上週我遇到了一個與Django中的listView和Forms有關的任務,我想知道在ListView中實現搜索表單的最佳方式(+ Pythonic)是什麼,在我讀1和2之後,我得到了一個主要想法,所以我實施了第一個解決方案,我希望收到您的反饋。這裏的目標是通過代碼字段執行查詢並保留查詢集以便將其與分頁同步。在Django ListView中實現查詢表單的最佳方式是什麼?
forms.py
class InscriptionQueryForm(forms.Form):
query_inscription = forms.CharField(label=_('Code'), required=False)
models.py
class Inscription(models.Model):
code = models.CharField(max_length=10, unique=True)
start_on = models.DateField()
finish_on = models.DateField()
active = models.BooleanField(default=False)
views.py
class InscriptionListView(ListView, FormMixin):
model = Inscription
paginate_by = 4
context_object_name = 'inscriptions'
form_class = InscriptionQueryForm
form = None
object_list = None
search = False
def get_queryset(self):
form = self.form_class(self.request.POST)
if form.is_valid() and self.request.method == 'POST':
self.request.session['query_inscription'] = \
form.cleaned_data['query_inscription']
return self.model.objects.filter(
code__icontains=form.cleaned_data['query_inscription']).\
order_by('-active')
if self.request.method == 'GET' and \
'query_inscription' in self.request.session:
return self.model.objects.filter(
code__icontains=self.request.session.get(
'query_inscription', '')).order_by('-active')
return self.model.objects.all().order_by('-active')
def get(self, request, *args, **kwargs):
# From ProcessFormMixin
self.form = self.get_form(self.form_class)
# From BaseListView
if self.request.GET.get('page', False) or self.search:
self.object_list = self.get_queryset()
else:
self.search = False
self.object_list = self.model.objects.all().order_by('-active')
if 'query_inscription' in self.request.session:
del self.request.session['query_inscription']
context = self.get_context_data(
object_list=self.object_list, form=self.form)
return self.render_to_response(context)
def post(self, request, *args, **kwargs):
self.search = True
return self.get(request, *args, **kwargs)
你怎麼看摹呃,我相信還有很多其他更好的方法。
爲什麼使用會話?即使在頁面之間進行頁面調整,GET參數中是否仍然存在query_inscription? – schillingt 2015-03-31 20:07:13
我通過郵寄發送表單,所以我只有第一次使用query_inscription參數。我將query_inscription保存在會話變量中以保持正確的分頁。我使用get的唯一參數是'page'。 – jorlugaqui 2015-04-01 13:18:09