public async Task <FoodDescription> UpdateOrAddFoodDescriptionAsync(IWorkUnit workUnit, FoodDescription foodDescription)
{
if (workUnit == null)
{
throw new ArgumentNullException("workUnit");
}
if (foodDescription == null)
{
throw new ArgumentNullException("foodDescription");
}
var exists = await workUnit.Collection <FoodDescription>()
.Select(f => f.Id)
.FirstOrDefaultAsync(n => n == foodDescription.Id);
workUnit.GetContext <FoodContext>().Entry(foodDescription).State =
exists == null ? EntityState.Added : EntityState.Modified;
return(foodDescription);
}
public async Task<FoodDescription> UpdateOrAddFoodDescriptionAsync(IWorkUnit workUnit, FoodDescription foodDescription)
{
if (workUnit == null)
{
throw new ArgumentNullException("workUnit");
}
if (foodDescription == null)
{
throw new ArgumentNullException("foodDescription");
}
var exists = await workUnit.Collection<FoodDescription>()
.Select(f => f.Id)
.FirstOrDefaultAsync(n => n == foodDescription.Id);
workUnit.GetContext<FoodContext>().Entry(foodDescription).State =
exists == null ? EntityState.Added : EntityState.Modified;
return foodDescription;
}
public async Task <bool> DeleteFoodDescriptionAsync(IWorkUnit workUnit, string id)
{
if (string.IsNullOrWhiteSpace(id))
{
throw new ArgumentNullException("id");
}
if (workUnit == null)
{
throw new ArgumentNullException("workUnit");
}
var ctx = workUnit.GetContext <FoodContext>();
var foodItem = await ctx.FoodDescriptions.FirstOrDefaultAsync(
f => f.Id == id);
if (foodItem != null)
{
ctx.Entry(foodItem).State = EntityState.Deleted;
}
return(true);
}
public async Task<bool> DeleteFoodDescriptionAsync(IWorkUnit workUnit, string id)
{
if (string.IsNullOrWhiteSpace(id))
{
throw new ArgumentNullException("id");
}
if (workUnit == null)
{
throw new ArgumentNullException("workUnit");
}
var ctx = workUnit.GetContext<FoodContext>();
var foodItem = await ctx.FoodDescriptions.FirstOrDefaultAsync(
f => f.Id == id);
if (foodItem != null)
{
ctx.Entry(foodItem).State = EntityState.Deleted;
}
return true;
}