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');
        }
    }
}

/**
 * Implements hook_form_alter().
 */
function exif_location_form_alter(&$form, $form_state, $form_id) {
    // @todo Is this function still needed?
    return;
    // Remove the location element from the node form.
    if (isset($form['#node']) && $form['#node']->type == 'image' && $form_id == $form['#node']->type . '_node_form') {
        $form['locations']['#access'] = FALSE;
    }
}