Question

以下代码显示了我的模板，视图和表单代码。当重新呈现html表单时，我想显示由views.py中调用的.is_valid（）函数生成的错误。问题是我什至无法访问events_form和events_formset中的错误，更不用说显示它们了。事件_form.errors，事件_formset.errors或

{% for field in incident_form %}
  {% for error in field.errors %}
    <p> {{ error }} </p>
  {% endfor %}
{% endfor %}

允许我查看由.is_valid方法生成的错误。奇怪的是，香脆的应用程序返回到无效表单，突出显示了第一个无效字段，并准备接受用户的输入。另外，当日期字段填写不正确时，表格有时会显示错误，例如“无效的日期字段”。但是，没有数据提交的必填字段都不会显示“必填”错误。非常感谢您的帮助。

new_incident.html的片段：

<form method="post" class="form-horizontal">

    {% crispy incident_form %}
    <input type="button" id="delete_field_data" class="btn btn-outline-danger" value="Delete Field Incident Data">

    <div id="form_set_class">
        {{ incident_formset.management_form }}
        {% for form in incident_formset %}
            {{form.non_field_errors}}
            {{form.errors}}
            {% crispy form %}
        {% endfor %}
    </div>
    [...]

forms.py的片段：

class IncidentForm(forms.ModelForm):
    def __init__(self, *args, **kwargs):
        super(IncidentForm, self).__init__(*args, **kwargs)

        self.helper = FormHelper()
        self.helper.form_tag = False
        self.helper.layout = Layout( [<edited_out_for_this_post] )
        self.helper.form_id = "incident_form"

class PartDeficiencyForm(forms.ModelForm):
    class Meta:
        model = PartDeficiency
        fields = "__all__"

DeficiencyFormSet = modelformset_factory(model=PartDeficiency, form=PartDeficiencyForm, exclude=None, extra=0, max_num=20, can_delete=True)

views.py的片段：

def new_incident(request):

    if request.method == 'POST':
        incident_form = IncidentForm(request.POST)
        deficiency_formset = DeficiencyFormSet(request.POST)

        if incident_form.is_valid() and deficiency_formset.is_valid():
            incident_form.save()
            deficiency_formset.save()
            return redirect('quality_dept:home')

        else:
            dict = {'incident_form': incident_form, 'incident_formset': deficiency_formset}
            return render(request, 'incidents/new_incident.html', dict)

    else:
        incident_form = IncidentForm()
        formset_data = { 'form-TOTAL_FORMS': '0',
                     'form-INITIAL_FORMS': '0',
                     'form-MAX_NUM_FORMS': '20'}
        def_formset = DeficiencyFormSet(formset_data)
        dict = {'incident_form': incident_form, 'incident_formset': def_formset}
        return render(request, 'incidents/new_incident.html', dict)

为什么我无法在Django模板中访问表单的错误属性？

0 个答案: