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from django.db import models
from django.db.models import Q
from django.utils.text import slugify
import hashlib
import os
class Timetable(models.Model):
name = models.CharField(max_length=64, unique=True, verbose_name="nom")
url = models.URLField(max_length=255, unique=True, verbose_name="URL")
slug = models.SlugField(max_length=64, unique=True, default="")
def __str__(self):
return self.name
class Meta:
verbose_name = "emploi du temps"
verbose_name_plural = "emplois du temps"
class LastUpdate(models.Model):
timetable = models.ForeignKey(Timetable, on_delete=models.CASCADE, verbose_name="emploi du temps")
week = models.IntegerField(verbose_name="semaine")
year = models.IntegerField(verbose_name="année")
date = models.DateTimeField(verbose_name="date de mise à jour")
class Meta:
unique_together = ("timetable", "week", "year",)
verbose_name = "dernière mise à jour"
verbose_name_plural = "dernières mises à jour"
class Group(models.Model):
name = models.CharField(max_length=255, verbose_name="nom")
timetable = models.ForeignKey(Timetable, on_delete=models.CASCADE, verbose_name="emploi du temps")
mention = models.CharField(max_length=32)
subgroup = models.CharField(max_length=1, verbose_name="sous-groupe")
td = models.IntegerField(verbose_name="groupe de TD", null=True)
tp = models.IntegerField(verbose_name="groupe de TP", null=True)
slug = models.SlugField(max_length=64, unique=True, default="")
def __str__(self):
return self.name
def save(self):
try:
parts = self.name.split("-")[-2:]
group = parts[1].strip()[2:]
self.mention = parts[0].strip()
self.subgroup = group[0]
if len(group) > 1:
self.td = int(group[1])
if len(group) > 2:
self.tp = int(group[2])
except:
print("Malformed name: {0}. Ignoring".format(self.name))
finally:
self.slug = slugify(self.name)
super(Group, self).save()
class Meta:
index_together = ("mention", "subgroup", "td", "tp",)
unique_together = ("name", "timetable",)
verbose_name = "groupe"
verbose_name_plural = "groupes"
class Subscription(models.Model):
email = models.EmailField(verbose_name="adresse")
group = models.ForeignKey(Group, on_delete=models.CASCADE, verbose_name="groupe")
active = models.BooleanField(verbose_name="activé", default=False, db_index=True)
token = models.CharField(max_length=64, unique=True, default="")
def save(self):
if self.token == "":
self.token = hashlib.sha1(os.urandom(128)).hexdigest()
super(Subscription, self).save()
class Meta:
unique_together = ("email", "group",)
verbose_name = "abonnement"
verbose_name_plural = "abonnements"
class Room(models.Model):
name = models.CharField(max_length=255, unique=True, verbose_name="nom")
def __str__(self):
return self.name
class Meta:
verbose_name = "salle"
verbose_name_plural = "salles"
class CourseManager(models.Manager):
def get_courses_for_group(self, group, **filters):
return self.get_queryset().filter(Q(groups__td__isnull=True) | Q(groups__td=group.td), Q(groups__tp__isnull=True) | Q(groups__tp=group.tp), groups__mention=group.mention, groups__subgroup=group.subgroup, **filters).order_by("begin")
class Course(models.Model):
objects = CourseManager()
name = models.CharField(max_length=255, verbose_name="nom", null=True)
type_ = models.CharField(name="type", max_length=255, verbose_name="type de cours", null=True)
timetable = models.ForeignKey(Timetable, on_delete=models.CASCADE, verbose_name="emploi du temps")
notes = models.TextField(verbose_name="remarques", blank=True, null=True)
groups = models.ManyToManyField(Group, verbose_name="groupes")
rooms = models.ManyToManyField(Room, verbose_name="salles")
begin = models.DateTimeField(verbose_name="début du cours", db_index=True)
end = models.DateTimeField(verbose_name="fin du cours")
def __str__(self):
return self.name
class Meta:
verbose_name = "cours"
verbose_name_plural = "cours"
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