// FIXME: need some kind of mechanism to record failure. HINT: system notice
func deleteUser(e *xorm.Session, u *User) error {
// Note: A user owns any repository or belongs to any organization
// cannot perform delete operation.
// Check ownership of repository.
count, err := getRepositoryCount(e, u)
if err != nil {
return fmt.Errorf("GetRepositoryCount: %v", err)
} else if count > 0 {
return ErrUserOwnRepos{UID: u.Id}
}
// Check membership of organization.
count, err = u.getOrganizationCount(e)
if err != nil {
return fmt.Errorf("GetOrganizationCount: %v", err)
} else if count > 0 {
return ErrUserHasOrgs{UID: u.Id}
}
// ***** START: Watch *****
watches := make([]*Watch, 0, 10)
if err = e.Find(&watches, &Watch{UserID: u.Id}); err != nil {
return fmt.Errorf("get all watches: %v", err)
}
for i := range watches {
if _, err = e.Exec("UPDATE `repository` SET num_watches=num_watches-1 WHERE id=?", watches[i].RepoID); err != nil {
return fmt.Errorf("decrease repository watch number[%d]: %v", watches[i].RepoID, err)
}
}
// ***** END: Watch *****
// ***** START: Star *****
stars := make([]*Star, 0, 10)
if err = e.Find(&stars, &Star{UID: u.Id}); err != nil {
return fmt.Errorf("get all stars: %v", err)
}
for i := range stars {
if _, err = e.Exec("UPDATE `repository` SET num_stars=num_stars-1 WHERE id=?", stars[i].RepoID); err != nil {
return fmt.Errorf("decrease repository star number[%d]: %v", stars[i].RepoID, err)
}
}
// ***** END: Star *****
// ***** START: Follow *****
followers := make([]*Follow, 0, 10)
if err = e.Find(&followers, &Follow{UserID: u.Id}); err != nil {
return fmt.Errorf("get all followers: %v", err)
}
for i := range followers {
if _, err = e.Exec("UPDATE `user` SET num_followers=num_followers-1 WHERE id=?", followers[i].UserID); err != nil {
return fmt.Errorf("decrease user follower number[%d]: %v", followers[i].UserID, err)
}
}
// ***** END: Follow *****
if err = deleteBeans(e,
&AccessToken{UID: u.Id},
&Collaboration{UserID: u.Id},
&Access{UserID: u.Id},
&Watch{UserID: u.Id},
&Star{UID: u.Id},
&Follow{FollowID: u.Id},
&Action{UserID: u.Id},
&IssueUser{UID: u.Id},
&EmailAddress{UID: u.Id},
); err != nil {
return fmt.Errorf("deleteBeans: %v", err)
}
// ***** START: PublicKey *****
keys := make([]*PublicKey, 0, 10)
if err = e.Find(&keys, &PublicKey{OwnerID: u.Id}); err != nil {
return fmt.Errorf("get all public keys: %v", err)
}
for _, key := range keys {
if err = deletePublicKey(e, key.ID); err != nil {
return fmt.Errorf("deletePublicKey: %v", err)
}
}
// ***** END: PublicKey *****
// Clear assignee.
if _, err = e.Exec("UPDATE `issue` SET assignee_id=0 WHERE assignee_id=?", u.Id); err != nil {
return fmt.Errorf("clear assignee: %v", err)
}
if _, err = e.Id(u.Id).Delete(new(User)); err != nil {
return fmt.Errorf("Delete: %v", err)
}
// FIXME: system notice
// Note: There are something just cannot be roll back,
// so just keep error logs of those operations.
RewriteAllPublicKeys()
os.RemoveAll(UserPath(u.Name))
os.Remove(u.CustomAvatarPath())
return nil
}