[英]Implement Scan and Value functions in golang
我正在嘗試在 SQL 數據庫中存儲一些 golang 對象,並實現了掃描儀和值接口,如下所示:
func (attr *myStruct) Scan(src interface{}) error {
switch v := src.(type) {
case string:
return json.Unmarshal([]byte(v), attr)
case []byte:
return json.Unmarshal(v, attr)
}
return fmt.Errorf("cannot convert %T to My struct", src)
}
//nolint:hugeParam
func (attr mystruct) Value() (driver.Value, error) {
return json.Marshal(attr)
}
有沒有一種方法可以通過指針將參數傳遞給Value()
() 函數,因為在嘗試將數據轉換回我的結構時,我收到一個HugeParam
錯誤,即傳遞給Value()
函數的 attr 太大.
任何建議表示贊賞,謝謝!
更新:我試圖通過標記 nolint 來解決這個問題,以忽略巨大的參數,但錯誤仍然存在。 這是錯誤消息:
golangci-lint run --deadline 300s
feedback-handler-test_1_fdc66eade9d0 | level=warning msg="[runner] The linter 'interfacer' is deprecated (since v1.38.0) due to: The repository of the linter has been archived by the owner. "
feedback-handler-test_1_fdc66eade9d0 | level=warning msg="[runner/nolint] Found unknown linters in //nolint directives: gocritic:hugeparam"
feedback-handler-test_1_fdc66eade9d0 | internal/app/domain/entity/feedbacks.go:61:7: hugeParam: attr is heavy (320 bytes); consider passing it by pointer (gocritic)
使固定:
/nolint // hugeParam: //insert explanation
func (attr mystruct) Value() (driver.Value, error) {
return json.Marshal(attr)
}
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