/// <summary>
/// Updates existing ingredient
/// </summary>
/// <param name="id">ID of the ingredient</param>
/// <param name="ingredientDTO">The Ingredient DTO model with the new properties.</param>
/// <returns>The updated ingredient, DTO</returns>
public async Task <IngredientDTO> UpdateAsync(Guid id, IngredientDTO ingredientDTO)
{
var ingredient = await _context.Ingredients.FindAsync(id);
if (ingredient == null)
{
return(null);
}
try
{
_context.Entry(ingredient).State = EntityState.Modified;
ingredient.Name = ingredientDTO.Name;
ingredient.IsAlcoholic = ingredientDTO.IsAlcoholic;
_context.Update(ingredient);
await _context.SaveChangesAsync();
}
catch (Exception)
{
//TODO: think what to return and when?
if (!IngredientExists(id))
{
return(null);
}
else
{
throw new ArgumentException();
}
}
return(_mapper.MapEntityToDTO(ingredient));
}
/// <summary>
/// Updates existing cocktail
/// </summary>
/// <param name="id">ID of the cocktail</param>
/// <param name="cocktailDTO">The cocktail with the modifications</param>
/// <returns>Cocktail DTO.model</returns>
public async Task <CocktailDTO> UpdateAsync(Guid id, CocktailDTO cocktailDTO)
{
try
{
if (cocktailDTO == null)
{
throw new ArgumentNullException("Cocktail DTO to update is null.");
}
var cocktail = await _context.Cocktails.FindAsync(id);
_context.Entry(cocktail).State = EntityState.Modified;
//cocktail = this._mapper.MapDTOToEntity(cocktailDTO);
cocktail.Id = cocktailDTO.Id;
cocktail.Name = cocktailDTO.Name;
cocktail.Rating = cocktailDTO.Rating;
cocktail.TimesRated = cocktailDTO.TimesRated;
cocktail.ImageSrc = cocktailDTO.ImageSrc;
cocktail.IsDeleted = cocktailDTO.IsDeleted;
cocktail.IsAlcoholic = cocktailDTO.IsAlcoholic;
cocktail.Instructions = cocktailDTO.Instructions;
//remove ingredients
var previousIngredients = _context.CocktailIngredients
.Where(i => i.CocktailId == cocktail.Id)
.AsQueryable();
_context.CocktailIngredients.RemoveRange(previousIngredients);
//add new ingredients
foreach (var item in cocktailDTO.Ingredients)
{
if (item.IngredientId != Guid.Empty)
{
bool isAdded = await AddIngredientsToCocktail(cocktail, item.IngredientId, item.Parts);
if (isAdded == false)
{
throw new OperationCanceledException("Adding cocktail ingredient failed.");
}
}
}
if (cocktail.Ingredients.Select(x => x.Ingredient).Any(i => i.IsAlcoholic))
{
cocktail.IsAlcoholic = true;
}
else
{
cocktail.IsAlcoholic = false;
}
_context.Update(cocktail);
await _context.SaveChangesAsync();
return(_mapper.MapEntityToDTO(cocktail));
}
catch (Exception e)
{
throw new ArgumentNullException();
}
}
