private async Task <T> AddOrUpdateItem <T>(T item, Func <T, object[]> keysFunc, UpdateFunc <T> updater)
where T : class
{
if (item == null)
{
throw new ArgumentNullException(nameof(item));
}
if (keysFunc == null)
{
throw new ArgumentNullException(nameof(keysFunc));
}
if (updater == null)
{
throw new ArgumentNullException(nameof(updater));
}
// Try to find the item
var foundItem = await _context.Set <T>().FindAsync(keysFunc(item));
if (foundItem != null)
{
var entry = _context.Entry(foundItem);
if (entry.State == EntityState.Added)
{
return(foundItem);
}
entry.State = EntityState.Modified;
updater(foundItem, item, entry);
return(foundItem);
}
_context.Add(item);
return(item);
}
/// <inheritdoc />
public async Task SaveUserData(UserSaveDataDto data)
{
// Get the user
User user;
var baseQuery = _context.Users.Include(u => u.UserPrimeItemSaveData).Include(u => u.UserPrimePartIngredientSaveData);
if (_userData.IsAnonymous)
{
user = await baseQuery.FirstOrDefaultAsync(u => u.AnonymousId == _userData.AnonymousId);
if (user == null)
{
user = new User()
{
AnonymousId = _userData.AnonymousId,
UserPrimeItemSaveData = new List <UserPrimeItemSaveData>(),
UserPrimePartIngredientSaveData = new List <UserPrimePartIngredientSaveData>(),
};
_context.Users.Add(user);
}
}
else
{
user = await baseQuery.FirstOrDefaultAsync(u => u.Email == _userData.Email);
}
// Clear all user data
user.UserPrimeItemSaveData.Clear();
user.UserPrimePartIngredientSaveData.Clear();
// Fill 'er up again
foreach (var primeItem in data.PrimeItems)
{
if (primeItem.Value.IsChecked)
{
user.UserPrimeItemSaveData.Add(new UserPrimeItemSaveData()
{
UserId = user.Id,
PrimeItemId = primeItem.Key,
IsChecked = primeItem.Value.IsChecked,
});
}
foreach (var primePart in primeItem.Value.PrimePartIngredients)
{
if (primePart.Value.CheckedCount > 0)
{
user.UserPrimePartIngredientSaveData.Add(new UserPrimePartIngredientSaveData()
{
UserId = user.Id,
PrimePartIngredientId = primePart.Key,
CheckedCount = primePart.Value.CheckedCount,
});
}
}
}
// Make sure User gets updated
_context.Entry(user).State = EntityState.Modified;
// Save
await _context.SaveChangesAsync();
}