exif_location.module in Exif 7

Sets Location module coordinates from GPS EXIF image data

File

exif_location/exif_location.module

<?php

/**
 * @file Sets Location module coordinates from GPS EXIF image data
 */

/**
 * Implements hook_node_presave().
 */
function exif_location_node_presave($node) {

  // first check if exif lat and long fields exist
  if (is_array($node->field_gps_gpslatitude) && is_array($node->field_gps_gpslongitude)) {
    $itemslat = field_get_items('node', $node, 'field_gps_gpslatitude');
    $itemslong = field_get_items('node', $node, 'field_gps_gpslongitude');

    // then check if exif coordinates exist
    if (empty($itemslat) || empty($itemslong)) {
      return;
    }
    $lat = field_view_value('node', $node, 'field_gps_gpslatitude', $itemslat[0]);
    $lng = field_view_value('node', $node, 'field_gps_gpslongitude', $itemslong[0]);

    // then check if location coordinates are empty
    if (empty($node->location['latitude']) && empty($node->location['longitude'])) {
      $node->locations = array(
        array(
          'locpick' => array(
            'user_latitude' => $lat['#markup'],
            'user_longitude' => $lng['#markup'],
          ),
        ),
      );
      drupal_set_message('Node location coordinates have been set from EXIF data', 'status');
    }
  }
}

/**
 * Implementation of hook_form_alter
 * @param array $form
 * @param array $form_state
 * @param array $form_id
 */
function exif_location_form_alter(&$form, $form_state, $form_id) {

  /* Comment out the return below to enable this */
  return;

  /* Remove the location element from the node form */
  if (isset($form['#node']) && $form['#node']->type == 'image' && $form_id == $form['#node']->type . '_node_form') {
    $form['locations']['#access'] = FALSE;
  }
}

Functions

Name	Description
exif_location_form_alter	Implementation of hook_form_alter
exif_location_node_presave	Implements hook_node_presave().