public virtual InternalRelationshipBuilder Apply(InternalRelationshipBuilder relationshipBuilder)
{
var foreignKey = (IForeignKey)relationshipBuilder.Metadata;
if (!foreignKey.Properties.All(fk => fk.IsShadowProperty))
{
return relationshipBuilder;
}
var foreignKeyProperties = FindCandidateForeignKeyProperties(
relationshipBuilder.Metadata, onDependent: true);
if (foreignKey.IsUnique
&& !foreignKey.IsSelfPrimaryKeyReferencing())
{
var candidatePropertiesOnPrincipal = FindCandidateForeignKeyProperties(
relationshipBuilder.Metadata, onDependent: false);
bool shouldInvert;
if (ShouldFlip(relationshipBuilder.Metadata, foreignKeyProperties, candidatePropertiesOnPrincipal)
&& relationshipBuilder.CanSet(relationshipBuilder.Metadata.DeclaringEntityType,
relationshipBuilder.Metadata.PrincipalEntityType,
null,
null,
/*dependentProperties:*/ candidatePropertiesOnPrincipal,
null,
null,
null,
null,
true,
ConfigurationSource.Convention,
out shouldInvert))
{
Debug.Assert(shouldInvert);
var invertedBuilder = relationshipBuilder.Invert(ConfigurationSource.Convention);
Debug.Assert(invertedBuilder != null);
if (candidatePropertiesOnPrincipal == null)
{
return invertedBuilder;
}
// TODO: Remove, as this is redundant
invertedBuilder = invertedBuilder.ForeignKey(
candidatePropertiesOnPrincipal, ConfigurationSource.Convention);
Debug.Assert(invertedBuilder != null);
return invertedBuilder;
}
if (foreignKeyProperties == null)
{
foreignKeyProperties = GetCompatiblePrimaryKeyProperties(
relationshipBuilder.Metadata.DeclaringEntityType,
relationshipBuilder.Metadata.PrincipalEntityType,
relationshipBuilder.Metadata.PrincipalKey.Properties);
}
}
if (foreignKeyProperties != null
&& relationshipBuilder.Metadata.DeclaringEntityType.FindForeignKey(foreignKeyProperties) == null)
{
var newRelationshipBuilder = relationshipBuilder.ForeignKey(foreignKeyProperties, ConfigurationSource.Convention);
if (newRelationshipBuilder != null)
{
return newRelationshipBuilder;
}
}
return relationshipBuilder;
}
public virtual InternalRelationshipBuilder Apply(InternalRelationshipBuilder relationshipBuilder)
{
var foreignKey = (IForeignKey)relationshipBuilder.Metadata;
if (!foreignKey.Properties.All(fk => fk.IsShadowProperty))
{
return(relationshipBuilder);
}
var foreignKeyProperties = FindCandidateForeignKeyProperties(
relationshipBuilder.Metadata, onDependent: true);
if (foreignKey.IsUnique &&
!foreignKey.IsSelfPrimaryKeyReferencing())
{
var candidatePropertiesOnPrincipal = FindCandidateForeignKeyProperties(
relationshipBuilder.Metadata, onDependent: false);
bool shouldInvert;
if (ShouldFlip(relationshipBuilder.Metadata, foreignKeyProperties, candidatePropertiesOnPrincipal) &&
relationshipBuilder.CanSet(relationshipBuilder.Metadata.DeclaringEntityType,
relationshipBuilder.Metadata.PrincipalEntityType,
null,
null,
/*dependentProperties:*/ candidatePropertiesOnPrincipal,
null,
null,
null,
null,
true,
ConfigurationSource.Convention,
out shouldInvert))
{
Debug.Assert(shouldInvert);
var invertedBuilder = relationshipBuilder.Invert(ConfigurationSource.Convention);
Debug.Assert(invertedBuilder != null);
if (candidatePropertiesOnPrincipal == null)
{
return(invertedBuilder);
}
// TODO: Remove, as this is redundant
invertedBuilder = invertedBuilder.ForeignKey(
candidatePropertiesOnPrincipal, ConfigurationSource.Convention);
Debug.Assert(invertedBuilder != null);
return(invertedBuilder);
}
if (foreignKeyProperties == null)
{
foreignKeyProperties = GetCompatiblePrimaryKeyProperties(
relationshipBuilder.Metadata.DeclaringEntityType,
relationshipBuilder.Metadata.PrincipalEntityType,
relationshipBuilder.Metadata.PrincipalKey.Properties);
}
}
if (foreignKeyProperties != null &&
relationshipBuilder.Metadata.DeclaringEntityType.FindForeignKey(foreignKeyProperties) == null)
{
var newRelationshipBuilder = relationshipBuilder.ForeignKey(foreignKeyProperties, ConfigurationSource.Convention);
if (newRelationshipBuilder != null)
{
return(newRelationshipBuilder);
}
}
return(relationshipBuilder);
}