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biblio_handler_field_export_link.inc in Bibliography Module 7

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views/biblio_handler_field_export_link.inc
View source
<?php

/**
 *
 */
class biblio_handler_field_export_link extends views_handler_field {

  /**
   *
   */
  public function init(&$view, &$options) {
    parent::init($view, $options);
    $this->additional_fields['nid'] = array(
      'table' => 'node',
      'field' => 'nid',
    );
  }

  /**
   *
   */
  public function query() {
    $this
      ->add_additional_fields();
  }

  /**
   *
   */
  public function option_definition() {
    $options = parent::option_definition();
    $options['text'] = array(
      'default' => '',
      'translatable' => TRUE,
    );
    $options['label'] = array(
      'default' => '',
    );
    return $options;
  }

  /**
   *
   */
  public function options_form(&$form, &$form_state) {
    parent::options_form($form, $form_state);
    $text = !empty($this->options['text']) ? $this->options['text'] : $this->definition['format name'];
    $form['text'] = array(
      '#type' => 'textfield',
      '#title' => t('Text to display'),
      '#default_value' => $text,
    );
  }

  /**
   *
   */
  public function render($values) {
    if (user_access('show export links')) {
      $format = $this->definition['format'];
      $base = variable_get('biblio_base', 'biblio');
      $nid = $this
        ->get_value($values, 'nid');
      $this->options['alter']['make_link'] = TRUE;
      $this->options['alter']['path'] = "{$base}/export/{$format}/{$nid}";
      $text = !empty($this->options['text']) ? $this->options['text'] : $this->definition['format name'];
      return $text;
    }
  }

}