private IConventionForeignKeyBuilder?ConfigureInverseNavigation(
IConventionEntityTypeBuilder entityTypeBuilder,
MemberInfo navigationMemberInfo,
IConventionEntityTypeBuilder 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 ||
!Dependencies.MemberClassifier.FindCandidateNavigationPropertyType(inverseNavigationPropertyInfo) !
.IsAssignableFrom(entityType.ClrType))
{
throw new InvalidOperationException(
CoreStrings.InvalidNavigationWithInverseProperty(
navigationMemberInfo.Name, entityType.DisplayName(), attribute.Property, targetClrType.ShortDisplayName()));
}
if (Equals(inverseNavigationPropertyInfo, navigationMemberInfo))
{
throw new InvalidOperationException(
CoreStrings.SelfReferencingNavigationWithInverseProperty(
entityType.DisplayName(),
navigationMemberInfo.Name));
}
// Check for InversePropertyAttribute on the inverse navigation 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, referencingNavigationsWithAttribute);
var baseType = targetEntityTypeBuilder.Metadata.BaseType;
while (ambiguousInverse == null &&
baseType != null)
{
var navigationMap = GetInverseNavigations(baseType);
if (navigationMap != null &&
navigationMap.TryGetValue(inverseNavigationPropertyInfo.Name, out var inverseTuple))
{
referencingNavigationsWithAttribute = inverseTuple.References;
ambiguousInverse = FindAmbiguousInverse(navigationMemberInfo, entityType, referencingNavigationsWithAttribute);
}
baseType = baseType.BaseType;
}
if (ambiguousInverse != null)
{
if (entityType.FindSkipNavigation(navigationMemberInfo) is IConventionSkipNavigation existingSkipNavigation)
{
var existingSkipNavigationInverse = existingSkipNavigation.Inverse;
var inverseSkipNavigation = targetEntityTypeBuilder.Metadata.FindSkipNavigation(inverseNavigationPropertyInfo);
var existingInverse = inverseSkipNavigation?.Inverse;
var existingInverseType = existingInverse?.DeclaringEntityType;
if (existingInverse != null &&
IsAmbiguousInverse(
existingInverse.GetIdentifyingMemberInfo() !, existingInverseType !, referencingNavigationsWithAttribute))
{
existingInverse.DeclaringEntityType.Builder.HasNoSkipNavigation(existingInverse, fromDataAnnotation: true);
inverseSkipNavigation !.DeclaringEntityType.Builder.HasNoSkipNavigation(
inverseSkipNavigation, fromDataAnnotation: true);
}
if (existingSkipNavigation.IsInModel)
{
entityType.Builder.HasNoSkipNavigation(existingSkipNavigation, fromDataAnnotation: true);
}
if (existingSkipNavigationInverse?.IsInModel == true)
{
existingSkipNavigationInverse.DeclaringEntityType.Builder
.HasNoSkipNavigation(existingSkipNavigationInverse, fromDataAnnotation: true);
}
var existingAmbiguousNavigation = FindActualEntityType(ambiguousInverse.Value.Item2) !
.FindSkipNavigation(ambiguousInverse.Value.Item1);
if (existingAmbiguousNavigation != null)
{
existingAmbiguousNavigation.DeclaringEntityType.Builder.HasNoSkipNavigation(
existingAmbiguousNavigation, fromDataAnnotation: true);
}
return(entityType.FindSkipNavigation(navigationMemberInfo)?.ForeignKey !.Builder);
}
else
{
var existingInverse = targetEntityTypeBuilder.Metadata.FindNavigation(inverseNavigationPropertyInfo)?.Inverse;
var existingInverseType = existingInverse?.DeclaringEntityType;
if (existingInverse != null &&
IsAmbiguousInverse(
existingInverse.GetIdentifyingMemberInfo() !, existingInverseType !, referencingNavigationsWithAttribute))
{
var fk = existingInverse.ForeignKey;
if (fk.IsOwnership ||
fk.DeclaringEntityType.Builder.HasNoRelationship(fk, fromDataAnnotation: true) == null)
{
fk.Builder.HasNavigation(
(string?)null,
existingInverse.IsOnDependent,
fromDataAnnotation: true);
}
}
var existingNavigation = entityType.FindNavigation(navigationMemberInfo);
if (existingNavigation != null)
{
var fk = existingNavigation.ForeignKey;
if (fk.IsOwnership ||
fk.DeclaringEntityType.Builder.HasNoRelationship(fk, fromDataAnnotation: true) == null)
{
fk.Builder.HasNavigation(
(string?)null,
existingNavigation.IsOnDependent,
fromDataAnnotation: true);
}
}
var existingAmbiguousNavigation = FindActualEntityType(ambiguousInverse.Value.Item2) !
.FindNavigation(ambiguousInverse.Value.Item1);
if (existingAmbiguousNavigation != null)
{
var fk = existingAmbiguousNavigation.ForeignKey;
if (fk.IsOwnership ||
fk.DeclaringEntityType.Builder.HasNoRelationship(fk, fromDataAnnotation: true) == null)
{
fk.Builder.HasNavigation(
(string?)null,
existingAmbiguousNavigation.IsOnDependent,
fromDataAnnotation: true);
}
}
return(entityType.FindNavigation(navigationMemberInfo)?.ForeignKey.Builder);
}
}
var ownership = entityType.FindOwnership();
if (ownership != null &&
ownership.PrincipalEntityType == targetEntityTypeBuilder.Metadata &&
ownership.PrincipalToDependent?.GetIdentifyingMemberInfo() != inverseNavigationPropertyInfo)
{
Dependencies.Logger.NonOwnershipInverseNavigationWarning(
entityType, navigationMemberInfo,
targetEntityTypeBuilder.Metadata, inverseNavigationPropertyInfo,
ownership.PrincipalToDependent?.GetIdentifyingMemberInfo() !);
return(null);
}
if (entityType.Model.IsOwned(entityType.ClrType) &&
!entityType.IsInOwnershipPath(targetEntityTypeBuilder.Metadata))
{
if (navigationMemberInfo.DeclaringType != entityType.ClrType &&
(entityType.Model.FindEntityTypes(navigationMemberInfo.DeclaringType !).Any() ||
(navigationMemberInfo.DeclaringType != entityType.ClrType.BaseType &&
entityType.Model.FindEntityTypes(entityType.ClrType.BaseType !).Any())))
{
return(null);
}
return(targetEntityTypeBuilder.HasOwnership(
entityTypeBuilder.Metadata.ClrType !,
inverseNavigationPropertyInfo,
navigationMemberInfo,
fromDataAnnotation: true));
}
var newForeignKeyBuilder = targetEntityTypeBuilder.HasRelationship(
entityType,
inverseNavigationPropertyInfo,
navigationMemberInfo,
fromDataAnnotation: true);
if (newForeignKeyBuilder == null &&
navigationMemberInfo is PropertyInfo navigationPropertyInfo)
{
var navigationTargetType = navigationPropertyInfo.PropertyType.TryGetSequenceType();
var inverseNavigationTargetType = inverseNavigationPropertyInfo.PropertyType.TryGetSequenceType();
if (navigationTargetType != null &&
inverseNavigationTargetType != null &&
navigationTargetType.IsAssignableFrom(targetClrType) &&
inverseNavigationTargetType.IsAssignableFrom(entityType.ClrType))
{
entityTypeBuilder.HasSkipNavigation(
navigationPropertyInfo, targetEntityTypeBuilder.Metadata,
inverseNavigationPropertyInfo, collections: true, onDependent: false, fromDataAnnotation: true);
}
}
return(newForeignKeyBuilder);
}
private IConventionForeignKeyBuilder?ConfigureInverseNavigation(
IConventionEntityTypeBuilder entityTypeBuilder,
MemberInfo navigationMemberInfo,
IConventionEntityTypeBuilder targetEntityTypeBuilder,
InversePropertyAttribute attribute)
{
var entityType = entityTypeBuilder.Metadata;
var targetEntityType = targetEntityTypeBuilder.Metadata;
var targetClrType = targetEntityType.ClrType;
var inverseNavigationPropertyInfo = targetEntityType.GetRuntimeProperties().Values
.FirstOrDefault(p => string.Equals(p.GetSimpleMemberName(), attribute.Property))
?? targetEntityType.GetRuntimeProperties().Values
.FirstOrDefault(p => string.Equals(p.GetSimpleMemberName(), attribute.Property, StringComparison.OrdinalIgnoreCase));
if (inverseNavigationPropertyInfo == null ||
!Dependencies.MemberClassifier.GetNavigationCandidates(targetEntityType)[inverseNavigationPropertyInfo]
.Type.IsAssignableFrom(entityType.ClrType))
{
throw new InvalidOperationException(
CoreStrings.InvalidNavigationWithInverseProperty(
navigationMemberInfo.Name, entityType.DisplayName(), attribute.Property, targetClrType.ShortDisplayName()));
}
if (Equals(inverseNavigationPropertyInfo, navigationMemberInfo))
{
throw new InvalidOperationException(
CoreStrings.SelfReferencingNavigationWithInverseProperty(
entityType.DisplayName(),
navigationMemberInfo.Name));
}
// Check for InversePropertyAttribute on the inverse navigation 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,
targetEntityType.DisplayName()));
}
}
var referencingNavigationsWithAttribute =
AddInverseNavigation(entityType, navigationMemberInfo, targetEntityType, inverseNavigationPropertyInfo);
if (TryRemoveIfAmbiguous(
entityType,
navigationMemberInfo,
targetEntityType,
targetEntityType.BaseType,
inverseNavigationPropertyInfo,
referencingNavigationsWithAttribute,
out var conventionForeignKeyBuilder))
{
return(conventionForeignKeyBuilder);
}
var ownership = entityType.FindOwnership();
if (ownership != null &&
ownership.PrincipalEntityType == targetEntityType &&
ownership.PrincipalToDependent?.GetIdentifyingMemberInfo() != inverseNavigationPropertyInfo)
{
Dependencies.Logger.NonOwnershipInverseNavigationWarning(
entityType, navigationMemberInfo,
targetEntityType, inverseNavigationPropertyInfo,
ownership.PrincipalToDependent?.GetIdentifyingMemberInfo() !);
return(null);
}
var targetOwnership = targetEntityType.FindOwnership();
if (targetOwnership != null &&
targetOwnership.PrincipalEntityType == entityType &&
targetOwnership.PrincipalToDependent?.GetIdentifyingMemberInfo() != navigationMemberInfo)
{
Dependencies.Logger.NonOwnershipInverseNavigationWarning(
entityType, navigationMemberInfo,
targetEntityType, inverseNavigationPropertyInfo,
targetOwnership.PrincipalToDependent?.GetIdentifyingMemberInfo() !);
return(null);
}
if (targetEntityType.IsOwned() &&
(targetOwnership == null ||
targetOwnership.PrincipalEntityType == entityType))
{
if (navigationMemberInfo.DeclaringType != entityType.ClrType &&
(entityType.Model.FindEntityType(navigationMemberInfo.DeclaringType !) != null ||
(navigationMemberInfo.DeclaringType != entityType.ClrType.BaseType &&
entityType.Model.FindEntityType(entityType.ClrType.BaseType !) != null)))
{
return(null);
}
return(entityTypeBuilder.HasOwnership(
targetEntityType,
navigationMemberInfo,
inverseNavigationPropertyInfo,
fromDataAnnotation: true));
}
if (entityType.IsOwned() &&
(ownership == null ||
ownership.PrincipalEntityType == targetEntityType))
{
if (navigationMemberInfo.DeclaringType != entityType.ClrType &&
(entityType.Model.FindEntityType(navigationMemberInfo.DeclaringType !) != null ||
(navigationMemberInfo.DeclaringType != entityType.ClrType.BaseType &&
entityType.Model.FindEntityType(entityType.ClrType.BaseType !) != null)))
{
return(null);
}
return(targetEntityTypeBuilder.HasOwnership(
entityTypeBuilder.Metadata,
inverseNavigationPropertyInfo,
navigationMemberInfo,
fromDataAnnotation: true));
}
if (ownership != null ||
targetOwnership != null)
{
return(null);
}
var newForeignKeyBuilder = targetEntityTypeBuilder.HasRelationship(
entityType,
inverseNavigationPropertyInfo,
navigationMemberInfo,
fromDataAnnotation: true);
if (newForeignKeyBuilder == null &&
navigationMemberInfo is PropertyInfo navigationPropertyInfo)
{
var navigationTargetType = navigationPropertyInfo.PropertyType.TryGetSequenceType();
var inverseNavigationTargetType = inverseNavigationPropertyInfo.PropertyType.TryGetSequenceType();
if (navigationTargetType != null &&
inverseNavigationTargetType != null &&
navigationTargetType.IsAssignableFrom(targetClrType) &&
inverseNavigationTargetType.IsAssignableFrom(entityType.ClrType))
{
entityTypeBuilder.HasSkipNavigation(
navigationPropertyInfo, targetEntityType,
inverseNavigationPropertyInfo, collections: true, onDependent: false, fromDataAnnotation: true);
}
}
return(newForeignKeyBuilder);
}
private void CreateRelationships(
IEnumerable <RelationshipCandidate> relationshipCandidates,
IConventionEntityTypeBuilder entityTypeBuilder)
{
var unusedEntityTypes = new List <IConventionEntityType>();
foreach (var relationshipCandidate in relationshipCandidates)
{
var entityType = entityTypeBuilder.Metadata;
var targetEntityType = relationshipCandidate.TargetTypeBuilder.Metadata;
var isAmbiguousOnBase = entityType.BaseType != null &&
HasAmbiguousNavigationsTo(entityType.BaseType, targetEntityType.ClrType) ||
(targetEntityType.BaseType != null &&
HasAmbiguousNavigationsTo(targetEntityType.BaseType, entityType.ClrType));
var ambiguousOwnership = relationshipCandidate.NavigationProperties.Count == 1 &&
relationshipCandidate.InverseProperties.Count == 1 &&
entityType.GetConfigurationSource() != ConfigurationSource.Explicit &&
targetEntityType.GetConfigurationSource() != ConfigurationSource.Explicit &&
targetEntityType.Model.IsOwned(entityType.ClrType) &&
targetEntityType.Model.IsOwned(targetEntityType.ClrType);
if (ambiguousOwnership)
{
var existingNavigation =
entityType.FindNavigation(relationshipCandidate.NavigationProperties.Single().GetSimpleMemberName());
if (existingNavigation != null &&
existingNavigation.ForeignKey.DeclaringEntityType == targetEntityType &&
existingNavigation.ForeignKey.GetPrincipalEndConfigurationSource()
.OverridesStrictly(ConfigurationSource.Convention))
{
ambiguousOwnership = false;
}
else
{
var existingInverse =
targetEntityType.FindNavigation(relationshipCandidate.InverseProperties.Single().GetSimpleMemberName());
if (existingInverse != null &&
existingInverse.ForeignKey.PrincipalEntityType == targetEntityType &&
existingInverse.ForeignKey.GetPrincipalEndConfigurationSource()
.OverridesStrictly(ConfigurationSource.Convention))
{
ambiguousOwnership = false;
}
}
}
if ((relationshipCandidate.NavigationProperties.Count > 1 &&
relationshipCandidate.InverseProperties.Count > 0 &&
(!targetEntityType.Model.IsOwned(targetEntityType.ClrType) ||
entityType.IsInOwnershipPath(targetEntityType))) ||
relationshipCandidate.InverseProperties.Count > 1 ||
isAmbiguousOnBase ||
ambiguousOwnership ||
HasDeclaredAmbiguousNavigationsTo(entityType, targetEntityType.ClrType) ||
HasDeclaredAmbiguousNavigationsTo(targetEntityType, entityType.ClrType))
{
if (!isAmbiguousOnBase)
{
Dependencies.Logger.MultipleNavigationProperties(
relationshipCandidate.NavigationProperties.Count == 0
? new[] { new Tuple <MemberInfo?, Type>(null, targetEntityType.ClrType) }
: relationshipCandidate.NavigationProperties.Select(
n => new Tuple <MemberInfo?, Type>(n, entityType.ClrType)),
relationshipCandidate.InverseProperties.Count == 0
? new[] { new Tuple <MemberInfo?, Type>(null, targetEntityType.ClrType) }
: relationshipCandidate.InverseProperties.Select(
n => new Tuple <MemberInfo?, Type>(n, targetEntityType.ClrType)));
}
foreach (var navigationProperty in relationshipCandidate.NavigationProperties.ToList())
{
RemoveNavigation(
navigationProperty, entityType, relationshipCandidate.NavigationProperties);
}
foreach (var inverseProperty in relationshipCandidate.InverseProperties.ToList())
{
RemoveNavigation(
inverseProperty, targetEntityType, relationshipCandidate.InverseProperties);
}
if (!isAmbiguousOnBase)
{
AddAmbiguous(entityTypeBuilder, relationshipCandidate.NavigationProperties, targetEntityType.ClrType);
AddAmbiguous(targetEntityType.Builder, relationshipCandidate.InverseProperties, entityType.ClrType);
}
unusedEntityTypes.Add(targetEntityType);
continue;
}
foreach (var navigation in relationshipCandidate.NavigationProperties)
{
if (!targetEntityType.IsInModel &&
!targetEntityType.Model.IsOwned(targetEntityType.ClrType))
{
continue;
}
if (InversePropertyAttributeConvention.IsAmbiguous(entityType, navigation, targetEntityType))
{
unusedEntityTypes.Add(targetEntityType);
continue;
}
var targetOwned = !entityType.IsInOwnershipPath(targetEntityType) &&
(targetEntityType.Model.IsOwned(targetEntityType.ClrType) ||
(targetEntityType.HasSharedClrType &&
targetEntityType.Model.FindEntityTypes(targetEntityType.ClrType).Any(e => e.IsOwned())));
var inverse = relationshipCandidate.InverseProperties.SingleOrDefault();
if (inverse == null)
{
if (targetOwned)
{
entityTypeBuilder.HasOwnership(targetEntityType.ClrType, navigation);
}
else
{
entityTypeBuilder.HasRelationship(targetEntityType, navigation);
}
}
else
{
if (InversePropertyAttributeConvention.IsAmbiguous(targetEntityType, inverse, entityType))
{
unusedEntityTypes.Add(targetEntityType);
continue;
}
if (targetOwned &&
entityType.Model.IsOwned(entityType.ClrType))
{
var existingInverse = targetEntityType.FindNavigation(inverse.GetSimpleMemberName());
if (inverse.PropertyType.TryGetSequenceType() != null ||
targetEntityType.GetConfigurationSource() == ConfigurationSource.Explicit ||
(existingInverse != null &&
existingInverse.ForeignKey.DeclaringEntityType == entityType &&
existingInverse.ForeignKey.GetPrincipalEndConfigurationSource()
.OverridesStrictly(ConfigurationSource.Convention)))
{
// Target type is the principal, so the ownership should be configured from the other side
targetOwned = false;
}
}
if (targetOwned)
{
entityTypeBuilder.HasOwnership(targetEntityType.ClrType, navigation, inverse);
}
else if (entityTypeBuilder.HasRelationship(targetEntityType, navigation, inverse) == null)
{
var navigationTargetType = navigation.PropertyType.TryGetSequenceType();
var inverseTargetType = inverse.PropertyType.TryGetSequenceType();
if (navigationTargetType == targetEntityType.ClrType &&
inverseTargetType == entityType.ClrType)
{
entityTypeBuilder.HasSkipNavigation(
navigation, targetEntityType, inverse, collections: true, onDependent: false);
}
}
}
}
if (relationshipCandidate.NavigationProperties.Count == 0)
{
if (relationshipCandidate.InverseProperties.Count == 0 ||
targetEntityType.Model.IsOwned(targetEntityType.ClrType))
{
unusedEntityTypes.Add(targetEntityType);
}
else
{
foreach (var inverse in relationshipCandidate.InverseProperties)
{
if (!targetEntityType.IsInModel)
{
continue;
}
if (InversePropertyAttributeConvention.IsAmbiguous(targetEntityType, inverse, entityType))
{
unusedEntityTypes.Add(targetEntityType);
continue;
}
targetEntityType.Builder.HasRelationship(entityTypeBuilder.Metadata, inverse);
}
}
}
}
foreach (var unusedEntityType in unusedEntityTypes)
{
if (IsImplicitlyCreatedUnusedSharedType(unusedEntityType))
{
entityTypeBuilder.ModelBuilder.HasNoEntityType(unusedEntityType);
}
}
}