public async Task <Country> Create(Country country)
{
if (string.IsNullOrWhiteSpace(country.Name) || string.IsNullOrWhiteSpace(country.Population))
{
return(null);
}
var newCountry = new Country()
{
Name = country.Name,
Population = country.Population,
Cities = country.Cities
};
if (newCountry == null)
{
return(null);
}
await _db.Countries.AddAsync(newCountry);
await _db.SaveChangesAsync();
return(newCountry);
}
public async Task <CityWithCountryVM> Create(City city, Guid?countryId)
{
if (string.IsNullOrWhiteSpace(city.Name) || string.IsNullOrWhiteSpace(city.Population))
{
return(null);
}
Country country = new Country();
country = null;
if (countryId != null)
{
country = await _db.Countries.SingleOrDefaultAsync(x => x.Id == countryId);
if (country == null)
{
return(null);
}
}
var newCity = new City()
{
Name = city.Name,
Population = city.Population,
People = city.People,
Country = country
};
var cityVM = new CityWithCountryVM()
{
City = newCity,
CountryId = country.Id,
CountryName = country.Name,
};
if (cityVM == null)
{
return(null);
}
await _db.Cities.AddAsync(cityVM.City);
await _db.SaveChangesAsync();
cityVM.City.Country = null;
return(cityVM);
}
public async Task <Person> Create(Person person, Guid?cityId)
{
if (string.IsNullOrWhiteSpace(person.FirstName) ||
string.IsNullOrWhiteSpace(person.LastName) ||
string.IsNullOrWhiteSpace(person.Email) ||
string.IsNullOrWhiteSpace(person.Gender) ||
string.IsNullOrWhiteSpace(person.PhoneNumber))
{
return(null);
}
City city = new City();
city = null;
// Checks if the user picked a city when creating a person. If the user did, then it'll try to
// Find the chosen city, if the city doesn't exist however, it returns a null.
if (cityId != null)
{
city = await _db.Cities.SingleOrDefaultAsync(x => x.Id == cityId);
if (city == null)
{
return(null);
}
}
var newPerson = new Person()
{
FirstName = person.FirstName,
LastName = person.LastName,
Age = person.Age,
Email = person.Email,
PhoneNumber = person.PhoneNumber,
Gender = person.Gender,
City = city
};
if (newPerson == null)
{
return(null);
}
await _db.People.AddAsync(newPerson);
await _db.SaveChangesAsync();
return(newPerson);
}