public IHttpActionResult Post([FromBody] List <CreateDemographicModel> commands)
{
if (commands == null || !commands.Any() || !ModelState.IsValid)
{
return(this.Error().InvalidParameters());
}
if (commands.Any(cmd => cmd is null))
{
return(this.Error().InvalidParameters("Demographics cannot be null"));
}
if (commands.Select(c => c.ExternalRef).Distinct().Count() != commands.Count)
{
return(this.Error().InvalidParameters("ExternalRef must be unique"));
}
if (commands.Any(c => String.IsNullOrEmpty(c.ExternalRef)))
{
return(this.Error().InvalidParameters("ExternalRef is not set"));
}
var externalRefs = commands.Select(x => x.ExternalRef).ToList();
var existingDemographic = _demographicRepository.GetByExternalRef(externalRefs);
var addDemographic = commands.Where(c => existingDemographic.All(ex => ex.ExternalRef != c.ExternalRef));
_demographicRepository.Add(_mapper.Map <IEnumerable <Demographic> >(addDemographic));
var updateDemographic = existingDemographic.Select(updated =>
{
var changes = commands.First(ex => ex.ExternalRef == updated.ExternalRef);
_mapper.Map(changes, updated);
return(updated);
});
_demographicRepository.UpdateRange(updateDemographic);
_demographicRepository.SaveChanges();
return(Ok());
}