Fix remove team member issue (#3566) (#3570)

Signed-off-by: Wendell Sun <iwendellsun@gmail.com>

models/org.go

@@ -436,8 +436,7 @@ func AddOrgUser(orgID, uid int64) error {
 	return sess.Commit()
 }
 
-// RemoveOrgUser removes user from given organization.
+func removeOrgUser(sess *xorm.Session, orgID, userID int64) error {
-func RemoveOrgUser(orgID, userID int64) error {
 	ou := new(OrgUser)
 
 	has, err := x.
@@ -473,12 +472,6 @@ func RemoveOrgUser(orgID, userID int64) error {
 		}
 	}
 
-	sess := x.NewSession()
-	defer sess.Close()
-	if err := sess.Begin(); err != nil {
-		return err
-	}
-
 	if _, err := sess.ID(ou.ID).Delete(ou); err != nil {
 		return err
 	} else if _, err = sess.Exec("UPDATE `user` SET num_members=num_members-1 WHERE id=?", orgID); err != nil {
@@ -520,6 +513,19 @@ func RemoveOrgUser(orgID, userID int64) error {
 		}
 	}
 
+	return nil
+}
+
+// RemoveOrgUser removes user from given organization.
+func RemoveOrgUser(orgID, userID int64) error {
+	sess := x.NewSession()
+	defer sess.Close()
+	if err := sess.Begin(); err != nil {
+		return err
+	}
+	if err := removeOrgUser(sess, orgID, userID); err != nil {
+		return err
+	}
 	return sess.Commit()
 }
 

models/org_team.go

@@ -10,6 +10,8 @@ import (
 	"strings"
 
 	"code.gitea.io/gitea/modules/log"
+
+	"github.com/go-xorm/xorm"
 )
 
 const ownerTeamName = "Owners"
@@ -521,7 +523,7 @@ func AddTeamMember(team *Team, userID int64) error {
 	return sess.Commit()
 }
 
-func removeTeamMember(e Engine, team *Team, userID int64) error {
+func removeTeamMember(e *xorm.Session, team *Team, userID int64) error {
 	isMember, err := isTeamMember(e, team.OrgID, team.ID, userID)
 	if err != nil || !isMember {
 		return err
@@ -558,6 +560,16 @@ func removeTeamMember(e Engine, team *Team, userID int64) error {
 		}
 	}
 
+	// Check if the user is a member of any team in the organization.
+	if count, err := e.Count(&TeamUser{
+		UID:   userID,
+		OrgID: team.OrgID,
+	}); err != nil {
+		return err
+	} else if count == 0 {
+		return removeOrgUser(e, team.OrgID, userID)
+	}
+
 	return nil
 }