/// By Ryan Moe
/// Edited: Julian Nguyen(4/27/13)
/// <summary>
/// This method returns a list of Album objects to the callback given by the parameter.
/// </summary>
/// <param name="guiCallback">The callback for the GUI.</param>
public void getAllAlbums(getAllAlbumNames_callback guiCallback)
{
ErrorReport errReport = null;
ReadOnlyObservableCollection<SimpleAlbumData> readOnlyAlbumList = null;
errReport = _photoBombDatabase.getAllAlbums_backend(out readOnlyAlbumList);
guiCallback(errReport, readOnlyAlbumList);
}
//-----------------------------------------------------------------
// By: Bill Sanders, based on Ryan Moe's earlier function
// last edited: 3/24/13
/// <summary>
/// Retrieves a list of all albums in the albums.xml file, sent back via the callback.
/// </summary>
/// <param name="guiCallback">The callback to send the data back to the GUI</param>
private void getAllAlbums_backend(getAllAlbumNames_callback guiCallback)
{
ErrorReport error = new ErrorReport();
// Ensure the database is valid before proceeding
if (!util_checkAlbumDatabase(error))
{
error.reportID = ErrorReport.FAILURE;
error.description = "The album database was determined to be not valid.";
guiCallback(error, null);
return;
}
// An object to enumerate over the album XML nodes
IEnumerable<XElement> _albumSearchIE;
try
{
// get all the albums
_albumSearchIE = (from c in _albumsDatabase.Elements() select c);
}
catch
{
error.reportID = ErrorReport.FAILURE;
error.description = "PhotoBomb.getAllAlbumsByID_backend():Failed at finding albums in the database.";
guiCallback(error, null);
return;
}
foreach (XElement thisAlbum in _albumSearchIE)
{
SimpleAlbumData userAlbum = new SimpleAlbumData();
userAlbum.UID = (int)thisAlbum.Attribute("uid");
try
{
// Throws an exception if there is not exactly one albumName for a given album.
userAlbum.albumName = thisAlbum.Descendants("albumName").Single().Value;
}
catch
{
// This is ugly. If we're upgrading to .net 4.5 anyway we can replace all error code with a tracking class:
// http://msdn.microsoft.com/en-us/library/system.runtime.compilerservices.callermembernameattribute.aspx
error.reportID = ErrorReport.SUCCESS_WITH_WARNINGS;
StringBuilder sb = new StringBuilder();
sb.AppendFormat("{0}.{1} : {2}",
this.GetType().Name,
MethodBase.GetCurrentMethod().Name,
"Found an album with more than one name, or invalid name."
);
error.warnings.Add(sb.ToString());
continue; // We'll keep going if one album is invalid
}
_albumsToReturn.Add(userAlbum);
}
ReadOnlyObservableCollection<SimpleAlbumData> readOnlyAlbumList = new ReadOnlyObservableCollection<SimpleAlbumData>(_albumsToReturn);
guiCallback(error, readOnlyAlbumList);
}
//-----------------------------------------------
//By: Ryan Moe
//Edited Last:
//
//This method returns a list of Album objects to the
//callback given by the parameter.
//PARAM 1 = a gui callback (see PhotoBombDelegates.cs).
public void getAllAlbums(getAllAlbumNames_callback guiCallback)
{
getAllAlbums_backend(guiCallback);
}
