private async Task <TData> UpdateAsync(string id, Delta <TData> patch, bool includeDeleted)
{
if (id == null)
{
throw new ArgumentNullException("id");
}
if (patch == null)
{
throw new ArgumentNullException("patch");
}
TData current = await this.Lookup(id, includeDeleted).Queryable.FirstOrDefaultAsync();
if (current == null)
{
throw new HttpResponseException(this.Request.CreateNotFoundResponse());
}
// Set the original version based on etag (if present)
byte[] patchVersion = patch.GetPropertyValueOrDefault <TData, byte[]>(TableUtils.VersionPropertyName);
if (patchVersion != null)
{
this.context.Entry(current).OriginalValues[TableUtils.VersionPropertyName] = patchVersion;
}
// Apply the patch and verify that keys match (keys can't change as part of an update)
patch.Patch(current);
this.VerifyUpdatedKey(id, current);
await this.SubmitChangesAsync();
return(current);
}
protected virtual async Task <TData> UpdateEntityAsync(Delta <TData> patch, bool includeDeleted, params object[] keys)
{
if (patch == null)
{
throw new ArgumentNullException("patch");
}
if (keys == null)
{
throw new ArgumentNullException("keys");
}
TModel model = await this.Context.Set <TModel>().FindAsync(keys);
if (model == null)
{
throw new HttpResponseException(this.Request.CreateNotFoundResponse());
}
TData data = Mapper.Map <TModel, TData>(model);
if (!includeDeleted && data.Deleted)
{
throw new HttpResponseException(this.Request.CreateNotFoundResponse());
}
// Set the original version based on etag (if present)
byte[] patchVersion = patch.GetPropertyValueOrDefault <TData, byte[]>(TableUtils.VersionPropertyName);
if (patchVersion != null)
{
this.SetOriginalVersion(model, patchVersion);
}
patch.Patch(data);
Mapper.Map <TData, TModel>(data, model);
await this.SubmitChangesAsync();
return(Mapper.Map <TData>(model));
}