我有一个属性模型如下=
class Property(models.Model):
property_type = models.CharField(max_length=255, default='Apartment')
specifications = models.CharField(max_length=255, default='Basic')
built_up_area = models.FloatField(max_length=6, null=False, default=0)
total_area = models.FloatField(null=False, default=0)
number_of_bedrooms = models.CharField(max_length=3, default=1)
number_of_bathrooms = models.CharField(max_length=3, default=1)
number_of_parking_spaces = models.CharField(max_length=2, default=0)
address_line_one = models.CharField(max_length=255, null=False)
address_line_two = models.CharField(max_length=255, null=True, default=None)
connectivity = models.CharField(max_length=255, default=None, null=True)
neighborhood_quality = models.CharField(max_length=255, default=None,
null=True)
comments = models.CharField(max_length=255, default=None, null=True)
city = models.ForeignKey('City')
state = models.ForeignKey('State')
pin_code = models.ForeignKey('PinCode')
developer = models.ForeignKey('Developer', null=True, default=None)
owner = models.ForeignKey('Owner', null=True, default=None)
created_by = models.ForeignKey('custom_user.User')
project = models.ForeignKey('Project')
def __unicode__(self):
return self.property_type
class Meta:
verbose_name_plural = 'Properties'
城市模型如下 -
class City(models.Model):
name = models.CharField(max_length=255)
slug = models.SlugField(unique=True)
def save(self, *args, **kwargs):
self.slug = slugify(self.name)
super(City, self).save(*args, **kwargs)
def __unicode__(self):
return self.name
现在我想制作一个表单,我可以输入房产详细信息,在进入城市时,我可以输入城市名称,而不是从下拉列表中选择。
那么如何使用inlineformset_factory创建内联formset来创建表单?
== EDIT ==
我尝试使用以下代码创建formset
CityFormset = inlineformset_factory(City, Property,
fields=('city',),
extra=0,
min_num=1,
can_delete=False)
答案 0 :(得分:4)
您误解了内联格式是什么。它用于编辑"很多"一对多关系的一面:也就是说,给定City的父模型,您可以编辑内联属于该城市的各种属性。
您根本不想要一个formset来简单地编辑一个属性可以属于的单个城市。相反,将“属性”表单中的city
字段覆盖为TextField,然后在clean_city
方法中创建新城市或查找现有城市。
class PropertyForm(forms.ModelForm):
city = forms.TextField(required=True)
class Meta:
model = Property
exclude = ('city',)
def __init__(self, *args, **kwargs):
super(PropertyForm, self).__init__(*args, **kwargs)
if self.instance and not self.data:
self.initial['city'] = self.instance.city.name
def save(self, commit=True):
city_name = self.cleaned_data['city']
city, _ = City.objects.get_or_create(name=city_name)
instance = self.save(commit=False)
instance.city = city
if commit = True:
instance.save()
return instance