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# Copyright (C) 2017 Alban Gruin
#
# celcatsanitizer is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# celcatsanitizer is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License along
# with celcatsanitizer; if not, write to the Free Software Foundation, Inc.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
from django.db import models
from django.db.models import Count, Manager, Q
from django.db.models.functions import ExtractWeek, ExtractYear
from django.utils.text import slugify
from .utils import parse_group
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")
def __str__(self):
return "{0}, semaine {1} de {2}".format(self.timetable.name, self.week, self.year)
class Meta:
unique_together = ("timetable", "week", "year", "date",)
verbose_name = "mise à jour"
verbose_name_plural = "mises à jour"
class GroupManager(Manager):
def get_relevant_groups(self):
return self.get_queryset().annotate(children_count=Count("children")).filter(children_count=0)
class Group(models.Model):
objects = GroupManager()
name = models.CharField(max_length=255, verbose_name="nom")
celcat_name = models.CharField(max_length=255, verbose_name="nom dans Celcat")
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", null=True)
td = models.IntegerField(verbose_name="groupe de TD", null=True)
tp = models.IntegerField(verbose_name="groupe de TP", null=True)
parent = models.ForeignKey("self", verbose_name="groupe parent", null=True, default=None, related_name="children")
slug = models.SlugField(max_length=64, default="")
def corresponds_to(self, timetable_id, mention, subgroup, td, tp):
return self.timetable.id == timetable_id and self.mention.startswith(mention) and (self.subgroup == subgroup or self.subgroup is None) and (self.td == td or self.td is None or td is None) and (self.tp == tp or self.tp is None or tp is None)
@property
def group_info(self):
return self.timetable.id, self.mention, self.subgroup, self.td, self.tp
def __str__(self):
return self.name
def save(self, *args, **kwargs):
if self.name == "":
self.name = self.celcat_name
self.slug = slugify(self.name)
self.mention, self.subgroup, self.td, self.tp = parse_group(self.name)
super(Group, self).save()
class Meta:
index_together = ("mention", "subgroup", "td", "tp",)
unique_together = (("name", "timetable",), ("celcat_name", "timetable",), ("slug", "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 __str__(self):
return "{0} - {1}".format(self.email, self.group)
def save(self, *args, **kwargs):
if self.token == "":
self.token = hashlib.sha1(os.urandom(128)).hexdigest()
super(Subscription, self).save(*args, **kwargs)
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(Manager):
def filter(self, *args, **filters):
if "type" in filters and filters["type"] is not None:
filters["type"] = filters["type"].replace("COURS", "cours")
filters["type"] = filters["type"].replace("REUNION", "réunion")
if "name" in filters and filters["name"] is not None:
filters["name"] = filters["name"].split("(")[0].strip()
return super(CourseManager, self).filter(*args, **filters)
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), Q(groups__subgroup__isnull=True) | Q(groups__subgroup=group.subgroup), groups__mention=group.mention, timetable=group.timetable, **filters).order_by("begin")
def get_weeks(self, **criteria):
return self.get_queryset().filter(**criteria).order_by("groups__name", "year", "week").annotate(_=Count(("groups", "year", "week", "begin")), year=ExtractYear("begin"), week=ExtractWeek("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")
active = models.BooleanField(verbose_name="actif", default=True)
checked = models.BooleanField(default=True, db_index=True)
celcat_id = models.IntegerField(verbose_name="ID dans Celcat")
def __str__(self):
return self.name
def save(self, *args, **kwargs):
if self.type is not None:
self.type = self.type.replace("COURS", "cours")
self.type = self.type.replace("REUNION", "réunion")
if self.name is not None:
self.name = self.name.split("(")[0].strip()
super(Course, self).save(*args, **kwargs)
class Meta:
verbose_name = "cours"
verbose_name_plural = "cours"
class CourseDelta(models.Model):
ADDED = 0
DELETED = 1
OPERATION_CHOICE = (
(ADDED, "Ajouté"),
(DELETED, "Supprimé"),)
course = models.ForeignKey(Course, verbose_name="cours")
update = models.ForeignKey(LastUpdate, verbose_name="mise à jour")
operation = models.IntegerField(choices=OPERATION_CHOICE, default=ADDED, verbose_name="type de modification")
class Meta:
unique_together = ("course", "update",)
verbose_name = "modification de cours"
verbose_name_plural = "modifications de cours"
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