private static void CloneForeignKeys(IReadOnlyEntityType sourceEntityType, IMutableEntityType targetEntityType)
{
foreach (var foreignKey in sourceEntityType.GetDeclaredForeignKeys())
{
var targetPrincipalEntityType = targetEntityType.Model.FindEntityType(foreignKey.PrincipalEntityType.Name);
var clonedForeignKey = targetEntityType.AddForeignKey(
foreignKey.Properties.Select(p => targetEntityType.FindProperty(p.Name)).ToList(),
targetPrincipalEntityType.FindKey(
foreignKey.PrincipalKey.Properties.Select(p => targetPrincipalEntityType.FindProperty(p.Name)).ToList()),
targetPrincipalEntityType);
clonedForeignKey.IsUnique = foreignKey.IsUnique;
clonedForeignKey.IsRequired = foreignKey.IsRequired;
foreignKey.GetAnnotations().ForEach(annotation => clonedForeignKey[annotation.Name] = annotation.Value);
}
}
public static IReadOnlyForeignKey?FindDeclaredOwnership([NotNull] this IReadOnlyEntityType entityType) => entityType.GetDeclaredForeignKeys().FirstOrDefault(fk => fk.IsOwnership);
