private void ConfigureKey(EntityType entityType)
{
DebugCheck.NotNull(entityType);
if (!_keyProperties.Any())
{
return;
}
if (entityType.BaseType != null)
{
throw Error.KeyRegisteredOnDerivedType(ClrType, entityType.GetRootType().GetClrType());
}
var keyProperties = _keyProperties.AsEnumerable();
if (!_isKeyConfigured)
{
var primaryKeys
= from p in _keyProperties
select new
{
PropertyInfo = p,
Property(new PropertyPath(p)).ColumnOrder
};
if ((_keyProperties.Count > 1)
&& primaryKeys.Any(p => !p.ColumnOrder.HasValue))
{
throw Error.ModelGeneration_UnableToDetermineKeyOrder(ClrType);
}
keyProperties = primaryKeys.OrderBy(p => p.ColumnOrder).Select(p => p.PropertyInfo);
}
foreach (var keyProperty in keyProperties)
{
var property = entityType.GetDeclaredPrimitiveProperty(keyProperty);
if (property == null)
{
throw Error.KeyPropertyNotFound(keyProperty.Name, entityType.Name);
}
property.Nullable = false;
entityType.AddKeyMember(property);
}
}
