/// <summary>
/// Add tag to database
/// </summary>
/// <param name="userId">User identifier</param>
/// <param name="name">Caption for new tag</param>
/// <param name="parentId">Parent identifier for tag</param>
/// <returns>Execution result with identifier for new tag</returns>
public AddResponse Add(int userId, string name, int parentId)
{
var addResponse = new AddResponse();
if (HasUserAccess(userId, parentId))
{
if (string.IsNullOrEmpty(name))
{
addResponse.IsError = true;
addResponse.Errors.Add(Error.TagNameHasNotBeenSet);
}
else
{
var tag = new Tag();
tag.Parent = GetById(userId, parentId).Object;
tag.Name = name;
tag.User = new UserRepository(context).GetById(userId, userId).Object;
context.Tags.AddObject(tag);
context.Save();
addResponse.Id = tag.Id;
}
}
else
{
addResponse.IsError = true;
addResponse.Errors.Add(Error.UserDoesNotHaveAccess);
}
return addResponse;
}
private void FixupTag(Tag previousValue)
{
if (previousValue != null && previousValue.ExpenseRecords.Contains(this))
{
previousValue.ExpenseRecords.Remove(this);
}
if (Tag != null)
{
if (!Tag.ExpenseRecords.Contains(this))
{
Tag.ExpenseRecords.Add(this);
}
}
}
/// <summary>
/// Delete tag from datase
/// </summary>
/// <param name="userId">User identifier</param>
/// <param name="entity">Tag identifier</param>
/// <returns>Execution result</returns>
public Response Delete(int userId, Tag entity)
{
var response = new Response();
if (entity != null && HasUserAccess(userId, entity.Id))
{
while (entity.Children.Count > 0)
{
Delete(userId, entity.Children.First());
}
context.Tags.DeleteObject(entity);
context.Save();
}
else
{
response.IsError = true;
response.Errors.Add(Error.UserDoesNotHaveAccess);
}
return response;
}
/// <summary>
/// Add new tag to database
/// </summary>
/// <param name="userId">User Identifier</param>
/// <param name="entity">Tag</param>
/// <returns>Tag identifier</returns>
public AddResponse Add(int userId, Tag entity)
{
var addResponse = new AddResponse();
if (entity == null)
{
addResponse.IsError = true;
addResponse.Errors.Add(Error.TagNameHasNotBeenSet);
}
else
{
entity.User = new UserRepository(context).GetById(userId, userId).Object;
context.Tags.AddObject(entity);
context.Save();
addResponse.Id = entity.Id;
}
return addResponse;
}
private void FixupParent(Tag previousValue)
{
if (previousValue != null && previousValue.Children.Contains(this))
{
previousValue.Children.Remove(this);
}
if (Parent != null)
{
if (!Parent.Children.Contains(this))
{
Parent.Children.Add(this);
}
}
}