/// <summary>
/// This API supports the Entity Framework Core infrastructure and is not intended to be used
/// directly from your code. This API may change or be removed in future releases.
/// </summary>
public virtual InternalRelationshipBuilder Apply(InternalRelationshipBuilder relationshipBuilder)
{
var foreignKey = relationshipBuilder.Metadata;
var foreignKeyProperties = FindCandidateForeignKeyProperties(foreignKey, onDependent: true);
if (foreignKeyProperties == null)
{
// Try to invert if one to one or can be converted to one to one
if (foreignKey.IsUnique
|| (foreignKey.PrincipalToDependent == null))
{
var candidatePropertiesOnPrincipal = FindCandidateForeignKeyProperties(foreignKey, onDependent: false);
if (candidatePropertiesOnPrincipal != null
&& !foreignKey.PrincipalEntityType.FindForeignKeysInHierarchy(candidatePropertiesOnPrincipal).Any())
{
var invertedRelationshipBuilder = relationshipBuilder
.RelatedEntityTypes(foreignKey.DeclaringEntityType, foreignKey.PrincipalEntityType, ConfigurationSource.Convention);
return invertedRelationshipBuilder ?? relationshipBuilder;
}
}
// Try to use PK properties if principal end is not ambiguous
if (foreignKey.IsUnique
&& !foreignKey.IsSelfReferencing()
&& !ConfigurationSource.Convention.Overrides(foreignKey.GetPrincipalEndConfigurationSource()))
{
foreignKeyProperties = GetCompatiblePrimaryKeyProperties(
foreignKey.DeclaringEntityType,
foreignKey.PrincipalEntityType,
foreignKey.PrincipalKey.Properties);
}
}
if ((foreignKeyProperties == null)
|| foreignKey.DeclaringEntityType.FindForeignKeysInHierarchy(foreignKeyProperties).Any())
{
return relationshipBuilder;
}
if (ConfigurationSource.Convention.Overrides(foreignKey.GetPrincipalEndConfigurationSource())
&& !foreignKey.IsSelfReferencing()
&& (foreignKey.PrincipalToDependent?.IsCollection() != true))
{
var candidatePropertiesOnPrincipal = FindCandidateForeignKeyProperties(foreignKey, onDependent: false);
if (candidatePropertiesOnPrincipal != null
&& !foreignKey.PrincipalEntityType.FindForeignKeysInHierarchy(candidatePropertiesOnPrincipal).Any())
{
// Ambiguous principal end
if (relationshipBuilder.Metadata.GetPrincipalEndConfigurationSource() == ConfigurationSource.Convention)
{
relationshipBuilder.Metadata.SetPrincipalEndConfigurationSource(null);
}
return relationshipBuilder;
}
}
var newRelationshipBuilder = relationshipBuilder.HasForeignKey(foreignKeyProperties, ConfigurationSource.Convention);
if (newRelationshipBuilder != null)
{
return newRelationshipBuilder;
}
return relationshipBuilder;
}
private InternalRelationshipBuilder DiscoverProperties(InternalRelationshipBuilder relationshipBuilder)
{
var foreignKey = relationshipBuilder.Metadata;
if (!ConfigurationSource.Convention.Overrides(foreignKey.GetPropertiesConfigurationSource()))
{
using (var batch = foreignKey.DeclaringEntityType.Model.ConventionDispatcher.StartBatch())
{
using (var foreignKeyReference = foreignKey.DeclaringEntityType.Model.ConventionDispatcher.Tracker.Track(foreignKey))
{
foreach (var fkProperty in foreignKey.Properties)
{
if (ConfigurationSource.Convention.Overrides(fkProperty.GetTypeConfigurationSource()) &&
fkProperty.IsShadowProperty() &&
fkProperty.ClrType.IsNullableType() == foreignKey.IsRequired &&
fkProperty.GetContainingForeignKeys().All(otherFk => otherFk.IsRequired == foreignKey.IsRequired))
{
var newType = fkProperty.ClrType.MakeNullable(!foreignKey.IsRequired);
if (fkProperty.ClrType != newType)
{
fkProperty.DeclaringEntityType.Builder.Property(
fkProperty.Name,
fkProperty.ClrType.MakeNullable(!foreignKey.IsRequired),
fkProperty.GetConfigurationSource(),
ConfigurationSource.Convention);
}
}
}
batch.Run();
return(foreignKeyReference.Object?.Builder);
}
}
}
var invertable = true;
if (foreignKey.DeclaringEntityType.DefiningEntityType == foreignKey.PrincipalEntityType ||
foreignKey.IsOwnership ||
foreignKey.DeclaringEntityType.IsKeyless ||
(!foreignKey.IsUnique && !ConfigurationSource.Convention.Overrides(foreignKey.GetIsUniqueConfigurationSource())) ||
foreignKey.PrincipalToDependent?.IsCollection() == true ||
foreignKey.DeclaringEntityType.FindOwnership() != null)
{
relationshipBuilder = relationshipBuilder.RelatedEntityTypes(
foreignKey.PrincipalEntityType, foreignKey.DeclaringEntityType, ConfigurationSource.Convention);
invertable = false;
}
else if (ConfigurationSource.Convention.Overrides(foreignKey.GetPrincipalEndConfigurationSource()) &&
(foreignKey.PrincipalEntityType.DefiningEntityType == foreignKey.DeclaringEntityType ||
(foreignKey.PrincipalEntityType.FindOwnership() != null &&
foreignKey.PrincipalToDependent != null &&
foreignKey.DependentToPrincipal == null)))
{
var invertedRelationshipBuilder = relationshipBuilder.RelatedEntityTypes(
foreignKey.DeclaringEntityType, foreignKey.PrincipalEntityType, ConfigurationSource.Convention);
if (invertedRelationshipBuilder != null)
{
return(invertedRelationshipBuilder);
}
}
var foreignKeyProperties = FindCandidateForeignKeyProperties(relationshipBuilder.Metadata, onDependent: true);
if (foreignKeyProperties == null)
{
if (invertable &&
ConfigurationSource.Convention.Overrides(foreignKey.GetPrincipalEndConfigurationSource()))
{
var candidatePropertiesOnPrincipal = FindCandidateForeignKeyProperties(foreignKey, onDependent: false);
if (candidatePropertiesOnPrincipal != null)
{
var invertedRelationshipBuilder = relationshipBuilder
.RelatedEntityTypes(foreignKey.DeclaringEntityType, foreignKey.PrincipalEntityType, ConfigurationSource.Convention);
var invertedFk = invertedRelationshipBuilder?.Metadata;
if (invertedFk?.IsSelfReferencing() == true)
{
invertedRelationshipBuilder = invertedRelationshipBuilder.Navigations(
invertedFk.PrincipalToDependent?.Name, invertedFk.DependentToPrincipal?.Name, ConfigurationSource.Convention);
}
return(invertedRelationshipBuilder ?? (foreignKey.Builder == null ? null : relationshipBuilder));
}
}
if (foreignKey.IsUnique &&
foreignKey.DeclaringEntityType.BaseType == null &&
!foreignKey.IsSelfReferencing())
{
// Try to use PK properties if principal end is not ambiguous
if (!foreignKey.IsOwnership &&
(!ConfigurationSource.Convention.Overrides(foreignKey.GetPrincipalEndConfigurationSource()) ||
foreignKey.DeclaringEntityType.DefiningEntityType == foreignKey.PrincipalEntityType))
{
foreignKeyProperties = GetCompatiblePrimaryKeyProperties(
foreignKey.DeclaringEntityType,
foreignKey.PrincipalEntityType,
foreignKey.PrincipalKey.Properties);
}
else if (invertable)
{
foreignKeyProperties = FindCandidateForeignKeyProperties(foreignKey, onDependent: true, matchPk: true);
var candidatePropertiesOnPrincipal = FindCandidateForeignKeyProperties(foreignKey, onDependent: false, matchPk: true);
if (candidatePropertiesOnPrincipal != null)
{
if (foreignKeyProperties == null)
{
using (var batch = foreignKey.DeclaringEntityType.Model.ConventionDispatcher.StartBatch())
{
var invertedRelationshipBuilder = relationshipBuilder
.RelatedEntityTypes(foreignKey.DeclaringEntityType, foreignKey.PrincipalEntityType, ConfigurationSource.Convention);
return(batch.Run(invertedRelationshipBuilder.HasForeignKey(candidatePropertiesOnPrincipal, foreignKey.PrincipalEntityType, ConfigurationSource.Convention)));
}
}
foreignKeyProperties = null;
relationshipBuilder.Metadata.SetPrincipalEndConfigurationSource(null);
}
}
}
if (foreignKeyProperties == null &&
invertable &&
ConfigurationSource.Convention.Overrides(foreignKey.GetPrincipalEndConfigurationSource()))
{
relationshipBuilder.Metadata.SetPrincipalEndConfigurationSource(null);
}
}
else if (invertable &&
ConfigurationSource.Convention.Overrides(foreignKey.GetPrincipalEndConfigurationSource()))
{
var candidatePropertiesOnPrincipal = FindCandidateForeignKeyProperties(foreignKey, onDependent: false);
if (candidatePropertiesOnPrincipal != null)
{
// Principal end is ambiguous
foreignKeyProperties = null;
relationshipBuilder.Metadata.SetPrincipalEndConfigurationSource(null);
}
}
if (foreignKeyProperties == null)
{
return(ReuniquifyTemporaryProperties(foreignKey, force: false));
}
var conflictingFKCount = foreignKey.DeclaringEntityType.FindForeignKeysInHierarchy(foreignKeyProperties).Count();
if (foreignKey.Properties.SequenceEqual(foreignKeyProperties))
{
return(conflictingFKCount > 1
? ReuniquifyTemporaryProperties(foreignKey, force: true)
: relationshipBuilder);
}
if (conflictingFKCount > 0)
{
return(ReuniquifyTemporaryProperties(foreignKey, force: false));
}
var newRelationshipBuilder = relationshipBuilder.HasForeignKey(foreignKeyProperties, ConfigurationSource.Convention);
if (newRelationshipBuilder != null)
{
return(newRelationshipBuilder);
}
return(relationshipBuilder.Metadata.Builder == null ? null : relationshipBuilder);
}
private InternalRelationshipBuilder DiscoverProperties(InternalRelationshipBuilder relationshipBuilder)
{
var foreignKey = relationshipBuilder.Metadata;
if (!ConfigurationSource.Convention.Overrides(foreignKey.GetForeignKeyPropertiesConfigurationSource()))
{
foreach (var fkProperty in foreignKey.Properties)
{
if (fkProperty.GetTypeConfigurationSource() == null &&
(fkProperty.IsShadowProperty ||
fkProperty.PropertyInfo == null && fkProperty.GetFieldInfoConfigurationSource() == ConfigurationSource.Convention) &&
fkProperty.ClrType.IsNullableType() == foreignKey.IsRequired)
{
fkProperty.DeclaringEntityType.Builder.Property(
fkProperty.Name,
fkProperty.ClrType.MakeNullable(!foreignKey.IsRequired),
fkProperty.GetConfigurationSource(),
ConfigurationSource.Convention);
}
}
return(relationshipBuilder);
}
var invertable = true;
if (foreignKey.DeclaringEntityType.DefiningEntityType == foreignKey.PrincipalEntityType ||
foreignKey.IsOwnership ||
foreignKey.DeclaringEntityType.IsQueryType ||
foreignKey.IsSelfReferencing() ||
foreignKey.PrincipalToDependent?.IsCollection() == true ||
foreignKey.DeclaringEntityType.FindOwnership() != null)
{
relationshipBuilder = relationshipBuilder.RelatedEntityTypes(
foreignKey.PrincipalEntityType, foreignKey.DeclaringEntityType, ConfigurationSource.Convention);
invertable = false;
}
else if (ConfigurationSource.Convention.Overrides(foreignKey.GetPrincipalEndConfigurationSource()) &&
(foreignKey.PrincipalEntityType.DefiningEntityType == foreignKey.DeclaringEntityType ||
(foreignKey.PrincipalEntityType.FindOwnership() != null &&
foreignKey.PrincipalToDependent != null &&
foreignKey.DependentToPrincipal == null)))
{
var invertedRelationshipBuilder = relationshipBuilder.RelatedEntityTypes(
foreignKey.DeclaringEntityType, foreignKey.PrincipalEntityType, ConfigurationSource.Convention);
if (invertedRelationshipBuilder != null)
{
return(invertedRelationshipBuilder);
}
}
var foreignKeyProperties = FindCandidateForeignKeyProperties(relationshipBuilder.Metadata, onDependent: true);
if (foreignKeyProperties == null)
{
// Try to invert if one to one or can be converted to one to one
if (invertable &&
(foreignKey.IsUnique || foreignKey.PrincipalToDependent == null) &&
ConfigurationSource.Convention.Overrides(foreignKey.GetPrincipalEndConfigurationSource()))
{
var candidatePropertiesOnPrincipal = FindCandidateForeignKeyProperties(foreignKey, onDependent: false);
if (candidatePropertiesOnPrincipal != null &&
!foreignKey.PrincipalEntityType.FindForeignKeysInHierarchy(candidatePropertiesOnPrincipal).Any())
{
var invertedRelationshipBuilder = relationshipBuilder
.RelatedEntityTypes(foreignKey.DeclaringEntityType, foreignKey.PrincipalEntityType, ConfigurationSource.Convention);
return(invertedRelationshipBuilder ?? (foreignKey.Builder == null ? null : relationshipBuilder));
}
}
if (foreignKey.IsUnique &&
foreignKey.DeclaringEntityType.BaseType == null &&
!foreignKey.IsSelfReferencing())
{
// Try to use PK properties if principal end is not ambiguous
if (!foreignKey.IsOwnership &&
(!ConfigurationSource.Convention.Overrides(foreignKey.GetPrincipalEndConfigurationSource()) ||
foreignKey.DeclaringEntityType.DefiningEntityType == foreignKey.PrincipalEntityType))
{
foreignKeyProperties = GetCompatiblePrimaryKeyProperties(
foreignKey.DeclaringEntityType,
foreignKey.PrincipalEntityType,
foreignKey.PrincipalKey.Properties);
}
else if (invertable)
{
foreignKeyProperties = FindCandidateForeignKeyProperties(foreignKey, onDependent: true, matchPk: true);
var candidatePropertiesOnPrincipal = FindCandidateForeignKeyProperties(foreignKey, onDependent: false, matchPk: true);
if (candidatePropertiesOnPrincipal != null)
{
if (foreignKeyProperties == null)
{
using (var batch = foreignKey.DeclaringEntityType.Model.ConventionDispatcher.StartBatch())
{
var invertedRelationshipBuilder = relationshipBuilder
.RelatedEntityTypes(foreignKey.DeclaringEntityType, foreignKey.PrincipalEntityType, ConfigurationSource.Convention);
return(batch.Run(invertedRelationshipBuilder.HasForeignKey(candidatePropertiesOnPrincipal, foreignKey.PrincipalEntityType, ConfigurationSource.Convention)));
}
}
foreignKeyProperties = null;
}
}
}
}
return(SetForeignKeyProperties(relationshipBuilder, foreignKeyProperties));
}
/// <summary>
/// This API supports the Entity Framework Core infrastructure and is not intended to be used
/// directly from your code. This API may change or be removed in future releases.
/// </summary>
public virtual InternalRelationshipBuilder Apply(InternalRelationshipBuilder relationshipBuilder)
{
var foreignKey = relationshipBuilder.Metadata;
if (!ConfigurationSource.Convention.Overrides(foreignKey.GetForeignKeyPropertiesConfigurationSource()))
{
var conflictingForeignKeys = foreignKey.DeclaringEntityType.FindForeignKeysInHierarchy(foreignKey.Properties)
.Where(fk => ConfigurationSource.Convention.Overrides(fk.GetForeignKeyPropertiesConfigurationSource()))
.ToList();
foreach (var conflictingForeignKey in conflictingForeignKeys)
{
conflictingForeignKey.Builder.HasForeignKey((IReadOnlyList <Property>)null, ConfigurationSource.Convention);
}
return(relationshipBuilder);
}
var invertable = true;
if (foreignKey.DeclaringEntityType.DefiningEntityType == foreignKey.PrincipalEntityType ||
foreignKey.IsOwnership ||
foreignKey.DeclaringEntityType.IsQueryType ||
foreignKey.IsSelfReferencing() ||
foreignKey.PrincipalToDependent?.IsCollection() == true ||
foreignKey.DeclaringEntityType.FindOwnership() != null)
{
relationshipBuilder = relationshipBuilder.RelatedEntityTypes(
foreignKey.PrincipalEntityType, foreignKey.DeclaringEntityType, ConfigurationSource.Convention);
invertable = false;
}
else if (ConfigurationSource.Convention.Overrides(foreignKey.GetPrincipalEndConfigurationSource()) &&
(foreignKey.PrincipalEntityType.DefiningEntityType == foreignKey.DeclaringEntityType ||
(foreignKey.PrincipalEntityType.FindOwnership() != null &&
foreignKey.PrincipalToDependent != null &&
foreignKey.DependentToPrincipal == null)))
{
var invertedRelationshipBuilder = relationshipBuilder.RelatedEntityTypes(
foreignKey.DeclaringEntityType, foreignKey.PrincipalEntityType, ConfigurationSource.Convention);
if (invertedRelationshipBuilder != null)
{
return(invertedRelationshipBuilder);
}
}
var foreignKeyProperties = FindCandidateForeignKeyProperties(relationshipBuilder.Metadata, onDependent: true);
if (foreignKeyProperties == null)
{
// Try to invert if one to one or can be converted to one to one
if (invertable &&
(foreignKey.IsUnique || foreignKey.PrincipalToDependent == null) &&
ConfigurationSource.Convention.Overrides(foreignKey.GetPrincipalEndConfigurationSource()))
{
var candidatePropertiesOnPrincipal = FindCandidateForeignKeyProperties(foreignKey, onDependent: false);
if (candidatePropertiesOnPrincipal != null &&
!foreignKey.PrincipalEntityType.FindForeignKeysInHierarchy(candidatePropertiesOnPrincipal).Any())
{
var invertedRelationshipBuilder = relationshipBuilder
.RelatedEntityTypes(foreignKey.DeclaringEntityType, foreignKey.PrincipalEntityType, ConfigurationSource.Convention);
return(invertedRelationshipBuilder ?? (foreignKey.Builder == null ? null : relationshipBuilder));
}
}
if (foreignKey.IsUnique &&
foreignKey.DeclaringEntityType.BaseType == null &&
!foreignKey.IsSelfReferencing())
{
// Try to use PK properties if principal end is not ambiguous
if (!ConfigurationSource.Convention.Overrides(foreignKey.GetPrincipalEndConfigurationSource()) ||
foreignKey.DeclaringEntityType.DefiningEntityType == foreignKey.PrincipalEntityType ||
foreignKey.IsOwnership)
{
foreignKeyProperties = GetCompatiblePrimaryKeyProperties(
foreignKey.DeclaringEntityType,
foreignKey.PrincipalEntityType,
foreignKey.PrincipalKey.Properties);
}
else if (invertable)
{
foreignKeyProperties = FindCandidateForeignKeyProperties(foreignKey, onDependent: true, matchPk: true);
var candidatePropertiesOnPrincipal = FindCandidateForeignKeyProperties(foreignKey, onDependent: false, matchPk: true);
if (candidatePropertiesOnPrincipal != null)
{
if (foreignKeyProperties == null)
{
using (var batch = foreignKey.DeclaringEntityType.Model.ConventionDispatcher.StartBatch())
{
var invertedRelationshipBuilder = relationshipBuilder
.RelatedEntityTypes(foreignKey.DeclaringEntityType, foreignKey.PrincipalEntityType, ConfigurationSource.Convention);
return(batch.Run(invertedRelationshipBuilder.HasForeignKey(candidatePropertiesOnPrincipal, foreignKey.PrincipalEntityType, ConfigurationSource.Convention)));
}
}
foreignKeyProperties = null;
}
}
}
}
relationshipBuilder = SetForeignKeyProperties(relationshipBuilder, foreignKeyProperties);
foreignKey = relationshipBuilder?.Metadata;
if (relationshipBuilder == null ||
foreignKey.GetForeignKeyPropertiesConfigurationSource() != null)
{
return(relationshipBuilder);
}
using (var batch = foreignKey.DeclaringEntityType.Model.ConventionDispatcher.StartBatch())
{
var newTemporaryProperties = foreignKey.DeclaringEntityType.Builder.ReUniquifyTemporaryProperties(
foreignKey.Properties,
foreignKey.PrincipalKey.Properties,
foreignKey.IsRequired,
GetPropertyBaseName(foreignKey));
return(newTemporaryProperties != null
? batch.Run(
relationshipBuilder.HasForeignKey(
newTemporaryProperties, foreignKey.DeclaringEntityType, null))
: relationshipBuilder);
}
}
/// <summary>
/// This API supports the Entity Framework Core infrastructure and is not intended to be used
/// directly from your code. This API may change or be removed in future releases.
/// </summary>
public virtual InternalRelationshipBuilder Apply(InternalRelationshipBuilder relationshipBuilder)
{
var foreignKey = relationshipBuilder.Metadata;
var foreignKeyProperties = FindCandidateForeignKeyProperties(foreignKey, onDependent: true);
if (foreignKeyProperties == null)
{
// Try to invert if one to one or can be converted to one to one
if (foreignKey.IsUnique ||
(foreignKey.PrincipalToDependent == null))
{
var candidatePropertiesOnPrincipal = FindCandidateForeignKeyProperties(foreignKey, onDependent: false);
if (candidatePropertiesOnPrincipal != null &&
!foreignKey.PrincipalEntityType.FindForeignKeysInHierarchy(candidatePropertiesOnPrincipal).Any())
{
var invertedRelationshipBuilder = relationshipBuilder
.RelatedEntityTypes(foreignKey.DeclaringEntityType, foreignKey.PrincipalEntityType, ConfigurationSource.Convention);
if (invertedRelationshipBuilder != null)
{
return(invertedRelationshipBuilder);
}
return(foreignKey.Builder == null ? null : relationshipBuilder);
}
}
// Try to use PK properties if principal end is not ambiguous
if (foreignKey.IsUnique &&
!foreignKey.IsSelfReferencing() &&
!ConfigurationSource.Convention.Overrides(foreignKey.GetPrincipalEndConfigurationSource()))
{
foreignKeyProperties = GetCompatiblePrimaryKeyProperties(
foreignKey.DeclaringEntityType,
foreignKey.PrincipalEntityType,
foreignKey.PrincipalKey.Properties);
}
}
if ((foreignKeyProperties == null) ||
foreignKey.DeclaringEntityType.FindForeignKeysInHierarchy(foreignKeyProperties).Any())
{
return(relationshipBuilder);
}
if (ConfigurationSource.Convention.Overrides(foreignKey.GetPrincipalEndConfigurationSource()) &&
!foreignKey.IsSelfReferencing() &&
(foreignKey.PrincipalToDependent?.IsCollection() != true))
{
var candidatePropertiesOnPrincipal = FindCandidateForeignKeyProperties(foreignKey, onDependent: false);
if (candidatePropertiesOnPrincipal != null &&
!foreignKey.PrincipalEntityType.FindForeignKeysInHierarchy(candidatePropertiesOnPrincipal).Any())
{
// Ambiguous principal end
if (relationshipBuilder.Metadata.GetPrincipalEndConfigurationSource() == ConfigurationSource.Convention)
{
relationshipBuilder.Metadata.SetPrincipalEndConfigurationSource(null);
}
return(relationshipBuilder);
}
}
var newRelationshipBuilder = relationshipBuilder.HasForeignKey(foreignKeyProperties, ConfigurationSource.Convention);
if (newRelationshipBuilder != null)
{
return(newRelationshipBuilder);
}
if (relationshipBuilder.Metadata.Builder == null)
{
return(null);
}
return(relationshipBuilder);
}