[feat]: 添加好友群组可通过id查询 (#326)

Author: eatmoreapple

relations.go

@@ -85,6 +85,11 @@ func (f Friends) SearchByRemarkName(limit int, remarkName string) (results Frien
 	return f.Search(limit, func(friend *Friend) bool { return friend.User.RemarkName == remarkName })
 }
 
+// SearchByID 根据ID查找好友
+func (f Friends) SearchByID(id string) Friends {
+	return f.Search(1, func(friend *Friend) bool { return friend.User.ID() == id })
+}
+
 // Search 根据自定义条件查找好友
 func (f Friends) Search(limit int, searchFuncList ...func(friend *Friend) bool) (results Friends) {
 	return f.AsMembers().Search(limit, func(user *User) bool {
@@ -304,6 +309,11 @@ func (g Groups) SearchByNickName(limit int, nickName string) (results Groups) {
 	return g.Search(limit, func(group *Group) bool { return group.NickName == nickName })
 }
 
+// SearchByID 根据ID查找群组
+func (g Groups) SearchByID(id string) Groups {
+	return g.Search(1, func(group *Group) bool { return group.ID() == id })
+}
+
 // Search 根据自定义条件查找群组
 func (g Groups) Search(limit int, searchFuncList ...func(group *Group) bool) (results Groups) {
 	return g.AsMembers().Search(limit, func(user *User) bool {