[英]When to use get, get_queryset, get_context_data in Django?
[英]Django: get_queryset after get_context_data
我正在过滤我的项目 model 对象,由经过身份验证的用户使用我的 ListView 中的 get_context_data
class myprojects(LoginRequiredMixin, ListView):
model = Project
template_name = 'my_project_list.html'
ordering = ['project_title']
def get_context_data(self, *args, **kwargs):
context = super(myprojects, self).get_context_data(**kwargs)
context['my_projects'] = Project.objects.filter(engineer=self.request.user)
return context
在模板中
{% for my_project in my_projects %}
{{ my_project }}
{% endfor %}
我的模板中有一个表单来搜索项目,我在同一个 ListView 上使用了 get_queryset。 我收到了搜索,但它没有在模板中过滤
class myprojects(LoginRequiredMixin, ListView):
model = Project
template_name = 'my_project_list.html'
ordering = ['project_title']
def get_context_data(self, *args, **kwargs):
context = super(myprojects, self).get_context_data(**kwargs)
context['my_projects'] = Project.objects.filter(engineer=self.request.user)
return context
def get_queryset(self, *args, **kwargs):
context = super().get_queryset(*args, **kwargs)
search = self.request.GET.get('buscar', None)
print(search)
if search:
context = context.filter(
Q(project_title__icontains=search) |
Q(category__title__icontains=search)
).distinct()
return context
注意:当我使用{% for project in object_list %}
而不是{% for project in my_projects %}
时,它搜索没有问题,但我不再有用户过滤器
只需在 get_queryset 方法中过滤
def get_queryset(self, *args, **kwargs):
queryset = super().get_queryset(*args, **kwargs)
search = self.request.GET.get('buscar', None)
queryset = queryset.filter(engineer=self.request.user)
if search:
queryset = queryset.filter(
Q(project_title__icontains=search) |
Q(category__title__icontains=search)
).distinct()
return queryset
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