public async Task <int?> Delete(int id, string userId)
{
Models.Relation raw = await context.Relations.FindAsync(id);
if (raw == null || (userId != null && raw.UserId != userId))
{
return(null);
}
context.Relations.Remove(raw);
await context.SaveChangesAsync();
return(id);
}
public async Task <int?> Create(Relation data, string userId)
{
if ((await parent.NotesProvider.Get(data.From, userId) == null) || (await parent.NotesProvider.Get(data.To, userId) == null))
{
return(null);
}
Models.Relation raw = Models.Relation.FromModel(data);
if (userId != null)
{
raw.UserId = userId;
}
context.Relations.Add(raw);
await context.SaveChangesAsync();
return(raw.Id);
}
public async Task <int?> Update(int id, Relation data, string userId)
{
Models.Relation raw = await context.Relations.FindAsync(id);
if (raw == null || (userId != null && raw.UserId != userId))
{
return(null);
}
Models.Relation value = Models.Relation.FromModel(data);
raw.From = value.From;
raw.To = value.To;
context.Relations.Update(raw);
await context.SaveChangesAsync();
return(raw.Id);
}