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<?php
/**
* Tidypics Add Photo Tag
*
*/
gatekeeper();
action_gatekeeper();
$coordinates_str = get_input('coordinates');
$user_id = get_input('user_id');
$image_guid = get_input('image_guid');
$word = get_input('word');
if ($image_guid == 0) {
register_error(elgg_echo("tidypics:phototagging:error"));
forward($_SERVER['HTTP_REFERER']);
}
$image = get_entity($image_guid);
if (!$image)
{
register_error(elgg_echo("tidypics:phototagging:error"));
forward($_SERVER['HTTP_REFERER']);
}
// test for empty tag
if ($user_id == 0 && empty($word)) {
register_error(elgg_echo("tidypics:phototagging:error"));
forward($_SERVER['HTTP_REFERER']);
}
$new_word_tag = false;
if ($user_id != 0) {
$relationships_type = 'user';
$value = $user_id;
} else {
$relationships_type = 'word';
$value = $word;
// check to see if the photo has this tag and add if not
if (!is_array($image->tags)) {
if ($image->tags != $word) {
$new_word_tag = true;
$tagarray = $image->tags . ',' . $word;
$tagarray = string_to_tag_array($tagarray);
}
} else {
if (!in_array($word, $image->tags)) {
$new_word_tag = true;
$tagarray = $image->tags;
$tagarray[] = $word;
}
}
}
// add new tag now so it is available in search
if ($new_word_tag) {
$image->clearMetadata('tags');
$image->tags = $tagarray;
}
// create string for javascript tag object
$tag->coords = $coordinates_str;
$tag->type = $relationships_type;
$tag->value = $value;
$access_id = $image->getAccessID();
$owner_id = get_loggedin_userid();
//Save annotation
if ($image->annotate('phototag', serialize($tag), $access_id, $owner_id)) {
// if tag is a user id, add relationship for searching (find all images with user x)
if ($relationships_type === 'user') {
if (!check_entity_relationship($user_id, 'phototag', $image_guid))
add_entity_relationship($user_id, 'phototag', $image_guid);
}
system_message(elgg_echo("tidypics:phototagging:success"));
}
forward($_SERVER['HTTP_REFERER']);
?>
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