public async Task <CustomerTypeDto> UpdateCustomerType(int id, CustomerTypeDto customerTypeDto)
{
using (CellularCompanyContext db = new CellularCompanyContext())
{
try
{
if (id != customerTypeDto.CustomerTypeId)
{
return(null);
}
else
{
CustomerType ct = db.CustomerTypes.FirstOrDefault(c => c.CustomerTypeId == id);
if (ct == null)
{
return(null);
}
else
{
ct = customerTypeDto.ToModel();
db.Entry(ct).State = System.Data.Entity.EntityState.Modified;
await db.SaveChangesAsync();
return(ct.ToDto());
}
}
}
catch (Exception ex)
{
Debug.WriteLine(ex.Message);
return(null);
}
}
}
public async Task <CustomerTypeDto> DeleteCustomerType(int id)
{
using (CellularCompanyContext db = new CellularCompanyContext())
{
try
{
CustomerType customerType = await db.CustomerTypes.FindAsync(id);
if (customerType == null)
{
return(null);
}
else
{
db.CustomerTypes.Remove(customerType);
await db.SaveChangesAsync();
return(customerType.ToDto());
}
}
catch (Exception ex)
{
Debug.WriteLine(ex.Message);
return(null);
}
}
}
public async Task <CustomerTypeDto> GetCustomerType(int id)
{
using (CellularCompanyContext db = new CellularCompanyContext())
{
try
{
CustomerType customerType = await db.CustomerTypes.FindAsync(id);
return(customerType.ToDto());
}
catch (Exception ex)
{
Debug.WriteLine(ex.Message);
return(null);
}
}
}