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class entity_views_handler_field_entity in Entity API 7

A handler to provide proper displays for entities retrieved via data selection.

This handler may only be used in conjunction with data selection based Views tables or other base tables using a query plugin that supports data selection.

Hierarchy

Expanded class hierarchy of entity_views_handler_field_entity

See also

entity_views_field_definition()

2 string references to 'entity_views_handler_field_entity'
entity_views_data in views/entity.views.inc
Implements hook_views_data().
entity_views_get_field_handlers in views/entity.views.inc

File

views/handlers/entity_views_handler_field_entity.inc, line 19
Contains the entity_views_handler_field_entity class.

View source 
class entity_views_handler_field_entity extends views_handler_field {

  /**
   * Stores the entity type of the result entities.
   */
  public $entity_type;

  /**
   * Stores the result entities' metadata wrappers.
   */
  public $wrappers = array();

  /**
   * The entity type of the entity displayed by this field.
   */
  public $field_entity_type;

  /**
   * Stores the current value when rendering list fields.
   */
  public $current_value;

  /**
   * Initialize the entity type with the field's entity type.
   */
  public function init(&$view, &$options) {
    parent::init($view, $options);
    $this->field_entity_type = entity_property_extract_innermost_type($this->definition['type']);
  }

  /**
   * Overridden to add the field for the entity ID (if necessary).
   */
  public function query() {
    EntityFieldHandlerHelper::query($this);
  }

  /**
   * Adds a click-sort to the query.
   */
  public function click_sort($order) {
    EntityFieldHandlerHelper::click_sort($this, $order);
  }

  /**
   * Load the entities for all rows that are about to be displayed.
   */
  public function pre_render(&$values) {
    EntityFieldHandlerHelper::pre_render($this, $values);
  }

  /**
   * Overridden to use a metadata wrapper.
   */
  public function get_value($values, $field = NULL) {
    return EntityFieldHandlerHelper::get_value($this, $values, $field);
  }
  public function option_definition() {
    $options = parent::option_definition();
    $options += EntityFieldHandlerHelper::option_definition($this);
    $options['display'] = array(
      'default' => 'label',
    );
    $options['link_to_entity']['default'] = TRUE;
    $options['view_mode'] = array(
      'default' => 'default',
    );
    $options['bypass_access'] = array(
      'default' => FALSE,
    );
    return $options;
  }
  public function options_form(&$form, &$form_state) {
    parent::options_form($form, $form_state);
    EntityFieldHandlerHelper::options_form($this, $form, $form_state);

    // We want a different form field at a different place.
    unset($form['link_to_entity']);
    $options = array(
      'label' => t('Show entity label'),
      'id' => t('Show entity ID'),
      'view' => t('Show complete entity'),
    );
    $form['display'] = array(
      '#type' => 'select',
      '#title' => t('Display'),
      '#description' => t('Decide how this field will be displayed.'),
      '#options' => $options,
      '#default_value' => $this->options['display'],
    );
    $form['link_to_entity'] = array(
      '#type' => 'checkbox',
      '#title' => t('Link to entity'),
      '#description' => t('Link this field to the entity.'),
      '#default_value' => $this->options['link_to_entity'],
      '#dependency' => array(
        'edit-options-display' => array(
          'label',
          'id',
        ),
      ),
    );

    // Stolen from entity_views_plugin_row_entity_view.
    $entity_info = entity_get_info($this->field_entity_type);
    $options = array();
    if (!empty($entity_info['view modes'])) {
      foreach ($entity_info['view modes'] as $mode => $settings) {
        $options[$mode] = $settings['label'];
      }
    }
    if (count($options) > 1) {
      $form['view_mode'] = array(
        '#type' => 'select',
        '#options' => $options,
        '#title' => t('View mode'),
        '#default_value' => $this->options['view_mode'],
        '#dependency' => array(
          'edit-options-display' => array(
            'view',
          ),
        ),
      );
    }
    else {
      $form['view_mode'] = array(
        '#type' => 'value',
        '#value' => $options ? key($options) : 'default',
      );
    }
    $form['bypass_access'] = array(
      '#type' => 'checkbox',
      '#title' => t('Bypass access checks'),
      '#description' => t('If enabled, access permissions for rendering the entity are not checked.'),
      '#default_value' => !empty($this->options['bypass_access']),
    );
  }
  public function render($values) {
    return EntityFieldHandlerHelper::render($this, $values);
  }

  /**
   * Render a value as a link to the entity if applicable.
   *
   * @param $value
   *   The value to render.
   * @param $values
   *   The values for the current row retrieved from the Views query, as an
   *   object.
   */
  public function render_entity_link($entity, $values) {
    $type = $this->field_entity_type;
    if (!is_object($entity) && isset($entity) && $entity !== FALSE) {
      $entity = entity_load_single($type, $entity);
    }
    if (!$entity) {
      return '';
    }
    $render = $this
      ->render_single_value($entity, $values);
    if (!$this->options['link_to_entity'] || $this->options['display'] == 'view') {
      return $render;
    }
    if (is_object($entity) && ($url = entity_uri($type, $entity))) {
      return l($render, $url['path'], array(
        'html' => TRUE,
      ) + $url['options']);
    }
    return $render;
  }

  /**
   * Render a single field value.
   */
  public function render_single_value($entity, $values) {
    $type = $this->field_entity_type;
    if (!is_object($entity) && isset($entity) && $entity !== FALSE) {
      $entity = entity_load_single($type, $entity);
    }

    // Make sure the entity exists and access is either given or bypassed.
    if (!$entity || !(!empty($this->options['bypass_access']) || entity_access('view', $type, $entity))) {
      return '';
    }
    if ($this->options['display'] === 'view') {
      $entity_view = entity_view($type, array(
        $entity,
      ), $this->options['view_mode']);
      return render($entity_view);
    }
    if ($this->options['display'] == 'label') {
      $value = entity_label($type, $entity);
    }

    // Either $options[display] == 'id', or we have no label.
    if (empty($value)) {
      $value = entity_id($type, $entity);
    }
    $value = $this
      ->sanitize_value($value);
    return $value;
  }

}

Members

Namesort descending Modifiers Type Description Overrides
entity_views_handler_field_entity::$current_value public property Stores the current value when rendering list fields.
entity_views_handler_field_entity::$entity_type public property Stores the entity type of the result entities.
entity_views_handler_field_entity::$field_entity_type public property The entity type of the entity displayed by this field.
entity_views_handler_field_entity::$wrappers public property Stores the result entities' metadata wrappers.
entity_views_handler_field_entity::click_sort public function Adds a click-sort to the query. Overrides views_handler_field::click_sort
entity_views_handler_field_entity::get_value public function Overridden to use a metadata wrapper. Overrides views_handler_field::get_value
entity_views_handler_field_entity::init public function Initialize the entity type with the field's entity type. Overrides views_handler_field::init
entity_views_handler_field_entity::options_form public function Default options form provides the label widget that all fields should have. Overrides views_handler_field::options_form
entity_views_handler_field_entity::option_definition public function Information about options for all kinds of purposes will be held here. Overrides views_handler_field::option_definition
entity_views_handler_field_entity::pre_render public function Load the entities for all rows that are about to be displayed. Overrides views_handler_field::pre_render
entity_views_handler_field_entity::query public function Overridden to add the field for the entity ID (if necessary). Overrides views_handler_field::query
entity_views_handler_field_entity::render public function Render the field. Overrides views_handler_field::render
entity_views_handler_field_entity::render_entity_link public function Render a value as a link to the entity if applicable.
entity_views_handler_field_entity::render_single_value public function Render a single field value.
views_handler::$handler_type public property The type of the handler, for example filter/footer/field.
views_handler::$query public property Where the $query object will reside:. 1
views_handler::$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::accept_exposed_input public function Take input from exposed handlers and assign to this handler, if necessary. 1
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::can_expose public function Determine if a handler can be exposed. 2
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_form public function Render our chunk of the exposed handler form when selecting. 1
views_handler::exposed_info public function Get information about the exposed form for the form renderer. 1
views_handler::exposed_submit public function Submit the exposed handler form.
views_handler::exposed_validate public function Validate the exposed handler form. 4
views_handler::expose_form public function Form for exposed handler options. 2
views_handler::expose_options public function Set new exposed option defaults when exposed setting is flipped on. 2
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::expose_validate public function Validate the options form. 1
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_a_group public function Returns TRUE if the exposed filter works like a grouped filter. 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::multiple_exposed_input public function Define if the exposed input has to be submitted multiple times. This is TRUE when exposed filters grouped are using checkboxes as widgets. 1
views_handler::needs_style_plugin public function Determine if the argument needs a style plugin. 1
views_handler::options_validate public function Validate the options form. 4
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_button public function Shortcut to display the expose/hide button. 2
views_handler::show_expose_form public function Shortcut to display the exposed options form.
views_handler::store_exposed_input public function If set to remember exposed input in the session, store it there. 1
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_field::$additional_fields public property Stores additional fields which get added to the query. The generated aliases are stored in $aliases.
views_handler_field::$aliases public property
views_handler_field::$field_alias public property
views_handler_field::$last_render_index protected property Keeps track of the last render index.
views_handler_field::$original_value public property The field value prior to any rewriting.
views_handler_field::add_additional_fields public function Add 'additional' fields to the query.
views_handler_field::add_self_tokens public function Add any special tokens this field might use for itself. 4
views_handler_field::admin_summary public function Provide extra data to the administration form Overrides views_handler::admin_summary
views_handler_field::advanced_render public function Render a field using advanced settings.
views_handler_field::allow_advanced_render public function Determine if this field can allow advanced rendering. 1
views_handler_field::click_sortable public function Determine if this field is click sortable. 1
views_handler_field::construct public function Construct a new field handler. Overrides views_object::construct 17
views_handler_field::document_self_tokens public function Document any special tokens this field might use for itself. 4
views_handler_field::element_classes public function Return the class of the field.
views_handler_field::element_label_classes public function Return the class of the field's label.
views_handler_field::element_label_type public function Return an HTML element for the label based upon the field's element type.
views_handler_field::element_type public function Return an HTML element based upon the field's element type. 2
views_handler_field::element_wrapper_classes public function Return the class of the field's wrapper.
views_handler_field::element_wrapper_type public function Return an HTML element for the wrapper based upon the field's element type.
views_handler_field::get_elements public function Provide a list of elements valid for field HTML.
views_handler_field::get_render_tokens public function Get the 'render' tokens to use for advanced rendering.
views_handler_field::get_token_values_recursive public function Recursive function to add replacements for nested query string parameters.
views_handler_field::is_value_empty public function Checks if a field value is empty.
views_handler_field::label public function Get this field's label.
views_handler_field::options_submit public function Performs some cleanup tasks on the options array before saving it. Overrides views_handler::options_submit 1
views_handler_field::render_altered public function Render this field as altered text, from a fieldset set by the user.
views_handler_field::render_as_link public function Render this field as a link, with info from a fieldset set by the user.
views_handler_field::render_text public function Perform an advanced text render for the item.
views_handler_field::render_trim_text public function Trim the field down to the specified length.
views_handler_field::theme public function Call out to the theme() function.
views_handler_field::theme_functions public function Build a list of suitable theme functions for this view.
views_handler_field::tokenize_value public function Replace a value with tokens from the last field.
views_handler_field::ui_name public function Return a string representing this handler's name in the UI. Overrides views_handler::ui_name 1
views_handler_field::use_string_group_by public function Determines if this field will be available as an option to group the result by in the style settings.
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::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