/// <summary>
/// Appends a task to the task file.
/// </summary>
/// <param name="taskToAdd">The task to append.</param>
/// <returns>True if operation was successful; False if not.</returns>
internal bool AddTaskToFile(Task taskToAdd)
{
try
{
XDocument doc = XDocument.Load(taskStorageFile);
XElement newTaskElem = taskToAdd.ToXElement();
doc.Root.Add(newTaskElem);
doc.Save(taskStorageFile);
}
catch (Exception e)
{
Logger.Error(e, "AddTaskToFile::Storage");
AlertBox.Show("A problem was encoutered saving the new task to file.");
return false;
}
return true;
}
/// <summary>
/// Updates a task in the task file.
/// </summary>
/// <param name="taskToUpdate">The task to update.</param>
/// <returns>True if operation was successful; False if not.</returns>
internal bool UpdateTask(Task taskToUpdate)
{
XDocument doc = XDocument.Load(taskStorageFile);
var task = from node in doc.Descendants("Task")
let attr = node.Attribute("id")
where attr != null && attr.Value == taskToUpdate.ID.ToString()
select node;
if (task == null) return false;
try
{
XElement taskNode = task.First();
taskNode.ReplaceWith(taskToUpdate.ToXElement());
}
catch (Exception e)
{
Logger.Error(e, "UpdateTask::Storage");
return false;
}
doc.Save(taskStorageFile);
return true;
}
