如何在单一方法中验证多个烧瓶形式？

Question

我正在以相同的方法验证三个表单，我能够验证三个表单中的两个，但第三个表单没有验证。

views.py
......
@main.route('/tournament/<tid>', methods=["GET", "POST"])
def tournament(tid):
    ......
    form1 = AddTeamForm()
    form2 = CreateTeamForm()
    form3 = CreateMatchForm()

    # Dynamic allocation of team choices
    team_choices = [(team.id, team.name) for team in tournament.teams]
    form3.team1.choices = team_choices
    form3.team2.choices = team_choices

    if form1.validate_on_submit():
        .....
        return redirect(url_for('main.tournament', tid=tid))

    if form2.validate_on_submit():
        .....
        return redirect(url_for('main.tournament', tid=tid))

    if form3.validate_on_submit():
        print('Passed the validation')
        team1 = Team.query.get(int(form3.team1.data))
        team2 = Team.query.get(int(form3.team2.data))
        match = Match(
            tournment_id=tid,
            name=team1.name+' Vs '+team2.name,
            match_date=form3.match_date.data)
        match.teams.append(team1)
        match.teams.append(team2)
        db.session.add(match)
        db.session.commit()
        return redirect(url_for('main.tournament', tid=tid))

    return render_template(
        'main/tournment.html',
        form1=form1,
        form2=form2,
        form3=form3)

forms.py
....
class CreateMatchForm(FlaskForm):
    team1 = SelectField('Team1',  coerce=int, validators=[DataRequired()])
    team2 = SelectField('Team2',  coerce=int, validators=[DataRequired()])
    match_date = DateField('Match Date', validators=[DataRequired()], 
        render_kw={'type': 'date'},
        default=date.today()+timedelta(days=1))
    submit = SubmitField('Create New Match')


tournment.html
....
<form class="form-inline" method="POST" action="{{ url_for('main.tournament', tid=tid) }}">
    {{ form3.hidden_tag() }}
    {{ form3.team1(class="form-control m-2")}}
    {{ form3.team1(class="form-control m-2")}}
    {{ form3.match_date(class="form-control m-2")}}
    {{ form3.submit(class="form-control m-2 btn btn-success btn-sm")}}
</form>

这是 UI 的外观：

发布请求后：

它甚至没有打印打印/错误消息。

第三种形式没有验证任何值，所以没有创建匹配。我尝试在烧瓶外壳中使用相同的脚本创建匹配项，它完美地工作并且正在创建匹配项，但我无法使用此表单创建。我该如何度过呢？

Answer 1

我想出了一个临时解决方案。我没有使用烧瓶表单，而是使用了原始的 html 表单，并且效果很好。

在views.py中用请求对象替换了form3：

if request.method == "POST":
        print('Passed the validation')
        team1 = Team.query.get(int(request.form['team1']))
        team2 = Team.query.get(int(request.form['team2']))
        match = Match(
            tournament_id=tid,
            name=team1.name+' Vs '+team2.name,
            match_date=request.form['match_date'])
        match.teams.append(team1)
        match.teams.append(team2)
        db.session.add(match)
        db.session.commit()
        return redirect(url_for('main.tournament', tid=tid))

用原始 html 表单替换烧瓶表单：

<form class="form-inline" method="POST" action="{{ url_for('main.tournment', tid=tid) }}">
    <select class="form-control m-2" id="team1" name="team1" required="">
        {% for team in tournament.teams %}
            <option value={{team.id}}>{{team.name}}</option>
        {% endfor %}
    </select>
    <select class="form-control m-2" id="team2" name="team2" required="">
        {% for team in tournament.teams %}
            <option value={{team.id}}>{{team.name}}</option>
        {% endfor %}
    </select>
    <input class="form-control m-2" type="date" name="match_date" required="">
    <input class="form-control m-2 btn btn-success btn-sm" type="submit" value="Create Match">
</form>

现在它按预期工作：

不过，我还是一无所知。为什么使用烧瓶表单不起作用？