我有一个django表单instellinginfo,它有几个输入字段。所有这些都是必需的。但是,根据“spelmodus”的输入,“tijd”或“woorden”应该变成required=False。(如果在“spelmodus”中选择了“tijd”,则“woorden”形式应更改为required=False,反之亦然)我尝试使用clean()函数来实现这一点,但我似乎不知道如何准确地实现这一点
forms.py:
from django import forms
SPELMODUS = [
("", ""),
('tijd', 'Tijd'),
('woorden', 'Woorden'),
]
TIJD = [
("", ""),
('een', '1 minuut'),
('twee', '2 minuten'),
('vijf', '5 minuten'),
]
WOORDEN = [
("", ""),
('vijftig', '50 woorden'),
('honderd', '100 woorden'),
('honderdvijftig', '150 woorden'),
]
TALEN = [
("", ""),
('nederlands', 'Nederlands'),
('engels', 'Engels'),
]
MOEILIJKHEID = [
("", ""),
('makkelijk', 'Makkelijk'),
('gemiddeld', 'Gemiddeld'),
('moeilijk', 'Moeilijk'),
]
class InstellingenForm(forms.Form):
naam = forms.CharField(label="Naam", max_length=10, required=True, widget=forms.TextInput(attrs={'class': 'input-container'}))
spelmodus = forms.ChoiceField(label="Spelmodus", choices=SPELMODUS, required=True, widget=forms.Select(attrs={'class': 'input-container', 'id': 'spelmodus', 'onchange': 'hideShow(this.value)', }))
tijd = forms.ChoiceField(label="", choices=TIJD, widget=forms.Select(attrs={'class': 'input-container', 'id': 'tijdClass'}))
woorden = forms.ChoiceField(label="", choices=WOORDEN, widget=forms.Select(attrs={'class': 'input-container', 'id': 'woordenClass'}))
taal = forms.ChoiceField(label="Taal", choices=TALEN, required=True, widget=forms.Select(attrs={'class': 'input-container'}))
moeilijkheid = forms.ChoiceField(label="Moeilijkheid", choices=MOEILIJKHEID, required=True, widget=forms.Select(attrs={'class': 'input-container'}))
def clean(self):
if self.data.get('spelmodus', 'tijd'):
self.fields['woorden'].required = False
elif self.data.get('spelmodus', 'woorden'):
self.fields['tijd'].required = False
super(InstellingenForm, self)._clean_fields()
views.py:
def instellingenDatabase(request):
if request.method == "POST":
form = InstellingenForm(request.POST)
if form.is_valid():
return HttpResponseRedirect('/')
rendered = render(request, 'instellingenDatabase.html', {
'formulier': form
})
return HttpResponse(rendered)
instellingendabase.html:
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
{% load static %}
<link rel="stylesheet" type="text/css" href="{% static 'instellingen.css' %}">
<script type='text/javascript' src="{% static 'instellingen.js' %}"></script>
</head>
<body>
{% include "header.html" %}
<div class="bodypage">
<div class="settings-container">
<div class="playText">
Play
</div>
<form method="post">
{% csrf_token %}
<table>
{% for field in formulier %}
{{ field.label }}
{{ field }}
{% endfor %}
</table>
<br>
<button type="submit" name="Start" value="Start" class="button">Start</button>
</form>
</div>
</div>
</body>
</html>
您的方法不起作用,因为在调用
clean
之前,字段已被清理。对于您可能要对表单进行的这些类型的更改,您应该重写__init__
:而且,您从未在视图中使用过该表单。您只将其传递给上下文并进行渲染。如果要检查表单是否有效,则需要使用
is_valid
方法。您已经在编辑中添加了该选项,但现在您从未在GET请求中创建表单,您也需要这样做:此外,当您手动渲染表单时,最好也渲染错误,这样用户就可以知道出错的原因:
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