344 lines
11 KiB
Python
344 lines
11 KiB
Python
import logging
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import re
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import bs4
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import requests
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from django.contrib import messages
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from django.http import HttpResponseRedirect, JsonResponse
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from django.shortcuts import redirect
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from django.urls import reverse
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from django.views.decorators.cache import cache_page
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from django.views.generic import CreateView, UpdateView, DeleteView, TemplateView
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from manuels.forms import AddBookForm, AddSuppliesForm, EditBookForm, EditSuppliesForm
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from manuels.models import Teacher, Book, SuppliesRequirement
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logger = logging.getLogger(__name__)
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class HomePageView(CreateView):
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model = Teacher
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fields = ['first_name', 'last_name', 'phone_number', 'email']
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template_name = 'manuels/home_page.html'
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def get(self, request, *args, **kwargs):
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teacher_pk = request.session.get('teacher_pk')
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if teacher_pk:
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return redirect('list_books', pk=teacher_pk)
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return super().get(request, *args, **kwargs)
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def form_valid(self, form):
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response = super().form_valid(form)
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self.object.send_link(self.request)
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return response
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class BaseTeacherView:
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teacher = None
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teacher_field = 'pk'
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def dispatch(self, request, *args, **kwargs):
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self.teacher = Teacher.objects.filter(pk=self.kwargs[self.teacher_field]).first()
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if not self.teacher:
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messages.warning(request, "Impossible de trouver le coordonnateur demandé. Si vous pensez que ceci est "
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"une erreur, merci de vous adresser à votre documentaliste.")
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return redirect('clear_teacher')
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request.session['teacher_pk'] = str(self.teacher.pk)
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return super().dispatch(request, *args, **kwargs)
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def get_context_data(self, **kwargs):
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context = super().get_context_data()
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context['teacher'] = self.teacher
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return context
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class ListBooksView(BaseTeacherView, TemplateView):
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template_name = 'manuels/list_books_supplies.html'
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class ItemView(BaseTeacherView):
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add_another = False
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item_text = None
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item_text_plural = None
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success_target = None
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message_template = None
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verb = None
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button_class = 'primary'
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button_icon = 'fas fa-check-circle'
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def dispatch(self, request, *args, **kwargs):
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response = super().dispatch(request, *args, **kwargs)
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if self.teacher and self.teacher.has_confirmed_list:
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messages.error(request, "Vous avez déjà confirmé vos listes. Il n'est plus possible de les modifier.")
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return redirect('list_books', pk=self.teacher.pk)
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return response
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def get_context_data(self, **kwargs):
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context = super().get_context_data(**kwargs)
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context['item'] = self.item_text
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context['item_plural'] = self.item_text_plural
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context['message_template'] = self.message_template
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context['verb'] = self.verb
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context['button_class'] = self.button_class
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context['button_icon'] = self.button_icon
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return context
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def get_initial(self):
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return {
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'teacher': self.teacher
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}
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def get_form(self, form_class=None):
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form = super().get_form(form_class)
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form.fields['teacher'].queryset = Teacher.objects.filter(pk=self.teacher.pk)
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return form
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class AddItemView(ItemView, CreateView):
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verb = 'Ajouter'
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button_icon = 'fas fa-plus-circle'
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def get_success_url(self):
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if self.add_another:
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return reverse(self.success_target, args=[str(self.teacher.pk)])
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else:
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return reverse('list_books', args=[str(self.teacher.pk)])
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def form_valid(self, form):
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self.add_another = form.cleaned_data['add_another']
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return HttpResponseRedirect(self.get_success_url())
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class BookView:
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model = Book
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success_target = 'add_book'
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item_text = 'un livre'
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item_text_plural = 'livres'
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class AddBookView(BookView, AddItemView):
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form_class = AddBookForm
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template_name = 'manuels/add_book.html'
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def form_valid(self, form: AddBookForm):
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for level in form.cleaned_data['levels']:
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book = Book.objects.create(
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teacher=form.cleaned_data['teacher'],
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level=level,
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field=form.cleaned_data['field'],
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title=form.cleaned_data['title'],
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authors=form.cleaned_data['authors'],
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editor=form.cleaned_data['editor'],
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other_editor=form.cleaned_data['other_editor'],
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publication_year=form.cleaned_data['publication_year'],
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isbn=form.cleaned_data['isbn'],
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price=form.cleaned_data['price'],
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previously_acquired=form.cleaned_data['previously_acquired'],
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comments=form.cleaned_data['comments'],
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consumable=form.cleaned_data['consumable'],
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)
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messages.success(self.request, f'"{book}" a été ajouté.')
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return super().form_valid(form)
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class SuppliesView:
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model = SuppliesRequirement
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success_target = 'add_supplies'
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item_text = 'des fournitures'
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item_text_plural = 'fournitures'
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class AddSuppliesView(SuppliesView, AddItemView):
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form_class = AddSuppliesForm
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message_template = 'manuels/supplies_message.html'
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template_name = 'manuels/add_supplies.html'
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def form_valid(self, form: AddBookForm):
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for level in form.cleaned_data['levels']:
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supplies = SuppliesRequirement.objects.create(
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teacher=form.cleaned_data['teacher'],
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level=level,
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field=form.cleaned_data['field'],
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supplies=form.cleaned_data['supplies'],
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)
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messages.success(self.request, f'"{supplies}" a été ajouté.')
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return super().form_valid(form)
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class EditItemView(ItemView, UpdateView):
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teacher_field = 'teacher_pk'
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item_text = None
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item_text_plural = None
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message_template = None
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verb = 'Modifier'
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def get_queryset(self):
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return self.model.objects.filter(teacher=self.teacher)
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def get_success_url(self):
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messages.success(self.request, f'"{self.object}" a été modifié.')
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return reverse('list_books', args=[str(self.teacher.pk)])
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class EditBookView(BookView, EditItemView):
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form_class = EditBookForm
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template_name = 'manuels/add_book.html'
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class EditSuppliesView(SuppliesView, EditItemView):
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form_class = EditSuppliesForm
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template_name = 'manuels/add_supplies.html'
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class DeleteItemView(ItemView, DeleteView):
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teacher_field = 'teacher_pk'
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item_text = None
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item_text_plural = None
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message_template = 'manuels/confirm_delete.html'
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verb = 'Supprimer'
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button_class = 'danger'
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button_icon = 'fas fa-trash'
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template_name = 'manuels/add_supplies.html'
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def get_queryset(self):
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return self.model.objects.filter(teacher=self.teacher)
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def get_success_url(self):
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messages.success(self.request, f'"{self.object}" a été supprimé.')
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return reverse('list_books', args=[str(self.teacher.pk)])
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class DeleteBookView(BookView, DeleteItemView):
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pass
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class DeleteSuppliesView(SuppliesView, DeleteItemView):
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pass
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def clear_teacher_view(request):
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if 'teacher_pk' in request.session:
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del request.session['teacher_pk']
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return redirect('home_page')
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class ConfirmTeacherView(BaseTeacherView, UpdateView):
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model = Teacher
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fields = []
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template_name = 'manuels/confirm_teacher.html'
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def form_valid(self, form):
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response = super().form_valid(form)
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self.object.has_confirmed_list = True
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self.object.save()
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self.object.send_confirmation(request=self.request)
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messages.success(self.request, "Vos listes ont été validées. Votre documentaliste a été notifiée par email.")
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return response
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def validate_isbn(isbn):
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_sum = 0
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if len(isbn) == 10:
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for i, digit in enumerate(isbn):
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if digit == 'X':
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digit = 10
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else:
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digit = int(digit)
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_sum += digit * (i + 1)
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return _sum % 11 == 0
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elif len(isbn) == 13:
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for i, digit in enumerate(isbn):
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weight = 3 if i % 2 == 1 else 1
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digit = int(digit)
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_sum += digit * weight
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return _sum % 10 == 0
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return False
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# We are able to cache the response because it's very unlikely that the details of a book will change through time
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@cache_page(2 * 60 * 60)
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def isbn_api(request, isbn):
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isbn = isbn.strip().replace('-', '')
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if not validate_isbn(isbn):
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return JsonResponse({
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'error': "L'ISBN saisi n'est pas valide."
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})
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if len(isbn) == 10:
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return JsonResponse({
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'error': "La recherche sur Decitre ne fonctionne qu'avec un ISBN 13 (ou EAN)."
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})
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try:
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res = requests.get(f'https://www.decitre.fr/livres/{isbn}.html', timeout=10)
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except requests.exceptions.Timeout as exc:
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return JsonResponse({
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'error': "Decitre n'a pas répondu dans les temps. Message : {}".format(str(exc))
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})
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try:
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res.raise_for_status()
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except Exception as exc:
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message = ("Erreur lors de la recherche. Il se peut que le livre n'existe pas dans la base de connaissances "
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"de Decitre ou que vous ayez mal saisi l'ISBN. Vous pouvez toujours saisir "
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"les informations du livre à la main. Message : {}").format(str(exc))
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return JsonResponse({
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'error': message
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})
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decitre_soup = bs4.BeautifulSoup(res.text, "html.parser")
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title = decitre_soup.select('h1.product-title')
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if title:
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title = title[0]
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if title.span:
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title.span.extract()
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title = title.get_text(strip=True)
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authors = decitre_soup.select('.authors')
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if authors:
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authors = authors[0]
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authors = authors.get_text(strip=True)
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price = decitre_soup.select('div.price span.final-price')
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if price:
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price = price[0]
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price = price.get_text().replace('€', '').replace(',', '.').strip()
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year = None
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editor = None
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extra_info = decitre_soup.select('.informations-container')
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logger.debug('raw extra_info')
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logger.debug(extra_info)
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if not extra_info:
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logger.debug('#fiche-technique')
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extra_info = decitre_soup.select('#fiche-technique')
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logger.debug('raw extra_info fiche technique')
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logger.debug(extra_info)
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if extra_info:
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extra_info = extra_info[0].get_text(strip=True)
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logger.debug('extra_info')
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logger.debug(extra_info)
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matches = re.search(r'Date de parution(?: :)?\d{2}/\d{2}/(?P<year>\d{4})Editeur(?: :)?(?P<editor>.+?)(?:ISBN|Collection)', extra_info)
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if matches:
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groups = matches.groupdict()
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year = groups.get('year')
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editor = groups.get('editor').strip()
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return JsonResponse({
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'title': title,
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'authors': authors,
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'isbn': isbn,
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'price': float(price) if price else None,
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'year': year,
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'editor': editor,
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})
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