python - Django Form ChoiceField 在 View in Form initial 中设置选项

Question

这是表格

class Form(Models.Form):
    title = forms.ChoiceField()

我需要根据我在查询集中获得的内容在标题字段中设置选择值，该怎么做？？

def func(request):
    titles = Titel.objects.all() 
    form = Form(initial={ "title": "???titles???"})
    return render('template.html', locals())

Answer 1

form = Form()
form.fields['title'].choices = [(title.title, title.title) for title in titles]
form.fields['title'].initial = titles[0].title  # by default first will be selected

所以它将返回包含像这样的元组的列表

[('title1', 'title1'), (title2, title2), ... , ('title(n)', 'title(n)'),]

对于您的下拉菜单，您将拥有这种选择选项

<option value="title1">title1</option>