Function bindArray

named.go:273–301

bindArray binds a named parameter query with fields from an array or slice of structs argument.

(bindType int, query string, arg interface{}, m *reflectx.Mapper)

// bindArray binds a named parameter query with fields from an array or slice of
// structs argument.
func bindArray(bindType int, query string, arg interface{}, m *reflectx.Mapper) (string, []interface{}, error) {
	// do the initial binding with QUESTION;  if bindType is not question,
	// we can rebind it at the end.
	bound, names, err := compileNamedQuery([]byte(query), QUESTION)
	if err != nil {
		return "", []interface{}{}, err
	}
	arrayValue := reflect.ValueOf(arg)
	arrayLen := arrayValue.Len()
	if arrayLen == 0 {
		return "", []interface{}{}, fmt.Errorf("length of array is 0: %#v", arg)
	}
	var arglist = make([]interface{}, 0, len(names)*arrayLen)
	for i := 0; i < arrayLen; i++ {
		elemArglist, err := bindAnyArgs(names, arrayValue.Index(i).Interface(), m)
		if err != nil {
			return "", []interface{}{}, err
		}
		arglist = append(arglist, elemArglist...)
	}
	if arrayLen > 1 {
		bound = fixBound(bound, arrayLen)
	}
	// adjust binding type if we weren't on question
	if bindType != QUESTION {
		bound = Rebind(bindType, bound)
	}
	return bound, arglist, nil
}

// bindMap binds a named parameter query with a map of arguments.
func bindMap(bindType int, query string, args map[string]interface{}) (string, []interface{}, error) {