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class views_plugin_display_attachment in Views (for Drupal 7) 6.2

Same name and namespace in other branches
  1. 6.3 plugins/views_plugin_display_attachment.inc \views_plugin_display_attachment
  2. 7.3 plugins/views_plugin_display_attachment.inc \views_plugin_display_attachment

The plugin that handles an attachment display.

Attachment displays are secondary displays that are 'attached' to a primary display. Effectively they are a simple way to get multiple views within the same view. They can share some information.

Hierarchy

Expanded class hierarchy of views_plugin_display_attachment

Related topics

Views' display plugins
Display plugins control how Views interact with the rest of Drupal.
1 string reference to 'views_plugin_display_attachment'
views_views_plugins in includes/plugins.inc
Implementation of hook_views_plugins

File

plugins/views_plugin_display_attachment.inc, line 16
Contains the attachment display plugin.

View source 
class views_plugin_display_attachment extends views_plugin_display {
  function option_definition() {
    $options = parent::option_definition();
    $options['attachment_position'] = array(
      'default' => 'before',
    );
    $options['inherit_arguments'] = array(
      'default' => TRUE,
    );
    $options['inherit_exposed_filters'] = array(
      'default' => FALSE,
    );
    $options['inherit_pager'] = array(
      'default' => FALSE,
    );
    $options['render_pager'] = array(
      'default' => TRUE,
    );
    $options['displays'] = array(
      'default' => array(),
    );
    return $options;
  }
  function execute() {
    return $this->view
      ->render($this->display->id);
  }
  function attachment_positions($position = NULL) {
    $positions = array(
      'before' => t('Before'),
      'after' => t('After'),
      'both' => t('Both'),
    );
    if ($position) {
      return $positions[$position];
    }
    return $positions;
  }

  /**
   * Provide the summary for attachment options in the views UI.
   *
   * This output is returned as an array.
   */
  function options_summary(&$categories, &$options) {

    // It is very important to call the parent function here:
    parent::options_summary($categories, $options);
    $categories['attachment'] = array(
      'title' => t('Attachment settings'),
    );
    $options['inherit_arguments'] = array(
      'category' => 'attachment',
      'title' => t('Inherit arguments'),
      'value' => $this
        ->get_option('inherit_arguments') ? t('Yes') : t('No'),
    );
    $options['inherit_exposed_filters'] = array(
      'category' => 'attachment',
      'title' => t('Inherit exposed filters'),
      'value' => $this
        ->get_option('inherit_exposed_filters') ? t('Yes') : t('No'),
    );
    $options['inherit_pager'] = array(
      'category' => 'attachment',
      'title' => t('Inherit pager'),
      'value' => $this
        ->get_option('inherit_pager') ? t('Yes') : t('No'),
    );
    $options['render_pager'] = array(
      'category' => 'attachment',
      'title' => t('Render pager'),
      'value' => $this
        ->get_option('render_pager') ? t('Yes') : t('No'),
    );
    $options['attachment_position'] = array(
      'category' => 'attachment',
      'title' => t('Position'),
      'value' => $this
        ->attachment_positions($this
        ->get_option('attachment_position')),
    );
    $displays = array_filter($this
      ->get_option('displays'));
    if (count($displays) > 1) {
      $attach_to = t('Multiple displays');
    }
    else {
      if (count($displays) == 1) {
        $display = array_shift($displays);
        if (!empty($this->view->display[$display])) {
          $attach_to = check_plain($this->view->display[$display]->display_title);
        }
      }
    }
    if (!isset($attach_to)) {
      $attach_to = t('None');
    }
    $options['displays'] = array(
      'category' => 'attachment',
      'title' => t('Attach to'),
      'value' => $attach_to,
    );
  }

  /**
   * Provide the default form for setting options.
   */
  function options_form(&$form, &$form_state) {

    // It is very important to call the parent function here:
    parent::options_form($form, $form_state);
    switch ($form_state['section']) {
      case 'inherit_arguments':
        $form['#title'] .= t('Inherit arguments');
        $form['inherit_arguments'] = array(
          '#type' => 'checkbox',
          '#title' => t('Inherit'),
          '#description' => t('Should this display inherit its arguments from the parent display to which it is attached?'),
          '#default_value' => $this
            ->get_option('inherit_arguments'),
        );
        break;
      case 'inherit_exposed_filters':
        $form['#title'] .= t('Inherit exposed filters');
        $form['inherit_exposed_filters'] = array(
          '#type' => 'checkbox',
          '#title' => t('Inherit'),
          '#description' => t('Should this display inherit its exposed filter values from the parent display to which it is attached?'),
          '#default_value' => $this
            ->get_option('inherit_exposed_filters'),
        );
        break;
      case 'inherit_pager':
        $form['#title'] .= t('Inherit pager');
        $form['inherit_pager'] = array(
          '#type' => 'checkbox',
          '#title' => t('Inherit'),
          '#description' => t('Should this display inherit its paging values from the parent display to which it is attached? Note that this will provide unexpected results if the number of items to display do not match.'),
          '#default_value' => $this
            ->get_option('inherit_pager'),
        );
        break;
      case 'render_pager':
        $form['#title'] .= t('Render pager');
        $form['render_pager'] = array(
          '#type' => 'checkbox',
          '#title' => t('Render'),
          '#description' => t('Should this display render the pager values? If not it can inherit from the parent...'),
          '#default_value' => $this
            ->get_option('render_pager'),
        );
        break;
      case 'attachment_position':
        $form['#title'] .= t('Position');
        $form['attachment_position'] = array(
          '#type' => 'radios',
          '#description' => t('Attach before or after the parent display?'),
          '#options' => $this
            ->attachment_positions(),
          '#default_value' => $this
            ->get_option('attachment_position'),
        );
        break;
      case 'displays':
        $form['#title'] .= t('Attach to');
        $displays = array();
        foreach ($this->view->display as $display_id => $display) {
          if (!empty($display->handler) && $display->handler
            ->accept_attachments()) {
            $displays[$display_id] = $display->display_title;
          }
        }
        $form['displays'] = array(
          '#type' => 'checkboxes',
          '#description' => t('Select which display or displays this should attach to.'),
          '#options' => $displays,
          '#default_value' => $this
            ->get_option('displays'),
        );
        break;
    }
  }

  /**
   * Perform any necessary changes to the form values prior to storage.
   * There is no need for this function to actually store the data.
   */
  function options_submit(&$form, &$form_state) {

    // It is very important to call the parent function here:
    parent::options_submit($form, $form_state);
    switch ($form_state['section']) {
      case 'inherit_arguments':
      case 'inherit_pager':
      case 'render_pager':
      case 'inherit_exposed_filters':
      case 'attachment_position':
      case 'displays':
        $this
          ->set_option($form_state['section'], $form_state['values'][$form_state['section']]);
        break;
    }
  }

  /**
   * Attach to another view.
   */
  function attach_to($display_id) {
    $displays = $this
      ->get_option('displays');
    if (empty($displays[$display_id])) {
      return;
    }
    if (!$this
      ->access()) {
      return;
    }

    // Get a fresh view because our current one has a lot of stuff on it because it's
    // already been executed.
    $view = $this->view
      ->clone_view();
    $view->original_args = $view->args;
    $args = $this
      ->get_option('inherit_arguments') ? $this->view->args : array();
    $view
      ->set_arguments($args);
    $view
      ->set_display($this->display->id);
    if ($this
      ->get_option('inherit_pager')) {
      $view->display_handler->use_pager = $this->view->display[$display_id]->handler
        ->use_pager();
      $view->display_handler
        ->set_option('pager_element', $this->view->display[$display_id]->handler
        ->get_option('pager_element'));
    }

    // because of this, it is very very important that displays that can accept
    // attachments not also be attachments, or this could explode messily.
    $attachment = $view
      ->execute_display($this->display->id, $args);
    switch ($this
      ->get_option('attachment_position')) {
      case 'before':
        $this->view->attachment_before .= $attachment;
        break;
      case 'after':
        $this->view->attachment_after .= $attachment;
        break;
      case 'both':
        $this->view->attachment_before .= $attachment;
        $this->view->attachment_after .= $attachment;
        break;
    }
    $view
      ->destroy();
  }

  /**
   * Attachment displays only use exposed widgets if
   * they are set to inherit the exposed filter settings
   * of their parent display.
   */
  function uses_exposed() {
    if (!empty($this->options['inherit_exposed_filters']) && parent::uses_exposed()) {
      return TRUE;
    }
    return FALSE;
  }

  /**
   * If an attachment is set to inherit the exposed filter
   * settings from its parent display, then don't render and
   * display a second set of exposed filter widgets.
   */
  function displays_exposed() {
    return $this->options['inherit_exposed_filters'] ? FALSE : TRUE;
  }
  function use_pager() {
    return !empty($this->use_pager);
  }
  function render_pager() {
    return !empty($this->use_pager) && $this
      ->get_option('render_pager');
  }

}

Members

Namesort descending Modifiers Type Description Overrides
views_object::$options property Except for displays, options for the object will be held here. 1
views_object::construct function Views handlers use a special construct function so that we can more easily construct them with variable arguments. 5
views_object::options function Set default options on this object. Called by the constructor in a complex chain to deal with backward compatibility. 1
views_object::set_default_options function Set default options. For backward compatibility, it sends the options array; this is a feature that will likely disappear at some point.
views_object::set_definition function Let the handler know what its full definition is.
views_object::unpack_options function Unpack options over our existing defaults, drilling down into arrays so that defaults don't get totally blown away.
views_plugin::additional_theme_functions function Provide a list of additional theme functions for the theme information page
views_plugin::theme_functions function Provide a full list of possible theme templates used by this style.
views_plugin_display::$handlers property
views_plugin_display::accept_attachments function Can this display accept attachments?
views_plugin_display::access function Determine if the user has access to this display of the view.
views_plugin_display::add_override_button function Add an override button for a given section, allowing the user to change whether this info is stored on the default display or on the current display.
views_plugin_display::defaultable_sections function Static member function to list which sections are defaultable and what items each section contains. 1
views_plugin_display::destroy function Overrides views_object::destroy
views_plugin_display::format_themes function Format a list of theme templates for output by the theme info helper.
views_plugin_display::get_access_plugin function Get the access plugin
views_plugin_display::get_cache_plugin function Get the cache plugin
views_plugin_display::get_field_labels function Retrieve a list of fields for the current display with the relationship associated if it exists.
views_plugin_display::get_handler function Get the handler object for a single handler.
views_plugin_display::get_handlers function Get a full array of handlers for $type. This caches them.
views_plugin_display::get_link_display function Check to see which display to use when creating links within a view using this display.
views_plugin_display::get_option function Intelligently get an option either from this display or from the default display, if directed to do so.
views_plugin_display::get_path function Return the base path to use for this display.
views_plugin_display::get_plugin function Get the display or row plugin, if it exists.
views_plugin_display::get_special_blocks function Provide the block system with any exposed widget blocks for this display.
views_plugin_display::get_style_type function Displays can require a certain type of style plugin. By default, they will be 'normal'. 1
views_plugin_display::has_path function Check to see if the display has a 'path' field. 1
views_plugin_display::hook_block function If this display creates a block, implement one of these.
views_plugin_display::hook_menu function If this display creates a page with a menu item, implement it here.
views_plugin_display::init function Init will be called after construct, when the plugin is attached to a view and a display. Overrides views_plugin::init
views_plugin_display::is_defaulted function Determine if a given option is set to use the default display or the current display
views_plugin_display::is_default_display function Determine if this display is the 'default' display which contains fallback settings 1
views_plugin_display::is_identifier_unique function Check if the provided identifier is unique.
views_plugin_display::options_override function If override/revert was clicked, perform the proper toggle.
views_plugin_display::options_validate function Validate the options form. Overrides views_plugin::options_validate 1
views_plugin_display::option_link function Because forms may be split up into sections, this provides an easy URL to exactly the right section. Don't override this.
views_plugin_display::override_option function Set an option and force it to be an override.
views_plugin_display::preview function Fully render the display for the purposes of a live preview or some other AJAXy reason. 1
views_plugin_display::pre_execute function Set up any variables on the view prior to execution. These are separated from execute because they are extremely common and unlikely to be overridden on an individual display.
views_plugin_display::query function Inject anything into the query that the display handler needs. Overrides views_plugin::query
views_plugin_display::render function Render this display. 1
views_plugin_display::render_empty function Render the empty text of the view.
views_plugin_display::render_filters function Not all display plugins will support filtering
views_plugin_display::render_footer function Render the footer of the view.
views_plugin_display::render_header function Render the header of the view.
views_plugin_display::render_more_link function Render the 'more' link
views_plugin_display::render_textarea function Render a text area, using the proper format.
views_plugin_display::set_option function Intelligently set an option either from this display or from the default display, if directed to do so.
views_plugin_display::set_override function Flip the override setting for the given section.
views_plugin_display::uses_breadcrumb function Check to see if the display needs a breadcrumb 1
views_plugin_display::uses_fields function Determine if the display's style uses fields.
views_plugin_display::uses_link_display function Check to see if the display has some need to link to another display. 1
views_plugin_display::use_ajax function Does the display use AJAX?
views_plugin_display::use_more function Does the display have a more link enabled?
views_plugin_display::use_more_always function Should the enabled display more link be shown when no more items?
views_plugin_display::use_more_text function Does the display have custom link text?
views_plugin_display::validate function Make sure the display and all associated handlers are valid. Overrides views_plugin::validate 1
views_plugin_display::view_special_blocks function Render any special blocks provided for this display.
views_plugin_display::_set_option_defaults function Set default options. Overrides views_object::_set_option_defaults
views_plugin_display_attachment::attachment_positions function
views_plugin_display_attachment::attach_to function Attach to another view. Overrides views_plugin_display::attach_to
views_plugin_display_attachment::displays_exposed function If an attachment is set to inherit the exposed filter settings from its parent display, then don't render and display a second set of exposed filter widgets. Overrides views_plugin_display::displays_exposed
views_plugin_display_attachment::execute function When used externally, this is how a view gets run and returns data in the format required. Overrides views_plugin_display::execute
views_plugin_display_attachment::options_form function Provide the default form for setting options. Overrides views_plugin_display::options_form
views_plugin_display_attachment::options_submit function Perform any necessary changes to the form values prior to storage. There is no need for this function to actually store the data. Overrides views_plugin_display::options_submit
views_plugin_display_attachment::options_summary function Provide the summary for attachment options in the views UI. Overrides views_plugin_display::options_summary
views_plugin_display_attachment::option_definition function Information about options for all kinds of purposes will be held here. Overrides views_plugin_display::option_definition
views_plugin_display_attachment::render_pager function Does the display render the pager if it has it enabled? Overrides views_plugin_display::render_pager
views_plugin_display_attachment::uses_exposed function Attachment displays only use exposed widgets if they are set to inherit the exposed filter settings of their parent display. Overrides views_plugin_display::uses_exposed
views_plugin_display_attachment::use_pager function Does the display have a pager enabled? Overrides views_plugin_display::use_pager