def get_chapters(self):
chapters = []
for key in self.chapters:
chapter = Chapter.get(key)
chapter.questions = list_questions(chapter)
chapters.append(chapter)
return chapters
def has_chapter(self, chapter):
"""
Check if the course has a prticular chapter
"""
if isinstance(chapter, Chapter):
chapter_key = chapter.key()
else:
chapter_key = chapter
chapter = Chapter.get(chapter_key)
if chapter_key in self.chapters:
return True
root = root_key()
parent_chapter_key = chapter.parent_key()
while parent_chapter_key != root and parent_chapter_key != None:
if parent_chapter_key in self.chapters:
return True
chap = Chapter.get(parent_chapter_key)
parent_chapter_key = chap.parent_key()
return False
def count_questions(self):
n = 0
for key in self.chapters:
chapter = Chapter.get(key)
n += count_questions(chapter)
self.num_questions = n
