Error code standardization

pkg/common/constant/constant.go

@@ -300,10 +300,8 @@ const (
 	ReliableNotificationMsg   = 3
 )
 const (
-	BecomeFriendByImport    = 1 //管理员导入
-	BecomeFriendByMyApply   = 2 //自己主动申请添加
-	BecomeFriendByPeerApply = 3 //对方主动申请添加
-	BecomeFriendByApply     = 4 //申请添加
+	BecomeFriendByImport = 1 //管理员导入
+	BecomeFriendByApply  = 2 //申请添加
 )
 
 const (

pkg/common/constant/errors.go

@@ -18,6 +18,7 @@ var (
 
 	ErrRelationshipAlready = &ErrInfo{RelationshipAlreadyError, "RelationshipAlreadyError", ""}
 	ErrNotRelationshipYet  = &ErrInfo{NotRelationshipYetError, "NotRelationshipYetError", ""}
+	ErrCanNotAddYourself   = &ErrInfo{CanNotAddYourselfError, "CanNotAddYourselfError", ""}
 
 	ErrOnlyOneOwner        = &ErrInfo{OnlyOneOwnerError, "OnlyOneOwnerError", ""}
 	ErrInGroupAlready      = &ErrInfo{InGroupAlreadyError, "InGroupAlreadyError", ""}
@@ -90,6 +91,7 @@ const (
 const (
 	RelationshipAlreadyError = 92001 //已经是好友关系（或者黑名单）
 	NotRelationshipYetError  = 92002 //不是好友关系（或者黑名单）
+	CanNotAddYourselfError   = 92003 //不能添加自己为好友
 )
 
 // 群组错误码