public ActionResult Create([FromBody] KnuthMorrisPrattUpdateDto knuthMorrisPrattUpdateDto)
{
var knuthMorrisPrattInput = _mapper.Map <KnuthMorrisPrattInput>(knuthMorrisPrattUpdateDto);
//Check that the user is not trying to create an input set with a name that already exists for the user.
var inputSetWithNameExists = (from input in _dbContext.KnuthMorrisPrattInputs
join owner in _dbContext.KnuthMorrisPrattInputOwners on input.KnuthMorrisPrattInputId equals owner.KnuthMorrisPrattInputId into inputs
from i in inputs
where i.AspNetUserId == _userManager.GetUserId(User) && input.Name == knuthMorrisPrattInput.Name
select i).Any();
if (inputSetWithNameExists)
{
return(StatusCode(405)); //Wrong method for updating an existing input set - use PUT.
}
//Check that the user does not already have 10 input sets saved.
var kmpInputCount = _dbContext.KnuthMorrisPrattInputOwners.Where(o => o.AspNetUserId == _userManager.GetUserId(User)).Count();
if (kmpInputCount >= 10)
{
return(StatusCode(403));
}
//Try to add the input set.
var transaction = _dbContext.Database.BeginTransaction();
try
{
_dbContext.KnuthMorrisPrattInputs.Add(knuthMorrisPrattInput);
_dbContext.SaveChanges();
_dbContext.KnuthMorrisPrattInputOwners.Add(new KnuthMorrisPrattInputOwner()
{
AspNetUserId = _userManager.GetUserId(User),
KnuthMorrisPrattInputId = knuthMorrisPrattInput.KnuthMorrisPrattInputId
});
_dbContext.SaveChanges();
transaction.Commit();
}
catch
{
return(StatusCode(500));
}
var knuthMorrisPrattReadDto = _mapper.Map <KnuthMorrisPrattReadDto>(knuthMorrisPrattInput);
knuthMorrisPrattReadDto.IsOwnedByUser = true;
return(CreatedAtAction(nameof(GetById), knuthMorrisPrattReadDto));
}
public ActionResult Update(int id, [FromBody] KnuthMorrisPrattUpdateDto knuthMorrisPrattUpdateDto)
{
if (!IsInputSetOwnedByUser(id))
{
return(Forbid());
}
var existingKmpInput = _dbContext.KnuthMorrisPrattInputs.First(k => k.KnuthMorrisPrattInputId == id);
_dbContext.Entry(existingKmpInput).CurrentValues.SetValues(knuthMorrisPrattUpdateDto);
_dbContext.SaveChanges();
return(Ok());
}