biblio_handler_field_contributor.inc in Bibliography Module 6

File

views/biblio_handler_field_contributor.inc

<?php

class biblio_handler_field_contributor extends biblio_handler_field {
  function construct() {
    parent::construct();
    $this->additional_fields['vid'] = array(
      'table' => 'biblio',
      'field' => 'vid',
    );
    $this->auth_category = isset($this->definition['auth_category']) ? $this->definition['auth_category'] : 1;
  }
  function option_definition() {
    $options = parent::option_definition();
    $options['style_name'] = array(
      'default' => biblio_get_style(),
    );
    return $options;
  }
  function options_form(&$form, &$form_state) {
    parent::options_form($form, $form_state);
    module_load_include('inc', 'biblio', 'biblio.admin');
    $form['style_name'] = array(
      '#type' => 'radios',
      '#title' => t('Style'),
      '#default_value' => $this->options['style_name'],
      '#options' => _biblio_admin_get_styles(),
      '#description' => t('Define the layout of author lists.'),
    );
  }
  function query() {
    $this
      ->add_additional_fields();
    $this->field_alias = $this->aliases['vid'];

    // add the biblio_type field as tid
    $this->query
      ->add_field($this->table_alias, 'biblio_type', 'biblio_tid');
  }
  function pre_render($values) {
    module_load_include('inc', 'biblio', 'biblio_style_' . $this->options['style_name']);
    $author_options_func = 'biblio_style_' . $this->options['style_name'] . '_author_options';
    $this->author_options = $author_options_func();
    $vids = array();
    $this->items = array();
    foreach ($values as $result) {

      // Don't add empty results to the array.
      if (!empty($result->{$this->aliases['vid']})) {
        $vids[] = $result->{$this->aliases['vid']};
      }
    }
    if (count($vids)) {

      // Optimize query if $vids has only 1 item in the array, to use '=' instead of 'IN'.
      if (count($vids) > 1) {
        $vidstr = 'vid IN (' . implode(',', $vids) . ')';
      }
      else {
        $vidstr = 'vid = ' . $vids[0];
      }
      $result = db_query('SELECT * FROM {biblio_contributor} bc
                          INNER JOIN {biblio_contributor_data} bcd ON bc.cid = bcd.cid
													WHERE ' . $vidstr . ' AND auth_category=' . $this->auth_category . ' ORDER BY bc.rank');
      while ($item = db_fetch_array($result)) {

        // Clean up the $item from vid.
        $vid = $item['vid'];
        unset($item['vid']);
        $this->items[$vid][] = $item;
      }
    }
  }
  function render($values) {
    parent::set_label($values);
    $vid = $values->{$this->field_alias};
    if (!isset($this->items[$vid])) {
      return NULL;
    }
    return theme('biblio_format_authors', $this->items[$vid], $this->author_options);
  }

}

Classes

Name	Description
biblio_handler_field_contributor