python - Django 中的单选按钮

Question

尝试寻找解决方案，但我有一个不同的问题，但找不到与之相关的任何内容我创建了一个 django 表单，其中包含 models.py 中的字段

表单.py

from .models import ProValue
from django import forms


class SchoolInput(forms.ModelForm):
    school_name = forms.CharField(
        max_length=255, required=True, widget=forms.TextInput(
            attrs={
                'class': 'input'
            }
        ))
    level_of_grades = forms.IntegerField(min_value=1, required=True)
    num_of_days = forms.IntegerField(min_value=1, max_value=7, required=True)
    division_check = forms.ChoiceField(
        label='Do you have multiple divisions for your grades?', widget=forms.RadioSelect)

    class Meta:
        model = ProValue
        answer = (
            ('no', 'no'),
            ('yes', 'yes')
        )
        fields = [
            'school_name',
            'level_of_grades',
            'num_of_days',
            'division_check',
        ]

这样我就看不到页面上的单选按钮了我尝试过这样做

    division_check = forms.ChoiceField(
        label='Do you have multiple divisions for your grades?', widget=forms.RadioSelect())

和

    division_check = forms.ChoiceField(
        label='Do you have multiple divisions for your grades?', widget=forms.RadioSelect(choice=answer))

这告诉我答案未定义

这是我的 models.py

from django.db import models
from django import forms


class ProValue(models.Model):
    school_name = models.CharField(max_length=50)
    level_of_grades = models.IntegerField()
    num_of_days = models.IntegerField()
    answer = (
        ('Yes', 'Yes'),
        ('No', 'No'),
    )
    division_check = models.CharField(
        max_length=5, choices=answer)

另外，我需要在 Meta 类中再次定义答案吗？我一开始没有这样做，我尝试解决上述问题但仍然无法解决。

Answer 1

您在 Meta 类中定义了 answer，但它不在您定义小部件时的范围内。

您可以引用模型中的选项，例如:

from .models import ProValue
from django import forms


class SchoolInput(forms.ModelForm):
    school_name = forms.CharField(
        max_length=255, required=True, widget=forms.TextInput(
            attrs={
                'class': 'input'
            }
    ))
    level_of_grades = forms.IntegerField(min_value=1, required=True)
    num_of_days = forms.IntegerField(min_value=1, max_value=7, required=True)
    division_check = forms.ChoiceField(
        label='Do you have multiple divisions for your grades?',
        <b>choices=ProValue.answer</b>,
        widget=forms.RadioSelect
    )

    class Meta:
        model = ProValue
        fields = [
            'school_name',
            'level_of_grades',
            'num_of_days',
            'division_check',
        ]