public virtual Navigation AddNavigation([NotNull] string name, [NotNull] ForeignKey foreignKey, bool pointsToPrincipal)
{
Check.NotEmpty(name, nameof(name));
Check.NotNull(foreignKey, nameof(foreignKey));
var duplicateNavigation = FindNavigationsInHierarchy(name).FirstOrDefault();
if (duplicateNavigation != null)
{
throw new InvalidOperationException(CoreStrings.DuplicateNavigation(name, DisplayName(), duplicateNavigation.DeclaringEntityType.DisplayName()));
}
var duplicateProperty = FindPropertiesInHierarchy(name).FirstOrDefault();
if (duplicateProperty != null)
{
throw new InvalidOperationException(CoreStrings.ConflictingProperty(name, DisplayName(),
duplicateProperty.DeclaringEntityType.DisplayName()));
}
var otherNavigation = Navigations.FirstOrDefault(
n => n.ForeignKey == foreignKey &&
n.PointsToPrincipal() == pointsToPrincipal);
if (otherNavigation != null)
{
throw new InvalidOperationException(CoreStrings.MultipleNavigations(name, otherNavigation.Name, Name));
}
var declaringTypeFromFk = pointsToPrincipal
? foreignKey.DeclaringEntityType
: foreignKey.PrincipalEntityType;
if (declaringTypeFromFk != this)
{
throw new InvalidOperationException(CoreStrings.NavigationOnWrongEntityType(name, Name, declaringTypeFromFk.Name));
}
Navigation.IsCompatible(
name,
this,
pointsToPrincipal ? foreignKey.PrincipalEntityType : foreignKey.DeclaringEntityType,
!pointsToPrincipal && !((IForeignKey)foreignKey).IsUnique,
shouldThrow: true);
var navigation = new Navigation(name, foreignKey);
_navigations.Add(name, navigation);
if (pointsToPrincipal)
{
foreignKey.DependentToPrincipal = navigation;
}
else
{
foreignKey.PrincipalToDependent = navigation;
}
return(navigation);
}
public INavigation TryGetNavigation([NotNull] string name)
{
return(Navigations.FirstOrDefault(p => p.Name == name));
}
public virtual Navigation TryGetNavigation([NotNull] string name)
{
Check.NotEmpty(name, "name");
return(Navigations.FirstOrDefault(n => Matches(n, name)));
}
public virtual Navigation AddNavigation([NotNull] string name, [NotNull] ForeignKey foreignKey, bool pointsToPrincipal)
{
Check.NotEmpty(name, nameof(name));
Check.NotNull(foreignKey, nameof(foreignKey));
if (FindNavigationCollisions(new[] { name }).Any())
{
throw new InvalidOperationException(Strings.DuplicateNavigation(name, Name));
}
var otherNavigation = Navigations.FirstOrDefault(
n => n.ForeignKey == foreignKey &&
n.PointsToPrincipal() == pointsToPrincipal);
if (otherNavigation != null)
{
throw new InvalidOperationException(Strings.MultipleNavigations(name, otherNavigation.Name, Name));
}
var declaringTypeFromFk = pointsToPrincipal
? foreignKey.DeclaringEntityType
: foreignKey.PrincipalEntityType;
if (declaringTypeFromFk != this)
{
throw new InvalidOperationException(Strings.NavigationOnWrongEntityType(name, Name, declaringTypeFromFk.Name));
}
var navigation = new Navigation(name, foreignKey);
_navigations.Add(name, navigation);
if (pointsToPrincipal)
{
foreignKey.DependentToPrincipal = navigation;
}
else
{
foreignKey.PrincipalToDependent = navigation;
}
if (!HasClrType)
{
throw new InvalidOperationException(Strings.NavigationOnShadowEntity(navigation.Name, Name));
}
var clrProperty = ClrType.GetPropertiesInHierarchy(navigation.Name).FirstOrDefault();
if (clrProperty == null)
{
throw new InvalidOperationException(Strings.NoClrNavigation(navigation.Name, Name));
}
var targetType = navigation.GetTargetType();
if (!targetType.HasClrType)
{
throw new InvalidOperationException(Strings.NavigationToShadowEntity(navigation.Name, Name, targetType.Name));
}
var targetClrType = targetType.ClrType;
Debug.Assert(targetClrType != null, "targetClrType != null");
if (navigation.IsCollection())
{
var elementType = clrProperty.PropertyType.TryGetSequenceType();
if (elementType == null ||
!elementType.GetTypeInfo().IsAssignableFrom(targetClrType.GetTypeInfo()))
{
throw new InvalidOperationException(Strings.NavigationCollectionWrongClrType(
navigation.Name, Name, clrProperty.PropertyType.FullName, targetClrType.FullName));
}
}
else if (!clrProperty.PropertyType.GetTypeInfo().IsAssignableFrom(targetClrType.GetTypeInfo()))
{
throw new InvalidOperationException(Strings.NavigationSingleWrongClrType(
navigation.Name, Name, clrProperty.PropertyType.FullName, targetClrType.FullName));
}
return(navigation);
}
