我有一个工作完美的表单
模型.py:
class Location(models.Model):
title = models.CharField(max_length=300)
description = models.TextField(null=True, blank=True)
address = models.TextField(null=True, blank=True)
class Review (models.Model):
location = models.ForeignKey(Location)
description = models.TextField(null=True, blank=True)
views.py:
class Create(CreateView):
model = coremodels.Review
template_name = 'location/test.html'
fields = '__all__'
def form_valid(self, form):
form.save()
return HttpResponseRedirect('')
return super(Create, self).form_valid(form)
html:
<form action="" method="post">{% csrf_token %}
{{ form}}
<input type="submit" value="Create" />
</form>
当我打开网站时,我可以选择一个位置并通过创建按钮进行评论。但是,现在我依赖于 Location 类中预填充的值。如果我希望用户可以直接创建描述以及位置标题(我不希望标题位于 class Review
中),我已经尝试在文档中查找此内容,该怎么办但找不到任何东西。我在某处读到我可以创建两种不同的形式来处理不同的事情,但我不确定如何将所有内容合并到类Create
中。有没有类似 model = coremodels.Review & coremodels.Location
的东西,然后在 html 中我可以这样做
{{form.title}}
{{form.description}}
我可以寻找任何想法或搜索词吗?
谢谢!
编辑 好的,感谢 Ruddra 和 this post ,这是工作解决方案。我必须对其进行一些编辑才能使其为我工作,
class SomeForm(forms.ModelForm):
def __init__(self, *args, **kwargs):
super(SomeForm, self).__init__(*args, **kwargs)
self.fields['title'] = forms.CharField(label='Title', required = False)
self.fields['description'] = forms.CharField(label='Description', required = False)
self.fields['location'] = forms.ModelChoiceField(queryset= Location.objects.all(), required = False) # This line is for making location not required in form field for input
class Meta:
model = Review
fields = '__all__'
def save(self, commit=True):
"""
It will save location from choice field or inputs of title and description
"""
instance = super(SomeForm, self).save(commit=False)
if instance.location_id:
instance.save()
else:
new_location = Location.objects.create(title=self.cleaned_data['title'])
instance.location = new_location
instance.save()
return instance
和views.py
class Create(CreateView):
model = coremodels.Review
template_name = 'location/test.html'
form_class = SomeForm
最佳答案
不幸的是,您不能使用这样的两个模型,您必须编写一个表单并在那里执行操作。例如:
class SomeForm(forms.ModelForm):
def __init__(self, *args, **kwargs):
super().__init__(*args, **kwargs)
self.fields['title'] = forms.CharField(label='Title', required = False)
self.fields['description'] = forms.CharField(label='Description', required = False)
self.fields['location'] = forms.ModelChoiceField(queryset= Location.objects.all(), required = False) # This line is for making location not required in form field for input
class Meta:
model = Review
fields = '__all__'
def save(self, commit=True):
"""
It will save location from choice field or inputs of title and description
"""
instance = super().save(commit=False)
if instance.location:
instance.save()
else:
new_location = Location.objects.create(title=self.cleaned_data['title'], description = self.cleaned_data['description']])
instance.location = new_location
instance.save()
return instance
在 View 中使用它:
class Create(CreateView):
model = coremodels.Review
template_name = 'location/test.html'
form = SomeForm
并且您已确保位置可以为空或表单中不需要(我已将其添加到示例中)
关于python - 表单中不同模型的 2 个字段,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/32000147/