def join_class_info_update(data):
user = db.course_users.find_one({'username': session['username']})
if user == None:
user = {'username': session['username'], 'course_id': []}
db.course_users.insert_one(user)
user = db.course_users.find_one({'username': session['username']})
courses = user['course_id']
if data['course_id'] not in courses:
user['course_id'].append(data['course_id'])
# db.courses.replace_one({'_id': ObjectId(self.course_id)}, course)
db.course_users.replace_one({'username': session['username']}, user)
course_id = data['course_id']
if len(course_id) != 24:
return -1
got_ret = space_check(str(course_id))
if got_ret == -1:
return -1
course = db.courses.find_one({'_id': ObjectId(course_id)})
if course == None:
return -1
users = course['enrolled']
if session['username'] not in users:
NotificationSender.Sender(course_id,
"").register_observer(session['username'])
else:
return 2
return 1
def update_post(data , course_id):
# postdetails=post(data['message'],data['files'],session['username'], course_id)
postdetails=Post.PostBuilder(course_id)\
.with_author(session['username'])\
.with_text(data['message'])\
.with_links(data['links'])\
.build()
post_id=save_to_database1(postdetails)
# print(session['username'])
course = db.courses.find_one({'_id': ObjectId(course_id)})
course_name = course['course_name']
notification = {"course_id":course_id, "course_name":course_name,"notification_type": "post", "username": session['username']}
NotificationSender.Sender(course_id, notification).notify_observer()
return
def update_post(data, course_id):
postdetails = post(data['message'], data['files'], session['username'],
course_id)
post_id = save_to_database(postdetails)
#print(session['username'])
course = db.courses.find_one({'_id': ObjectId(course_id)})
course_name = course['course_name']
notification = {
"course_id": course_id,
"course_name": course_name,
"username": session['username']
}
NotificationSender.Sender(course_id, notification).notify_observer()
return
def show_news_feed(course_id):
pymongo_cursor = db.classroom_newsfeed.find({'course_id':course_id})
all_data = list(pymongo_cursor)
data = all_data
# print(data)
data.reverse()
# print(data)
course = db.courses.find_one({'_id':ObjectId(course_id)})
users = course['enrolled']
if session['username'] not in users:
NotificationSender.Sender(course_id, "").register_observer(session['username'])
notifications = db.notifications.find_one({'username': session['username']})
if notifications == None:
notifications = []
else:
notifications = notifications['notifications']
notifications.reverse()
return course, data, users, notifications
def leave_class_info_update(course_id):
course = db.courses.find_one({'_id': ObjectId(course_id)})
if course is None:
return
NotificationSender.Sender(course_id,
"").remove_observer(session['username'])
user_info = db.course_users.find_one({'username': session['username']})
if user_info is None:
# print(user_info)
# print(session['username'])
return
# print(user_info['course_id'])
if course_id in user_info['course_id']:
user_info['course_id'].remove(course_id)
if ObjectId(course_id) in user_info['course_id']:
user_info['course_id'].remove(ObjectId(course_id))
# print(user_info['course_id'])
db.course_users.replace_one({'username': session['username']}, user_info)
return