2023-04-17 15:35:42 +02:00
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"""
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Gestion de l'archivage des justificatifs
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Ecrit par Matthias HARTMANN
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"""
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import os
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from datetime import datetime
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from shutil import rmtree
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from app.models import Identite
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from app.scodoc.sco_archives import BaseArchiver
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from app.scodoc.sco_exceptions import ScoValueError
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from app.scodoc.sco_utils import is_iso_formated
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class Trace:
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"""gestionnaire de la trace des fichiers justificatifs"""
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def __init__(self, path: str) -> None:
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self.path: str = path + "/_trace.csv"
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self.content: dict[str, list[datetime, datetime, str]] = {}
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self.import_from_file()
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def import_from_file(self):
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"""import trace from file"""
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if os.path.isfile(self.path):
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with open(self.path, "r", encoding="utf-8") as file:
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for line in file.readlines():
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csv = line.split(",")
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if len(csv) < 4:
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continue
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fname: str = csv[0]
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entry_date: datetime = is_iso_formated(csv[1], True)
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delete_date: datetime = is_iso_formated(csv[2], True)
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user_id = csv[3]
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2023-07-04 15:04:58 +02:00
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self.content[fname] = [entry_date, delete_date, user_id]
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2023-04-17 15:35:42 +02:00
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2023-07-04 15:04:58 +02:00
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def set_trace(self, *fnames: str, mode: str = "entry", current_user: str = None):
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"""Ajoute une trace du fichier donné
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mode : entry / delete
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"""
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modes: list[str] = ["entry", "delete", "user_id"]
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2023-04-17 15:35:42 +02:00
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for fname in fnames:
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if fname in modes:
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continue
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traced: list[datetime, datetime, str] = self.content.get(fname, False)
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if not traced:
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self.content[fname] = [None, None, None]
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traced = self.content[fname]
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2023-07-04 15:04:58 +02:00
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traced[modes.index(mode)] = (
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datetime.now() if mode != "user_id" else current_user
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)
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self.save_trace()
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def save_trace(self):
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"""Enregistre la trace dans le fichier _trace.csv"""
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lines: list[str] = []
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for fname, traced in self.content.items():
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date_fin: datetime or None = traced[1].isoformat() if traced[1] else "None"
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if traced[0] is not None:
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lines.append(f"{fname},{traced[0].isoformat()},{date_fin}, {traced[2]}")
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with open(self.path, "w", encoding="utf-8") as file:
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file.write("\n".join(lines))
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def get_trace(
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self, fnames: list[str] = ()
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) -> dict[str, list[datetime, datetime, str]]:
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"""Récupère la trace pour les noms de fichiers.
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si aucun nom n'est donné, récupère tous les fichiers"""
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if fnames is None or len(fnames) == 0:
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return self.content
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traced: dict = {}
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for fname in fnames:
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traced[fname] = self.content.get(fname, None)
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return traced
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class JustificatifArchiver(BaseArchiver):
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"""
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TOTALK:
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- oid -> etudid
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- archive_id -> date de création de l'archive (une archive par dépot de document)
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justificatif
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└── <dept_id>
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└── <etudid/oid>
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├── [_trace.csv]
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└── <archive_id>
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├── [_description.txt]
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└── [<filename.ext>]
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"""
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def __init__(self):
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BaseArchiver.__init__(self, archive_type="justificatifs")
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def save_justificatif(
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self,
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etudid: int,
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filename: str,
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data: bytes or str,
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archive_name: str = None,
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description: str = "",
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user_id: str = None,
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) -> str:
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"""
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Ajoute un fichier dans une archive "justificatif" pour l'etudid donné
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Retourne l'archive_name utilisé
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"""
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self._set_dept(etudid)
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if archive_name is None:
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archive_id: str = self.create_obj_archive(
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oid=etudid, description=description
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)
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else:
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archive_id: str = self.get_id_from_name(etudid, archive_name)
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fname: str = self.store(archive_id, filename, data)
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trace = Trace(self.get_obj_dir(etudid))
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trace.set_trace(fname, mode="entry")
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if user_id is not None:
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trace.set_trace(fname, mode="user_id", current_user=user_id)
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return self.get_archive_name(archive_id), fname
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def delete_justificatif(
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self,
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etudid: int,
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archive_name: str,
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filename: str = None,
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has_trace: bool = True,
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):
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"""
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Supprime une archive ou un fichier particulier de l'archivage de l'étudiant donné
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Si trace == True : sauvegarde le nom du/des fichier(s) supprimé(s) dans la trace de l'étudiant
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"""
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self._set_dept(etudid)
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if str(etudid) not in self.list_oids():
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raise ValueError(f"Aucune archive pour etudid[{etudid}]")
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archive_id = self.get_id_from_name(etudid, archive_name)
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if filename is not None:
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if filename not in self.list_archive(archive_id):
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raise ValueError(
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f"filename {filename} inconnu dans l'archive archive_id[{archive_id}] -> etudid[{etudid}]"
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)
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path: str = os.path.join(self.get_obj_dir(etudid), archive_id, filename)
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if os.path.isfile(path):
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if has_trace:
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trace = Trace(self.get_obj_dir(etudid))
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trace.set_trace(filename, mode="delete")
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os.remove(path)
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else:
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if has_trace:
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trace = Trace(self.get_obj_dir(etudid))
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trace.set_trace(*self.list_archive(archive_id), mode="delete")
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self.delete_archive(
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os.path.join(
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self.get_obj_dir(etudid),
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archive_id,
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)
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)
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def list_justificatifs(
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self, archive_name: str, etudid: int
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) -> list[tuple[str, int]]:
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"""
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Retourne la liste des noms de fichiers dans l'archive donnée
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"""
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self._set_dept(etudid)
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filenames: list[str] = []
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archive_id = self.get_id_from_name(etudid, archive_name)
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filenames = self.list_archive(archive_id)
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trace: Trace = Trace(self.get_obj_dir(etudid))
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traced = trace.get_trace(filenames)
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return [(key, value[2]) for key, value in traced.items()]
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def get_justificatif_file(self, archive_name: str, etudid: int, filename: str):
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"""
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Retourne une réponse de téléchargement de fichier si le fichier existe
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"""
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self._set_dept(etudid)
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archive_id: str = self.get_id_from_name(etudid, archive_name)
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if filename in self.list_archive(archive_id):
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return self.get_archived_file(etudid, archive_name, filename)
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raise ScoValueError(
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f"Fichier {filename} introuvable dans l'archive {archive_name}"
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)
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def _set_dept(self, etudid: int):
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"""
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Mets à jour le dept_id de l'archiver en fonction du département de l'étudiant
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"""
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etud: Identite = Identite.query.filter_by(id=etudid).first()
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self.set_dept_id(etud.dept_id)
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def remove_dept_archive(self, dept_id: int = None):
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"""
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Supprime toutes les archives d'un département (ou de tous les départements)
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⚠ Supprime aussi les fichiers de trace ⚠
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"""
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self.set_dept_id(1)
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self.initialize()
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if dept_id is None:
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rmtree(self.root, ignore_errors=True)
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else:
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rmtree(os.path.join(self.root, str(dept_id)), ignore_errors=True)
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def get_trace(
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self, etudid: int, *fnames: str
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) -> dict[str, list[datetime, datetime]]:
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"""Récupère la trace des justificatifs de l'étudiant"""
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trace = Trace(self.get_obj_dir(etudid))
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return trace.get_trace(fnames)
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