private InternalRelationshipBuilder ConfigureInverseNavigation(
InternalEntityTypeBuilder entityTypeBuilder,
MemberInfo navigationMemberInfo,
InternalEntityTypeBuilder targetEntityTypeBuilder,
InversePropertyAttribute attribute)
{
var entityType = entityTypeBuilder.Metadata;
var targetClrType = targetEntityTypeBuilder.Metadata.ClrType;
var inverseNavigationPropertyInfo = targetEntityTypeBuilder.Metadata.GetRuntimeProperties().Values
.FirstOrDefault(p => string.Equals(p.GetSimpleMemberName(), attribute.Property, StringComparison.OrdinalIgnoreCase));
if (inverseNavigationPropertyInfo == null ||
!FindCandidateNavigationPropertyType(inverseNavigationPropertyInfo).GetTypeInfo()
.IsAssignableFrom(entityType.ClrType.GetTypeInfo()))
{
throw new InvalidOperationException(
CoreStrings.InvalidNavigationWithInverseProperty(
navigationMemberInfo.Name, entityType.DisplayName(), attribute.Property, targetClrType.ShortDisplayName()));
}
if (Equals(inverseNavigationPropertyInfo, navigationMemberInfo))
{
throw new InvalidOperationException(
CoreStrings.SelfReferencingNavigationWithInverseProperty(
navigationMemberInfo.Name,
entityType.DisplayName(),
navigationMemberInfo.Name,
entityType.DisplayName()));
}
// Check for InversePropertyAttribute on the inverseNavigation to verify that it matches.
if (Attribute.IsDefined(inverseNavigationPropertyInfo, typeof(InversePropertyAttribute)))
{
var inverseAttribute = inverseNavigationPropertyInfo.GetCustomAttribute <InversePropertyAttribute>(true);
if (inverseAttribute.Property != navigationMemberInfo.GetSimpleMemberName())
{
throw new InvalidOperationException(
CoreStrings.InversePropertyMismatch(
navigationMemberInfo.Name,
entityType.DisplayName(),
inverseNavigationPropertyInfo.Name,
targetEntityTypeBuilder.Metadata.DisplayName()));
}
}
var referencingNavigationsWithAttribute =
AddInverseNavigation(entityType, navigationMemberInfo, targetEntityTypeBuilder.Metadata, inverseNavigationPropertyInfo);
var ambiguousInverse = FindAmbiguousInverse(
navigationMemberInfo, entityType, entityType.Model, referencingNavigationsWithAttribute);
if (ambiguousInverse != null)
{
var existingInverse = targetEntityTypeBuilder.Metadata.FindNavigation(inverseNavigationPropertyInfo)?.FindInverse();
var existingInverseType = existingInverse?.DeclaringEntityType;
if (existingInverse != null &&
IsAmbiguousInverse(
existingInverse.GetIdentifyingMemberInfo(), existingInverseType, entityType.Model,
referencingNavigationsWithAttribute))
{
var fk = existingInverse.ForeignKey;
if (fk.IsOwnership ||
fk.DeclaringEntityType.Builder.RemoveForeignKey(fk, ConfigurationSource.DataAnnotation) == null)
{
fk.Builder.HasNavigations(
existingInverse.IsDependentToPrincipal() ? PropertyIdentity.None : (PropertyIdentity?)null,
existingInverse.IsDependentToPrincipal() ? (PropertyIdentity?)null : PropertyIdentity.None,
ConfigurationSource.DataAnnotation);
}
}
var existingNavigation = entityType.FindNavigation(navigationMemberInfo);
if (existingNavigation != null)
{
var fk = existingNavigation.ForeignKey;
if (fk.IsOwnership ||
fk.DeclaringEntityType.Builder.RemoveForeignKey(fk, ConfigurationSource.DataAnnotation) == null)
{
fk.Builder.HasNavigations(
existingNavigation.IsDependentToPrincipal() ? PropertyIdentity.None : (PropertyIdentity?)null,
existingNavigation.IsDependentToPrincipal() ? (PropertyIdentity?)null : PropertyIdentity.None,
ConfigurationSource.DataAnnotation);
}
}
var existingAmbiguousNavigation = entityType.Model.FindActualEntityType(ambiguousInverse.Value.Item2)
.FindNavigation(ambiguousInverse.Value.Item1);
if (existingAmbiguousNavigation != null)
{
var fk = existingAmbiguousNavigation.ForeignKey;
if (fk.IsOwnership ||
fk.DeclaringEntityType.Builder.RemoveForeignKey(fk, ConfigurationSource.DataAnnotation) == null)
{
fk.Builder.HasNavigations(
existingAmbiguousNavigation.IsDependentToPrincipal() ? PropertyIdentity.None : (PropertyIdentity?)null,
existingAmbiguousNavigation.IsDependentToPrincipal() ? (PropertyIdentity?)null : PropertyIdentity.None,
ConfigurationSource.DataAnnotation);
}
}
return(entityType.FindNavigation(navigationMemberInfo)?.ForeignKey.Builder);
}
var ownership = entityType.FindOwnership();
if (ownership != null &&
ownership.PrincipalEntityType == targetEntityTypeBuilder.Metadata &&
ownership.PrincipalToDependent?.GetIdentifyingMemberInfo() != inverseNavigationPropertyInfo)
{
Logger.NonOwnershipInverseNavigationWarning(
entityType, navigationMemberInfo,
targetEntityTypeBuilder.Metadata, inverseNavigationPropertyInfo,
ownership.PrincipalToDependent.GetIdentifyingMemberInfo());
return(null);
}
if (entityType.DefiningEntityType != null &&
entityType.DefiningEntityType == targetEntityTypeBuilder.Metadata &&
entityType.DefiningNavigationName != inverseNavigationPropertyInfo.GetSimpleMemberName())
{
Logger.NonDefiningInverseNavigationWarning(
entityType, navigationMemberInfo,
targetEntityTypeBuilder.Metadata, inverseNavigationPropertyInfo,
entityType.DefiningEntityType.GetRuntimeProperties()[entityType.DefiningNavigationName]);
return(null);
}
return(entityType.Model.ShouldBeOwned(entityType.ClrType) &&
!entityType.IsInOwnershipPath(targetEntityTypeBuilder.Metadata)
? targetEntityTypeBuilder.HasOwnership(
entityTypeBuilder.Metadata.ClrType,
inverseNavigationPropertyInfo,
navigationMemberInfo,
ConfigurationSource.Convention)
: targetEntityTypeBuilder.HasRelationship(
entityType,
inverseNavigationPropertyInfo,
navigationMemberInfo,
ConfigurationSource.DataAnnotation));
}
