我只是想在inlineformset中过滤选择字段。
情景:
每个任务都有自己的报告。每个任务都有一个预订.Booking有几个预订的项目。我想在报告表格中仅根据预订显示相关的bookeditems
。报告表格是使用signals
和在编辑时我正在使用inlineformset
使用instances
填充表单。
这是我的代码:
Models.py
class Task(models.Model):
booking = models.ForeignKey(
Booking, blank=False, null=True, related_name='booking_id',)
......
class Report(models.Model):
task = models.ForeignKey(
Task, blank=True, null=True, related_name='task',)
hoarding = models.OneToOneField(
BookedItem, blank=True, null=True, related_name='+')
status = models.CharField(
max_length=32, choices=ReportStatus.CHOICES, blank=True, null=True, default=ReportStatus.INCOMPLETE)
views.py
def report(request, pk):
task_instance = get_object_or_404(Task, pk=pk)
booking = task_instance.booking_id
#all bookeditems here
bookeditems = BookedItem.objects.filter(Booking_id=bookeditem)
# inline formsetfactory
ReportFormset = inlineformset_factory(Task,Report,form=TaskReportForm,fields=('hoarding','status',), extra=0,can_delete=False,)
data = request.POST or None
formset = ReportFormset(instance=task_instance)
for form in formset:
form.fields['hoarding'].queryset = bookeditems.all()
if request.method == 'POST':
formset = ReportFormset(request.POST,instance=task_instance)
if formset.is_valid():
formset.save
return redirect('taskreport')
else:
formset = ReportFormset(instance=task_instance)
else:
formset = ReportFormset(instance=task_instance)
return render(request, 'report.html', {'formset': formset,
'bookeditems': bookeditems,
'task_instance': task_instance})
forms.py
class TaskReportForm(forms.ModelForm):
def __init__(self, *args, **kwargs):
super(TaskReportForm, self).__init__(*args, **kwargs)
class Meta:
model = PrinterReport
fields = ['hoarding','status',]
exclude = ['printer_task',]
report.html:
<form action="." method="POST">{% csrf_token %}
{{ formset.management_form }}
<section id="account" class="nice-padding active">
<div class="link-formset">
<table class="listing listing-page">
<thead>
{% for form in formset %}
{% if forloop.first %}
{% for field in form %}
<th>{{ field.label_tag }}</th>
{% endfor %}
{% endif %}
</thead>
<tbody>
<tr>
{% for field in form %}
<td>{{ field }}</td>
{% endfor %}
</tr>
{% endfor %}
</tbody>
</table>
</div>
</section>
<li class="">
<input type="submit" value="Save" class="button">
</li>
</ul>
</fieldset>
</form>
我想在每个报告囤积栏中仅显示相关的预订项目作为选择字段。
我尝试了上面的代码,但没有结果。
答案 0 :(得分:1)
您使用名称formset
定义您的formset,并在此处正确自定义字段的查询集:
for form in formset:
form.fields['hoarding'].queryset = bookeditems.all()
但是您稍后会在视图中覆盖该formset
变量,从而消除该初始逻辑的影响:
if request.method == 'POST':
formset = ReportFormset(request.POST,instance=task_instance)
if formset.is_valid():
formset.save
return redirect('taskreport')
else:
#invaild form, re-render with errors - and no custom querysets
formset = ReportFormset(instance=task_instance)
else:
#non-POST request, render form - again overwriting custom querysets
formset = ReportFormset(instance=task_instance)