class content_handler_sort in Content Construction Kit (CCK) 6.2

@file Handles sorts and deals properly with multiple values by allowing the views administrator to select deltas.

Hierarchy

• class \content_handler_sort extends \views_handler_sort

1 string reference to 'content_handler_sort'

content_views_field_views_data in includes/views/content.views.inc

File

includes/views/handlers/content_handler_sort.inc, line 8

Handles sorts and deals properly with multiple values by allowing the views administrator to select deltas.

class content_handler_sort extends views_handler_sort {
  var $content_field;
  function construct() {
    parent::construct();
    $this->content_field = content_fields($this->definition['content_field_name']);
    $this->additional_fields = $this->definition['additional fields'];
  }
  function option_definition() {
    $options = parent::option_definition();
    $options['delta'] = array(
      'default' => -1,
    );
    return $options;
  }

  /**
   * Add a delta selector for multiple fields.
   */
  function options_form(&$form, &$form_state) {
    $field = $this->content_field;
    parent::options_form($form, $form_state);

    // Only add the form gadget if the field is multiple.
    if ($field['multiple']) {
      $max_delta = $field['multiple'];

      // 1 means unlimited.
      if ($max_delta == 1) {
        $max_delta = 10;
      }
      $options = array(
        '-1' => t('All'),
      );
      for ($i = 0; $i < $max_delta; $i++) {
        $options[$i] = $i + 1;
      }
      $form['delta'] = array(
        '#type' => 'select',
        '#options' => $options,
        '#default_value' => $this->options['delta'],
        '#title' => t('Delta'),
        '#description' => t('The delta allows you to select which item in a multiple value field will be used for sorting. Select "1" to use the first item, "2" for the second item, and so on. If you select "All", each item in the field will create a new row, which may appear to cause duplicates.'),
      );
    }
  }
  function ensure_my_table() {
    if (!isset($this->table_alias)) {
      $join = $this
        ->get_join();
      if (!isset($join->extra)) {
        $join->extra = array();
      }
      $delta = isset($this->options['delta']) ? $this->options['delta'] : -1;
      if ($delta != -1) {
        $join->extra[] = array(
          'field' => 'delta',
          'value' => $delta,
          'numeric' => TRUE,
        );
      }
      $this->table_alias = $this->query
        ->ensure_table($this->table, $this->relationship, $join);
    }
    return $this->table_alias;
  }

}

Members

Name	Modifiers	Type	Description	Overrides
content_handler_sort::$content_field		property
content_handler_sort::construct		function
content_handler_sort::ensure_my_table		function
content_handler_sort::options_form		function	Add a delta selector for multiple fields.
content_handler_sort::option_definition		function