med/users/models.py

# -*- mode: python; coding: utf-8 -*-
# Copyright (C) 2017-2019 by BDE ENS Paris-Saclay
# SPDX-License-Identifier: GPL-3.0-or-later

from django.contrib.auth.models import AbstractUser
from django.db import models
from django.utils import timezone
from django.utils.translation import gettext_lazy as _
from med.settings import MAX_EMPRUNT


class User(AbstractUser):
    telephone = models.CharField(
        verbose_name=_('phone number'),
        max_length=15,
        blank=True,
    )
    address = models.CharField(
        verbose_name=_('address'),
        max_length=255,
        blank=True,
    )
    maxemprunt = models.IntegerField(
        verbose_name=_('maximum borrowed'),
        help_text=_('Maximal amount of simultaneous borrowed item '
                    'authorized.'),
        default=MAX_EMPRUNT,
    )
    comment = models.CharField(
        verbose_name=_('comment'),
        help_text=_('Promotion...'),
        max_length=255,
        blank=True,
    )
    date_joined = models.DateTimeField(
        _('date joined'),
        default=timezone.now,
        null=True,
    )

    REQUIRED_FIELDS = ['first_name', 'last_name', 'email']

    @property
    def is_member(self):
        last_year = Adhesion.objects.all().order_by(
            'starting_in').reverse().first()
        return last_year and self in last_year.members.all()


class Adhesion(models.Model):
    starting_in = models.IntegerField(
        verbose_name=_('starting in'),
        help_text=_('Year in which the membership year starts.'),
        unique=True,
    )
    ending_in = models.IntegerField(
        verbose_name=_('ending in'),
        help_text=_('Year in which the membership year ends.'),
        unique=True,
    )
    members = models.ManyToManyField(
        'User',
        verbose_name=_('members'),
        blank=True,
    )

    class Meta:
        verbose_name = _('membership year')
        verbose_name_plural = _('membership years')

    def __str__(self):
        return f"{self.starting_in} - {self.ending_in}"