copyright_db.py
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	""" copyright_db.py: Description of the copyrights"""

	__author__ = "Guillaume Anciaux and Nicolas Richart"
	__credits__ = [
	"Guillaume Anciaux <guillaume.anciaux@epfl.ch>",
	"Nicolas Richart <nicolas.richart@epfl.ch>",
	]
	__copyright__ = "Copyright (©) 2010-2021 EPFL (Ecole Polytechnique Fédérale" \
	" de Lausanne) Laboratory (LSMS - Laboratoire de Simulation" \
	" en Mécanique des Solides)"
	__license__ = "GPLv3"
	__version__ = "2.0"


	from . import export
	from datetime import datetime as dt


	@export
	class CopyrightDB:
	def __init__(self, db):
	self.__db = db
	self._copyrights = self.__db.copyrights

	def find_by_id(self, lid):
	find = [copy for copy in self._copyrights
	if copy.lid == lid]
	if find:
	return find[0]
	else:
	return None

	def find_by_date(self, date):
	if type(date) == str:
	date = dt.strptime(date, "%d-%m-%Y")
	elif type(date) == float:
	date = dt.fromtimestamp(date)

	find = [copy for copy in self._copyrights
	if copy.start < date <= copy.end]
	if find:
	return find[0]
	else:
	return None