierarchy

Expanded class hierarchy of SearchApiViewsHandlerFilterEntity

File

contrib/search_api_views/includes/handler_filter_entity.inc, line 16
Contains SearchApiViewsHandlerFilterEntity.

View source 
abstract class SearchApiViewsHandlerFilterEntity extends SearchApiViewsHandlerFilter {

  /**
   * If exposed form input was successfully validated, the entered entity IDs.
   *
   * @var array
   */
  protected $validated_exposed_input;

  /**
   * Validates entered entity labels and converts them to entity IDs.
   *
   * Since this can come from either the form or the exposed filter, this is
   * abstracted out a bit so it can handle the multiple input sources.
   *
   * @param array $form
   *   The form or form element for which any errors should be set.
   * @param array $values
   *   The entered user names to validate.
   *
   * @return array
   *   The entity IDs corresponding to all entities that could be found.
   */
  protected abstract function validate_entity_strings(array &$form, array $values);

  /**
   * Transforms an array of entity IDs into a comma-separated list of labels.
   *
   * @param array $ids
   *   The entity IDs to transform.
   *
   * @return string
   *   A string containing the labels corresponding to the IDs, separated by
   *   commas.
   */
  protected abstract function ids_to_strings(array $ids);

  /**
   * {@inheritdoc}
   */
  public function operator_options() {
    $operators = array(
      '=' => $this
        ->isMultiValued() ? t('Is one of') : t('Is'),
      'all of' => t('Is all of'),
      '<>' => $this
        ->isMultiValued() ? t('Is not one of') : t('Is not'),
      'empty' => t('Is empty'),
      'not empty' => t('Is not empty'),
    );
    if (!$this
      ->isMultiValued()) {
      unset($operators['all of']);
    }
    return $operators;
  }

  /**
   * {@inheritdoc}
   */
  public function value_form(&$form, &$form_state) {
    parent::value_form($form, $form_state);
    if (!is_array($this->value)) {
      $this->value = $this->value ? array(
        $this->value,
      ) : array();
    }

    // Set the correct default value in case the admin-set value is used (and a
    // value is present). The value is used if the form is either not exposed,
    // or the exposed form wasn't submitted yet. (There doesn't seem to be an
    // easier way to check for that.)
    if ($this->value && (empty($form_state['input']) || !empty($form_state['input']['live_preview']))) {
      $form['value']['#default_value'] = $this
        ->ids_to_strings($this->value);
    }
  }

  /**
   * {@inheritdoc}
   */
  public function value_validate($form, &$form_state) {
    if (!empty($form['value'])) {
      $value =& $form_state['values']['options']['value'];
      if (strlen($value)) {
        $values = $this
          ->isMultiValued($form_state['values']['options']) ? drupal_explode_tags($value) : array(
          $value,
        );
        $ids = $this
          ->validate_entity_strings($form['value'], $values);
        if ($ids) {
          $value = $ids;
        }
      }
    }
  }

  /**
   * {@inheritdoc}
   */
  public function accept_exposed_input($input) {
    $rc = parent::accept_exposed_input($input);
    if ($rc) {

      // If we have previously validated input, override.
      if ($this->validated_exposed_input) {
        $this->value = $this->validated_exposed_input;
      }
    }
    return $rc;
  }

  /**
   * {@inheritdoc}
   */
  public function exposed_validate(&$form, &$form_state) {
    if (empty($this->options['exposed']) || empty($this->options['expose']['identifier'])) {
      return;
    }
    $this->validated_exposed_input = FALSE;
    $identifier = $this->options['expose']['identifier'];
    $input = $form_state['values'][$identifier];
    if ($this->options['is_grouped'] && isset($this->options['group_info']['group_items'][$input])) {
      $this->operator = $this->options['group_info']['group_items'][$input]['operator'];
      $input = $this->options['group_info']['group_items'][$input]['value'];
    }
    if (!strlen($input)) {
      return;
    }
    $values = $this
      ->isMultiValued() ? drupal_explode_tags($input) : array(
      $input,
    );
    if (!$this->options['is_grouped'] || $this->options['is_grouped'] && $input != 'All') {
      $this->validated_exposed_input = $this
        ->validate_entity_strings($form[$identifier], $values);
    }
  }

  /**
   * Determines whether multiple user names can be entered into this filter.
   *
   * This is either the case if the form isn't exposed, or if the " Allow
   * multiple selections" option is enabled.
   *
   * @param array $options
   *   (optional) The options array to use. If not supplied, the options set on
   *   this filter will be used.
   *
   * @return bool
   *   TRUE if multiple values can be entered for this filter, FALSE otherwise.
   */
  protected function isMultiValued(array $options = array()) {
    $options = $options ? $options : $this->options;
    return empty($options['exposed']) || !empty($options['expose']['multiple']);
  }

  /**
   * {@inheritdoc}
   */
  public function admin_summary() {
    if (!is_array($this->value)) {
      $this->value = $this->value ? array(
        $this->value,
      ) : array();
    }
    $value = $this->value;
    $this->value = empty($value) ? '' : $this
      ->ids_to_strings($value);
    $ret = parent::admin_summary();
    $this->value = $value;
    return $ret;
  }

  /**
   * {@inheritdoc}
   */
  public function query() {
    if ($this->operator === 'empty') {
      $this->query
        ->condition($this->real_field, NULL, '=', $this->options['group']);
    }
    elseif ($this->operator === 'not empty') {
      $this->query
        ->condition($this->real_field, NULL, '<>', $this->options['group']);
    }
    elseif (is_array($this->value)) {
      $all_of = $this->operator === 'all of';
      $operator = $all_of ? '=' : $this->operator;
      if (count($this->value) == 1) {
        $this->query
          ->condition($this->real_field, reset($this->value), $operator, $this->options['group']);
      }
      else {
        $filter = $this->query
          ->createFilter($operator === '<>' || $all_of ? 'AND' : 'OR');
        foreach ($this->value as $value) {
          $filter
            ->condition($this->real_field, $value, $operator);
        }
        $this->query
          ->filter($filter, $this->options['group']);
      }
    }
  }

}

Members

Namesort descending Modifiers Type Description Overrides
SearchApiViewsHandlerFilter::$operator public property The operator used for filtering. Overrides views_handler_filter::$operator
SearchApiViewsHandlerFilter::$query public property The associated views query object. Overrides views_handler::$query 4
SearchApiViewsHandlerFilter::$value public property The value to filter for. Overrides views_handler_filter::$value
SearchApiViewsHandlerFilterEntity::$validated_exposed_input protected property If exposed form input was successfully validated, the entered entity IDs.
SearchApiViewsHandlerFilterEntity::accept_exposed_input public function Check to see if input from the exposed filters should change the behavior. Overrides views_handler_filter::accept_exposed_input 1
SearchApiViewsHandlerFilterEntity::admin_summary public function Display the filter on the administrative summary Overrides SearchApiViewsHandlerFilter::admin_summary
SearchApiViewsHandlerFilterEntity::exposed_validate public function Validate the exposed handler form. Overrides views_handler::exposed_validate 1
SearchApiViewsHandlerFilterEntity::ids_to_strings abstract protected function Transforms an array of entity IDs into a comma-separated list of labels. 2
SearchApiViewsHandlerFilterEntity::isMultiValued protected function Determines whether multiple user names can be entered into this filter.
SearchApiViewsHandlerFilterEntity::operator_options public function Provide a list of options for the operator form. Overrides SearchApiViewsHandlerFilter::operator_options
SearchApiViewsHandlerFilterEntity::query public function Add this filter to the query. Overrides SearchApiViewsHandlerFilter::query
SearchApiViewsHandlerFilterEntity::validate_entity_strings abstract protected function Validates entered entity labels and converts them to entity IDs. 2
SearchApiViewsHandlerFilterEntity::value_form public function Provide a form for setting the filter value. Overrides SearchApiViewsHandlerFilter::value_form 2
SearchApiViewsHandlerFilterEntity::value_validate public function Validate the options form. Overrides views_handler_filter::value_validate 1
views_handler::$handler_type public property The type of the handler, for example filter/footer/field.
views_handler::$real_field public property The actual field in the database table, maybe different on other kind of query plugins/special handlers.
views_handler::$relationship public property The relationship used for this field.
views_handler::$table_alias public property The alias of the table of this handler which is used in the query.
views_handler::$view public property The top object of a view. Overrides views_object::$view
views_handler::access public function Check whether current user has access to this handler. 10
views_handler::broken public function Determine if the handler is considered 'broken'. 6
views_handler::case_transform public function Transform a string by a certain method.
views_handler::ensure_my_table public function Ensure the main table for this handler is in the query. This is used a lot. 8
views_handler::exposed_submit public function Submit the exposed handler form.
views_handler::expose_submit public function Perform any necessary changes to the form exposes prior to storage. There is no need for this function to actually store the data.
views_handler::extra_options public function Provide defaults for the handler.
views_handler::extra_options_form public function Provide a form for setting options. 1
views_handler::extra_options_submit public function Perform any necessary changes to the form values prior to storage. There is no need for this function to actually store the data.
views_handler::extra_options_validate public function Validate the options form.
views_handler::get_field public function Shortcut to get a handler's raw field value.
views_handler::get_join public function Get the join object that should be used for this handler.
views_handler::groupby_form public function Provide a form for aggregation settings. 1
views_handler::groupby_form_submit public function Perform any necessary changes to the form values prior to storage. There is no need for this function to actually store the data. 1
views_handler::has_extra_options public function If a handler has 'extra options' it will get a little settings widget and another form called extra_options. 1
views_handler::is_exposed public function Determine if this item is 'exposed', meaning it provides form elements to let users modify the view.
views_handler::needs_style_plugin public function Determine if the argument needs a style plugin. 1
views_handler::placeholder public function Provides a unique placeholders for handlers.
views_handler::post_execute public function Run after the view is executed, before the result is cached. 1
views_handler::pre_query public function Run before the view is built. 1
views_handler::sanitize_value public function Sanitize the value for output.
views_handler::set_relationship public function Called just prior to query(), this lets a handler set up any relationship it needs.
views_handler::show_expose_form public function Shortcut to display the exposed options form.
views_handler::ui_name public function Return a string representing this handler's name in the UI. 9
views_handler::use_group_by public function Provides the handler some groupby. 2
views_handler::validate public function Validates the handler against the complete View. 1
views_handler_filter::$always_multiple public property Disable the possibility to force a single value. 6
views_handler_filter::$always_required public property Disable the possibility to allow a exposed input to be optional.
views_handler_filter::$group_info public property Contains the information of the selected item in a gruped filter.
views_handler_filter::$no_operator public property Disable the possibility to use operators. 2
views_handler_filter::build_group_form public function Build the form to let users create the group of exposed filters.
views_handler_filter::build_group_options public function Provide default options for exposed filters.
views_handler_filter::build_group_submit public function Save new group items, re-enumerates and remove groups marked to delete.
views_handler_filter::build_group_validate public function Validate the build group options form. 1
views_handler_filter::can_build_group public function Determine if a filter can be converted into a group.
views_handler_filter::can_expose public function Determine if a filter can be exposed. Overrides views_handler::can_expose 5
views_handler_filter::can_group public function Can this filter be used in OR groups? 1
views_handler_filter::convert_exposed_input public function Transform the input from a grouped filter into a standard filter.
views_handler_filter::exposed_form public function Render our chunk of the exposed filter form when selecting. Overrides views_handler::exposed_form
views_handler_filter::exposed_info public function Tell the renderer about our exposed form. Overrides views_handler::exposed_info
views_handler_filter::exposed_translate public function Make some translations to a form item to make it more suitable to exposing.
views_handler_filter::expose_form public function Options form subform for exposed filter options. Overrides views_handler::expose_form 2
views_handler_filter::expose_options public function Provide default options for exposed filters. Overrides views_handler::expose_options 2
views_handler_filter::expose_validate public function Validate the options form. Overrides views_handler::expose_validate
views_handler_filter::group_form public function Build a form with a group of operator | values to apply as a single filter.
views_handler_filter::group_multiple_exposed_input public function Options available for a grouped filter which uses checkboxes.
views_handler_filter::init public function Provide some extra help to get the operator/value easier to use. Overrides views_handler::init 2
views_handler_filter::is_a_group public function Returns TRUE if the exposed filter works like a grouped filter. Overrides views_handler::is_a_group
views_handler_filter::multiple_exposed_input public function Indicate whether users can select multiple group items. Overrides views_handler::multiple_exposed_input
views_handler_filter::operator_form public function Options form subform for setting the operator. 6
views_handler_filter::operator_submit public function Perform any necessary changes to the form values prior to storage.
views_handler_filter::operator_validate public function Validate the operator form.
views_handler_filter::options_form public function Provide the basic form which calls through to subforms. Overrides views_handler::options_form 4
views_handler_filter::options_submit public function Simple submit handler. Overrides views_handler::options_submit
views_handler_filter::options_validate public function Simple validate handler. Overrides views_handler::options_validate 1
views_handler_filter::option_definition public function Information about options for all kinds of purposes will be held here. Overrides views_handler::option_definition 7
views_handler_filter::prepare_filter_select_options public function Sanitizes the HTML select element's options.
views_handler_filter::show_build_group_button public function Shortcut to display the build_group/hide button.
views_handler_filter::show_build_group_form public function Shortcut to display the exposed options form.
views_handler_filter::show_expose_button public function Shortcut to display the expose/hide button. Overrides views_handler::show_expose_button
views_handler_filter::show_operator_form public function Shortcut to display the operator form.
views_handler_filter::show_value_form public function Shortcut to display the value form.
views_handler_filter::store_exposed_input public function Store the exposed input for processing later. Overrides views_handler::store_exposed_input
views_handler_filter::store_group_input public function If set to remember exposed input in the session, store it there.
views_handler_filter::value_submit public function Perform any necessary changes to the form values prior to storage. 1
views_object::$definition public property Handler's definition.
views_object::$options public property Except for displays, options for the object will be held here. 1
views_object::altered_option_definition function Collect this handler's option definition and alter them, ready for use.
views_object::construct public function Views handlers use a special construct function. 4
views_object::destroy public function Destructor. 2
views_object::export_option public function 1
views_object::export_options public function
views_object::export_option_always public function Always exports the option, regardless of the default value.
views_object::options Deprecated public function Set default options on this object. 1
views_object::set_default_options public function Set default options.
views_object::set_definition public function Let the handler know what its full definition is.
views_object::unpack_options public function Unpack options over our existing defaults, drilling down into arrays so that defaults don't get totally blown away.
views_object::unpack_translatable public function Unpack a single option definition.
views_object::unpack_translatables public function Unpacks each handler to store translatable texts.
views_object::_set_option_defaults public function