fix

routers/api/backend/coin.go

@@ -146,7 +146,7 @@ func AddCoin(c *gin.Context) {
 		Decimals:       coin.Decimals,
 		Address:        coin.Address,
 		Treaty:         coin.Treaty,
-		PlatformId:     "1",
+		PlatformId:     "[1]",
 	}
 
 	if err := coinService.Add(); err != nil {

routers/api/backend/wallet_coin_relation.go

@@ -108,15 +108,21 @@ func AddWalletCoinRelationCoinRelation(c *gin.Context) {
 		}
 
 		coin_exist, _ := coinService.Get()
-		platform_id_arr := strings.Split(coin_exist.PlatformId, ",")
 		is_exist := false
+
+		temp_exist_platform_ids := strings.Replace(coin_exist.PlatformId, "[", "", -1)
+		temp_exist_platform_ids = strings.Replace(temp_exist_platform_ids, "]", "", -1)
+		temp_exist_platform_ids = strings.Replace(temp_exist_platform_ids, " ", "", -1)
+
+		platform_id_arr := strings.Split(temp_exist_platform_ids, ",")
+
 		for _, exist_platform_id := range platform_id_arr {
 			if util.ToInt(exist_platform_id) == coin_relation.PlatformId {
 				is_exist = true
 			}
 		}
 		if is_exist == false {
-			coinService.PlatformId = coin_exist.PlatformId + "," + strconv.Itoa(coin_relation.PlatformId)
+			coinService.PlatformId = strings.Replace(coin_exist.PlatformId, "]", ",", -1) + strconv.Itoa(coin_relation.PlatformId) + "]"
 			coinService.UpdateCoinRelation()
 		}
 	}
@@ -163,7 +169,11 @@ func DeleteWalletCoinRelationCoinRelation(c *gin.Context) {
 	}
 
 	coin_exist, _ := coinService.Get()
-	platform_id_arr := strings.Split(coin_exist.PlatformId, ",")
+	temp_exist_platform_ids := strings.Replace(coin_exist.PlatformId, "[", "", -1)
+	temp_exist_platform_ids = strings.Replace(temp_exist_platform_ids, "]", "", -1)
+	temp_exist_platform_ids = strings.Replace(temp_exist_platform_ids, " ", "", -1)
+
+	platform_id_arr := strings.Split(temp_exist_platform_ids, ",")
 
 	var new_platform_id string
 	for _, exist_platform_id := range platform_id_arr {
@@ -173,7 +183,7 @@ func DeleteWalletCoinRelationCoinRelation(c *gin.Context) {
 		new_platform_id = strings.Join([]string{exist_platform_id, new_platform_id}, ",")
 		new_platform_id = strings.TrimRight(new_platform_id, ",")
 	}
-	coinService.PlatformId = new_platform_id
+	coinService.PlatformId = "[" + new_platform_id + "]"
 	coinService.UpdateCoinRelation()
 
 	handler.SendResponse(c, nil, nil)