public void SaveChanges(string filePath)
{
using (var file = File.Create(filePath))
Serializer.Serialize(file, new CommentConfigDTO(this));
ChangesSaved?.Invoke(this, EventArgs.Empty);
}
public override async Task <int> SaveChangesAsync(CancellationToken cancellationToken = default)
{
SavingChanges?.Invoke(_eventHandlerProcessing);
await _eventHandlerProcessing.WaitAsync();
var saveChangesResult = await trySaveChangesAsync();
ChangesSaved?.Invoke(saveChangesResult, _eventHandlerProcessing);
await _eventHandlerProcessing.WaitAsync();
return(saveChangesResult.IsSuccessful
? saveChangesResult.RowsUpdated
: throw saveChangesResult.Exception);
//////////////////////////////////////////
async Task <SaveChangesResult> trySaveChangesAsync()
{
SaveChangesResult result = null;
try
{
var rowsUpdated = await base.SaveChangesAsync(cancellationToken);
result = new SaveChangesResult(rowsUpdated);
}
catch (Exception ex)
{
result = new SaveChangesResult(ex);
}
return(result);
}
}
public void RaiseSaveEvent(bool changesSaved)
{
PostSave(changesSaved);
ChangesSaved?.Invoke(this, new ChangesSaveEventArgs()
{
ChangesSaved = changesSaved
});
}
public async Task SaveChangesAsync()
{
SavingChanges?.Invoke(this, new SaveEventArgs {
TrackedItems = _trackedEntities.Values
});
try
{
var deleted = new List <GraphDataEntity>();
foreach (var graphDataEntity in from i in _trackedEntities where i.Value.IsDirty select i)
{
await _connector.ExecuteAsync(graphDataEntity.Value.GetUpdateStatement());
foreach (var edges in graphDataEntity.Value.GetEdges())
{
await edges.SaveChangesAsync();
}
if (graphDataEntity.Value.IsDeleted)
{
deleted.Add(graphDataEntity.Value);
}
}
foreach (var graphDataEntity in from i in _trackedEntities where i.Value.IsDirty select i)
{
foreach (var edges in graphDataEntity.Value.GetEdges())
{
await edges.SaveChangesAsync();
}
if (graphDataEntity.Value.IsDeleted)
{
deleted.Add(graphDataEntity.Value);
}
}
foreach (var graphDataEntity in deleted)
{
_trackedEntities.TryRemove(graphDataEntity._entityKey, out var d);
}
foreach (var graphDataEntity in _trackedEntities)
{
graphDataEntity.Value.Reset(false);
}
}
catch (Exception ex)
{
SaveChangesError?.Invoke(this, new SaveEventArgs {
TrackedItems = _trackedEntities.Values, Error = ex
});
}
ChangesSaved?.Invoke(this, new SaveEventArgs {
TrackedItems = _trackedEntities.Values
});
}
private void RaiseChangesSaved(List <OneEntityChanging> changes)
{
ChangesSaved?.Invoke(this, new SaveChangesEventArgs(changes));
}
/// <summary>Raises the<see /// cref="E:MyBlogLister.BusinessLayer.BusinessLayer.BloggingServiceBase.ChangesSaved" /> /// event.</summary> /// <param name="rowsAffected">(Required.) Integer that specifies the total number of rows affected by the Save operation.</param> protected virtual void OnChangesSaved(int rowsAffected) => ChangesSaved?.Invoke(rowsAffected);
