private void UpdateChildRelations(IEntityType et, EntityInfo ei)
{
foreach (var relation in et.GetReferencingForeignKeys())
{
if (relation.PrincipalToDependent == null)
{
continue;
}
var relationKey = relation.PrincipalToDependent.Name;
// child entity in child relation is the referring entity
var declaringEntity = GetOrAddEntityInfo(relation.DeclaringEntityType);
var declaringKeys = relation.Properties.Select(p => p.ToEntityFieldInfo(declaringEntity));
// parent entity in child relation is the current entity
var principalEntity = GetOrAddEntityInfo(relation.PrincipalEntityType);
var principalKeys = relation.PrincipalKey.Properties.Select(p => p.ToEntityFieldInfo(principalEntity));
var entityRelation = new EntityRelation
{
FromEntity = principalEntity,
ToEntity = declaringEntity,
FromProperty = relation.PrincipalToDependent.PropertyInfo,
ToProperty = relation.DependentToPrincipal?.PropertyInfo,
FromKeys = principalKeys.ToList(),
ToKeys = declaringKeys.ToList(),
IsChildRelation = true
};
ei.AddRelation(relationKey, entityRelation);
}
}
