file_aliases_image_handler_field_image_node_image.inc in File Aliases 6

Views handler for image field.

This is a fake field that does not query anything. Instead, it adds the node table fields we need to build a fake node object to send to Image module to load the proper image.

File

includes/file_aliases_image_handler_field_image_node_image.inc

<?php

/**
 * @file
 * Views handler for image field.
 *
 * This is a fake field that does not query anything. Instead, it adds the node
 * table fields we need to build a fake node object to send to Image module to
 * load the proper image.
 */

/**
 * Field handler to provide an image tag.
 *
 * Inherit from views_handler_field_node so we get the 'link to node' stuff for
 * free.
 */
class file_aliases_image_handler_field_image_node_image extends image_handler_field_image_node_image {
  function construct() {
    parent::construct();
    $this->additional_fields['fid'] = array(
      'table' => 'image',
      'field' => 'fid',
    );
    $this->additional_fields['image_size'] = array(
      'table' => 'image',
      'field' => 'image_size',
    );
  }
  function pre_render(&$values) {
    foreach ($values as $item) {
      if ($item->{$this->aliases['image_size']} == $this->options['image_derivative']) {
        $values = array(
          $item,
        );
        return;
      }
      if ($item->{$this->aliases['image_size']} == '_original') {
        $original = $item;
      }
    }
    $this->options['image_derivative'] = '_original';
    $values = array(
      $original,
    );
  }

  /**
   * Return image html, using image_load() and image_display().
   *
   * We rely on Image module to handle getting the data because although we can
   * use the derivative option to restrict the join, we do not have the agility
   * to fall back to the original when the requested derivative is larger than
   * the image and is absent from the system.
   */
  function render_html($values) {
    $derivative = $this->options['image_derivative'];
    $node = $this
      ->build_image_display_node($values);

    // image_load() will load the files for all derivatives. Derivatives larger
    // than the original fall back to the original. Stale derivatives will be
    // regenerated.
    image_load($node);
    if (($alias = drupal_get_path_alias('filefield_paths/alias/' . $values->{$this->aliases['fid']})) !== 'filefield_paths/alias/' . $values->{$this->aliases['fid']} && _file_aliases_display_alias('image', 'image')) {

      // Calculate relative path.
      $path = variable_get('file_downloads', FILE_DOWNLOADS_PUBLIC) == FILE_DOWNLOADS_PUBLIC ? '' : base_path();
      foreach (explode('/', file_directory_path()) as $dir) {
        $path .= '../';
      }
      $node->images[$derivative] = $path . $alias;
    }
    return image_display($node, $derivative);
  }

}

Classes

Name	Description
file_aliases_image_handler_field_image_node_image	Field handler to provide an image tag.