public static TaskTimeSpanService ToService(this TaskTimeSpan timeSpan, IStudyTasksService service)
{
if (service == null)
{
throw new ArgumentNullException(nameof(service));
}
var task = service.GetTask(timeSpan.TaskId);
if (task == null)
{
throw new ArgumentException($"A task with Id {timeSpan.TaskId} does not exist in the database", nameof(timeSpan));
}
return(new TaskTimeSpanService
{
Id = timeSpan.Id,
Start = timeSpan.Start,
End = timeSpan.End,
TaskId = timeSpan.TaskId
});
}
/// <summary> Creates a <see cref="StudyTask"/> instance representing an already existing task in the database. </summary>
/// <param name="taskId"> The id of the task in the database to fetch. </param>
public StudyTask(IStudyTasksService service, int taskId)
: this(service, service.GetTask(taskId))
{
Contract.Assert(this.MessageObject.Id == taskId);
}