我创建了联系表格，但复选标记不显示该选项，框非常窄。所以当以管理员身份登录并尝试添加联系人时，我在那里看不到选项。这里是models.py和forms.py和截图。

models.py

class Location(models.Model):
    name = models.CharField(max_length=50)

    def __str__(self):
        return self.name
    
class Contact(models.Model):

    
    LOCATION_INHOME = (
        ('kitchen', 'Kitchen'),
        ('bathroom', 'Bathroom'),
        ('bedroom', 'Bedroom'),
        ('livingroom', 'Living Room'),
        ('basement', 'Basement'),
        ('garage', 'Garage'),
        ('office', 'Office'),
        ('hallway', 'Hallway'),
        ('stairway', 'Stairway'),
        ('recreationroom', 'Recreation Room'),
        ('closet', 'Closet'),
        ('other', 'Other'),
    )

    
    location_in_home = models.ManyToManyField(Location)
    

    
class ContactForm(ModelForm):
    
    model = Contact
    fields = '__all__'
        
    class Meta:
        model = Contact
        fields = '__all__'

forms.py

from django import forms
from django.forms import ModelForm
from .models import Contact

class ContactForm(forms.ModelForm):
    
    class Meta:
        model = Contact
        fields = [

            'location_in_home',

        ]
        
        widgets = {
            'location_in_home': forms.CheckboxSelectMultiple(),
        }

这里是admin.py

class ContactAdmin(admin.ModelAdmin):

    list_filter = ('location_in_home')

admin.site.register(Contact, ContactAdmin)