kpsul/bda/forms.py

# -*- coding: utf-8 -*-

from __future__ import division
from __future__ import print_function
from __future__ import unicode_literals

from django import forms
from django.forms.models import BaseInlineFormSet
from django.utils import timezone
from bda.models import Attribution


class BaseBdaFormSet(BaseInlineFormSet):
    def clean(self):
        """Checks that no two articles have the same title."""
        super(BaseBdaFormSet, self).clean()
        if any(self.errors):
            # Don't bother validating the formset unless each form is valid on
            # its own
            return
        spectacles = []
        for i in range(0, self.total_form_count()):
            form = self.forms[i]
            if not form.cleaned_data:
                continue
            spectacle = form.cleaned_data['spectacle']
            delete = form.cleaned_data['DELETE']
            if not delete and spectacle in spectacles:
                raise forms.ValidationError(
                    "Vous ne pouvez pas vous inscrire deux fois pour le "
                    "même spectacle.")
            spectacles.append(spectacle)


class TokenForm(forms.Form):
    token = forms.CharField(widget=forms.widgets.Textarea())


class SpectacleModelChoiceField(forms.ModelChoiceField):
    def label_from_instance(self, obj):
        return "%s le %s (%s) à %.02f€" % (obj.title, obj.date_no_seconds(),
                                           obj.location, obj.price)


class ResellForm(forms.Form):
    attributions = forms.ModelMultipleChoiceField(
                         queryset=Attribution.objects.none(),
                         widget=forms.CheckboxSelectMultiple)

    def __init__(self, participant, *args, **kwargs):
        super(ResellForm, self).__init__(*args, **kwargs)
        self.fields['attributions'].queryset = participant.attribution_set\
            .filter(spectacle__date__gte=timezone.now(),
                    revente__isnull=True)