forked from DGNum/gestioCOF
Fewer db requests on bda views.
bda.views.etat_places - Use select_related on spectacles_set, avoid query issue for each spectacle. - `slots__sum` is computed in view, instead of a query. - Cleaner code (and avoid useless computations). bda.views.places - Add select_related on places, avoid query issue for each spectacle. bda.views.inscription - 1 query for spectacle field choices, instead of (#forms in formset * #spectacles) - Delete BaseBdaFormSet. The validation was redundant with `unique_together` of ChoixSpectacle model.
This commit is contained in:
Aurélien Delobelle
parent
b8aa5d8bbe
commit
3e0bd2e758
23
bda/forms.py
23
bda/forms.py
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@ -5,33 +5,10 @@ from __future__ import print_function
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from __future__ import unicode_literals
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from django import forms
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from django.forms.models import BaseInlineFormSet
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from django.utils import timezone
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from bda.models import Attribution, Spectacle
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class BaseBdaFormSet(BaseInlineFormSet):
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def clean(self):
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"""Checks that no two articles have the same title."""
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super(BaseBdaFormSet, self).clean()
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if any(self.errors):
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# Don't bother validating the formset unless each form is valid on
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# its own
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return
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spectacles = []
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for i in range(0, self.total_form_count()):
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form = self.forms[i]
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if not form.cleaned_data:
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continue
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spectacle = form.cleaned_data['spectacle']
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delete = form.cleaned_data['DELETE']
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if not delete and spectacle in spectacles:
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raise forms.ValidationError(
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"Vous ne pouvez pas vous inscrire deux fois pour le "
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"même spectacle.")
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spectacles.append(spectacle)
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class TokenForm(forms.Form):
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token = forms.CharField(widget=forms.widgets.Textarea())
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152
bda/views.py
152
bda/views.py
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@ -1,5 +1,6 @@
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# -*- coding: utf-8 -*-
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from functools import partial
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import random
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import hashlib
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import time
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@ -11,9 +12,9 @@ from custommail.shortcuts import (
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from django.shortcuts import render, get_object_or_404
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from django.contrib.auth.decorators import login_required
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from django.contrib import messages
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from django.db import models, transaction
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from django.db import transaction
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from django.core import serializers
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from django.db.models import Count, Q, Sum
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from django.db.models import Count, Q
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from django.forms.models import inlineformset_factory
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from django.http import (
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HttpResponseBadRequest, HttpResponseRedirect, JsonResponse
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@ -29,8 +30,7 @@ from bda.models import (
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)
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from bda.algorithm import Algorithm
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from bda.forms import (
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BaseBdaFormSet, TokenForm, ResellForm, AnnulForm, InscriptionReventeForm,
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SoldForm
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TokenForm, ResellForm, AnnulForm, InscriptionReventeForm, SoldForm,
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)
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@ -44,39 +44,44 @@ def etat_places(request, tirage_id):
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Et le total de toutes les demandes
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"""
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tirage = get_object_or_404(Tirage, id=tirage_id)
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spectacles1 = ChoixSpectacle.objects \
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.filter(spectacle__tirage=tirage) \
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.filter(double_choice="1") \
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.all() \
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.values('spectacle', 'spectacle__title') \
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.annotate(total=models.Count('spectacle'))
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spectacles2 = ChoixSpectacle.objects \
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.filter(spectacle__tirage=tirage) \
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.exclude(double_choice="1") \
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.all() \
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.values('spectacle', 'spectacle__title') \
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.annotate(total=models.Count('spectacle'))
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spectacles = tirage.spectacle_set.all()
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spectacles_dict = {}
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total = 0
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spectacles = tirage.spectacle_set.select_related('location')
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spectacles_dict = {} # index of spectacle by id
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for spectacle in spectacles:
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spectacle.total = 0
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spectacle.ratio = 0.0
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spectacle.total = 0 # init total requests
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spectacles_dict[spectacle.id] = spectacle
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for spectacle in spectacles1:
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spectacles_dict[spectacle["spectacle"]].total += spectacle["total"]
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spectacles_dict[spectacle["spectacle"]].ratio = \
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spectacles_dict[spectacle["spectacle"]].total / \
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spectacles_dict[spectacle["spectacle"]].slots
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total += spectacle["total"]
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for spectacle in spectacles2:
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spectacles_dict[spectacle["spectacle"]].total += 2*spectacle["total"]
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spectacles_dict[spectacle["spectacle"]].ratio = \
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spectacles_dict[spectacle["spectacle"]].total / \
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spectacles_dict[spectacle["spectacle"]].slots
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total += 2*spectacle["total"]
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choices = (
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ChoixSpectacle.objects
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.filter(spectacle__in=spectacles)
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.values('spectacle')
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.annotate(total=Count('spectacle'))
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)
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# choices *by spectacles* whose only 1 place is requested
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choices1 = choices.filter(double_choice="1")
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# choices *by spectacles* whose 2 places is requested
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choices2 = choices.exclude(double_choice="1")
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for spectacle in choices1:
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pk = spectacle['spectacle']
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spectacles_dict[pk].total += spectacle['total']
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for spectacle in choices2:
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pk = spectacle['spectacle']
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spectacles_dict[pk].total += 2*spectacle['total']
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# here, each spectacle.total contains the number of requests
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slots = 0 # proposed slots
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total = 0 # requests
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for spectacle in spectacles:
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slots += spectacle.slots
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total += spectacle.total
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spectacle.ratio = spectacle.total / spectacle.slots
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context = {
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"proposed": tirage.spectacle_set.aggregate(Sum('slots'))['slots__sum'],
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"proposed": slots,
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"spectacles": spectacles,
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"total": total,
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'tirage': tirage
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@ -94,11 +99,16 @@ def _hash_queryset(queryset):
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@cof_required
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def places(request, tirage_id):
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tirage = get_object_or_404(Tirage, id=tirage_id)
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participant, created = Participant.objects.get_or_create(
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user=request.user, tirage=tirage)
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places = participant.attribution_set.order_by(
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"spectacle__date", "spectacle").all()
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total = sum([place.spectacle.price for place in places])
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participant, _ = (
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Participant.objects
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.get_or_create(user=request.user, tirage=tirage)
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)
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places = (
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participant.attribution_set
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.order_by("spectacle__date", "spectacle")
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.select_related("spectacle", "spectacle__location")
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)
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total = sum(place.spectacle.price for place in places)
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filtered_places = []
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places_dict = {}
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spectacles = []
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@ -148,33 +158,62 @@ def inscription(request, tirage_id):
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return render(request, 'bda/resume-inscription-tirage.html', {})
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if timezone.now() > tirage.fermeture:
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# Le tirage est fermé.
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participant, created = Participant.objects.get_or_create(
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user=request.user, tirage=tirage)
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choices = participant.choixspectacle_set.order_by("priority").all()
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participant, _ = (
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Participant.objects
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.get_or_create(user=request.user, tirage=tirage)
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)
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choices = participant.choixspectacle_set.order_by("priority")
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messages.error(request,
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" C'est fini : tirage au sort dans la journée !")
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return render(request, "bda/resume-inscription-tirage.html",
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{"choices": choices})
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def formfield_callback(f, **kwargs):
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def force_for(f, to_choices=None, **kwargs):
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"""Overrides choices for ModelChoiceField.
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Args:
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f (models.Field): To render as forms.Field
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to_choices (dict): If a key `f.name` exists, f._choices is set to
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its value.
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"""
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Fonction utilisée par inlineformset_factory ci dessous.
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Restreint les spectacles proposés aux spectacles du bo tirage.
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"""
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if f.name == "spectacle":
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kwargs['queryset'] = tirage.spectacle_set
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return f.formfield(**kwargs)
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formfield = f.formfield(**kwargs)
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if to_choices:
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if f.name in to_choices:
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choices = [('', '---------')] + to_choices[f.name]
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formfield._choices = choices
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return formfield
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# Restrict spectacles choices to spectacles for this tirage.
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spectacles = (
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tirage.spectacle_set
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.select_related('location')
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)
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spectacles_field_choices = [(sp.pk, str(sp)) for sp in spectacles]
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# Allow for spectacle choices to be set once for all.
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# Form display use 1 request instead of (#forms of formset * #spectacles).
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# FIXME: Validation still generates too much requests...
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formfield_callback = partial(
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force_for,
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to_choices={
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'spectacle': spectacles_field_choices,
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},
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)
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BdaFormSet = inlineformset_factory(
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Participant,
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ChoixSpectacle,
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fields=("spectacle", "double_choice", "priority"),
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formset=BaseBdaFormSet,
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formfield_callback=formfield_callback)
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participant, created = Participant.objects.get_or_create(
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user=request.user, tirage=tirage)
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formfield_callback=formfield_callback,
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)
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participant, _ = (
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Participant.objects
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.get_or_create(user=request.user, tirage=tirage)
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)
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success = False
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stateerror = False
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if request.method == "POST":
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# use *this* queryset
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dbstate = _hash_queryset(participant.choixspectacle_set.all())
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if "dbstate" in request.POST and dbstate != request.POST["dbstate"]:
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stateerror = True
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@ -187,9 +226,14 @@ def inscription(request, tirage_id):
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formset = BdaFormSet(instance=participant)
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else:
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formset = BdaFormSet(instance=participant)
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# use *this* queryset
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dbstate = _hash_queryset(participant.choixspectacle_set.all())
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total_price = 0
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for choice in participant.choixspectacle_set.all():
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choices = (
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participant.choixspectacle_set
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.select_related('spectacle')
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)
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for choice in choices:
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total_price += choice.spectacle.price
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if choice.double:
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total_price += choice.spectacle.price
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