manuels-scolaires/manuels/models.py

423 lines
14 KiB
Python
Raw Normal View History

import logging
2018-05-22 10:24:21 +02:00
import os
import re
2018-05-21 23:23:43 +02:00
import uuid as uuid
2018-05-22 10:24:21 +02:00
import bs4
import requests
2018-05-22 10:24:21 +02:00
from django.conf import settings
from django.contrib.postgres.fields import CIEmailField
from django.core.exceptions import ValidationError
2018-05-22 10:24:21 +02:00
from django.core.mail import EmailMultiAlternatives
2018-05-21 19:28:36 +02:00
from django.db import models
from django.db.models import Sum
2018-05-22 10:24:21 +02:00
from django.template.loader import render_to_string
from django.urls import reverse
2018-05-21 19:28:36 +02:00
from manuels.utils import validate_isbn
logger = logging.getLogger(__name__)
class ISBNError(Exception):
def __init__(self, data):
self.data = data
2018-05-21 19:28:36 +02:00
class BaseModel(models.Model):
class Meta:
abstract = True
created_at = models.DateTimeField('créé le', auto_now_add=True)
updated_at = models.DateTimeField('mis à jour le', auto_now=True)
def phone_validator(value):
regex = re.compile(r'^\d{10}$')
if not regex.match(value):
raise ValidationError(
"%(value)s n'est pas un numéro de téléphone valide. Format attendu : 10 chiffres.",
params={'value': value}
)
class Teacher(BaseModel):
class Meta:
verbose_name = 'coordonnateur'
verbose_name_plural = 'coordonnateurs'
ordering = ['first_name']
2018-05-21 23:23:43 +02:00
uuid = models.UUIDField(primary_key=True, default=uuid.uuid4, editable=False)
first_name = models.CharField('prénom', max_length=100)
last_name = models.CharField('nom', max_length=100)
phone_number = models.CharField(
'numéro de téléphone',
help_text="En cas d'urgence, 10 chiffres.",
max_length=10,
validators=[phone_validator]
)
email = CIEmailField(
2018-05-22 00:55:14 +02:00
'adresse email',
help_text='Utilisée pour vous transmettre votre lien personnel',
unique=True
)
has_confirmed_list = models.BooleanField(
'a confirmé les listes',
default=False,
blank=True
)
def get_absolute_url(self):
from django.urls import reverse
return reverse('list_books', kwargs={'pk': str(self.pk)})
@property
def full_name(self):
return f'{self.first_name} {self.last_name}'
2018-05-21 23:12:35 +02:00
def __str__(self):
return self.full_name
2018-05-22 10:24:21 +02:00
def send_link(self, request):
dest = self.email
link = request.build_absolute_uri(reverse('list_books', args=[str(self.pk)]))
msg = EmailMultiAlternatives(
subject='Gestion des manuels scolaires',
body=f'Bonjour {self.first_name},\n'
f'Voici votre lien pour la gestion des manuels scolaires : {link}',
from_email=settings.SERVER_EMAIL,
to=[dest],
)
reply_to = [os.getenv('REPLY_TO')]
if reply_to:
msg.reply_to = reply_to
msg.attach_alternative(
render_to_string('manuels/emails_link.html', {'link': link, 'teacher': self}), "text/html"
)
msg.send()
def send_confirmation(self, request):
dest = settings.LIBRARIAN_EMAILS
link = request.build_absolute_uri(reverse('home_page'))
msg = EmailMultiAlternatives(
subject="Gestion des manuels scolaires - Confirmation d'un coordonnateur",
body=f'Bonjour,\n'
f'{self.first_name} a confirmé ses listes sur {link}',
from_email=settings.SERVER_EMAIL,
to=dest,
)
reply_to = [os.getenv('REPLY_TO')]
if reply_to:
msg.reply_to = reply_to
msg.attach_alternative(
render_to_string('manuels/emails_confirmation.html', {'link': link, 'teacher': self}), "text/html"
2018-05-22 10:24:21 +02:00
)
msg.send()
class Level(BaseModel):
class Meta:
verbose_name = 'classe'
2018-05-21 23:12:35 +02:00
verbose_name_plural = 'classes'
2019-04-06 19:25:34 +02:00
ordering = ['order', 'name']
2018-05-24 00:16:59 +02:00
name = models.CharField('nom', max_length=50)
2019-04-06 19:25:34 +02:00
order = models.IntegerField('ordre', default=0)
2018-05-21 23:12:35 +02:00
def __str__(self):
return self.name
2020-06-01 13:44:54 +02:00
@property
def non_acquired_consumables(self):
if hasattr(self, "prefetched_books"):
return filter(lambda book: book.consumable and not book.previously_acquired, self.prefetched_books)
return self.book_set.filter(consumable=True, previously_acquired=False)
@property
def non_acquired_consumable_count(self):
2020-06-01 13:44:54 +02:00
if hasattr(self, "prefetched_books"):
return len(list(self.non_acquired_consumables))
return self.non_acquired_consumables.count()
@property
2019-06-28 15:24:03 +02:00
def non_acquired_consumable_price(self):
2020-06-01 13:44:54 +02:00
if hasattr(self, "prefetched_books"):
return sum(map(lambda book: book.price, self.non_acquired_consumables))
return self.non_acquired_consumables.aggregate(Sum('price')).get(
'price__sum', 0)
@property
def non_acquired_books(self):
if hasattr(self, "prefetched_books"):
return filter(lambda book: not book.consumable and not book.previously_acquired, self.prefetched_books)
return self.book_set.filter(consumable=False, previously_acquired=False)
@property
def non_acquired_book_count(self):
2020-06-01 13:44:54 +02:00
if hasattr(self, "prefetched_books"):
return len(list(self.non_acquired_books))
return self.non_acquired_books.count()
@property
2019-06-28 15:24:03 +02:00
def non_acquired_book_price(self):
2020-06-01 13:44:54 +02:00
if hasattr(self, "prefetched_books"):
return sum(map(lambda book: book.price, self.non_acquired_books))
return self.non_acquired_books.aggregate(Sum('price')).get(
'price__sum', 0)
@property
def non_acquired_items(self):
if hasattr(self, "prefetched_books"):
return filter(lambda book: not book.previously_acquired, self.prefetched_books)
return self.book_set.filter(previously_acquired=False)
@property
2019-06-28 15:24:03 +02:00
def non_acquired_total_price(self):
2020-06-01 13:44:54 +02:00
if hasattr(self, "prefetched_books"):
return sum(map(lambda book: book.price, self.non_acquired_items))
return self.non_acquired_items.aggregate(Sum('price')).get(
'price__sum', 0)
class Editor(BaseModel):
2018-05-22 01:35:05 +02:00
class Meta:
verbose_name = 'éditeur'
verbose_name_plural = 'éditeurs'
ordering = ['name']
2018-05-24 00:16:59 +02:00
name = models.CharField('nom', max_length=100)
2018-05-22 01:35:05 +02:00
def __str__(self):
return self.name
def isbn_validator(value):
regex = re.compile(r'(\d-?){10,13}X?')
if not regex.match(value):
raise ValidationError("%(value)s n'est pas un ISBN valide.", params={'value': value})
2018-06-04 18:28:40 +02:00
def positive_float_validator(value):
try:
value = float(value)
except ValueError:
raise ValidationError("%(value)s doit être un nombre décimal")
if value < 0:
raise ValidationError("%(value)s doit être un nombre positif")
class Book(BaseModel):
class Meta:
verbose_name = 'livre'
verbose_name_plural = 'livres'
2018-05-21 23:12:35 +02:00
teacher = models.ForeignKey(verbose_name='coordonnateur', to=Teacher, on_delete=models.PROTECT, null=True)
2018-05-22 10:52:03 +02:00
level = models.ForeignKey(verbose_name='classe', to=Level, on_delete=models.PROTECT, null=True)
2018-05-30 18:01:26 +02:00
field = models.CharField('discipline', max_length=200)
title = models.TextField('titre')
authors = models.TextField('auteurs')
2018-05-22 10:52:03 +02:00
editor = models.ForeignKey(verbose_name='éditeur', to=Editor, on_delete=models.PROTECT, null=True)
other_editor = models.CharField(verbose_name='préciser', max_length=100, blank=True)
publication_year = models.PositiveIntegerField('année de publication')
2018-05-24 00:15:35 +02:00
isbn = models.CharField(
2021-05-10 08:57:05 +02:00
'ISBN/EAN du manuel élève (hors specimen)',
2018-05-24 00:15:35 +02:00
max_length=20,
help_text="Format attendu : 10 ou 13 chiffres, éventuellement séparés par des tirets et éventuellement "
2019-04-06 19:26:16 +02:00
"suivis de la lettre <code>X</code>. La recherche sur Decitre ne fonctionnera qu'avec un code ISBN à "
"13 chiffres (ou EAN)",
2018-05-24 00:15:35 +02:00
validators=[isbn_validator]
)
2018-06-04 18:28:40 +02:00
price = models.FloatField('prix', validators=[positive_float_validator])
2018-05-21 23:12:35 +02:00
YES_NO_CHOICE = (
(None, '------------'),
2018-05-21 23:12:35 +02:00
(False, 'Non'),
(True, 'Oui'),
)
previously_acquired = models.BooleanField(
"manuel acquis précédemment par l'élève",
choices=YES_NO_CHOICE,
blank=False,
default=None,
2018-05-21 23:12:35 +02:00
)
2018-05-30 18:06:27 +02:00
done = models.BooleanField(
'Traité',
blank=True,
default=False
)
2018-05-30 18:23:19 +02:00
comments = models.TextField(
'commentaires',
2018-05-31 08:15:20 +02:00
blank=True,
help_text="Ce message sera visible par la documentaliste."
2018-05-30 18:23:19 +02:00
)
2019-04-06 19:25:04 +02:00
consumable = models.BooleanField(
'consommable',
help_text="Exemple : un cahier d'exercices est un consommable",
choices=YES_NO_CHOICE,
blank=False,
default=None,
)
2018-05-21 23:12:35 +02:00
@property
def previously_acquired_text(self):
2019-04-06 19:25:04 +02:00
if self.previously_acquired:
return 'Oui'
else:
return 'Non'
@property
def consumable_text(self):
2019-06-25 10:43:51 +02:00
if self.consumable:
return 'Oui'
2018-05-21 23:12:35 +02:00
else:
return 'Non'
2018-05-21 23:12:35 +02:00
def __str__(self):
return f'{self.title} ({self.authors}) - {self.isbn}'
def get_absolute_url(self):
from django.urls import reverse
return reverse('edit_book', kwargs={'teacher_pk': str(self.teacher.pk), 'pk': str(self.pk)})
def update_from_decitre(self):
decitre_data = self.fetch_from_decitre(self.isbn)
self.title = decitre_data.get('title')
self.authors = decitre_data.get('authors')
self.price = decitre_data.get('price')
self.publication_year = decitre_data.get('year')
editor = decitre_data.get('editor')
potential_editor = (
Editor.objects.filter(name__iexact=editor).first()
or Editor.objects.filter(name__icontains=editor).first()
)
if potential_editor:
self.other_editor = ""
else:
potential_editor = Editor.objects.get(name__istartswith="autre")
self.other_editor = editor
self.editor = potential_editor
self.save()
2020-06-01 13:53:46 +02:00
@property
def decitre_url(self):
isbn = self.isbn.strip().replace('-', '')
if not validate_isbn(isbn) or len(isbn) == 10:
return ""
return f'https://www.decitre.fr/livres/{isbn}.html'
@staticmethod
def fetch_from_decitre(isbn: str):
isbn = isbn.strip().replace('-', '')
if not validate_isbn(isbn):
raise ISBNError({
'error': "L'ISBN saisi n'est pas valide."
})
if len(isbn) == 10:
raise ISBNError({
'error': "La recherche sur Decitre ne fonctionne qu'avec un ISBN 13 (ou EAN)."
})
try:
res = requests.get(f'https://www.decitre.fr/livres/{isbn}.html', timeout=10)
except requests.exceptions.Timeout as exc:
raise ISBNError({
'error': "Decitre n'a pas répondu dans les temps. Message : {}".format(str(exc))
})
try:
res.raise_for_status()
except Exception as exc:
message = (
"Erreur lors de la recherche. Il se peut que le livre n'existe pas dans la base de connaissances "
"de Decitre ou que vous ayez mal saisi l'ISBN. Vous pouvez toujours saisir "
"les informations du livre à la main. Message : {}").format(str(exc))
raise ISBNError({
'error': message
})
decitre_soup = bs4.BeautifulSoup(res.text, "html.parser")
title = decitre_soup.select('h1.product-title')
if title:
title = title[0]
if title.span:
title.span.extract()
title = title.get_text(strip=True)
authors = decitre_soup.select('.authors')
if authors:
authors = authors[0]
authors = authors.get_text(strip=True)
price = decitre_soup.select('div.price span.final-price')
if price:
price = price[0]
price = price.get_text().replace('', '').replace(',', '.').strip()
year = None
editor = None
extra_info = decitre_soup.select('.informations-container')
logger.debug('raw extra_info')
logger.debug(extra_info)
if not extra_info:
logger.debug('#fiche-technique')
extra_info = decitre_soup.select('#fiche-technique')
logger.debug('raw extra_info fiche technique')
logger.debug(extra_info)
if extra_info:
extra_info = extra_info[0].get_text(strip=True)
logger.debug('extra_info')
logger.debug(extra_info)
matches = re.search(
r'Date de parution(?: :)?\d{2}/\d{2}/(?P<year>\d{4})Editeur(?: :)?(?P<editor>.+?)(?:ISBN|Collection)',
extra_info)
if matches:
groups = matches.groupdict()
year = groups.get('year')
editor = groups.get('editor').strip()
return {
'title': title,
'authors': authors,
'isbn': isbn,
'price': float(price) if price else None,
'year': year,
'editor': editor,
}
class SuppliesRequirement(BaseModel):
class Meta:
verbose_name = 'demande de fournitures'
verbose_name_plural = 'demandes de fournitures'
teacher = models.ForeignKey(verbose_name='coordonnateur', to=Teacher, on_delete=models.PROTECT, null=True)
2018-05-22 10:52:03 +02:00
level = models.ForeignKey(verbose_name='classe', to=Level, on_delete=models.PROTECT, null=True)
field = models.CharField('discipline', max_length=50)
supplies = models.TextField('fournitures')
2018-05-30 18:06:27 +02:00
done = models.BooleanField(
'Traité',
blank=True,
default=False
)
def __str__(self):
return f'{self.supplies} pour {self.level} ({self.teacher})'
class CommonSupply(BaseModel):
class Meta:
verbose_name = 'fourniture commune'
verbose_name_plural = 'fournitures communes'
ordering = ('order', 'name',)
name = models.CharField('nom', max_length=200)
order = models.IntegerField('ordre')
def __str__(self):
return self.name