Django 动态表单字段 - 如何更改？答案

【问题标题】：Django Dynamic Form Field - how to change?Django 动态表单字段 - 如何更改？
【发布时间】：2020-06-26 02:27:02
【问题描述】：

在我下面的 Django 表单中

class Form_Vechicle(forms.ModelForm):
    flatno_id = forms.ModelChoiceField(widget=forms.Select(
        attrs={'class': 'form-control form-control-sm'}),
        required=True, help_text="Select flat No from the list", empty_label="Select flat no",
        queryset=FlatNo.objects.filter(is_deleted=False).order_by("flatindex"),
        label="Flat No")

    reg_no = forms.CharField(
        widget=forms.TextInput(attrs={'class': 'form-control form-control-sm'}),
        required=True, min_length=2, max_length=15, help_text="Regtration No", label="Veh No")

    detail = forms.CharField(widget=forms.TextInput(
        attrs={'class': 'form-control form-control-sm'}),
        required=True, max_length=25, help_text="make/modal",
        label="Brand")


    class Meta:
        model = Vehicle
        fields = ['flatno_id', 'reg_no', 'detail' ]

如何根据用户登录类型动态更改表单字段小部件

如果用户是超级用户，则此表单没有变化。

对于所有其他用户（非超级用户），我想隐藏 flatno_id 字段

flatno_id = widgets.HiddenInput()

对此的任何帮助将不胜感激。提前非常感谢。

【问题讨论】：

标签： django django-forms

【解决方案1】：

你可以试试这个方法来隐藏或显示模型表单中的a字段

class Form_Vechicle(forms.ModelForm):
    flatno_id = forms.ModelChoiceField(widget=forms.Select(
        attrs={'class': 'form-control form-control-sm'}),
        required=True, help_text="Select flat No from the list", empty_label="Select flat no",
        queryset=FlatNo.objects.filter(is_deleted=False).order_by("flatindex"),
        label="Flat No")

    reg_no = forms.CharField(
        widget=forms.TextInput(attrs={'class': 'form-control form-control-sm'}),
        required=True, min_length=2, max_length=15, help_text="Regtration No", label="Veh No")

    detail = forms.CharField(widget=forms.TextInput(
        attrs={'class': 'form-control form-control-sm'}),
        required=True, max_length=25, help_text="make/modal",
        label="Brand")


    class Meta:
        model = Vehicle
        fields = ['flatno_id', 'reg_no', 'detail' ]
    def __init__(*args, **kwargs):
        super().__init__(*args, **kwargs)
        if !(request.user.is_superuser):
            self.fields['flatno_id'].widget = forms.HiddenInput()

【讨论】：

【解决方案2】：

你可以重载 init 表单

def __init__(*args, **kwargs):
    super().__init__(*args, **kwargs)
    if IF_CASE:
        self.fields['flatno_id'].widget = forms.HiddenInput()

【讨论】：