teams: editors can't remove the last admin from a team.

pkg/models/team.go

@@ -10,6 +10,7 @@ var (
 	ErrTeamNotFound                         = errors.New("Team not found")
 	ErrTeamNameTaken                        = errors.New("Team name is taken")
 	ErrTeamMemberNotFound                   = errors.New("Team member not found")
+	ErrLastTeamAdmin                        = errors.New("Not allowed to remove last admin")
 	ErrNotAllowedToUpdateTeam               = errors.New("User not allowed to update team")
 	ErrNotAllowedToUpdateTeamInDifferentOrg = errors.New("User not allowed to update team in another org")
 )

pkg/models/team_member.go

@@ -42,9 +42,10 @@ type UpdateTeamMemberCommand struct {
 }
 
 type RemoveTeamMemberCommand struct {
-	OrgId  int64 `json:"-"`
-	UserId int64
-	TeamId int64
+	OrgId            int64 `json:"-"`
+	UserId           int64
+	TeamId           int64
+	ProtectLastAdmin bool `json:"-"`
 }
 
 // ----------------------