コード例 #1
0
        public async Task <EmptyResponseDto> RemoveTaskAsync(string taskID)
        {
            return(await Task.Run(async() =>
            {
                _logger.Information($"RemoveTaskAsync: Trying to remove taskID = {taskID}");
                var response = new EmptyResponseDto
                {
                    Message = string.Empty,
                    Succeed = false
                };
                using (var context = new MiraiNotesContext())
                {
                    try
                    {
                        var entity = await context
                                     .Tasks
                                     .FirstOrDefaultAsync(t => t.GoogleTaskID == taskID);

                        if (entity == null)
                        {
                            response.Message = "Couldn't find the task to delete";
                            _logger.Warning($"RemoveTaskAsync: Couldn't find the task with taskID = {taskID}");
                            return response;
                        }

                        var subTasks = context
                                       .Tasks
                                       .Where(t => t.ParentTask == entity.GoogleTaskID);

                        if (entity.LocalStatus == LocalStatus.CREATED)
                        {
                            context.Remove(entity);
                            if (subTasks.Count() > 0)
                            {
                                context.RemoveRange(subTasks);
                            }
                        }
                        else
                        {
                            entity.LocalStatus = LocalStatus.DELETED;
                            entity.UpdatedAt = DateTimeOffset.UtcNow;
                            entity.ToBeSynced = true;

                            context.Update(entity);

                            if (subTasks.Count() > 0)
                            {
                                await subTasks.ForEachAsync(st =>
                                {
                                    st.LocalStatus = LocalStatus.DELETED;
                                    st.UpdatedAt = DateTimeOffset.UtcNow;
                                    st.ToBeSynced = true;
                                });
                                context.UpdateRange(subTasks);
                            }
                        }
                        response.Succeed = await context.SaveChangesAsync() > 0;
                        _logger.Information("RemoveTaskAsync: Completed successfully");
                    }
                    catch (Exception e)
                    {
                        _logger.Error(e, "RemoveTaskAsync: An unknown error occurred");
                        response.Message = GetExceptionMessage(e);
                    }
                }
                return response;
            }).ConfigureAwait(false));
        }