public async Task <IActionResult> Put(int id, [FromBody] Entities.ShoppingList value)
{
if (value == null || value.Id != id)
{
return(BadRequest());
}
var list = await db.ShoppingLists.Include(l => l.Items).SingleOrDefaultAsync(i => i.Id == id);
if (list == null)
{
return(NotFound());
}
list.Name = value.Name;
list.Items = value.Items;
try
{
db.ShoppingLists.Update(list);
db.SaveChanges();
}
catch (Exception e)
{
}
await notifications.NotifyRefreshList();
return(NoContent());
}
private async Task StoreModifiedListAsync(Entities.ShoppingList existingShoppingListEntity,
IShoppingList shoppingList, CancellationToken cancellationToken)
{
var shoppingListEntityToStore = toEntityConverter.ToEntity(shoppingList);
var onListMappings = existingShoppingListEntity.ItemsOnList.ToDictionary(map => map.ItemId);
dbContext.Entry(shoppingListEntityToStore).State = EntityState.Modified;
foreach (var map in shoppingListEntityToStore.ItemsOnList)
{
cancellationToken.ThrowIfCancellationRequested();
if (onListMappings.TryGetValue(map.ItemId, out var existingMapping))
{
// mapping was modified
map.Id = existingMapping.Id;
dbContext.Entry(map).State = EntityState.Modified;
onListMappings.Remove(map.ItemId);
}
else
{
// mapping was added
dbContext.Entry(map).State = EntityState.Added;
}
}
// mapping was deleted
foreach (var map in onListMappings.Values)
{
dbContext.Entry(map).State = EntityState.Deleted;
}
cancellationToken.ThrowIfCancellationRequested();
await dbContext.SaveChangesAsync();
}
public async Task <IActionResult> Post([FromBody] Entities.ShoppingList value)
{
if (value == null)
{
return(BadRequest());
}
await db.ShoppingLists.AddAsync(value);
await db.SaveChangesAsync();
await notifications.NotifyRefreshList();
return(CreatedAtRoute("GetShoppingList", new { id = value.Id }, value));
}
public async Task NotifyShoppingListUpdated(Entities.ShoppingList item)
{
var group = hub.Clients.Group($"{ShoppingListHub.SHOPPINGLIST_GROUP}{item.Id}");
await group.SendAsync("ShoppingList_Updated", item);
}
