/// <summary>
/// Adds the specified country.
/// </summary>
/// <param name="country">The country to add.</param>
/// <returns>The success or failure of the addition.</returns>
public ManagerResponse Add(Country country)
{
ManagerResponse response = ValidateCountryEntity(country, true);
if (response != ManagerResponse.Success)
{
return response;
}
using (var context = ObjectContextFactory.CreateObjectContext())
{
var objectSet = context.CreateObjectSet<Country>();
objectSet.AddObject(country);
response = context.SaveChanges() == 1 ? ManagerResponse.Success : ManagerResponse.UnknownFailure;
}
return response;
}
private void FixupCountry(Country previousValue)
{
if (previousValue != null && previousValue.Locations.Contains(this))
{
previousValue.Locations.Remove(this);
}
if (Country != null)
{
if (!Country.Locations.Contains(this))
{
Country.Locations.Add(this);
}
if (CountryId != Country.Id)
{
CountryId = Country.Id;
}
}
else if (!_settingFK)
{
CountryId = null;
}
}
/// <summary>
/// Validates the members of the specified country entity.
/// </summary>
/// <param name="country">The country.</param>
/// <param name="isNewEntity">If set to <c>true</c> the entity represents a new country.</param>
/// <returns>A response indicating the validity of the <paramref name="country"/>.</returns>
private static ManagerResponse ValidateCountryEntity(Country country, bool isNewEntity)
{
const int maximumName = 50;
// Validate all country entity members
if (country == null)
return ManagerResponse.MissingData;
if (isNewEntity)
{
if (country.Id != 0)
return ManagerResponse.InvalidData;
}
else
{
if (country.Id <= 0)
return ManagerResponse.InvalidData;
}
if (String.IsNullOrWhiteSpace(country.Name) || (country.Name.Length > maximumName))
return ManagerResponse.InvalidData;
foreach (State state in country.States)
{
if (String.IsNullOrWhiteSpace(state.Name) || (state.Name.Length > maximumName))
return ManagerResponse.InvalidData;
if (state.CountryId <= 0)
return ManagerResponse.InvalidData;
}
return ManagerResponse.Success;
}
/// <summary>
/// Updates the specified country.
/// </summary>
/// <param name="country">The country to update.</param>
/// <returns>The success or failure of the update.</returns>
public ManagerResponse Update(Country country)
{
// Validate parameters
ManagerResponse response = ValidateCountryEntity(country, false);
if (response != ManagerResponse.Success)
{
return response;
}
using (var context = ObjectContextFactory.CreateObjectContext())
{
var objectSet = context.CreateObjectSet<Country>();
objectSet.Single(c => c.Id == country.Id);
objectSet.ApplyCurrentValues(country);
response = context.SaveChanges() == 1 ? ManagerResponse.Success : ManagerResponse.UnknownFailure;
}
return response;
}