File: Add snapshot()/setSnapshot methods

include/IFile.h

@@ -43,6 +43,10 @@ class IFile
         virtual bool addAudioTrack( const std::string& codec, unsigned int bitrate,
                                     unsigned int sampleRate, unsigned int nbChannels ) = 0;
         virtual std::vector<AudioTrackPtr> audioTracks() = 0;
+        // Returns the location of this file snapshot.
+        // This is likely to be used for album arts as well.
+        virtual const std::string& snapshot() = 0;
+        virtual bool setSnapshot( const std::string& snapshot ) = 0;
         /// Returns wether the file has been added as a stand alone file (true), or as
         /// part of a folder (false)
         virtual bool isStandAlone() = 0;

src/File.cpp

@@ -32,6 +32,7 @@ File::File( DBConnection dbConnection, sqlite3_stmt* stmt )
     m_movieId = sqlite::Traits<unsigned int>::Load( stmt, 7 );
     m_folderId = sqlite::Traits<unsigned int>::Load( stmt, 8 );
     m_lastModificationDate = sqlite::Traits<unsigned int>::Load( stmt, 9 );
+    m_snapshot = sqlite::Traits<std::string>::Load( stmt, 10 );
 
     m_isReady = m_type != UnknownType;
 }
@@ -201,6 +202,21 @@ std::vector<AudioTrackPtr> File::audioTracks()
     return sqlite::Tools::fetchAll<AudioTrack, IAudioTrack>( m_dbConnection, req, m_id );
 }
 
+const std::string &File::snapshot()
+{
+    return m_snapshot;
+}
+
+bool File::setSnapshot(const std::string &snapshot)
+{
+    static const std::string req = "UPDATE " + policy::FileTable::Name
+            + " SET snapshot = ? WHERE id_file = ?";
+    if ( sqlite::Tools::executeUpdate( m_dbConnection, req, snapshot, m_id ) == false )
+        return false;
+    m_snapshot = snapshot;
+    return true;
+}
+
 bool File::isStandAlone()
 {
     return m_folderId == 0;
@@ -240,6 +256,7 @@ bool File::createTable( DBConnection connection )
             "movie_id UNSIGNED INTEGER,"
             "folder_id UNSIGNED INTEGER,"
             "last_modification_date UNSIGNED INTEGER,"
+            "snapshot TEXT,"
             "FOREIGN KEY (album_track_id) REFERENCES " + policy::AlbumTrackTable::Name
             + "(id_track) ON DELETE CASCADE,"
             "FOREIGN KEY (show_episode_id) REFERENCES " + policy::ShowEpisodeTable::Name

src/File.h

@@ -64,6 +64,9 @@ class File : public IFile, public Cache<File, IFile, policy::FileTable, policy::
         virtual std::vector<VideoTrackPtr> videoTracks();
         virtual bool addAudioTrack(const std::string& codec, unsigned int bitrate , unsigned int sampleRate, unsigned int nbChannels);
         virtual std::vector<AudioTrackPtr> audioTracks();
+        virtual const std::string& snapshot() override;
+        virtual bool setSnapshot( const std::string& snapshot ) override;
+
         virtual bool isStandAlone() override;
         virtual unsigned int lastModificationDate() override;
 
@@ -84,6 +87,7 @@ class File : public IFile, public Cache<File, IFile, policy::FileTable, policy::
         unsigned int m_movieId;
         unsigned int m_folderId;
         unsigned int m_lastModificationDate;
+        std::string m_snapshot;
 
         // Auto fetched related properties
         Album* m_album;

test/Files.cpp

@@ -90,3 +90,19 @@ TEST_F( Files, Duration )
     f = ml->file( "/some/file" );
     ASSERT_EQ( f->duration(), 123u );
 }
+
+TEST_F( Files, Snapshot )
+{
+    auto f = ml->addFile( "/some/file" );
+    ASSERT_EQ( f->snapshot(), "" );
+
+    std::string newSnapshot( "/path/to/snapshot" );
+
+    f->setSnapshot( newSnapshot );
+    ASSERT_EQ( f->snapshot(), newSnapshot );
+
+    Reload();
+
+    f = ml->file( "/some/file" );
+    ASSERT_EQ( f->snapshot(), newSnapshot );
+}