Question

无法根据动态下拉列表选择数据。保存用户数据并填充为列表。

夫妇问题：如何将数据从AddData带入SiteData 同样，当用户从code中选择下拉列表SiteData时，如何仅为该SiteData关联或填充数据如何使用site_ip，site_prefix，site_data1，site_data2映射数据code 还注意到，当选择下拉菜单时，我得到的值是数字而不是文本名称。例如：网站68 site_ip 1

模型

class Code (models.Model):
    name = models.CharField(max_length=4, default=None, blank=True, unique=True, error_messages={'unique':"Already in Used"})
    def __str__(self):
        return self.name

class AddData (models.Model):

    code = models.ForeignKey(Code, on_delete=models.CASCADE, null=True)
    data1_ip = models.GenericIPAddressField(protocol='IPv4', unique=True, error_messages={'unique':"Already in Used"})
    data2_prefix = models.CharField(max_length=2, default='22')

    def __str__(self):
          return self.data1_ip

class SiteData (models.Model):

    site = models.ForeignKey(Code, on_delete=models.CASCADE, null=True)
    site_ip = models.ForeignKey(AddData, on_delete=models.CASCADE, null=True)
    site_prefix = models.ForeignKey(AddData, on_delete=models.CASCADE, null=True)
    site_data1 = models.CharField(max_length=3, default='120')
    site_data2 = models.CharField(max_length=1, default='1')

表格

class CODE_Form(forms.ModelForm):
    class Meta:
        model = Code
        fields = ('name',)

class AddData_Form(forms.ModelForm):
    class Meta:
        model = MIDTIER_Add_Site
        fields = ('code', 'data1_ip', 'data2_prefix',)

class SiteData_Form(forms.ModelForm):
    def __init__(self, *args, **kwargs):
        super(SiteData_Form, self).__init__(*args, **kwargs)
        if 'site' in self.data:
            c = self.data.get('site')
            c_ip = self.data.get('site_ip')
            self.fields['site'] = forms.ModelChoiceField(queryset=CODE.objects.filter(name=c))
            self.fields['site_ip'] = forms.ModelChoiceField(queryset=CODE.objects.filter(name=c_ip))

    class Meta:
        model = AddData
        fields = '__all__'
        field_classes = { 'json_field': JSONFormField, }

谢谢您的帮助。

Django动态过滤下拉列表中的数据库

0 个答案: