def get_completeness():
COURSE = get_collection('course')
COLLECTION = get_collection('collection')
FOCUS = get_collection('focus')
result = COLLECTION.find({'usr': g.usr['usr']})
json_body = {}
for i, course in enumerate(result):
course_id = course['id']
course_focus = FOCUS.find_one({'id': course_id, 'usr': g.usr['usr']})
course_content = COURSE.find_one({'id': course_id})
json_body[i] = course_content
json_body[i]['complete'] = calcu_focus_completeness(course_focus)
json_body[i].pop('_id')
return jsonify(json_body)
def get_usr_info():
MEMBER = get_collection('member')
result = MEMBER.find_one({'usr': g.usr['usr']})
result.pop('_id')
result.pop('pic')
return jsonify(result)
def get_usr_pic():
MEMBER = get_collection('member')
result = MEMBER.find_one({'usr': g.usr['usr']})
response = make_response(result['pic'])
response.headers.set('Content-Type', 'image/png')
return response
def add_focus():
FOCUS = get_collection('focus')
result_filter = {
'usr': g.usr['usr'],
'id': request.args.get('course_id') # course_id
}
c_time = str(math.floor(float(request.args.get('time'))))
document = result_filter.copy()
document['rate'] = 1.0
document['emotion'] = {}
document['emotion'][c_time] = {
'anger': float(request.args.get('anger')),
'disgust': float(request.args.get('disgust')),
'fear': float(request.args.get('fear')),
'happiness': float(request.args.get('happiness')),
'neutral': float(request.args.get('neutral')),
'sadness': float(request.args.get('sadness')),
'surprise': float(request.args.get('surprise')),
'vector_x': abs(float(request.args.get('vector_x'))),
'vector_y': abs(float(request.args.get('vector_y'))),
'vector_z': float(request.args.get('vector_z')),
'position_x': float(request.args.get('position_x')),
'position_y': float(request.args.get('position_y'))
}
result = FOCUS.find_one(result_filter)
if result: # 已经有了
result['emotion'][c_time] = document['emotion'][c_time]
FOCUS.replace_one(result_filter, result)
else:
FOCUS.insert_one(document)
return 'Success!'
def get_avg_focus():
"""
每个老师获取特定课程的平均专注度
"""
FOCUS = get_collection('focus')
result = FOCUS.find({'id': request.args.get('course_id')})
if result:
json_body = {}
all_weight = 0.0
for focus in result:
weight = focus['rate']
all_weight += weight
for i in range(0, 600):
if str(i) in focus['emotion']:
if str(i) in json_body:
json_body[str(i)] += calcu_focus(
focus['emotion'][str(i)]) * weight
else:
json_body[str(i)] = calcu_focus(
focus['emotion'][str(i)]) * weight
for i in range(0, 600):
if str(i) in json_body:
json_body[str(i)] /= all_weight
return jsonify(json_body)
else:
return 'None'
def get_comment():
COMMENT = get_collection('comment')
result = COMMENT.find({'id': request.args.get('id')})
json_body = {}
for i, comment in enumerate(result):
json_body[i] = comment
json_body[i].pop('_id')
return jsonify(json_body)
def rate():
FOCUS = get_collection('focus')
result_filter = {'usr': g.usr['usr'], 'id': request.args.get('course_id')}
result = FOCUS.find_one(result_filter)
if result:
result['rate'] = int(request.args.get('rate')) / 5
FOCUS.replace_one(result_filter, result)
return 'Success!'
def add_comment():
COMMENT = get_collection('comment')
document = {
'id': request.args.get('id'),
'startTime': request.args.get('startTime'),
'endTime': request.args.get('endTime'),
'content': request.args.get('content')
}
COMMENT.insert_one(document)
return 'Success!'
def update_usr_pwd():
MEMBER = get_collection('member')
result = MEMBER.find_one({'usr': g.usr['usr']})
pwd = request.args.get('pwd')
if pwd != '':
result['pwd'] = pwd
MEMBER.replace_one({'usr': g.usr['usr']}, result)
return 'Success!'
def load_logged_in_user():
usr_id = session.get('usr')
if usr_id is None:
g.usr = None
else:
MEMBER = get_collection('member')
result = MEMBER.find_one({'usr': usr_id})
result.pop('pwd')
g.usr = result
def sign_in():
result_filter = {'usr': request.form['usr'], 'pwd': request.form['pwd']}
MEMBER = get_collection('member')
result = MEMBER.find_one(result_filter)
if result:
session.clear() # What is a session? And how does cookie work in this?
session['usr'] = result['usr']
return jsonify(status=True, role=result['role'])
else:
return jsonify(status=False)
def update_usr_info():
MEMBER = get_collection('member')
result = MEMBER.find_one({'usr': g.usr['usr']})
pwd = request.form['pwd']
if pwd != '':
result['pwd'] = pwd
image = request.files['file']
result['pic'] = base64.encodestring(image.read())
MEMBER.replace_one({'usr': g.usr['usr']}, result)
return 'Success!'
def get_focus():
"""
每个学生获取自己的专注度
"""
FOCUS = get_collection('focus')
result_filter = {'usr': g.usr['usr'], 'id': request.args.get('course_id')}
result = FOCUS.find_one(result_filter)
if result:
json_body = {}
for i in range(0, 600):
if str(i) in result['emotion']:
json_body[str(i)] = calcu_focus(result['emotion'][str(i)])
return jsonify(json_body)
else:
return 'None'
def sign_up():
MEMBER = get_collection('member')
result = MEMBER.find_one({'usr': request.form['usr']})
if result:
return 'Taken'
else:
image = request.files['file']
document = {
'usr': request.form['usr'],
'pwd': request.form['pwd'],
'role': request.form['role'],
'date': str(datetime.date.today()),
'pic': base64.encodestring(image.read())
}
MEMBER.insert_one(document)
return 'Success!'
