我正在嘗試使用 MGO 在類型的映射中從我的 MongoDB 接收數據[]map[string]interface{}我的 JSON 看起來像這樣 -{ "_id":"string", "brandId":123, "category":{ "television":[ { "cat":"T1", "subCategory":[ { "subCat":"T1A TV", "warrantyPeriod":6 } ], "warrantyPeriod":12 }, { "cat":"T2", "subCategory":[ { "subCat":"T2A", "warrantyPeriod":18 }, { "subCat":"T2B", "warrantyPeriod":9 } ], "warrantyPeriod":15 }, { "cat":"T3", "subCategory":[ { "subCat":"T3A", "warrantyPeriod":3 }, { "subCat":"T3B", "warrantyPeriod":5 }, { "subCat":"T3C", "warrantyPeriod":7 }, { "subCat":"T3D", "warrantyPeriod":11 } ], "warrantyPeriod":4 } ], "television_warrantyPeriod":24 }, "title":"BrandName"}理想情況下，我會傳入類別名稱，即“電視”cat和subCat值，這些值可能是可選的。例如像這樣的東西 -{"categorySlug": "television","brandId": "123","model": "T2"}在這種情況下，如果沒有指定 T2A 或 T2B，我希望找到“15”，這是 T2 的保修期值。我的查詢功能如下所示 -var data map[string]stringerr := json.NewDecoder(r.Body).Decode(&data)log.Println(err)var buffer bytes.Bufferbuffer.WriteString("category.")buffer.WriteString(data["categorySlug"])brandId, _ := strconv.Atoi(data["brandId"])concernedbrandandcategory := database.GetMappedFields("Brands", bson.M{"brandId": brandId, buffer.String(): bson.M{"$exists": true}}, bson.M{buffer.String(): 1})categorymap := concernedbrandandcategory[0]log.Println(categorymap["category"]["television"], reflect.TypeOf(categorymap))我只是無法理解這個嵌套結構，它有時返回一個地圖，有時返回一個界面！任何幫助將不勝感激！
1 回答
慕村9548890
TA貢獻1884條經驗 獲得超4個贊
你可以做這樣的事情
majorCat := body["categorySlug"]
category := body["category"]
subCategory := body["subCategory"]
brandId, err := strconv.Atoi(body["brandId"])
if err != nil {
log.Println(err)
}
result := database.GetMappedFields("Brands", bson.M{"brandId": brandId}, bson.M{"category": 1, "_id": 0})
internalObj := result[0]["category"].(map[string]interface{})
finalValue := internalObj["television_warrantyPeriod"]
if category != "" {
for _, v := range internalObj[majorCat].([]interface{}) {
subObj := v.(map[string]interface{})
if subObj["cat"] == category {
finalValue = subObj["warrantyPeriod"]
if subCategory != "" {
minorObj := subObj["subCategory"].([]interface{})
for _, iter := range minorObj {
kevVal := iter.(map[string]interface{})
if kevVal["subCat"] == subCategory {
finalValue = kevVal["warrantyPeriod"]
}
}
}
}
}
}
希望這會動態完成，或者您可以創建一個結構，以便可以直接將其解碼為歡呼聲
- 1 回答
- 0 關注
- 316 瀏覽
添加回答
舉報
0/150
提交
取消