Python 简单Django表单/模型保存问题

我想在保存ModelForm时将BooleanField

inuse

设置为True（我使用的是管理区域之外的表单），但我不确定如何操作

型号：

class Location(models.Model):
    place = models.CharField(max_length=100)
    inuse = models.BooleanField()

class Booking(models.Model):
    name = models.CharField(max_length=100, verbose_name="Your name*:")
    place = models.ManyToManyField(Location, blank=True, null=True)

表格：

class BookingForm(ModelForm):

    class Meta:
        model = Booking

        def save(self, commit=True):
            booking = super(BookingForm, self).save(commit=False)
            if commit:
                booking.save()
                self.save_m2m()
                for location in booking.place.all():
                    location.inuse = True
                    print location #nothing prints
                    location.save()

视图：

更新至最新版本（请参阅）。在提交/保存时，它仍然没有将inuse更新为True。

以下是我的建议：

class BookingForm(ModelForm):

    class Meta:
        model = Booking

    def save(self, commit=True):
        booking = super(BookingForm, self).save(commit=False)
        booking.inuse = True
        if commit:
            booking.save()

class BookingForm(ModelForm):
    class Meta:
        model = Booking

    def save(self, commit=True):
        booking = super(BookingForm, self).save(commit=False)
        if commit:
            booking.save()  
            self.save_m2m()
            for location in booking.place.all():
                location.inuse = True
                location.save()

更新

我使用的全部代码：

# models.py
class Location(models.Model):
    place = models.CharField(max_length=100)
    inuse = models.BooleanField()

class Booking(models.Model):
    name = models.CharField(max_length=100, verbose_name="Your name*:")
    place = models.ManyToManyField(Location, blank=True, null=True)

# forms.py
class BookingForm(ModelForm):
    class Meta:
        model = Booking

    def save(self, commit=True):
        booking = super(BookingForm, self).save(commit=False)
        if commit:
            booking.save()
            self.save_m2m()
            for location in booking.place.all():
                location.inuse = True
                location.save()

In [1]: from test_app.forms import BookingForm
In [2]: from test_app.models import Location

# I had already saved some `Location` instances.

In [3]: data = dict(name = 'MyCity', place = [p.id for p in Location.objects.all()])
In [4]: f = BookingForm(data)
In [5]: f.save()
In [6]: for each in Location.objects.all():
   ...:     print each.place, each.inuse
   ...:      
PlaceA True 
PlaceB True 
PlaceC True

---

还有其他的型号吗？

预订

表单的基本模型是什么？

Location

与其他模型（如果有的话）之间的关系是什么？除了您看到的减去一些元etc之外，没有其他关系

models有问题。BooleanField（默认值=True）

？管理员用False添加位置，我只希望在用户在预订表单上选择位置时将其更新为True。@丹尼尔：不应该是

位置。使用
？根据OP
Booking
是一个表单。看起来很有希望，但给了我…TypeError at/super（type，obj）：obj必须是type@RobB:尝试将
booking=super（booking，self）.保存（commit=False）
替换为
booking=super（BookingForm，self）.保存（commit=False）
@Manoj Govindan解决了我的错误消息，但在我提交表单时，在管理中查找位置值尚未更新为true。@Rob B:表单的基础模型是
预订
还是
位置
？Daniel的回答假定是预订
；但我在你的问题中没有看到这样的模型。不会出现任何错误，只是在savenope上没有将位置值更新为True仍然没有运气。不会出错，但似乎什么都不做，只要能正常工作。见上文。诀窍是显式调用self.save_m2m（）

来保存m2m对象。您能粘贴整个模型以便我进行比较吗？我已经检查了三倍了，不是吗working@Manoj戈文丹，谢谢。还是不走运。我的观点会影响什么吗？

# models.py
class Location(models.Model):
    place = models.CharField(max_length=100)
    inuse = models.BooleanField()

class Booking(models.Model):
    name = models.CharField(max_length=100, verbose_name="Your name*:")
    place = models.ManyToManyField(Location, blank=True, null=True)

# forms.py
class BookingForm(ModelForm):
    class Meta:
        model = Booking

    def save(self, commit=True):
        booking = super(BookingForm, self).save(commit=False)
        if commit:
            booking.save()
            self.save_m2m()
            for location in booking.place.all():
                location.inuse = True
                location.save()

In [1]: from test_app.forms import BookingForm
In [2]: from test_app.models import Location

# I had already saved some `Location` instances.

In [3]: data = dict(name = 'MyCity', place = [p.id for p in Location.objects.all()])
In [4]: f = BookingForm(data)
In [5]: f.save()
In [6]: for each in Location.objects.all():
   ...:     print each.place, each.inuse
   ...:      
PlaceA True 
PlaceB True 
PlaceC True