add ErrRecordExistError

Reviewed-on: #3

code.go

@@ -21,6 +21,7 @@ const (
 	CodeEmailAccountPhoneNone    = 13    // 邮箱、账号、电话不能都为空
 	CodeParentIDShouldNotEqualID = 14    // 父节点的点不能等于自己的id
 	CodeWrongOldPassword         = 15    // 旧密码错误
+	CodeRecordExistError         = 40001 // 记录已存在
 )
 
 var (
@@ -40,6 +41,7 @@ var (
 	MsgEmailAccountPhoneNone    = "邮箱、账号、电话不能都为空"
 	MsgParentIDShouldNotEqualID = "父节点的点不能等于自己的id"
 	MsgWrongOldPassword         = "旧密码错误"
+	MsgRecordExistError         = "记录已存在"
 )
 
 var (
@@ -59,5 +61,6 @@ var (
 	ErrEmailAccountPhoneNone    = status.Error(CodeEmailAccountPhoneNone, MsgEmailAccountPhoneNone)
 	ErrParentIDShouldNotEqualID = status.Error(CodeParentIDShouldNotEqualID, MsgParentIDShouldNotEqualID)
 	ErrWrongOldPassword         = status.Error(CodeWrongOldPassword, MsgWrongOldPassword)
+	ErrRecordExistError         = status.Error(CodeRecordExistError, MsgRecordExistError)
 )