Question

我有一个InterField，可以验证数字是否在值0和99之间。由于某种原因，它永远不会验证。我觉得它与FieldList以及我在模板中迭代它的方式有关，但似乎无法使其正常工作。

表格：

class dpiaImpactAnalysisForm(Form):

    severity_score = IntegerField("Severity Score"), 
        validators=[NumberRange(min=0, max=99, message="Please provide a valid number")]))
    identifiability_score = IntegerField("Identifiability Score"),
        validators=[NumberRange(min=0, max=99, message="Please provide a valid number")]))


class dpiaThreatAnalysisForm(Form):

    impact = FieldList(FormField(dpiaImpactAnalysisForm), min_entries=1)

在视图中，我根据需要动态附加条目：

@app.route('/dpia/analysis/<project_id>', methods=["GET", "POST"])
def analysis(project_id):

    form = dpiaThreatAnalysisForm()

    prim = Assets.query.filter_by(selected=True, primary=True).all()
    primary_assets = list(map(vars, prim))

    ev = Events.query.all()
    events = list(map(vars, ev))

    # add fields to the form...
    for z in range(len(prim) * len(ev)):
        form.impact.append_entry()

    supp = Assets.query.filter_by(selected=True, primary=False).all()
    supporting_assets = list(map(vars, supp))

    ths = Threats.query.all()
    threats = list(map(vars, ths))

    # add fields to the form
    for z in range(len(ths) * len(supp)):
        form.likelihood.append_entry()

    if form.is_submitted():
        print "submitted"
    if form.validate():
        print "valid"
    print form.errors

    if form.validate_on_submit():
        # This is never printed:
        app.logger.info("success!!")
        pprint(form.likelihood)

    return redirect(url_for(next_step, project_id=project_id))
return render_template('analysis.html', form=form, threats=threats, supporting_assets=supporting_assets, primary_assets=primary_assets, events=events)

在模板中，我遍历列表primary_assets中的列表events，并在每次迭代中添加字段：

{% for val in events %}
   {% if not counter or loop.index0 == 0 %}
      {% set counter = [] %}  <!-- loop hack !-->
   {% endif %}
   <strong>Event: {{ val.name }}</strong><br />
   Jeopardizes: {{ val.jeopardizes }}<br />

   {% for pa in primary_assets %}
       <strong>{{ pa['name'] }}</strong><br />
       {{ form.impact[counter|length].identifiability_score(placeholder='') }} <br />
       {{ form.impact[counter|length].severity_score(placeholder='') }} 
       {{ form.impact[counter|length].hidden_tag() }} 
       {% if counter.append('1') %}{% endif %}
   {% endfor %}
{% endfor %}

hidden_tag()也不起作用。通常我会使用类似

的东西迭代表单

 {% for impact in form.impact %}
     {{ impact.form.hidden_tag() }}
     # do cbg
  {% endfor %}

这是有效的，这就是为什么我相信它的手动循环会破坏它...

编辑2月3日，17：26

经过一些测试，我发现使用

severity_score = IntegerField("Severity Score", validators=[Optional(), NumberRange( min=0, max=9999999999, message="Please provide a valid number")])

有效（如果我设置min=50我在插入低于50的数字时出错，但是，CSRF仍未通过。

{{ form.impact[counter|length].hidden_tag() }}或 {{ form.impact[counter|length].form.hidden_tag() }}两个都不能工作:(

我得到：{'impact': [{'csrf_token': ['CSRF token missing']}, {'csrf_token': ['CSRF token missing']}]}

编辑18:22

这似乎是：Form validation fails due missing CSRF是解决方案。调查...

Answer 1

这：Form validation fails due missing CSRF是解决方案。

在之前的版本中，这不是必需的，并且在安装新的扩展点后，更新了flask-wtf ...

WTforms IntegerField in fieldlist从不使用手动迭代进行验证

1 个答案: