class location_handler_sort_location_distance in Location 7.4

@file Coordinates sort handler.

Hierarchy

• class \views_object
  • class \views_handler
    • class \views_handler_sort
      • class \location_handler_sort_location_distance

1 string reference to 'location_handler_sort_location_distance'

location_views_data in ./location.views.inc

Implementation of hook_views_data().

File

handlers/location_handler_sort_location_distance.inc, line 8

Coordinates sort handler.

class location_handler_sort_location_distance extends views_handler_sort {
  function option_definition() {
    $options = parent::option_definition();
    $options['origin'] = array(
      'default' => 'user',
    );
    $options['latitude'] = array(
      'default' => '',
    );
    $options['longitude'] = array(
      'default' => '',
    );
    $options['postal_code'] = array(
      'default' => '',
    );
    $options['country'] = array(
      'default' => '',
    );
    $options['php_code'] = array(
      'default' => '',
    );
    $options['nid_arg'] = array(
      'default' => '',
    );
    $options['nid_loc_field'] = array(
      'default' => 'node',
    );
    $options['uid_arg'] = array(
      'default' => '',
    );
    return $options;
  }
  function has_extra_options() {
    return TRUE;
  }
  function extra_options_form(&$form, &$form_state) {
    $form['origin'] = array(
      '#type' => 'select',
      '#title' => t('Origin'),
      '#options' => array(
        'user' => t("User's Latitude / Longitude (blank if unset)"),
        'hybrid' => t("User's Latitude / Longitude (fall back to static if unset)"),
        'static' => t('Static  Latitude / Longitude'),
        'tied' => t("Use Distance / Proximity filter"),
        'postal' => t('Postal Code / Country'),
        'postal_default' => t('Postal Code (assume default country)'),
        'php' => t('Use PHP code to determine latitude/longitude'),
        'nid_arg' => t("Node's Latitude / Longitude from views nid argument"),
        'uid_arg' => t("User's Latitude / Longitude from views uid argument"),
      ),
      '#description' => t("This will be the way the latitude/longitude of origin is determined. When using the user's latitude / longitude, if a user has multiple locations the first will be used."),
      '#default_value' => $this->options['origin'],
    );
    $form['latitude'] = array(
      '#type' => 'textfield',
      '#title' => t('Latitude'),
      '#default_value' => $this->options['latitude'],
      '#process' => array(
        'ctools_dependent_process',
      ),
      '#dependency' => array(
        'edit-options-origin' => array(
          'hybrid',
          'static',
        ),
      ),
    );
    $form['longitude'] = array(
      '#type' => 'textfield',
      '#title' => t('Longitude'),
      '#default_value' => $this->options['longitude'],
      '#process' => array(
        'ctools_dependent_process',
      ),
      '#dependency' => array(
        'edit-options-origin' => array(
          'hybrid',
          'static',
        ),
      ),
    );
    $form['postal_code'] = array(
      '#type' => 'textfield',
      '#title' => t('Postal code'),
      '#default_value' => $this->options['postal_code'],
      '#process' => array(
        'ctools_dependent_process',
      ),
      '#dependency' => array(
        'edit-options-origin' => array(
          'postal',
          'postal_default',
        ),
      ),
    );
    $form['country'] = array(
      '#type' => 'select',
      '#title' => t('Country'),
      '#options' => array(
        '' => '',
      ) + location_get_iso3166_list(),
      '#default_value' => $this->options['country'],
      '#process' => array(
        'ctools_dependent_process',
      ),
      '#dependency' => array(
        'edit-options-origin' => array(
          'postal',
        ),
      ),
    );
    $form['php_code'] = array(
      '#type' => 'textarea',
      '#title' => t('PHP code for latitude, longitude'),
      '#default_value' => $this->options['php_code'],
      '#process' => array(
        'ctools_dependent_process',
      ),
      '#dependency' => array(
        'edit-options-origin' => array(
          'php',
        ),
      ),
      '#description' => t("Enter PHP code that returns a latitude/longitude.  Do not use <?php ?>. You must return only an array with float values set for the 'latitude' and 'longitude' keys."),
    );
    list($nid_argument_options, $uid_argument_options) = location_views_proximity_get_argument_options($this->view);
    $nid_loc_field_options = location_views_proximity_get_location_field_options();
    $form['nid_arg'] = array(
      '#type' => 'select',
      '#title' => t('Node ID argument to use'),
      '#options' => $nid_argument_options,
      '#default_value' => $this->options['nid_arg'],
      '#description' => empty($nid_argument_options) ? t("Select which of the view's arguments to use as the node ID.  The latitude / longitude of the first location of that node will be used as the origin. Use the 'Global: Null' argument if you don't want to also restrict results to that node ID. You must have added arguments to the view to use this option.") : t("Select which of the view's arguments to use as the node ID.  The latitude / longitude of the first location of that node will be used as the origin. Use the 'Global: Null' argument if you don't want to also restrict results to that node ID."),
      '#process' => array(
        'ctools_dependent_process',
      ),
      '#dependency' => array(
        'edit-options-origin' => array(
          'nid_arg',
        ),
      ),
    );
    $form['nid_loc_field'] = array(
      '#type' => 'select',
      '#title' => t('Location to use'),
      '#options' => $nid_loc_field_options,
      '#default_value' => $this->options['nid_loc_field'],
      '#description' => t("Select which of the node's locations to use as the origin.  Either the node locations or a CCK location field.  If the location supports multiple entries the first one will be used."),
      '#process' => array(
        'ctools_dependent_process',
      ),
      '#dependency' => array(
        'edit-options-origin' => array(
          'nid_arg',
        ),
      ),
    );
    $form['uid_arg'] = array(
      '#type' => 'select',
      '#title' => t('User ID argument to use'),
      '#options' => $uid_argument_options,
      '#default_value' => $this->options['uid_arg'],
      '#description' => empty($uid_argument_options) ? t("Select which of the view's arguments to use as the user ID.  The latitude / longitude of the first location of that user will be used as the origin. Use the 'Global: Null' argument if you don't want to also restrict results to that user ID. You must have added arguments to the view to use this option.") : t("Select which of the view's arguments to use as the user ID.  The latitude / longitude of the first location of that user will be used as the origin. Use the 'Global: Null' argument if you don't want to also restrict results to that user ID."),
      '#process' => array(
        'ctools_dependent_process',
      ),
      '#dependency' => array(
        'edit-options-origin' => array(
          'uid_arg',
        ),
      ),
    );
  }
  function query() {
    $coordinates = location_views_proximity_get_reference_location($this->view, $this->options);
    $this
      ->ensure_my_table();

    // OK, so this part will need a little explanation.
    // Since the distance calculation is so icky, we try quite hard
    // to save some work for the database.
    // If someone has added a field that matches the sort, we just sort on that column!
    $alias = $this->table_alias . '_' . $this->field . '_sort';
    foreach ($this->view->field as $filter) {
      if ($filter->table == 'location' && $filter->field == 'distance' && $filter->options['relationship'] == $this->options['relationship']) {
        if ($filter->options['origin'] == $this->options['origin'] && $filter->options['latitude'] == $this->options['latitude'] && $filter->options['longitude'] == $this->options['longitude']) {

          // We have a match! Sync aliases to make it easier on the database.
          $alias = $filter->field_alias;
        }
      }
    }
    if (empty($coordinates)) {

      // We don't know the distance.
      // Therefore, we don't need to sort on it.
    }
    else {

      // This is done exactly the same as the field version.
      // Views is ok with us redefining the formula for a field.
      // If ANYTHING differs in the configuration, we will use a new alias.
      $this->query
        ->add_orderby(NULL, earth_distance_sql($coordinates['longitude'], $coordinates['latitude'], $this->table_alias), $this->options['order'], $alias);
    }
  }

}

Members

Name	Modifiers	Type	Description	Overrides
location_handler_sort_location_distance::extra_options_form		function	Provide a form for setting options. Overrides views_handler::extra_options_form
location_handler_sort_location_distance::has_extra_options		function	If a handler has 'extra options' it will get a little settings widget and another form called extra_options. Overrides views_handler::has_extra_options
location_handler_sort_location_distance::option_definition		function	Information about options for all kinds of purposes will be held here. Overrides views_handler_sort::option_definition
location_handler_sort_location_distance::query		function	Called to add the sort to a query. Overrides views_handler_sort::query
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::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_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_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::init	public	function	Init the handler with necessary data.	6
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::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::store_exposed_input	public	function	If set to remember exposed input in the session, store it there.	1
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_sort::admin_summary	public	function	Display whether or not the sort order is ascending or descending Overrides views_handler::admin_summary	1
views_handler_sort::can_expose	public	function	Determine if a sort can be exposed. Overrides views_handler::can_expose	1
views_handler_sort::expose_form	public	function	Form for exposed handler options. Overrides views_handler::expose_form
views_handler_sort::expose_options	public	function	Provide default options for exposed sorts. Overrides views_handler::expose_options
views_handler_sort::options_form	public	function	Basic options for all sort criteria Overrides views_handler::options_form	4
views_handler_sort::options_submit	public	function	Simple submit handler. Overrides views_handler::options_submit
views_handler_sort::options_validate	public	function	Simple validate handler. Overrides views_handler::options_validate
views_handler_sort::show_expose_button	public	function	Shortcut to display the expose/hide button. Overrides views_handler::show_expose_button
views_handler_sort::show_sort_form	public	function	Shortcut to display the value form.	1
views_handler_sort::sort_options	public	function	Provide a list of options for the default sort form.
views_handler_sort::sort_submit	public	function
views_handler_sort::sort_validate	public	function
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