modelform动态显示select标签的对象范围

既根据当前登录人,动态显示对象相关的的select的选项,例如 A登录,只显示A的客户,B登录,只显示B自己的客户

先了解form的ModelChoiceField字段(这个表格没意义,就是引出参数queryset)

class BookForm(forms.Form):
    title=forms.CharField(max_length=32)
    price=forms.IntegerField()
    pub_date=forms.DateField(widget=widgets.TextInput(attrs={"type":"date"}))
    #publish=forms.ChoiceField(choices=[(1,"AAA"),(2,"BBB")])
    publish=forms.ModelChoiceField(queryset=Publish.objects.all())　　#单选
    authors=forms.ModelMultipleChoiceField(queryset=Author.objects.all()) #多选

默认是显示外键关联表的所有字段,queryset=objects.all()

然后大多数用的是modelform,可以利用field.queryset,动态限制显示对象

class ConsultRecordModel(forms.ModelForm):
    class Meta:
        model=ConsultRecord
        exclude=['delete_status']
    def __init__(self,request,*args,**kwargs):
        super().__init__(*args,**kwargs)
        self.fields['consultant'].queryset = UserInfo.objects.filter(pk=request.user.pk)
        self.fields['customer'].queryset = Customer.objects.filter(consultant=request.user)
        for field in self.fields.values():
            field.widget.attrs.update({'class':'form-control'})

把想展示出来的用户,或者顾客,利用request.user,过滤出来 , 然后在赋值给相关字段的queryset( self.fields['consultant'].queryset ),这样,select展示出来的对象就是自己相关的对象了

view视图一定要把request传过来,不然会飘红~~

form = ConsultRecordModel(request, instance=obj)