ScoDocMM/app/scodoc/sco_vdi.py

122 lines
3.9 KiB
Python

# -*- mode: python -*-
# -*- coding: utf-8 -*-
##############################################################################
#
# Gestion scolarite IUT
#
# Copyright (c) 1999 - 2021 Emmanuel Viennet. All rights reserved.
#
# This program 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.
#
# This program 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 this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
#
# Emmanuel Viennet emmanuel.viennet@viennet.net
#
##############################################################################
"""Classe stockant le VDI avec le code étape (noms de fichiers maquettes et code semestres)
"""
from app.scodoc.sco_exceptions import ScoValueError
class ApoEtapeVDI(object):
_ETAPE_VDI_SEP = "!"
def __init__(self, etape_vdi=None, etape="", vdi=""):
"""Build from string representation, e.g. 'V1RT!111'"""
if etape_vdi:
self.etape_vdi = etape_vdi
self.etape, self.vdi = self.split_etape_vdi(etape_vdi)
elif etape:
if self._ETAPE_VDI_SEP in etape:
raise ScoValueError("valeur code etape invalide")
self.etape, self.vdi = etape, vdi
self.etape_vdi = self.concat_etape_vdi(etape, vdi)
else:
self.etape_vdi, self.etape, self.vdi = "", "", ""
def __repr__(self):
return self.__class__.__name__ + "('" + str(self) + "')"
def __str__(self):
return self.etape_vdi
def _cmp(self, other):
"""Test égalité de deux codes étapes.
Si le VDI des deux est spécifié, on l'utilise. Sinon, seul le code étape est pris en compte.
Donc V1RT == V1RT!111, V1RT!110 == V1RT, V1RT!77 != V1RT!78, ...
Compare the two objects x (=self) and y and return an integer according to
the outcome. The return value is negative if x < y, zero if x == y
and strictly positive if x > y.
"""
if other is None:
return -1
if type(other) == str:
other = ApoEtapeVDI(other)
if self.vdi and other.vdi:
x = (self.etape, self.vdi)
y = (other.etape, other.vdi)
else:
x = self.etape
y = other.etape
return (x > y) - (x < y)
def __eq__(self, other):
return self._cmp(other) == 0
def __ne__(self, other):
return self._cmp(other) != 0
def __lt__(self, other):
return self._cmp(other) < 0
def __le__(self, other):
return self._cmp(other) <= 0
def __gt__(self, other):
return self._cmp(other) > 0
def __ge__(self, other):
return self._cmp(other) >= 0
def split_etape_vdi(self, etape_vdi):
"""Etape Apogee can be stored as 'V1RT' or, including the VDI version,
as 'V1RT!111'
Returns etape, VDI
"""
if etape_vdi:
t = etape_vdi.split(self._ETAPE_VDI_SEP)
if len(t) == 1:
etape = etape_vdi
vdi = ""
elif len(t) == 2:
etape, vdi = t
else:
raise ValueError("invalid code etape")
return etape, vdi
else:
return etape_vdi, ""
def concat_etape_vdi(self, etape, vdi=""):
if vdi:
return self._ETAPE_VDI_SEP.join([etape, vdi])
else:
return etape
# [ ApoEtapeVDI('V1RT!111'), ApoEtapeVDI('V1RT!112'), ApoEtapeVDI('VCRT'), ApoEtapeVDI('V1RT') ]