def index():
if request.method == 'POST':
message = request.form['message']
chatbot_proj_id = 1
_, response_message = wit_ai_understand(message)
if update_classroom_db(message, response_message):
return redirect(url_for('classroom.index'))
db = get_db()
posts = db.execute(
'SELECT p.id, message, p.created AS created, author_id, username, r.body AS response, r.voice_filename'
' FROM post p'
' JOIN user u ON p.author_id = u.id'
' JOIN response r ON p.response_id = r.id'
' ORDER BY created DESC').fetchall()
proj_name = g.chatbot_proj['proj_name']
proj_asset_url = 'projs' + '/' + proj_name
video_folder = os.path.join(current_app.static_folder, 'projs', proj_name,
'responses_videos')
has_videos = dict()
for post in posts:
print(post)
print(str(post['voice_filename']))
has_videos[str(post['voice_filename'])] = os.path.isfile(
os.path.join(video_folder,
str(post['voice_filename']) + '.mp4'))
return render_template('classroom/index.html',
proj_asset_dir=proj_asset_url,
posts=posts,
has_videos=has_videos)
def register(role='student'):
if request.method == 'POST':
username = request.form['username']
password = request.form['password']
db = get_db()
error = None
if not username:
error = 'Username is required.'
elif not password:
error = 'Password is required.'
elif db.execute('SELECT id FROM user WHERE username = ?',
(username, )).fetchone() is not None:
error = 'User {} is already registered.'.format(username)
if error is None:
db.execute(
'INSERT INTO user (username, password, role) VALUES (?, ?, ?)',
(username, generate_password_hash(password), role))
db.commit()
return redirect(url_for('auth.login'))
flash(error)
return render_template('auth/register.html')
def load_logged_in_user():
user_id = session.get('user_id')
if user_id is None:
g.user = None
else:
g.user = get_db().execute('SELECT * FROM user WHERE id = ?',
(user_id, )).fetchone()
load_logged_in_user_chatbot_projs()
def get_post(id, check_author=True):
post = get_db().execute(
'SELECT p.id, message, created, author_id, username'
' FROM post p JOIN user u ON p.author_id = u.id'
' WHERE p.id = ?', (id, )).fetchone()
if post is None:
abort(404, "Message id {0} doesn't exist.".format(id))
if check_author and post['author_id'] != g.user['id']:
abort(403)
return post
def update(id):
post = get_post(id)
if request.method == 'POST':
message = request.form['message']
error = None
if not message:
error = 'Message is required.'
if error is not None:
flash(error)
else:
db = get_db()
db.execute('UPDATE post SET message = ?'
' WHERE id = ?', (message, id))
db.commit()
return redirect(url_for('classroom.index'))
return render_template('classroom/update.html', post=post)
def login():
if request.method == 'POST':
username = request.form['username']
password = request.form['password']
db = get_db()
error = None
user = db.execute('SELECT * FROM user WHERE username = ?',
(username, )).fetchone()
if user is None:
error = 'Incorrect username.'
elif not check_password_hash(user['password'], password):
error = 'Incorrect password.'
if error is None:
session.clear()
session['user_id'] = user['id']
return redirect(url_for('index'))
flash(error)
return render_template('auth/login.html')
def update_classroom_db(message, response_message):
chatbot_proj_id = 1
response_id = 1
error = None
if not message:
error = 'The message is required.'
if error is not None:
flash(error)
return False
else:
m = hashlib.sha224()
m.update(response_message.strip().encode("utf-8"))
response_message_filename = m.hexdigest() + '.mp3'
speech = gTTS(text=response_message, lang='en', slow=False)
proj_name = g.chatbot_proj['proj_name']
mp3_fpath = os.path.join(current_app.static_folder, 'projs', proj_name,
'responses_voices', response_message_filename)
if not os.path.isfile(mp3_fpath):
speech.save(mp3_fpath)
# If two people are inserting at the same time,
# as long as they are using different cursors, cursor.lastrowid
# will return the id for the last row that cursor inserted.
db = get_db()
cursor = db.cursor()
cursor.execute(
'INSERT INTO response (chatbot_proj_id, body, voice_filename)'
' VALUES (?, ?, ?)',
(chatbot_proj_id, response_message, response_message_filename))
response_id = cursor.lastrowid
cursor.execute(
'INSERT INTO post (chatbot_proj_id, message, author_id, response_id)'
' VALUES (?, ?, ?, ?)',
(chatbot_proj_id, message, g.user['id'], response_id))
db.commit()
return True
def simple_index():
db = get_db()
posts = db.execute(
'SELECT p.id, message, p.created AS created, author_id, username, r.body AS response, r.voice_filename'
' FROM post p'
' JOIN user u ON p.author_id = u.id'
' JOIN response r ON p.response_id = r.id'
' ORDER BY created DESC').fetchall()
proj_name = g.chatbot_proj['proj_name']
proj_asset_url = 'projs' + '/' + proj_name
video_folder = os.path.join(current_app.static_folder, 'projs', proj_name,
'responses_videos')
has_videos = dict()
for post in posts:
print(post)
print(str(post['voice_filename']))
has_videos[str(post['voice_filename'])] = os.path.isfile(
os.path.join(video_folder,
str(post['voice_filename']) + '.mp4'))
return render_template('classroom/simple_index.html',
proj_asset_dir=proj_asset_url,
posts=posts,
has_videos=has_videos)
def load_logged_in_user_chatbot_projs():
# TODO: support switch across chatbot projects for each student
g.chatbot_proj = get_db().execute('SELECT * FROM chatbot_proj').fetchone()
def delete(id):
get_post(id)
db = get_db()
db.execute('DELETE FROM post WHERE id = ?', (id, ))
db.commit()
return redirect(url_for('classform.index'))