添加平台时唯一验证

pkg/errno/errno.go

@@ -97,6 +97,7 @@ var (
 	ErrAddChain      = &Errno{Code: 20101, Message: "The chain add error."}
 	ErrUpdateChain   = &Errno{Code: 20102, Message: "The chain update error."}
 	ErrDeleteChain   = &Errno{Code: 20102, Message: "The chain delete error."}
+	ErrExistChain    = &Errno{Code: 20103, Message: "The chain already exists."}
 
 	// supported currency errors
 	ErrSupportedCurrencyNotFound = &Errno{Code: 20101, Message: "The supported currency was not found."}

routers/api/v1/chain.go

@@ -147,6 +147,12 @@ func AddChain(c *gin.Context) {
 		Lock:       chain.Lock,
 	}
 
+	count, err := chainService.Count()
+	if err != nil || count > 0 {
+		handler.SendResponse(c, errno.ErrExistChain, nil)
+		return
+	}
+
 	if err := chainService.Add(); err != nil {
 		handler.SendResponse(c, errno.ErrAddChain, nil)
 		return

service/chain_service/chain.go

@@ -99,5 +99,9 @@ func (c *Chain) getMaps() (map[string]interface{}) {
 		maps["id"] = c.ID
 	}
 
+	if c.Platform != "" {
+		maps["platform"] = c.Platform
+	}
+
 	return maps
 }

validate_service/chain.go

@@ -8,7 +8,7 @@ type Chain struct {
 	Token      string  `json:"token" validate:"omitempty"`
 	Fee        float32 `json:"fee" validate:"omitempty"`
 	BrowerUrl  string  `json:"brower_url" validate:"omitempty,url"`
-	Lock       int     `json:"lock" validate:"omitempty"`
+	Lock       int     `json:"lock" validate:"min=1,max=2"`
 }
 
 type EditChain struct {