Golang Entity.GetID Examples

Example #1

File: main.go Project: stellar/bridge-server

// Insert inserts the entity to a DB
func (d *Driver) Insert(object entities.Entity) (id int64, err error) {
	value, tableName, err := getTypeData(object)

	if err != nil {
		return 0, err
	}

	fieldsCount := value.NumField()
	var fieldNames []string
	var fieldValues []string

	for i := 0; i < fieldsCount; i++ {
		field := value.Field(i)
		tag := field.Tag.Get("db")
		if tag == "" {
			continue
		}
		fieldNames = append(fieldNames, tag)
		fieldValues = append(fieldValues, ":"+tag)
	}

	query := "INSERT INTO " + tableName + " (" + strings.Join(fieldNames, ", ") + ") VALUES (" + strings.Join(fieldValues, ", ") + ");"

	var result sql.Result
	switch object := object.(type) {
	case *entities.AuthorizedTransaction:
		result, err = d.database.NamedExec(query, object)
	case *entities.AllowedFi:
		result, err = d.database.NamedExec(query, object)
	case *entities.AllowedUser:
		result, err = d.database.NamedExec(query, object)
	case *entities.SentTransaction:
		result, err = d.database.NamedExec(query, object)
	case *entities.ReceivedPayment:
		result, err = d.database.NamedExec(query, object)
	}

	if err != nil {
		return
	}

	id, err = result.LastInsertId()

	if id == 0 {
		// Not autoincrement
		if object.GetID() == nil {
			return 0, fmt.Errorf("Not autoincrement but ID nil")
		}
		id = *object.GetID()
	}

	if err == nil {
		object.SetID(id)
		object.SetExists()
	}

	return
}

Example #2

File: main.go Project: FihlaTV/bridge-server

// Insert inserts the entity to a DB
func (d *Driver) Insert(object entities.Entity) (id int64, err error) {
	value, tableName, err := getTypeData(object)

	if err != nil {
		return 0, err
	}

	fieldsCount := value.NumField()
	var fieldNames []string
	var fieldValues []string

	for i := 0; i < fieldsCount; i++ {
		field := value.Field(i)
		tag := field.Tag.Get("db")
		if tag == "" {
			continue
		}

		if tag == "id" && object.GetID() == nil {
			// To handle error:
			// null value in column "id" violates not-null constraint
			continue
		}

		fieldNames = append(fieldNames, tag)
		fieldValues = append(fieldValues, ":"+tag)
	}

	query := "INSERT INTO " + tableName + " (" + strings.Join(fieldNames, ", ") + ") VALUES (" + strings.Join(fieldValues, ", ") + ") RETURNING id;"

	// TODO cache prepared statement
	stmt, err := d.database.PrepareNamed(query)
	if err != nil {
		return
	}

	switch object := object.(type) {
	case *entities.AuthorizedTransaction:
		err = stmt.Get(&id, object)
	case *entities.SentTransaction:
		err = stmt.Get(&id, object)
	case *entities.ReceivedPayment:
		err = stmt.Get(&id, object)
	}

	if err != nil {
		return
	}

	if id == 0 {
		// Not autoincrement
		if object.GetID() == nil {
			return 0, fmt.Errorf("Not autoincrement but ID nil")
		}
		id = *object.GetID()
	}

	if err == nil {
		object.SetID(id)
		object.SetExists()
	}

	return
}