ScoDocMM/app/models/groups.py

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# -*- coding: UTF-8 -*
"""Groups & partitions
"""
from typing import Any
from app import db
from app.models import SHORT_STR_LEN
from app.models import GROUPNAME_STR_LEN
class Partition(db.Model):
"""Partition: découpage d'une promotion en groupes"""
__table_args__ = (db.UniqueConstraint("formsemestre_id", "partition_name"),)
id = db.Column(db.Integer, primary_key=True)
partition_id = db.synonym("id")
formsemestre_id = db.Column(
db.Integer,
db.ForeignKey("notes_formsemestre.id"),
index=True,
)
# "TD", "TP", ... (NULL for 'all')
partition_name = db.Column(db.String(SHORT_STR_LEN))
# Numero = ordre de presentation)
numero = db.Column(db.Integer)
# Calculer le rang ?
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bul_show_rank = db.Column(
db.Boolean(), nullable=False, default=False, server_default="false"
)
# Montrer quand on indique les groupes de l'étudiant ?
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show_in_lists = db.Column(
db.Boolean(), nullable=False, default=True, server_default="true"
)
# Editable ? (faux pour les groupes de parcours)
groups_editable = db.Column(
db.Boolean(), nullable=False, default=True, server_default="true"
)
groups = db.relationship(
"GroupDescr",
backref=db.backref("partition", lazy=True),
lazy="dynamic",
)
def __init__(self, **kwargs):
super(Partition, self).__init__(**kwargs)
if self.numero is None:
# génère numero à la création
last_partition = Partition.query.order_by(Partition.numero.desc()).first()
if last_partition:
self.numero = last_partition.numero + 1
else:
self.numero = 1
def __repr__(self):
return f"""<{self.__class__.__name__} {self.id} "{self.partition_name or '(default)'}">"""
def to_dict(self, with_groups=False) -> dict:
"""as a dict, with or without groups"""
d = dict(self.__dict__)
d.pop("_sa_instance_state", None)
if with_groups:
d["groups"] = [group.to_dict(with_partition=False) for group in self.groups]
return d
class GroupDescr(db.Model):
"""Description d'un groupe d'une partition"""
__tablename__ = "group_descr"
__table_args__ = (db.UniqueConstraint("partition_id", "group_name"),)
id = db.Column(db.Integer, primary_key=True)
group_id = db.synonym("id")
partition_id = db.Column(db.Integer, db.ForeignKey("partition.id"))
# "A", "C2", ... (NULL for 'all'):
group_name = db.Column(db.String(GROUPNAME_STR_LEN))
etuds = db.relationship(
"Identite",
secondary="group_membership",
lazy="dynamic",
)
def __repr__(self):
return (
f"""<{self.__class__.__name__} {self.id} "{self.group_name or '(tous)'}">"""
)
def get_nom_with_part(self) -> str:
"Nom avec partition: 'TD A'"
return f"{self.partition.partition_name or ''} {self.group_name or '-'}"
def to_dict(self, with_partition=True) -> dict:
"""as a dict, with or without partition"""
d = {
"id": self.id,
"partition_id": self.partition_id,
"name": self.group_name,
}
if with_partition:
d["partition"] = self.partition.to_dict(with_groups=False)
return d
group_membership = db.Table(
"group_membership",
db.Column("etudid", db.Integer, db.ForeignKey("identite.id", ondelete="CASCADE")),
db.Column("group_id", db.Integer, db.ForeignKey("group_descr.id")),
db.UniqueConstraint("etudid", "group_id"),
)
# class GroupMembership(db.Model):
# """Association groupe / étudiant"""
# __tablename__ = "group_membership"
# __table_args__ = (db.UniqueConstraint("etudid", "group_id"),)
# id = db.Column(db.Integer, primary_key=True)
# etudid = db.Column(db.Integer, db.ForeignKey("identite.id", ondelete="CASCADE"))
# group_id = db.Column(db.Integer, db.ForeignKey("group_descr.id"))