Django formset - 在 table 中呈现多余的行

Question

我使用 Django 表单集成功渲染了一个 table，但是最后渲染了一个多余的空行！我做错了什么？

<table id="formset" class="form table table-condensed zeon zeon-row-hover">
                    {{ formset.management_form }}
                        
                    {% for form in formset.forms %}
                      {% if forloop.first %}
                      <thead><tr>
                        {% for field in form.visible_fields %}
                        <th>{{ field.label|capfirst }}
                        {% endfor %}
                      </tr></thead>
                      {% endif %}
                      <tr class="{% cycle row1,row2 %}">
                      {% for field in form.visible_fields %}
                        <td class = 'zeon_input_table_cell'>
                        {# Include the hidden fields in the form #}
                        {% if forloop.first %}
                              {% for hidden in form.hidden_fields %}
                              {{ hidden }}
                              {% endfor %}
                        {% endif %}
                          {{ field.errors.as_ul }}
                            {{field}}
                        </td>
                      {% endfor %}
                      </tr>
                    {% endfor %}    
                    </table>

查看：

MyModelFormSet =  modelformset_factory(MyModel, exclude=('agreement_vendors',))
formset = MyModelFormSet(queryset = MyModel.objects.filter(...))
return render_to_response('vendors/edit_agreement.html',
                             {'formset':formset},
                              context_instance=RequestContext(request))

更新：根据下面的答案，问题解决了 extra = 0

Answer 1

根据 Django docs:

As you can see it only displayed one empty form. The number of empty forms that is displayed is controlled by the extra parameter. By default, formset_factory() defines one extra form; the following example will display two blank forms:

考虑到这一点，Django 文档建议执行类似的操作来设置额外表单的数量：

ArticleFormSet = formset_factory(ArticleForm, extra=2)

Django formset - 在 table 中呈现多余的行

Django formset - surplus line is rendered in the table

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