Function visitModelNode

http/jsonapi/response.go:199–520

(model interface{}, included *map[string]*Node,
	sideload bool,
)

}

func visitModelNode(model interface{}, included *map[string]*Node,
	sideload bool,
) (*Node, error) {
	node := new(Node)

	var er error
	value := reflect.ValueOf(model)
	if value.IsNil() {
		return nil, nil
	}

	modelValue := value.Elem()
	modelType := value.Type().Elem()

	for i := 0; i < modelValue.NumField(); i++ {
		structField := modelValue.Type().Field(i)
		tag := structField.Tag.Get(annotationJSONAPI)
		if tag == "" {
			continue
		}

		fieldValue := modelValue.Field(i)
		fieldType := modelType.Field(i)

		args := strings.Split(tag, annotationSeperator)

		if len(args) < 1 {
			er = ErrBadJSONAPIStructTag
			break
		}

		annotation := args[0]

		if (annotation == annotationClientID && len(args) != 1) ||
			(annotation != annotationClientID && len(args) < 2) {
			er = ErrBadJSONAPIStructTag
			break
		}

		if annotation == annotationPrimary {
			v := fieldValue

			// Deal with PTRS
			var kind reflect.Kind
			if fieldValue.Kind() == reflect.Ptr {
				kind = fieldType.Type.Elem().Kind()
				v = reflect.Indirect(fieldValue)
			} else {
				kind = fieldType.Type.Kind()
			}

			// Handle allowed types
			switch kind {
			case reflect.String:
				node.ID = v.Interface().(string)
			case reflect.Int:
				node.ID = strconv.FormatInt(int64(v.Interface().(int)), 10)
			case reflect.Int8: