private static void ImportAstronomers()
{
using (PlanetHuntersContext context = new PlanetHuntersContext())
{
List <AstronomerDto> astronomerDtos = ParseJson <AstronomerDto>(Constants.AstronomersPath);
foreach (AstronomerDto astronomerDto in astronomerDtos)
{
// We can make the checks for FirstName and LastName like this here, then
// add the entity to the Database and save it with context.SaveChanges() with no errors
// (but with this design we are skipping the attribute validations in the models)
// OR
// In order to use all the attribute validations which we have implemented in the models,
// we can skip the validations here and just use a try-catch construction with Context.SaveChanges
// so can the attributes to work as expected (we have to add the entity to Database in 'try', then remove it in 'catch');
if (astronomerDto.FirstName == null || astronomerDto.FirstName.Length > 50)
{
Console.WriteLine(Messages.Error);
continue;
}
if (astronomerDto.LastName == null || astronomerDto.LastName.Length > 50)
{
Console.WriteLine(Messages.Error);
continue;
}
Astronomer astronomerEntity = new Astronomer()
{
FirstName = astronomerDto.FirstName,
LastName = astronomerDto.LastName
};
HelperMethods.AddAstronomerToDatabase(context, astronomerEntity);
}
}
}
