2012-03-04 21:47:58 +01:00
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/* This file is part of Clementine.
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Copyright 2012, David Sansome <me@davidsansome.com>
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Clementine is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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Clementine is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with Clementine. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "podcastbackend.h"
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#include "core/application.h"
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#include "core/database.h"
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2012-03-09 13:15:24 +01:00
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#include "core/logging.h"
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2012-03-04 21:47:58 +01:00
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#include "core/scopedtransaction.h"
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#include <QMutexLocker>
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PodcastBackend::PodcastBackend(Application* app, QObject* parent)
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: QObject(parent),
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app_(app),
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db_(app->database())
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{
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}
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void PodcastBackend::Subscribe(Podcast* podcast) {
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// If this podcast is already in the database, do nothing
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if (podcast->is_valid()) {
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return;
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}
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// If there's an entry in the database with the same URL, take its data.
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Podcast existing_podcast = GetSubscriptionByUrl(podcast->url());
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if (existing_podcast.is_valid()) {
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*podcast = existing_podcast;
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return;
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}
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QMutexLocker l(db_->Mutex());
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QSqlDatabase db(db_->Connect());
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ScopedTransaction t(&db);
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// Insert the podcast.
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QSqlQuery q("INSERT INTO podcasts (" + Podcast::kColumnSpec + ")"
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2012-03-06 19:37:46 +01:00
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" VALUES (" + Podcast::kBindSpec + ")", db);
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2012-03-04 21:47:58 +01:00
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podcast->BindToQuery(&q);
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q.exec();
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if (db_->CheckErrors(q))
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return;
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// Update the database ID.
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const int database_id = q.lastInsertId().toInt();
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podcast->set_database_id(database_id);
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// Update the IDs of any episodes.
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PodcastEpisodeList* episodes = podcast->mutable_episodes();
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for (PodcastEpisodeList::iterator it = episodes->begin() ; it != episodes->end() ; ++it) {
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it->set_podcast_database_id(database_id);
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}
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// Add those episodes to the database.
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AddEpisodes(episodes, &db);
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2012-03-06 19:37:46 +01:00
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t.Commit();
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2012-03-07 12:04:47 +01:00
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emit SubscriptionAdded(*podcast);
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2012-03-04 21:47:58 +01:00
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}
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2012-03-07 12:22:43 +01:00
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void PodcastBackend::Unsubscribe(const Podcast& podcast) {
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// If this podcast is not already in the database, do nothing
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if (!podcast.is_valid()) {
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return;
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}
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QMutexLocker l(db_->Mutex());
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QSqlDatabase db(db_->Connect());
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ScopedTransaction t(&db);
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// Remove the podcast.
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QSqlQuery q("DELETE FROM podcasts WHERE ROWID = :id", db);
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q.bindValue(":id", podcast.database_id());
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q.exec();
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if (db_->CheckErrors(q))
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return;
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// Remove all episodes in the podcast
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q = QSqlQuery("DELETE FROM podcast_episodes WHERE podcast_id = :id", db);
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q.bindValue(":id", podcast.database_id());
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q.exec();
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if (db_->CheckErrors(q))
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return;
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t.Commit();
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emit SubscriptionRemoved(podcast);
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}
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2012-03-04 21:47:58 +01:00
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void PodcastBackend::AddEpisodes(PodcastEpisodeList* episodes, QSqlDatabase* db) {
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QSqlQuery q("INSERT INTO podcast_episodes (" + PodcastEpisode::kColumnSpec + ")"
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2012-03-06 19:37:46 +01:00
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" VALUES (" + PodcastEpisode::kBindSpec + ")", *db);
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2012-03-04 21:47:58 +01:00
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for (PodcastEpisodeList::iterator it = episodes->begin() ; it != episodes->end() ; ++it) {
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it->BindToQuery(&q);
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q.exec();
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if (db_->CheckErrors(q))
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2012-03-09 17:47:56 +01:00
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continue;
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2012-03-04 21:47:58 +01:00
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const int database_id = q.lastInsertId().toInt();
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it->set_database_id(database_id);
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}
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}
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2012-03-09 13:15:24 +01:00
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void PodcastBackend::AddEpisodes(PodcastEpisodeList* episodes) {
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QMutexLocker l(db_->Mutex());
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QSqlDatabase db(db_->Connect());
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ScopedTransaction t(&db);
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AddEpisodes(episodes, &db);
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t.Commit();
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emit EpisodesAdded(*episodes);
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2012-03-06 19:37:46 +01:00
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}
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2012-03-09 17:47:56 +01:00
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void PodcastBackend::UpdateEpisodes(const PodcastEpisodeList& episodes) {
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QMutexLocker l(db_->Mutex());
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QSqlDatabase db(db_->Connect());
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ScopedTransaction t(&db);
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QSqlQuery q("UPDATE podcast_episodes"
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" SET listened = :listened,"
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2012-03-12 20:35:47 +01:00
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" listened_date = :listened_date,"
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2012-03-09 17:47:56 +01:00
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" downloaded = :downloaded,"
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" local_url = :local_url"
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" WHERE ROWID = :id", db);
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foreach (const PodcastEpisode& episode, episodes) {
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q.bindValue(":listened", episode.listened());
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2012-03-12 20:35:47 +01:00
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q.bindValue(":listened_date", episode.listened_date().toTime_t());
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2012-03-09 17:47:56 +01:00
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q.bindValue(":downloaded", episode.downloaded());
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2012-03-11 13:27:48 +01:00
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q.bindValue(":local_url", episode.local_url().toEncoded());
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2012-03-09 17:47:56 +01:00
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q.bindValue(":id", episode.database_id());
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q.exec();
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db_->CheckErrors(q);
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}
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t.Commit();
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emit EpisodesUpdated(episodes);
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}
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2012-03-04 21:47:58 +01:00
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PodcastList PodcastBackend::GetAllSubscriptions() {
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PodcastList ret;
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QMutexLocker l(db_->Mutex());
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QSqlDatabase db(db_->Connect());
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2012-03-09 13:15:24 +01:00
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QSqlQuery q("SELECT ROWID, " + Podcast::kColumnSpec + " FROM podcasts", db);
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2012-03-04 21:47:58 +01:00
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q.exec();
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if (db_->CheckErrors(q))
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return ret;
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while (q.next()) {
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Podcast podcast;
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podcast.InitFromQuery(q);
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ret << podcast;
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}
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return ret;
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}
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Podcast PodcastBackend::GetSubscriptionById(int id) {
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Podcast ret;
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QMutexLocker l(db_->Mutex());
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QSqlDatabase db(db_->Connect());
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2012-03-09 13:15:24 +01:00
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QSqlQuery q("SELECT ROWID, " + Podcast::kColumnSpec +
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" FROM podcasts"
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" WHERE ROWID = :id", db);
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2012-03-04 21:47:58 +01:00
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q.bindValue(":id", id);
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q.exec();
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if (!db_->CheckErrors(q) && q.next()) {
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ret.InitFromQuery(q);
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}
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return ret;
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}
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Podcast PodcastBackend::GetSubscriptionByUrl(const QUrl& url) {
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Podcast ret;
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QMutexLocker l(db_->Mutex());
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QSqlDatabase db(db_->Connect());
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2012-03-09 13:15:24 +01:00
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QSqlQuery q("SELECT ROWID, " + Podcast::kColumnSpec +
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" FROM podcasts"
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" WHERE url = :url", db);
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2012-03-04 21:47:58 +01:00
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q.bindValue(":url", url.toEncoded());
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q.exec();
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if (!db_->CheckErrors(q) && q.next()) {
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ret.InitFromQuery(q);
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2012-03-09 13:15:24 +01:00
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}
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return ret;
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}
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PodcastEpisodeList PodcastBackend::GetEpisodes(int podcast_id) {
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PodcastEpisodeList ret;
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QMutexLocker l(db_->Mutex());
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QSqlDatabase db(db_->Connect());
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QSqlQuery q("SELECT ROWID, " + PodcastEpisode::kColumnSpec +
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" FROM podcast_episodes"
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" WHERE podcast_id = :id", db);
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q.bindValue(":db", podcast_id);
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q.exec();
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if (db_->CheckErrors(q))
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return ret;
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while (q.next()) {
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PodcastEpisode episode;
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episode.InitFromQuery(q);
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ret << episode;
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2012-03-04 21:47:58 +01:00
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}
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return ret;
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}
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2012-03-10 22:05:57 +01:00
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PodcastEpisode PodcastBackend::GetEpisodeById(int id) {
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PodcastEpisode ret;
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QMutexLocker l(db_->Mutex());
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QSqlDatabase db(db_->Connect());
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QSqlQuery q("SELECT ROWID, " + PodcastEpisode::kColumnSpec +
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" FROM podcast_episodes"
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" WHERE ROWID = :id", db);
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q.bindValue(":db", id);
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q.exec();
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if (!db_->CheckErrors(q) && q.next()) {
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ret.InitFromQuery(q);
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}
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return ret;
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}
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PodcastEpisode PodcastBackend::GetEpisodeByUrl(const QUrl& url) {
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PodcastEpisode ret;
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QMutexLocker l(db_->Mutex());
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QSqlDatabase db(db_->Connect());
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QSqlQuery q("SELECT ROWID, " + PodcastEpisode::kColumnSpec +
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" FROM podcast_episodes"
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" WHERE url = :url", db);
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2012-03-11 13:27:48 +01:00
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q.bindValue(":url", url.toEncoded());
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q.exec();
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if (!db_->CheckErrors(q) && q.next()) {
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ret.InitFromQuery(q);
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}
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return ret;
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}
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PodcastEpisode PodcastBackend::GetEpisodeByUrlOrLocalUrl(const QUrl& url) {
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PodcastEpisode ret;
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QMutexLocker l(db_->Mutex());
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QSqlDatabase db(db_->Connect());
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QSqlQuery q("SELECT ROWID, " + PodcastEpisode::kColumnSpec +
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" FROM podcast_episodes"
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" WHERE url = :url"
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" OR local_url = :url", db);
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q.bindValue(":url", url.toEncoded());
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2012-03-10 22:05:57 +01:00
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q.exec();
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if (!db_->CheckErrors(q) && q.next()) {
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ret.InitFromQuery(q);
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}
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return ret;
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}
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2012-03-12 20:35:47 +01:00
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PodcastEpisodeList PodcastBackend::GetOldDownloadedEpisodes(const QDateTime& max_listened_date) {
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PodcastEpisodeList ret;
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QMutexLocker l(db_->Mutex());
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QSqlDatabase db(db_->Connect());
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QSqlQuery q("SELECT ROWID, " + PodcastEpisode::kColumnSpec +
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" FROM podcast_episodes"
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" WHERE downloaded = 'true'"
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" AND listened_date <= :max_listened_date", db);
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q.bindValue(":max_listened_date", max_listened_date.toTime_t());
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q.exec();
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if (db_->CheckErrors(q))
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return ret;
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while (q.next()) {
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PodcastEpisode episode;
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episode.InitFromQuery(q);
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ret << episode;
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}
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return ret;
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}
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