PodcastService::PodcastService(Application* app, InternetModel* parent)
: InternetService(kServiceName, app, parent, parent),
use_pretty_covers_(true),
icon_loader_(new StandardItemIconLoader(app->album_cover_loader(), this)),
backend_(app->podcast_backend()),
model_(new PodcastServiceModel(this)),
proxy_(new PodcastSortProxyModel(this)),
context_menu_(nullptr),
root_(nullptr),
organise_dialog_(new OrganiseDialog(app_->task_manager())) {
icon_loader_->SetModel(model_);
proxy_->setSourceModel(model_);
proxy_->setDynamicSortFilter(true);
proxy_->sort(0);
connect(backend_, SIGNAL(SubscriptionAdded(Podcast)),
SLOT(SubscriptionAdded(Podcast)));
connect(backend_, SIGNAL(SubscriptionRemoved(Podcast)),
SLOT(SubscriptionRemoved(Podcast)));
connect(backend_, SIGNAL(EpisodesAdded(PodcastEpisodeList)),
SLOT(EpisodesAdded(PodcastEpisodeList)));
connect(backend_, SIGNAL(EpisodesUpdated(PodcastEpisodeList)),
SLOT(EpisodesUpdated(PodcastEpisodeList)));
connect(app_->playlist_manager(), SIGNAL(CurrentSongChanged(Song)),
SLOT(CurrentSongChanged(Song)));
}
PodcastUpdater::PodcastUpdater(Application* app, QObject* parent)
: QObject(parent),
app_(app),
update_interval_secs_(0),
update_timer_(new QTimer(this)),
loader_(new PodcastUrlLoader(this)),
pending_replies_(0)
{
connect(app_, SIGNAL(SettingsChanged()), SLOT(ReloadSettings()));
connect(update_timer_, SIGNAL(timeout()), SLOT(UpdateAllPodcastsNow()));
connect(app_->podcast_backend(), SIGNAL(SubscriptionAdded(Podcast)),
SLOT(SubscriptionAdded(Podcast)));
update_timer_->setSingleShot(true);
ReloadSettings();
}
void PodcastBackend::Subscribe(Podcast* podcast) {
// If this podcast is already in the database, do nothing
if (podcast->is_valid()) {
return;
}
// If there's an entry in the database with the same URL, take its data.
Podcast existing_podcast = GetSubscriptionByUrl(podcast->url());
if (existing_podcast.is_valid()) {
*podcast = existing_podcast;
return;
}
QMutexLocker l(db_->Mutex());
QSqlDatabase db(db_->Connect());
ScopedTransaction t(&db);
// Insert the podcast.
QSqlQuery q("INSERT INTO podcasts (" + Podcast::kColumnSpec +
")"
" VALUES (" +
Podcast::kBindSpec + ")",
db);
podcast->BindToQuery(&q);
q.exec();
if (db_->CheckErrors(q)) return;
// Update the database ID.
const int database_id = q.lastInsertId().toInt();
podcast->set_database_id(database_id);
// Update the IDs of any episodes.
PodcastEpisodeList* episodes = podcast->mutable_episodes();
for (auto it = episodes->begin(); it != episodes->end(); ++it) {
it->set_podcast_database_id(database_id);
}
// Add those episodes to the database.
AddEpisodes(episodes, &db);
t.Commit();
emit SubscriptionAdded(*podcast);
}
