/// <summary>
/// Adds the breed to the context, without sub breeds.
/// </summary>
/// <param name="breedName">Name of breed we are adding.</param>
/// <param name="dataContext">Data context we are adding the breed to</param>
public static void PopulateDbContextWithNewDogBreed(string breedName, DogBreedContext dataContext)
{
DogBreedItem dogBreed = new DogBreedItem
{
BreedName = breedName
};
dataContext.DogBreedItemList.Add(dogBreed);
dataContext.SaveChanges();
}
public async Task <ActionResult <DogBreedItem> > PutBreed(long id, DogBreedItem dogBreedItem)
{
if (id != dogBreedItem.DogBreedItemId)
{
return(BadRequest());
}
dataContext.Entry(dogBreedItem).State = EntityState.Modified;
await dataContext.SaveChangesAsync();
return(Ok());
}
/// <summary>
/// Creates all sub-breeds and saves them in the context handed to it.
/// </summary>
/// <param name="dogSubbreedArray"></param>
/// <param name="parentBreedId">Id of the breed this sub breed belongs to</param>
/// <param name="dataContext">Data context we are adding the dog to</param>
public static void PopulateDbContextWithNewDogBreedSubbreeds(string[] dogSubbreedArray, long parentBreedId, DogBreedContext dataContext)
{
DogBreedItem parentBreed = dataContext.DogBreedItemList.Find(parentBreedId);
foreach (string subBreedName in dogSubbreedArray)
{
DogSubBreed subBreed = new DogSubBreed()
{
ParentBreedId = parentBreedId, SubBreedName = subBreedName
};
dataContext.DogSubBreedItemList.Add(subBreed);
}
//Now save DB context so that we can retreive them with a generated ID.
dataContext.SaveChanges();
//Build a list of all sub breeds where the sub-subbreed's parent ID is the parent Id we're looking for.
List <DogSubBreed> subBreeds = dataContext.DogSubBreedItemList.Where(x => x.ParentBreedId == parentBreedId).ToList();
//set it in the context using our reference
dataContext.DogBreedItemList.Find(parentBreedId).SubBreeds = subBreeds;
dataContext.SaveChanges();
}
public async Task <ActionResult <DogBreedItem> > PostBreed(DogBreedItem dogBreed)
{
try
{
//Validate breed details
if (dataContext.DogBreedItemList.Any(x => x.BreedName == dogBreed.BreedName))
{
return(UnprocessableEntity($"\"Error\" : \"Breed Name {dogBreed.BreedName} already exists.\""));
}
if (dogBreed.BreedName == "" || dogBreed.BreedName == null)
{
return(UnprocessableEntity("\"Error\" : \"Please provide a 'breedName' property, and non-empty string value.\""));
}
bool emptySubBreedList = false;
//Validate subbreed details
///If we have nothing in the payload for subbreeds, create an empty list for it.
if (dogBreed.SubBreeds == null)
{
dogBreed.SubBreeds = new List <DogSubBreed>();
emptySubBreedList = true;
}
if (!emptySubBreedList)
{
if (dogBreed.SubBreeds.Count != 0)
{
foreach (var x in dogBreed.SubBreeds)
{
if (x.SubBreedName == "" || x.SubBreedName == null)
{
return(UnprocessableEntity("\"Error\" : \"Please provide a 'subBreedName' property on each sub-breed, and non-empty string value.\""));
}
}
}
}
var hashSet1 = new HashSet <string>();
if (!dogBreed.SubBreeds.All(subBreed => hashSet1.Add(subBreed.SubBreedName)))
{
return(UnprocessableEntity($"\"Error\" : \"Sub-breed name {hashSet1.Last()} is duplicated within the same breed. Please ensure sub-breed values are unique within the breed.\""));
}
//Save dog breed to context when we've verified it has a unique name
dataContext.DogBreedItemList.Add(dogBreed);
await dataContext.SaveChangesAsync();
//If we've got sub-breeds
if (dogBreed.SubBreeds.Count != 0)
{
//Set subbreed parentId to the Id that got generated when the parent was saved to the database.
dogBreed = dataContext.DogBreedItemList.First(x => x.BreedName == dogBreed.BreedName);
dogBreed.SubBreeds.ForEach(x => x.ParentBreedId = dogBreed.DogBreedItemId);
await dataContext.SaveChangesAsync();
}
//Return object we successfully built
return(Created($"api/dogbreed/{dogBreed.DogBreedItemId}", dataContext.DogBreedItemList.Find(dogBreed.DogBreedItemId)));
}
catch
{
dataContext.DogBreedItemList.Remove(dogBreed);
await dataContext.SaveChangesAsync();
return(UnprocessableEntity("Could not process. Check your formatting for missing parenthesis and list seperators."));
}
}
