/**
* Import a single album.
*/
static function import_album(&$queue)
{
// The queue is a set of nested associative arrays where the key is the album id and the
// value is an array of similar arrays. We'll do a breadth first tree traversal using the
// queue to keep our state. Doing it breadth first means that the parent will be created by
// the time we get to the child.
// Dequeue the current album and enqueue its children
list($g2_album_id, $children) = each($queue);
unset($queue[$g2_album_id]);
foreach ($children as $key => $value) {
$queue[$key] = $value;
}
if (self::map($g2_album_id)) {
return;
}
try {
// Load the G2 album item, and figure out its parent in G3.
$g2_album = g2(GalleryCoreApi::loadEntitiesById($g2_album_id));
} catch (Exception $e) {
return t("Failed to load Gallery 2 album with id: %id\n%exception", array("id" => $g2_album_id, "exception" => (string) $e));
}
if ($g2_album->getParentId() == null) {
$album = item::root();
} else {
$parent_album = ORM::factory("item", self::map($g2_album->getParentId()));
$album = ORM::factory("item");
$album->type = "album";
$album->parent_id = self::map($g2_album->getParentId());
g2_import::set_album_values($album, $g2_album);
try {
$album->save();
} catch (Exception $e) {
throw new G2_Import_Exception(t("Failed to import Gallery 2 album with id %id and name %name.", array("id" => $g2_album_id, "name" => $album->name)), $e);
}
self::import_keywords_as_tags($g2_album->getKeywords(), $album);
}
self::set_map($g2_album_id, $album->id, "album", self::g2_url(array("view" => "core.ShowItem", "itemId" => $g2_album->getId())));
self::_import_permissions($g2_album, $album);
}
static function import($task)
{
g2_import::lower_error_reporting();
$start = microtime(true);
g2_import::init();
$stats = $task->get("stats");
$done = $task->get("done");
$total = $task->get("total");
$completed = $task->get("completed");
$mode = $task->get("mode");
$queue = $task->get("queue");
if (!isset($mode)) {
$stats = g2_import::g2_stats();
$stats["items"] = $stats["photos"] + $stats["movies"];
unset($stats["photos"]);
unset($stats["movies"]);
$stats["highlights"] = $stats["albums"];
$task->set("stats", $stats);
$task->set("total", $total = array_sum(array_values($stats)));
$completed = 0;
$mode = 0;
$done = array();
foreach (array_keys($stats) as $key) {
$done[$key] = 0;
}
$task->set("done", $done);
// Ensure G2 ACLs are compacted to speed up import.
g2(GalleryCoreApi::compactAccessLists());
}
$modes = array("groups", "users", "albums", "items", "comments", "tags", "highlights", "done");
while (!$task->done && microtime(true) - $start < 1.5) {
if ($done[$modes[$mode]] == $stats[$modes[$mode]]) {
// Nothing left to do for this mode. Advance.
$mode++;
$task->set("last_id", 0);
$queue = array();
// Start the loop from the beginning again. This way if we get to a mode that requires no
// actions (eg, if the G2 comments module isn't installed) we won't try to do any comments
// queries.. in the next iteration we'll just skip over that mode.
if ($modes[$mode] != "done") {
continue;
}
}
switch ($modes[$mode]) {
case "groups":
if (empty($queue)) {
$task->set("queue", $queue = g2_import::get_group_ids($task->get("last_id", 0)));
$task->set("last_id", end($queue));
}
$log_message = g2_import::import_group($queue);
if ($log_message) {
$task->log($log_message);
}
$task->status = t("Importing groups (%count of %total)", array("count" => $done["groups"] + 1, "total" => $stats["groups"]));
break;
case "users":
if (empty($queue)) {
$task->set("queue", $queue = g2_import::get_user_ids($task->get("last_id", 0)));
$task->set("last_id", end($queue));
}
$log_message = g2_import::import_user($queue);
if ($log_message) {
$task->log($log_message);
}
$task->status = t("Importing users (%count of %total)", array("count" => $done["users"] + 1, "total" => $stats["users"]));
break;
case "albums":
if (empty($queue)) {
$g2_root_id = g2(GalleryCoreApi::getDefaultAlbumId());
$tree = g2(GalleryCoreApi::fetchAlbumTree());
$task->set("queue", $queue = array($g2_root_id => $tree));
// Update the root album to reflect the Gallery2 root album.
$root_album = item::root();
g2_import::set_album_values($root_album, g2(GalleryCoreApi::loadEntitiesById($g2_root_id)));
$root_album->save();
}
$log_message = g2_import::import_album($queue);
if ($log_message) {
$task->log($log_message);
}
$task->status = t("Importing albums (%count of %total)", array("count" => $done["albums"] + 1, "total" => $stats["albums"]));
break;
case "items":
if (empty($queue)) {
$task->set("queue", $queue = g2_import::get_item_ids($task->get("last_id", 0)));
$task->set("last_id", end($queue));
}
$log_message = g2_import::import_item($queue);
if ($log_message) {
$task->log($log_message);
}
$task->status = t("Importing photos (%count of %total)", array("count" => $done["items"] + 1, "total" => $stats["items"]));
break;
case "comments":
if (empty($queue)) {
$task->set("queue", $queue = g2_import::get_comment_ids($task->get("last_id", 0)));
$task->set("last_id", end($queue));
}
$log_message = g2_import::import_comment($queue);
if ($log_message) {
$task->log($log_message);
}
$task->status = t("Importing comments (%count of %total)", array("count" => $done["comments"] + 1, "total" => $stats["comments"]));
break;
case "tags":
if (empty($queue)) {
$task->set("queue", $queue = g2_import::get_tag_item_ids($task->get("last_id", 0)));
$task->set("last_id", end($queue));
}
$log_message = g2_import::import_tags_for_item($queue);
if ($log_message) {
$task->log($log_message);
}
$task->status = t("Importing tags (%count of %total)", array("count" => $done["tags"] + 1, "total" => $stats["tags"]));
break;
case "highlights":
if (empty($queue)) {
$task->set("queue", $queue = g2(GalleryCoreApi::fetchAlbumTree()));
}
$log_message = g2_import::set_album_highlight($queue);
if ($log_message) {
$task->log($log_message);
}
$task->status = t("Album highlights (%count of %total)", array("count" => $done["highlights"] + 1, "total" => $stats["highlights"]));
break;
case "done":
$task->status = t("Import complete");
$task->done = true;
$task->state = "success";
break;
}
if (!$task->done) {
$done[$modes[$mode]]++;
$completed++;
}
}
$task->percent_complete = 100 * ($completed / $total);
$task->set("completed", $completed);
$task->set("mode", $mode);
$task->set("queue", $queue);
$task->set("done", $done);
g2_import::restore_error_reporting();
}