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问题:
I have a MultipleChoiceField with a CheckboxSelectMutliple widget:
weight_training_days = forms.MultipleChoiceField( help_text=u'(Required) 3 days must be selected', widget=forms.CheckboxSelectMultiple(attrs={ 'inline': True, }), choices=( (0, "Mon"), (1, "Tue"), (2, "Wed"), (3, "Thu"), (4, "Fri"), (5, "Sat"), (6, "Sun"), ), )
What I'm trying to is dynamically set 3 of the 7 checkboxes to "True". Ideally I would do this from the view.
def change_challenge_settings_page(request): c = Challenge.objects.get(user__exact = request.user,chal_status=1) layout = 'horizontal' form =UpdateChallengeSettingsForm(initial={'goal': c.level_goal }) return render(request, 'portal/portal_change_challenge_settings.html', {'form': form,'layout': layout,'scorecard_page': True,})
I know how to do this with ChoiceFields (in the example above the "goal" is a ChoiceField) but am stuck when it comes to MultipleChoiceFields. I really appreciate any thoughts/feedback.
回答1:
You can set the initial to be a list. In this case if you set YourForm(inital={'weight_training_days': [0,1,2]}) it will default to having Monday, Tuesday and Wednesday selected. You can also do it like so forms.MultipleChoiceField(... inital=[0,1,2] ...)
回答2:
It's fairly simple, just pass a list. Here's a full example:
from django import forms class UpdateChallengeSettingsForm(forms.Form): weight_training_days = forms.MultipleChoiceField( help_text=u'(Required) 3 days must be selected', widget=forms.CheckboxSelectMultiple(attrs={ 'inline': True, }), choices=( (0, "Mon"), (1, "Tue"), (2, "Wed"), (3, "Thu"), (4, "Fri"), (5, "Sat"), (6, "Sun"), ), ) form = UpdateChallengeSettingsForm(initial={ 'weight_training_days': [1,2,4,5,6], }) print form.as_p()
And the output:
<p><label for="id_weight_training_days_0">Weight training days:</label> <ul> <li><label for="id_weight_training_days_0"><input inline="True" type="checkbox" name="weight_training_days" value="0" id="id_weight_training_days_0" /> Mon</label></li> <li><label for="id_weight_training_days_1"><input checked="checked" name="weight_training_days" value="1" inline="True" type="checkbox" id="id_weight_training_days_1" /> Tue</label></li> <li><label for="id_weight_training_days_2"><input checked="checked" name="weight_training_days" value="2" inline="True" type="checkbox" id="id_weight_training_days_2" /> Wed</label></li> <li><label for="id_weight_training_days_3"><input inline="True" type="checkbox" name="weight_training_days" value="3" id="id_weight_training_days_3" /> Thu</label></li> <li><label for="id_weight_training_days_4"><input checked="checked" name="weight_training_days" value="4" inline="True" type="checkbox" id="id_weight_training_days_4" /> Fri</label></li> <li><label for="id_weight_training_days_5"><input checked="checked" name="weight_training_days" value="5" inline="True" type="checkbox" id="id_weight_training_days_5" /> Sat</label></li> <li><label for="id_weight_training_days_6"><input checked="checked" name="weight_training_days" value="6" inline="True" type="checkbox" id="id_weight_training_days_6" /> Sun</label></li> </ul> <span class="helptext">(Required) 3 days must be selected</span></p>
