package form import ( "fmt" "reflect" "strconv" "strings" "time" "unicode" log "github.com/sirupsen/logrus" "github.com/araddon/dateparse" ) // Query parameters for GET /api/v1/albums type AlbumSearch struct { Query string `form:"q"` Slug string `form:"slug"` Name string `form:"name"` Favorites bool `form:"favorites"` Count int `form:"count" binding:"required"` Offset int `form:"offset"` Order string `form:"order"` } func (f *AlbumSearch) ParseQueryString() (result error) { var key, value []rune var escaped, isKeyValue bool q := f.Query f.Query = "" formValues := reflect.ValueOf(f).Elem() q = strings.TrimSpace(q) + "\n" for _, char := range q { if unicode.IsSpace(char) && !escaped { if isKeyValue { fieldName := strings.Title(string(key)) field := formValues.FieldByName(fieldName) stringValue := string(value) if field.CanSet() { switch field.Interface().(type) { case time.Time: if timeValue, err := dateparse.ParseAny(stringValue); err != nil { result = err } else { field.Set(reflect.ValueOf(timeValue)) } case float64: if floatValue, err := strconv.ParseFloat(stringValue, 64); err != nil { result = err } else { field.SetFloat(floatValue) } case int, int64: if intValue, err := strconv.Atoi(stringValue); err != nil { result = err } else { field.SetInt(int64(intValue)) } case uint, uint64: if intValue, err := strconv.Atoi(stringValue); err != nil { result = err } else { field.SetUint(uint64(intValue)) } case string: field.SetString(stringValue) case bool: if stringValue == "1" || stringValue == "true" || stringValue == "yes" { field.SetBool(true) } else if stringValue == "0" || stringValue == "false" || stringValue == "no" { field.SetBool(false) } else { result = fmt.Errorf("not a bool value: %s", fieldName) } default: result = fmt.Errorf("unsupported type: %s", fieldName) } } else { result = fmt.Errorf("unknown filter: %s", fieldName) } } else { f.Query = string(key) } escaped = false isKeyValue = false key = key[:0] value = value[:0] } else if char == ':' { isKeyValue = true } else if char == '"' { escaped = !escaped } else if isKeyValue { value = append(value, unicode.ToLower(char)) } else { key = append(key, unicode.ToLower(char)) } } if result != nil { log.Errorf("error while parsing album form: %s", result) } return result }