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)
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bul_show_rank = db.Column(
db.Boolean(), nullable=False, default=False, server_default="false"
)
show_in_lists = 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)'}">"""
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)'}">"""
)
group_membership = db.Table(
"group_membership",
db.Column("etudid", db.Integer, db.ForeignKey("identite.id")),
db.Column("group_id", db.Integer, db.ForeignKey("group_descr.id")),
db.UniqueConstraint("etudid", "group_id"),
)