public async Task <IActionResult> Create(GroupCreateEditViewModel model)
{
if (!ModelState.IsValid)
{
var info = this.GetGroupInfo(model.GroupType);
ViewData["GroupDescriptions"] = info.ToDictionary(i => i.Id, i => i.Description);
return(View("CreateEdit", model));
}
this.livestockDb.AdmuGroup.Add(model.Group);
await this.livestockDb.SaveChangesAsync();
await this.AddToGroup(model.Group, model.SelectedMemberIds);
return(RedirectToAction("Index"));
}
public async Task <IActionResult> Edit(GroupCreateEditViewModel model)
{
if (!ModelState.IsValid)
{
var info = this.GetGroupInfo(model.GroupType);
ViewData["GroupDescriptions"] = info.ToDictionary(i => i.Id, i => i.Description);
return(View("CreateEdit", model));
}
this.livestockDb.Update(model.Group);
// First, remove any that no longer are needed.
var maps = this.GetMappingInfo(model.Group);
var ids = model.SelectedMemberIds.ToList(); // We need it as a list so we can use .Remove
foreach (var id in maps.Select(m => m.DataId).ToList()) // We're removing things, so we need to cache the data in a list first.
{
if (!ids.Contains(id))
{
if (model.Group.GroupType == AdmuGroupEntityTypes.Critter)
{
await this.data.MultiReference <Critter>().RemoveByIdAsync(model.Group, id);
}
else if (model.Group.GroupType == AdmuGroupEntityTypes.User)
{
await this.data.MultiReference <User>().RemoveByIdAsync(model.Group, id);
}
else
{
throw new InvalidOperationException();
}
}
// Remove the id from the list, since we either deleted it, or we're not changing it at all.
ids.Remove(id);
}
// Finally, add in anything new.
await this.AddToGroup(model.Group, ids);
await this.livestockDb.SaveChangesAsync();
return(RedirectToAction("Index"));
}