def login()

in data_annotation_platform/app/auth/routes.py [0:0]

• 33 lines of code
• 14 McCabe index (conditional complexity)

def login():
    form = LoginForm()
    if form.validate_on_submit():
        # log the user in if exists
        user = User.query.filter_by(username=form.username.data).first()
        if user is None or not user.check_password(form.password.data):
            flash("Invalid username or password", "error")
            return redirect(url_for("auth.login"))
        login_user(user)

        # record last_active time
        current_user.last_active = datetime.datetime.utcnow()
        db.session.commit()

        # remove any assigned unfinished datasets, as these may no longer be
        # needed
        user_tasks = Task.query.filter_by(
            annotator_id=current_user.id, done=False
        ).all()
        for task in user_tasks:
            if task.admin_assigned:
                continue
            anns = Annotation.query.filter_by(task_id=task.id).all()
            if len(anns) > 0:
                flash(
                    "Internal error, unfinished tasks has annotations!",
                    "error",
                )
            db.session.delete(task)
            db.session.commit()

        # redirect if not confirmed yet
        if not user.is_confirmed:
            return redirect(url_for("auth.not_confirmed"))

        # Get the next page from the request (default to index)
        next_page = request.args.get("next")
        if not next_page or url_parse(next_page).netloc != "":
            next_page = url_for("main.index")

        # redirect if not introduced yet
        if not user.is_introduced:
            return redirect(url_for("main.index"))

        return redirect(next_page)
    return render_template("auth/login.html", title="Sign In", form=form)