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90 lines
2.4 KiB
Python
90 lines
2.4 KiB
Python
# Copyright (C) 2018-2020 by BDE ENS Paris-Saclay
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# SPDX-License-Identifier: GPL-3.0-or-later
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from django import forms
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from .base import WEISurvey, WEISurveyInformation, WEISurveyAlgorithm
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from ...models import Bus
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class WEISurveyForm2020(forms.Form):
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"""
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Survey form for the year 2020.
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For now, that's only a Bus selector.
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TODO: Do a better survey (later)
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"""
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bus = forms.ModelChoiceField(
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Bus.objects,
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)
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def set_registration(self, registration):
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"""
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Filter the bus selector with the buses of the current WEI.
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"""
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self.fields["bus"].queryset = Bus.objects.filter(wei=registration.wei)
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class WEISurveyInformation2020(WEISurveyInformation):
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"""
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We store the id of the selected bus. We store only the name, but is not used in the selection:
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that's only for humans that try to read data.
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"""
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chosen_bus_pk = None
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chosen_bus_name = None
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class WEISurvey2020(WEISurvey):
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"""
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Survey for the year 2020.
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"""
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@classmethod
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def get_year(cls):
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return 2020
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@classmethod
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def get_survey_information_class(cls):
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return WEISurveyInformation2020
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def get_form_class(self):
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return WEISurveyForm2020
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def update_form(self, form):
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"""
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Filter the bus selector with the buses of the WEI.
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"""
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form.set_registration(self.registration)
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def form_valid(self, form):
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bus = form.cleaned_data["bus"]
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self.information.chosen_bus_pk = bus.pk
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self.information.chosen_bus_name = bus.name
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self.save()
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@classmethod
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def get_algorithm_class(cls):
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return WEISurveyAlgorithm2020
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def is_complete(self) -> bool:
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"""
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The survey is complete once the bus is chosen.
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"""
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return self.information.chosen_bus_pk is not None
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class WEISurveyAlgorithm2020(WEISurveyAlgorithm):
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"""
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The algorithm class for the year 2020.
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For now, the algorithm is quite simple: the selected bus is the chosen bus.
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TODO: Improve this algorithm.
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"""
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@classmethod
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def get_survey_class(cls):
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return WEISurvey2020
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def run_algorithm(self):
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for registration in self.get_registrations():
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survey = self.get_survey_class()(registration)
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survey.select_bus(Bus.objects.get(pk=survey.information.chosen_bus_pk))
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survey.save()
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