如何使用可以为空的CheckboxSelectMultiple创建搜索
嗨，我正在尝试创建一个搜索，它会有一些CheckboxSelectMultiple。问题是，当该字段之一为空时，它在/ technology /处返回错误MultiValueDictKeyError，但是当我选择每个字段之一时，它均能正常工作，但是当我尝试进行分页时，在/ technology /处也收到此错误MultiValueDictKeyError
form.py
class TechnologySearchForm(forms.Form):
CATEGORY_CHOICES = (
(0,'Acabada'),
(1,'Em Desenvolvimento'),
)
KIND_CHOICES = (
(0, 'Produto'),
(1, 'Processo'),
(2, 'Software')
)
PATENT_CHOICES = (
(0,'Depositada'),
(1,'Licenciada'),
(2,'Não Possui')
)
PATENT_TYPE_CHOICES = (
(0, 'Patente De Invenção'),
(1, 'Modelo de Utilidade')
)
title = forms.CharField(label="Título", max_length=50, required=False, widget=forms.TextInput(attrs={'class':'form-control'}))
description = forms.CharField(label="Descrição", max_length=50, required=False, widget=forms.TextInput(attrs={'class':'form-control'}))
application_area = forms.CharField(label="Área de Aplicação", max_length=50, required=False, widget=forms.TextInput(attrs={'class':'form-control'}))
category = forms.ChoiceField(label="Categoria", choices=CATEGORY_CHOICES, widget=forms.CheckboxSelectMultiple(),required=False)
kind = forms.ChoiceField(label="Tipo de Tecnologia", choices=KIND_CHOICES, widget=forms.CheckboxSelectMultiple(),required=False)
patent = forms.ChoiceField(label="Patente", choices=PATENT_CHOICES, widget=forms.CheckboxSelectMultiple(),required=False)
patent_type = forms.ChoiceField(label="Tipo de Patente", choices=PATENT_TYPE_CHOICES, widget=forms.CheckboxSelectMultiple(),required=False)
我的列表视图
class TechnologyListView(LoginRequiredMixin, ListView):
model = Technology
template_name = "technology/technology.html"
paginate_by = 6
def get_context_data(self, **kwargs):
data = super(TechnologyListView, self).get_context_data(**kwargs)
data['imagearea'] = self.request.GET
data["filter_form"] = TechnologySearchForm(self.request.GET)
return data
def get_queryset(self, *args, **kwargs):
qs = super(TechnologyListView, self).get_queryset(*args, **kwargs)
query = self.request.GET
queryset = Technology.objects.filter(user=self.request.user)
if query:
qs = queryset.filter(
Q(title__icontains=query['title']) &
Q(description__icontains=query['description']) &
Q(category__in=query['category']) |
Q(kind=query['kind']) |
Q(patent__exact=query['patent']) |
Q(patent_type__exact=query['patent_type'])
)
return qs
我的html
{% extends "techbase.html" %}
{% load static %}
{% block content %}
{% include "includes/carousel.html" %}
<br>
<div class="container-fluid" >
<div class="row">
<div class="col-sm-2">
<div style="margin-top:15% ">
<h1 class="title text-center">Filtro:</h1>
<form method="GET" action="{% url 'technology:tech_index' %}" novalidate>
{{ filter_form }}
<br>
<input type='submit' value='Procurar' class='btn'>
<a class="btn btn-primary" href="{% url 'technology:tech_index' %}">Limpar Filtro</a>
</form>
</div>
</div>
<div class="col-sm-10">
<ul class="nav nav-pills nav-pills-shop">
<li class="mr15 active">
<a href="{% url 'technology:create_tech' %}"><i class="fa fa-bolt">
</i>Adicionar Tecnologia</a>
</li>
</ul>
<h1 class="title text-center">Minhas Tecnologias</h1>
<div class="tab-content tab-shop mt15">
<div id="home" class="tab-pane row fade in active">
{% for item in object_list %}
<div class="col-lg-4 col-md-4 col-sm-6 mb30">
<div class="view no-margin" style="background-color: #cfcfcf">
<!-- Blog Thumb -->
<div class="product-container">
{% if item.area_img %}
<img class="img-responsive full-width" style="width:100%; height:200px" src="{{item.area_img.image.url}}" alt="...">
{% else %}
<img class="img-responsive full-width" style="width:100%; height:200px" src="{% static 'images/notavailable.png' %}" alt="...">
{% endif %}
</div>
<div class="mask">
<div class="image-hover-content">
<!-- Zoom + Blog Link -->
<a href="{% url 'technology:detail_tech' item.pk %}" >
<div class="image-icon-holder"><span data-toggle="tooltip" data-placement="top" title="Visualizar" class="ion-eye image-icons"style="color:#fff"></span></div>
</a>
<a href="{% url 'technology:update_tech' item.pk %}">
<div class="image-icon-holder"><span data-toggle="tooltip" data-placement="top" title="Editar" class="ion-edit image-icons" style="color:#fff"></span></div>
</a>
<a data-toggle="modal" data-target="#delete-{{item.pk}}">
<div class="image-icon-holder"><span data-toggle="tooltip" data-placement="top" title="Deletar" class="ion-ios7-trash image-icons" style="color:red"></span></div>
</a>
<div class="modal fade" id="delete-{{item.pk}}" tabindex="-1" role="dialog" aria-labelledby="myModalLabel">
<div class="modal-dialog" role="document">
<div class="modal-content text-center">
<form action="{% url 'technology:delete_tech' pk=item.pk %}" method="post">
{% csrf_token %}
<div class="modal-header">
<button type="button" class="close" data-dismiss="modal" aria-label="Close"><span aria-hidden="true">×</span></button>
<h2>Deletar</h2>
</div>
<div class="modal-body">
<p>Você deseja realmente deletar "{{ item }}"?</p>
</div>
<div class="modal-footer">
<button type="button" class="btn btn-success" data-dismiss="modal">Voltar</button>
<input class="btn btn-danger" type="submit" value="Confirmar" />
</div>
</form>
</div>
</div>
</div>
</div><!-- /image hover content -->
</div><!-- /mask-->
</div>
<div class="shop-product content-box-shadow">
<a href="{% url 'technology:update_tech' item.pk %}"><h2>{{item.title}}</h2></a>
<p>{{item.description|truncatechars:40}}</p>
</div>
</div>
{% if forloop.counter|divisibleby:4 %}
</li>
<li>
{% endif %}
{% endfor %}
</div>
</div>
{% include "includes/paginator.html" %}
</div>
</div>
{% endblock content %}
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