单击提交按钮后,我的UpdateView不会保存到本地数据库。
views.py
class BHA_UpdateView(UpdateView):
template_name = 'bha_test.html'
context_object_name = 'bha'
model = BHA_overall
success_url = reverse_lazy('well_list')
pk_url_kwarg = 'pk_alt'
form_class = BHA_overall_Form
def get_object(self, queryset=None):
pk = self.kwargs.get(self.pk_url_kwarg)
api = get_well_api(self.request)
current_bha = BHA_List.objects.filter(well=api, id=pk)[0]
return current_bha
forms.py
class BHA_overall_Form(forms.ModelForm):
class Meta():
model = BHA_overall
fields = '__all__'
models.py
class BHA_List(models.Model):
well = models.ForeignKey(WellInfo, 'CASCADE', related_name='bha_list')
bha_number = models.CharField(max_length=100)
class BHA_overall(models.Model):
bha_number = models.ForeignKey(BHA_List, 'CASCADE', related_name='bha_overall')
drill_str_name = models.CharField(max_length=111)
depth_in = models.CharField(max_length=111)
bha_test.html
<form method="POST">
{% csrf_token %}
{{ form.as_p }}
<input type="submit" class='btn btn-primary' value="Submit">
</form>
有人告诉我,在UpdateView中,模型和表单应引用相同的内容。所以我做到了,但仍然无法正常工作。这是我的original question:
如何修改代码,以便将表单保存到数据库中?
更新:
BHA_List
包含BHA对象的列表。每个BHA对象都有许多子对象,BHA_overall
是其中之一。
我的网址看起来像这样:
re_path(r'^bha/(?P<pk_alt>[-\w]+)$', base_views.BHA_UpdateView.as_view(), name='bha')
理想情况下,pk_url_kwarg = 'pk_alt'
应该在BHA_List
中查找对象,并导航到一个页面,您可以在其中更新有关BHA_List
中该特定对象的信息。您可以更新的字段包括BHA_overall
中的字段。
所以看起来像这样:
You can now edit [ BHA 2 ]: # url = .../bha/2
BHA Overall Information -
Drill_str_name: []
Depth_in: []
...
Other Child Model -
other_field: []
other_field: []
我需要pk_url_kwarg = 'pk_alt'
来查询BHA_List
实例以生成唯一的url
,并且我需要BHA_overall_Form
显示用户可以编辑的输入字段,并将该用户输入保存到D B。那我还要在这里使用什么CBV?
答案 0 :(得分:1)
您的get_object
方法返回BHA_list
对象。但是您的视图和表单的模型是BHA_overall
。因此,get_object
还应该返回要更新的BHA_overall
实例:
def get_object(self, queryset=None):
pk = self.kwargs.get(self.pk_url_kwarg)
api = get_well_api(self.request)
bha_number = BHA_List.objects.filter(well=api, id=pk)[0]
current_bha = BHA_overall.objects.filter(bha_number=bha_number)[0]
return current_bha