kpsul/gestioncof/petits_cours_views.py

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# coding: utf-8
from django.shortcuts import render, get_object_or_404, redirect
from django.core import mail
from django.core.mail import EmailMessage
from django.forms import ModelForm
from django import forms
from django.forms.models import inlineformset_factory, BaseInlineFormSet
from django.contrib.auth.models import User
from django.views.generic import ListView
from django.utils.decorators import method_decorator
from django.views.decorators.csrf import csrf_exempt
from django.template import loader, Context
from django.conf import settings
from django.contrib.auth.decorators import login_required
from django.db.models import Min
from gestioncof.models import CofProfile
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from gestioncof.petits_cours_models import *
from gestioncof.decorators import buro_required
from gestioncof.shared import lock_table, unlock_tables
from captcha.fields import ReCaptchaField
from datetime import datetime
import base64
import simplejson
def render_template(template_path, data):
tmpl = loader.get_template(template_path)
context = Context(data)
return tmpl.render(context)
class DemandeListView(ListView):
model = PetitCoursDemande
template_name = "petits_cours_demandes_list.html"
paginate_by = 20
def get_queryset(self):
return PetitCoursDemande.objects.order_by('traitee','-id').all()
@method_decorator(buro_required)
def dispatch(self, *args, **kwargs):
return super(DemandeListView, self).dispatch(*args, **kwargs)
@buro_required
def details(request, demande_id):
demande = get_object_or_404(PetitCoursDemande, id = demande_id)
attributions = PetitCoursAttribution.objects.filter(demande = demande).all()
return render(request, "details_demande_petit_cours.html",
{"demande": demande,
"attributions": attributions})
def _get_attrib_counter(user, matiere):
counter, created = PetitCoursAttributionCounter.objects.get_or_create(user = user,
matiere = matiere)
if created:
mincount = PetitCoursAttributionCounter.objects.filter(matiere = matiere).exclude(user = user).all().aggregate(Min('count'))
counter.count = mincount['count__min']
counter.save()
return counter
def _get_demande_candidates(demande, redo = False):
for matiere in demande.matieres.all():
candidates = PetitCoursAbility.objects.filter(matiere = matiere, niveau = demande.niveau)
candidates = candidates.filter(user__profile__is_cof = True,
user__profile__petits_cours_accept = True)
if demande.agrege_requis:
candidates = candidates.filter(agrege = True)
if redo:
attributions = PetitCoursAttribution.objects.filter(demande = demande,
matiere = matiere).all()
for attrib in attributions:
candidates = candidates.exclude(user = attrib.user)
candidates = candidates.order_by('?').select_related().all()
yield (matiere, candidates)
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@buro_required
def traitement(request, demande_id, redo = False):
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demande = get_object_or_404(PetitCoursDemande, id = demande_id)
if demande.niveau == "other":
return _traitement_other(request, demande, redo)
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if request.method == "POST":
return _traitement_post(request, demande)
proposals = {}
proposed_for = {}
unsatisfied = []
attribdata = {}
for matiere, candidates in _get_demande_candidates(demande, redo):
if candidates:
tuples = []
for candidate in candidates:
user = candidate.user
tuples.append((candidate, _get_attrib_counter(user, matiere)))
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tuples = sorted(tuples, key = lambda c: c[1].count)
candidates, _ = zip(*tuples)
candidates = candidates[0:min(3, len(candidates))]
attribdata[matiere.id] = []
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proposals[matiere] = []
for candidate in candidates:
user = candidate.user
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proposals[matiere].append(user)
attribdata[matiere.id].append(user.id)
if user not in proposed_for:
proposed_for[user] = [matiere]
else:
proposed_for[user].append(matiere)
else:
unsatisfied.append(matiere)
return _finalize_traitement(request, demande, proposals,
proposed_for, unsatisfied, attribdata, redo)
@buro_required
def retraitement(request, demande_id):
return traitement(request, demande_id, redo = True)
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def _finalize_traitement(request, demande, proposals, proposed_for,
unsatisfied, attribdata, redo = False, errors = None):
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proposals = proposals.items()
proposed_for = proposed_for.items()
attribdata = attribdata.items()
proposed_mails = _generate_eleve_email(demande, proposed_for)
mainmail = render_template("petits-cours-mail-demandeur.txt",
{"proposals": proposals,
"unsatisfied": unsatisfied,
"extra": "<textarea name=\"extra\" style=\"width:99%; height: 90px;\"></textarea>"})
return render(request, "traitement_demande_petit_cours.html",
{"demande": demande,
"unsatisfied": unsatisfied,
"proposals": proposals,
"proposed_for": proposed_for,
"proposed_mails": proposed_mails,
"mainmail": mainmail,
"attribdata": base64.b64encode(simplejson.dumps(attribdata)),
"redo": redo,
"errors": errors,
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})
def _generate_eleve_email(demande, proposed_for):
proposed_mails = []
for user, matieres in proposed_for:
msg = render_template("petits-cours-mail-eleve.txt", {"demande": demande, "matieres": matieres})
proposed_mails.append((user, msg))
return proposed_mails
def _traitement_other_preparing(request, demande):
redo = "redo" in request.POST
unsatisfied = []
proposals = {}
proposed_for = {}
attribdata = {}
errors = []
for matiere, candidates in _get_demande_candidates(demande, redo):
if candidates:
candidates = dict([(candidate.user.id, candidate.user)
for candidate in candidates])
attribdata[matiere.id] = []
proposals[matiere] = []
for choice_id in range(min(3, len(candidates))):
choice = int(request.POST["proposal-%d-%d" % (matiere.id, choice_id)])
if choice == -1:
continue
if choice not in candidates:
errors.append(u"Choix invalide pour la proposition %d en %s" % (choice_id + 1, matiere))
continue
user = candidates[choice]
if user in proposals[matiere]:
errors.append(u"La proposition %d en %s est un doublon" % (choice_id + 1, matiere))
continue
proposals[matiere].append(user)
attribdata[matiere.id].append(user.id)
if user not in proposed_for:
proposed_for[user] = [matiere]
else:
proposed_for[user].append(matiere)
if not proposals[matiere]:
errors.append(u"Aucune proposition pour %s" % (matiere,))
elif len(proposals[matiere]) < 3:
errors.append(u"Seulement %d proposition%s pour %s" % (len(proposals[matiere]), "s" if len(proposals[matiere]) > 1 else "", matiere))
else:
unsatisfied.append(matiere)
return _finalize_traitement(request, demande, proposals, proposed_for, unsatisfied, attribdata, errors = errors)
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def _traitement_other(request, demande, redo):
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if request.method == "POST":
if "preparing" in request.POST:
return _traitement_other_preparing(request, demande)
else:
return _traitement_post(request, demande)
proposals = {}
proposed_for = {}
unsatisfied = []
attribdata = {}
for matiere, candidates in _get_demande_candidates(demande, redo):
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if candidates:
tuples = []
for candidate in candidates:
user = candidate.user
tuples.append((candidate, _get_attrib_counter(user, matiere)))
tuples = sorted(tuples, key = lambda c: c[1].count)
candidates, _ = zip(*tuples)
attribdata[matiere.id] = []
proposals[matiere] = []
for candidate in candidates:
user = candidate.user
proposals[matiere].append(user)
attribdata[matiere.id].append(user.id)
if user not in proposed_for:
proposed_for[user] = [matiere]
else:
proposed_for[user].append(matiere)
else:
unsatisfied.append(matiere)
proposals = proposals.items()
proposed_for = proposed_for.items()
return render(request, "traitement_demande_petit_cours_autre_niveau.html",
{"demande": demande,
"unsatisfied": unsatisfied,
"proposals": proposals,
"proposed_for": proposed_for,
})
def _traitement_post(request, demande):
proposals = {}
proposed_for = {}
unsatisfied = []
extra = request.POST["extra"].strip()
redo = "redo" in request.POST
attribdata = request.POST["attribdata"]
attribdata = dict(simplejson.loads(base64.b64decode(attribdata)))
for matiere in demande.matieres.all():
if matiere.id not in attribdata:
unsatisfied.append(matiere)
else:
proposals[matiere] = []
for user_id in attribdata[matiere.id]:
user = User.objects.get(pk = user_id)
proposals[matiere].append(user)
if user not in proposed_for:
proposed_for[user] = [matiere]
else:
proposed_for[user].append(matiere)
proposals_list = proposals.items()
proposed_for = proposed_for.items()
proposed_mails = _generate_eleve_email(demande, proposed_for)
mainmail = render_template("petits-cours-mail-demandeur.txt",
{"proposals": proposals_list,
"unsatisfied": unsatisfied,
"extra": extra})
frommail = settings.PETITS_COURS_FROM
bccaddress = settings.PETITS_COURS_BCC
replyto = settings.PETITS_COURS_REPLYTO
mails_to_send = []
for (user, msg) in proposed_mails:
msg = EmailMessage("Petits cours ENS par le COF", msg,
frommail, [user.email],
[bccaddress], headers = {'Reply-To': replyto})
mails_to_send.append(msg)
mails_to_send.append(EmailMessage("Cours particuliers ENS", mainmail,
frommail, [demande.email],
[bccaddress], headers = {'Reply-To': replyto}))
connection = mail.get_connection(fail_silently = True)
connection.send_messages(mails_to_send)
lock_table(PetitCoursAttributionCounter, PetitCoursAttribution, User)
for matiere in proposals:
for rank, user in enumerate(proposals[matiere]):
counter = PetitCoursAttributionCounter.objects.get(user = user, matiere = matiere)
counter.count += 1
counter.save()
attrib = PetitCoursAttribution(user = user, matiere = matiere,
demande = demande, rank = rank + 1)
attrib.save()
unlock_tables()
demande.traitee = True
demande.traitee_par = request.user
demande.processed = datetime.now()
demande.save()
return render(request, "traitement_demande_petit_cours_success.html",
{"demande": demande,
"redo": redo,
})
class BaseMatieresFormSet(BaseInlineFormSet):
def clean(self):
super(BaseMatieresFormSet, self).clean()
if any(self.errors):
# Don't bother validating the formset unless each form is valid on its own
return
matieres = []
for i in range(0, self.total_form_count()):
form = self.forms[i]
if not form.cleaned_data:
continue
matiere = form.cleaned_data['matiere']
niveau = form.cleaned_data['niveau']
delete = form.cleaned_data['DELETE']
if not delete and (matiere, niveau) in matieres:
raise forms.ValidationError("Vous ne pouvez pas vous inscrire deux fois pour la même matiere avec le même niveau.")
matieres.append((matiere, niveau))
@login_required
def inscription(request):
profile, created = CofProfile.objects.get_or_create(user = request.user)
if not profile.is_cof:
return redirect("cof-denied")
MatieresFormSet = inlineformset_factory(User, PetitCoursAbility,
fields = ("matiere", "niveau", "agrege",),
formset = BaseMatieresFormSet)
success = False
if request.method == "POST":
formset = MatieresFormSet(request.POST, instance = request.user)
if formset.is_valid():
formset.save()
profile.petits_cours_accept = "receive_proposals" in request.POST
profile.petits_cours_remarques = request.POST["remarques"]
profile.save()
lock_table(PetitCoursAttributionCounter, PetitCoursAbility, User, PetitCoursSubject)
abilities = PetitCoursAbility.objects.filter(user = request.user).all()
for ability in abilities:
counter = _get_attrib_counter(ability.user, ability.matiere)
unlock_tables()
success = True
formset = MatieresFormSet(instance = request.user)
else:
formset = MatieresFormSet(instance = request.user)
return render(request, "inscription-petit-cours.html", {"formset": formset, "success": success, "receive_proposals": profile.petits_cours_accept, "remarques": profile.petits_cours_remarques})
class DemandeForm(ModelForm):
captcha = ReCaptchaField(attrs = {'theme': 'clean', 'lang': 'fr'})
def __init__(self, *args, **kwargs):
super(DemandeForm, self).__init__(*args, **kwargs)
self.fields['matieres'].help_text = ''
class Meta:
model = PetitCoursDemande
fields = ('name', 'email', 'phone', 'quand', 'freq', 'lieu', 'matieres', 'agrege_requis', 'niveau', 'remarques')
widgets = {'matieres': forms.CheckboxSelectMultiple}
@csrf_exempt
def demande(request):
success = False
if request.method == "POST":
form = DemandeForm(request.POST)
if form.is_valid():
form.save()
success = True
else:
form = DemandeForm()
return render(request, "demande-petit-cours.html", {"form": form, "success": success})
@csrf_exempt
def demande_raw(request):
success = False
if request.method == "POST":
form = DemandeForm(request.POST)
if form.is_valid():
form.save()
success = True
else:
form = DemandeForm()
return render(request, "demande-petit-cours-raw.html", {"form": form, "success": success})