python - CheckboxSelectMultiple Django 提取(如果选中或未选中)

Question

我陷入了“CheckboxSelectMultiple”，我不知道如何提取用户选择的内容和未选择的内容。

例如，我的forms.py:

from django import forms

FAVORITE_COLORS_CHOICES = (
    ('blue', 'Blue'),
    ('green', 'Green'),
    ('black', 'Black'),
)


class MyForm(forms.Form):
    favorite_colors = forms.MultipleChoiceField(
        required=False,
        widget=forms.CheckboxSelectMultiple,
        choices=FAVORITE_COLORS_CHOICES,
    )

我的观点.py:

from accounts.forms import MyForm

def my_view(request):
    form = MyForm(request.POST or None)
    if request.method == "POST":
        if form.is_valid():
            try:
                if request.POST["favorite_colors"]:
                    print(request.POST["favorite_colors"])
            except:
                print(request.POST["favorite_colors"])
    return render(request, 'accounts/form.html', {'form': form})

目前，它为我提供了最后选择的复选框，我如何检查是否选择了特定复选框？ (例如 'if request.POST["favorite_colors.blue"]: print('blue')' 或类似的内容)。

Answer 1

尝试这样的事情吗？

def my_view(request):
    form = MyForm(request.POST or None)
    if request.method == "POST":
        if form.is_valid():
            print("Selected: " + form.cleaned_data['favorite_colors'])
        else:
            print("error")

    return render(request, 'accounts/form.html', {'form': form})