ReferenceSchema *Schema
	References      []*Field
	OnDelete        string
	OnUpdate        string
}

func (constraint *Constraint) GetName() string { return constraint.Name }

func (constraint *Constraint) Build() (sql string, vars []interface{}) {
	sql = "CONSTRAINT ? FOREIGN KEY ? REFERENCES ??"
	if constraint.OnDelete != "" {
		sql += " ON DELETE " + constraint.OnDelete
	}

	if constraint.OnUpdate != "" {

        // Create an item for deletion
        ProtwordsItem item = new ProtwordsItem(1, "toDelete");
        item.setNewInput(""); // empty means delete

        ProtwordsFile.ProtwordsUpdater updater = protwordsFile.new ProtwordsUpdater(item);

        // Write the same item (should delete)
        ProtwordsItem result = updater.write(item);

        assertNull(result);

        updater.close();

		return
	}

	users := []*User{
		GetUser("delete-returning-1", Config{}),
		GetUser("delete-returning-2", Config{}),
		GetUser("delete-returning-3", Config{}),
	}
	DB.Create(&users)

	var results []User
	DB.Where("name IN ?", []string{users[0].Name, users[1].Name}).Clauses(clause.Returning{}).Delete(&results)
	if len(results) != 2 {
		t.Errorf("failed to return delete data, got %v", results)
	}

	var count int64

	// Delete
	if err := DB.Model(&user2).Association("Pets").Delete(&Pet{}); err != nil {
		t.Fatalf("Error happened when delete pet, got %v", err)
	}
	AssertAssociationCount(t, user2, "Pets", 1, "after delete non-existing data")

	if err := DB.Model(&user2).Association("Pets").Delete(&pet2); err != nil {
		t.Fatalf("Error happened when delete Pets, got %v", err)
	}

	// Delete
	if err := DB.Model(&user2).Association("Account").Delete(&Account{}); err != nil {
		t.Fatalf("Error happened when delete account, got %v", err)
	}
	AssertAssociationCount(t, user2, "Account", 1, "after delete non-existing data")

	if err := DB.Model(&user2).Association("Account").Delete(&account2); err != nil {
		t.Fatalf("Error happened when delete Account, got %v", err)
	}

	--remote-bucket http://minio:minio123@127.0.0.1:9004/bucket \
	--replicate "existing-objects,delete,delete-marker,replica-metadata-sync"
sleep 1

echo "adding replication rule for b -> a : ${remote_arn}"
./mc replicate add siteb/bucket/ \
	--remote-bucket http://minio:minio123@127.0.0.1:9001/bucket \
	--replicate "existing-objects,delete,delete-marker,replica-metadata-sync"
sleep 1

	// Delete
	if err := DB.Model(&user2).Association("Company").Delete(&Company{}); err != nil {
		t.Fatalf("Error happened when delete Company, got %v", err)
	}
	AssertAssociationCount(t, user2, "Company", 1, "after delete non-existing data")

	if err := DB.Model(&user2).Association("Company").Delete(&company2); err != nil {
		t.Fatalf("Error happened when delete Company, got %v", err)
	}

	// Delete
	if err := DB.Model(&user2).Association("Languages").Delete(&Language{}); err != nil {
		t.Fatalf("Error happened when delete language, got %v", err)
	}
	AssertAssociationCount(t, user2, "Languages", 1, "after delete non-existing data")

	if err := DB.Model(&user2).Association("Languages").Delete(&language2); err != nil {
		t.Fatalf("Error happened when delete Languages, got %v", err)
	}

To permanently delete an object you need to specify the version you want to delete, only the user with appropriate permissions can permanently delete a version.  As shown below DELETE request called with a specific version id permanently deletes an object from a bucket. Delete marker is not added for DELETE requests with version id.

### Replication of DeleteMarker and versioned Delete