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course_files.py
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course_files.py
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from canvasapi.canvas import Course, File
from canvasapi.exceptions import ResourceDoesNotExist
__all__ = ['CourseFiles']
class CourseFileCache:
_files = {}
def __init__(self, course: Course):
self._files = {file.id: file for file in course.get_files()}
def get_file(self, file_id: str) -> File:
return self._files.get(file_id)
def get_iter(self):
return self._files.values()
class CourseFiles:
_cache = {}
def __init__(self):
pass
def get_files(self, course: Course) -> File:
cache = self._check_cache(course)
if cache:
for file in cache.get_iter():
yield file
else:
raise ResourceDoesNotExist("File tab is not supported.")
def get_file(self, course: Course, file_id: str) -> File:
cache = self._check_cache(course)
if cache:
return cache.get_file(file_id)
else:
return course.get_file(file_id)
def _check_cache(self, course: Course) -> bool:
if course.id not in self._cache:
if 'files' in [tab.id for tab in course.get_tabs()]:
self._cache[course.id] = CourseFileCache(course)
else:
self._cache[course.id] = None
return self._cache.get(course.id)