class MessageSerializer(serializers.ModelSerializer):
"""
Message serializer.
"""
next_handler = injections.depends(ProgressHandler)
input = serializers.SerializerMethodField()
# errors = serializers.CharField(source='get_errors', read_only=True)
addMessages = serializers.SerializerMethodField()
nextMessagesUrl = serializers.CharField(source='get_next_url',
read_only=True)
class Meta:
model = Message
fields = (
'id',
'input',
'addMessages',
'nextMessagesUrl',
# 'errors',
)
def set_group(self, obj):
try:
getattr(self, 'qs')
except AttributeError:
self.qs = [obj]
if obj.timestamp:
current = obj
for message in obj.chat.message_set.filter(
timestamp__gt=obj.timestamp):
if self.next_handler.group_filter(current, message):
current = message
self.qs.append(message)
def get_input(self, obj):
"""
Getting description for next message.
"""
self.set_group(obj)
input_data = {
'type':
obj.get_next_input_type(),
'url':
obj.get_next_url(),
'options':
obj.get_options(),
'includeSelectedValuesFromMessages':
[i.id for i in self.qs if i.contenttype == 'uniterror']
}
if not obj.chat.next_point:
input_data['html'] = ' '
return InputSerializer().to_representation(input_data)
def get_addMessages(self, obj):
self.set_group(obj)
return InternalMessageSerializer(many=True).to_representation(self.qs)
class TwilioGateway:
executor = injections.depends(ThreadPoolExecutor)
def __init__(self, loop, account_id, auth_token):
self.loop = loop
self.account_id = account_id
self.auth_token = auth_token
self.client = Client(self.account_id, self.auth_token)
@run_in_executor()
def _send_sms(self, message, callback=None):
self.client.messages.create(
body=message,
from_="+13392007215",
status_callback=callback,
to="+380974219029",
)
async def send_sms(self, message, callback=None):
return await self._send_sms(message, callback)
class UsersHandler:
elastic = injections.depends(aioelasticsearch.Elasticsearch)
index = "users"
doc_type = "document"
async def search(self, request):
q = request.query.get("query")
query = {"query": {"match_all": {}}}
if q is not None:
query = {"query": {"match": {"name": q}}}
resp = await self.elastic.search(
index=self.index, doc_type=self.doc_type, body=query
)
if not resp:
raise web.HTTPNotFound
users = [doc["_source"] for doc in resp["hits"]["hits"]]
return web.json_response({"users": UsersOutputTrafaret(users)})
class B(object):
c = di.depends(object, 'c')
class A(object):
b = di.depends(object, 'b')
y = di.depends(Y, 'y')
class Cache(Base):
processor = di.depends(Base, 'processor')
class Processor(Base):
cache = di.depends(Base, 'cache')
class Source:
value = di.depends(self.Consumer, 'consumer')
def __injected__(self):
assert self.value.value is 'John'
class MessagesView(ValidateMixin, generics.RetrieveUpdateAPIView,
viewsets.GenericViewSet):
"""
GET or UPDATE one message.
"""
parser_classes = (JSONParser, )
next_handler = injections.depends(ProgressHandler)
serializer_class = MessageSerializer
queryset = Message.objects.all()
authentication_classes = (SessionAuthentication, )
permission_classes = (IsAuthenticated, IsOwner)
def roll_fsm_forward(self, chat, message):
""" This method should be used when we want to roll fsm forward to the next serialized message and return it.
:param chat: Chat instance
:param message: Message
:return: Response with serialized message
"""
chat.next_point = self.next_handler.next_point(current=message.content,
chat=chat,
message=message,
request=self.request)
chat.save()
message.chat = chat
serializer = self.get_serializer(message)
return Response(serializer.data)
def retrieve(self, request, *args, **kwargs):
message = self.get_object()
chat_id = self.request.GET.get('chat_id')
try:
chat = self.validate_and_get_chat(chat_id)
except ValidationError as e:
return Response({'errors': str(e)})
self.check_object_permissions(self.request, chat)
next_point = chat.next_point
if (message.contenttype in ['response', 'uniterror']
and message.content_id and next_point == message):
return self.roll_fsm_forward(chat, message)
if not message.chat or message.chat != chat or message.timestamp:
serializer = self.get_serializer(message)
return Response(serializer.data)
if message and message.kind == 'add_faq' and message.sub_kind == 'add_faq':
return self.roll_fsm_forward(chat, message)
# Important for resolving additional messages
if message and message.kind not in ('button', 'faqs'):
if not ('additional' not in chat.state.fsmNode.funcName
and message.kind == 'response'):
# Set next message for user
if not message.timestamp:
message.timestamp = timezone.now()
message.save()
chat.next_point = self.next_handler.next_point(
current=message.content,
chat=chat,
message=message,
request=self.request)
chat.save()
message.chat = chat
if message and message.kind == 'faqs':
message.timestamp = timezone.now()
message.save()
serializer = self.get_serializer(message)
return Response(serializer.data)
def update(self, request, *args, **kwargs):
chat_id = self.request.data.get('chat_id')
try:
chat = self.validate_and_get_chat(chat_id)
except ValidationError as e:
return Response({'errors': str(e)})
self.check_object_permissions(self.request, chat)
message = self.get_object()
if (message.input_type == 'text'
and not self.request.data.get('text', '').strip() and
not message.lesson_to_answer.lesson.sub_kind == Lesson.CANVAS):
return Response({'error': 'Empty response. Enter something!'})
# run validation for numbers
if message.lesson_to_answer and message.lesson_to_answer.lesson.sub_kind == 'numbers':
try:
float(self.request.data.get('text'))
except ValueError:
return Response({'error': 'Not correct value!'})
# Consider to move it to a backgrount task
update_activity(chat_id)
return super(MessagesView, self).update(request, *args, **kwargs)
def perform_update(self, serializer):
chat_id = self.request.data.get('chat_id')
message = self.get_object()
node = message.chat.state.fsmNode
chat = Chat.objects.get(id=chat_id, user=self.request.user)
activity = chat.state and chat.state.activity
def is_in_node(node: str) -> bool:
return message.chat.state.fsmNode.name == node
# Check if message is not in current chat
if not message.chat or message.chat != chat:
return
# Do procced the user response in the FSMNode
if hasattr(node._plugin, 'handler'):
node._plugin.handler(message, chat, self.request,
self.next_handler)
return
if is_chat_add_faq(message) and is_in_node('GET_NEW_FAQ'):
message.text = self.request.data.get('option', 'no')
message.save()
chat.last_modify_timestamp = timezone.now()
chat.save()
if message.input_type == 'text' and not message.sub_kind == 'add_faq':
message.chat = chat
text = self.request.data.get('text')
if message.lesson_to_answer.sub_kind == Lesson.EQUATION:
text = text.strip("$")
text = '.. math:: ' + text
resp = StudentResponse(text=text)
# convert base64 attachment string to django File
data_attachment = self.request.data.get('attachment')
if data_attachment and data_attachment.startswith('data:image'):
format, image_string = data_attachment.split(';base64,')
extension = format.split('/')[-1].split('+')[0]
name = '{}-{}.{}'.format('canvas', key_secret_generator(),
extension)
resp.attachment = ContentFile(base64.b64decode(image_string),
name=name)
if not message.content_id:
resp.lesson = message.lesson_to_answer.lesson
resp.unitLesson = message.lesson_to_answer
resp.course = message.chat.enroll_code.courseUnit.course
resp.author = self.request.user
resp.activity = activity
resp.is_test = chat.is_test
resp.is_preview = chat.enroll_code.isPreview
resp.sub_kind = resp.lesson.sub_kind
else:
resp = message.content
resp.text = text
resp.is_trial = chat.is_trial
resp.save()
if not message.timestamp:
message.content_id = resp.id
chat.next_point = message
chat.last_modify_timestamp = timezone.now()
chat.save()
serializer.save(content_id=resp.id,
timestamp=timezone.now(),
chat=chat)
else:
serializer.save()
message_is_response = message.contenttype == 'response'
lesson_has_sub_kind = message.lesson_to_answer and message.lesson_to_answer.sub_kind
content_is_not_additional = not message.content and not message.is_additional
mc_selfeval = None
if (message_is_response and lesson_has_sub_kind
and content_is_not_additional) or (
message_is_response and message.lesson_to_answer
and message.lesson_to_answer.sub_kind == 'choices'
and not content_is_not_additional):
resp_text = ''
if message.lesson_to_answer.sub_kind == Lesson.MULTIPLE_CHOICES:
selected_items = self.request.data.get('selected')
try:
selected = selected_items[str(message.id)]['choices']
except KeyError:
# here request.data is like {"option":1,"chat_id":9,"selected":{"116":{"choices":[0]}}}
selected_msg_ids = list(
self.request.data.get('selected').keys())
# selected_messages == tuple with keys of this dict {"116":{"choices":[0]}} - it will be ("116",)
msg_ids = Message.objects.filter(id__in=selected_msg_ids,
chat=chat).values_list(
'id', flat=True)
correct_ids = set(msg_ids).intersection(
set(int(i) for i in list(selected_items.keys())))
selected_choices = []
for i in correct_ids:
selected_choices.append(
selected_items[str(i)]['choices'])
selected = chain(*selected_choices)
resp_text = '[selected_choices] ' + ' '.join(
str(i) for i in selected)
correct_choices = set([
_[0] for _ in
message.lesson_to_answer.lesson.get_correct_choices()
])
selected_choices = set([_ for _ in chain(*selected_choices)])
if not (correct_choices - selected_choices
or correct_choices ^ selected_choices):
mc_selfeval = StudentResponse.CORRECT
elif selected_choices & correct_choices:
mc_selfeval = StudentResponse.CLOSE
else:
mc_selfeval = StudentResponse.DIFFERENT
resp = StudentResponse(text=resp_text)
# tes, preview flags
resp.is_test = chat.is_test
resp.selfeval = mc_selfeval or None
resp.is_preview = chat.enroll_code.isPreview
resp.is_trial = chat.is_trial
resp.kind = message.lesson_to_answer.kind
resp.sub_kind = message.lesson_to_answer.sub_kind
resp.lesson = message.lesson_to_answer.lesson
resp.unitLesson = message.lesson_to_answer
resp.course = message.chat.enroll_code.courseUnit.course
resp.author = self.request.user
resp.activity = activity
resp.save()
if not message.timestamp:
serializer.save(content_id=resp.id,
timestamp=timezone.now(),
chat=chat,
response_to_check=resp)
else:
serializer.save()
return
if (is_in_node('GET_NEW_FAQ_TITLE') or is_in_node('GET_NEW_FAQ_DESCRIPTION')) \
and message_is_response and message.sub_kind == 'add_faq':
text = self.request.data.get('text')
faq_request = message.content
if is_in_node('GET_NEW_FAQ_TITLE'):
faq_request.title = text
else:
faq_request.text = text
faq_request.save()
faq_request.notify_instructors()
message.text = text
message.save()
if is_in_node('GET_FOR_FAQ_ANSWER'):
message.text = self.request.data.get('option', 'help')
message.save()
if is_in_node('GET_UNDERSTANDING'):
message.text = self.request.data.get('option', 'no')
message.save()
if message.input_type == 'options' and message.kind != 'button':
if (message.contenttype == 'uniterror'
and 'selected' in self.request.data):
# user selected error model
message.chat = chat
try:
selected = self.request.data.get('selected')[str(
message.id)]['errorModel']
except KeyError:
selected = []
uniterror = message.content
uniterror.save_response(user=self.request.user,
response_list=selected)
message.text = message.get_html()
message.save()
if not message.chat.is_live:
get_additional_messages(uniterror.response, chat, selected)
chat.next_point = self.next_handler.next_point(
current=message.content,
chat=chat,
message=message,
request=self.request)
chat.last_modify_timestamp = timezone.now()
chat.save()
serializer = self.get_serializer(message,
data=self.request.data)
serializer.is_valid()
serializer.save(chat=chat)
elif (message.kind == 'add_faq' and message.sub_kind == 'add_faq') or \
(message.kind == 'get_faq_answer' and message.sub_kind == 'get_faq_answer') or \
(message.kind == 'ask_faq_understanding'):
pass
elif (message.contenttype == 'unitlesson'
and message.kind == 'faqs'
and 'selected' in self.request.data):
message.chat = chat
try:
selected = self.request.data.get('selected')[str(
message.id)]['faqModel']
except KeyError:
selected = []
if selected:
c_faq_data().update_one(
{
"chat_id": chat.id,
"ul_id": message.content.id
}, {
"$set": {
"faqs": {
str(faq_id): {
'status': {
"done": False
}
}
for faq_id in selected
}
}
})
# Save presented in message FAQs to avoid futher bugs in wrong dadta selection
message.text = message.get_html()
message.save()
chat.next_point = self.next_handler.next_point(
current=message.content,
chat=chat,
message=message,
request=self.request)
chat.last_modify_timestamp = timezone.now()
chat.save()
serializer = self.get_serializer(message,
data=self.request.data)
serializer.is_valid()
serializer.save(chat=chat)
elif message.contenttype == 'NoneType' and message.kind == 'abort':
# user selected abort model
message.chat = chat
try:
selected = self.request.data.get('selected')[str(
message.id)]['errorModel']
except KeyError:
selected = []
if not message.chat.is_live and selected:
get_help_messages(chat)
chat.next_point = self.next_handler.next_point(
current=message.content,
chat=chat,
message=message,
request=self.request)
chat.last_modify_timestamp = timezone.now()
chat.save()
serializer.save(chat=chat)
elif message.content_id and not message.student_error:
# confidence and selfeval
message.chat = chat
opt_data = self.request.data.get('option')
resp = message.content
if chat.state and chat.state.fsmNode.node_name_is_one_of(
'GET_CONFIDENCE', 'ADDITIONAL_GET_CONFIDENCE'):
resp.confidence = opt_data
text = resp.get_confidence_display()
else:
resp.selfeval = opt_data
text = resp.get_selfeval_display()
# FIX if response was correct - user will not go to `else` section and response status should be set
if not resp.is_locked:
resp.status = EVAL_TO_STATUS_MAP.get(opt_data)
message.text = text
resp.save()
chat.next_point = message
chat.last_modify_timestamp = timezone.now()
chat.save()
serializer.save(content_id=resp.id, chat=chat, text=text)
else:
#
message.chat = chat
selfeval = self.request.data.get('option')
resp = message.student_error
resp.status = selfeval
resp.save()
# CRITICAL note - do not override response status
# pass status to main response ONLY in case of absence the status at all
# is_locked status is setted in TRANSITION node in chat FSM
if not resp.response.is_locked:
resp.response.status = selfeval
resp.response.save()
chat.next_point = message
chat.last_modify_timestamp = timezone.now()
chat.save()
message.text = selfeval
message.save()
serializer.save(text=selfeval, chat=chat)
if message.kind == 'button' and not (message.content_id
and message.content
and message.content.sub_kind):
chat.last_modify_timestamp = timezone.now()
chat.next_point = self.next_handler.next_point(
current=message.content,
chat=chat,
message=message,
request=self.request,
)
chat.save()
class Z(object):
x = di.depends(object, 'x')
class User:
value = di.depends(self.Consumer, 'consumer')
class SmsHandler:
twilio_gateway = injections.depends(TwilioGateway)
async def send_sms(self, request):
await self.twilio_gateway.send_sms("test message")
return web.json_response({"status": "ok"})
class ChatInitialView(LoginRequiredMixin, View):
"""
Entry point for Chat UI.
"""
next_handler = injections.depends(ProgressHandler)
template_name = 'chat/main_view.html'
tester_mode = False
@staticmethod
def get_back_url(*args, **kwargs):
"""
Return link to back page - by default - lms course page.
"""
return "Course", reverse('lms:course_view', kwargs=dict(course_id=kwargs['courseUnit'].course.id))
@staticmethod
def get_enroll_code_object(enroll_key):
"""
Return EnrollUnitCode object.
:param enroll_key: enroll code
:return: EnrollUnitCode instance
"""
return get_object_or_404(EnrollUnitCode, enrollCode=enroll_key, isPreview=False)
@staticmethod
def get_will_learn_need_know(unit, courseUnit):
"""
Steps to define Concepts for Will learn and Need to know:
`/ct/teach/courses/:id/units/:id/`
`/ct/teach/courses/:id/units/:id/lessons/`
`/ct/teach/courses/:id/units/:id/lessons/:id/`
`/ct/teach/courses/:id/units/:id/lessons/:id/concepts/`
`Will learn`
* We want all Concepts that Defines or Tests Understanding of Lesson
* Choose Defines or Test for Concept
`Need to know`
* We want all Concepts that Assumes a Lesson
* Choose Assumes for Concept
"""
will_learn = set()
need_to_know = set()
for unit_lesson in unit.get_exercises():
# QuerySet for "You will learn" and "Need to know" section
containers_with_querysets = (
(will_learn, ConceptLink.objects.filter(
Q(lesson=unit_lesson.lesson),
(Q(relationship=ConceptLink.DEFINES) | Q(relationship=ConceptLink.TESTS)))
if unit_lesson.unit.is_show_will_learn else ()),
(need_to_know, ConceptLink.objects.filter(
lesson=unit_lesson.lesson, relationship=ConceptLink.ASSUMES))
)
for contaner, qs in containers_with_querysets:
for concept_link in qs:
title = concept_link.concept.title
if concept_link.lesson.url:
url = concept_link.lesson.url
else:
ul = UnitLesson.objects.filter(
lesson__concept=concept_link.concept
).values('id').first()
if ul:
url = reverse(
'ct:study_concept', args=(courseUnit.course.id, unit.id, ul['id'])
)
if url:
contaner.add((title, url))
return will_learn, need_to_know
def get_or_init_chat(self, enroll_code, chat_id):
"""Get chat by id.
Logic of this method is:
* try to cast recieved ID to int
* if gets an error while casting:
* set i_chat_id = 0 if ValueError
* set i_chat_id = None if TypeError
* if i_chat_id:
* try to get chat by id
* if i_chat_id is None:
* restore last session
* if i_chat_id == 0:
* create new chat
:return i_chat_id and chat
"""
chat = None
courseUnit = enroll_code.courseUnit
try:
# try to convert chat_id to int
i_chat_id = int(chat_id)
except ValueError:
# if error - set i_chat_id to zero - it means create new chat
i_chat_id = 0
except TypeError:
i_chat_id = None
if i_chat_id: # chat_id is passed - restore chat by id
chat = self.get_chat(self.request, enroll_code, user=self.request.user, id=i_chat_id)
elif i_chat_id is None: # chat_id not passed - restore last session
chat = self.get_chat(self.request, enroll_code, user=self.request.user)
elif i_chat_id == 0 and enroll_code: # create new session
chat = self.create_new_chat(self.request, enroll_code, courseUnit)
if chat and not chat.state:
chat.next_point = None
chat.save()
return chat, i_chat_id
@staticmethod
def check_course_not_published_and_user_is_not_instructor(request, courseUnit):
"""
This method checks that course is not published and user is not instructor.
:param request: request
:param courseUnit: course unit
:return: True | False
"""
return (
not courseUnit.is_published() and
not User.objects.filter(
id=request.user.id,
role__role=Role.INSTRUCTOR,
role__course=courseUnit.course
).exists()
)
@staticmethod
def user_enrolled(request, courseUnit):
return Role.objects.filter(
user=request.user.id, course=courseUnit.course, role=Role.ENROLLED
)
def create_new_chat(self, request, enroll_code, courseUnit, **kwargs):
# TODO user_trial_mode = self.define_user_trial_mode(request, courseUnit)
defaults = dict(
user=request.user,
enroll_code=enroll_code,
instructor=courseUnit.course.addedBy,
is_preview=False,
is_trial=False
)
defaults.update(kwargs)
chat = Chat(**defaults)
chat.save()
return chat
def define_user_trial_mode(self, request, course_unit):
"""
Define trial mode for enrolled user depending on course's trial mode settings
If mode still is undefined get percent of user's trial mode
and if count of them is less than 50% set trial mode randomly,
Arguments:
request (obj): Django Request
course_unit (obj): Model object
Return (bool): Existing or newly added trial mode
"""
user = request.user
user_enrolled = self.user_enrolled(request, course_unit).first()
trial_mode = False
if user_enrolled: # if user's role exists
# course is trial and role.trial_mode has been set
if course_unit.course.trial and user_enrolled.trial_mode is None:
# get users enrolled to this course
enrolled_users = Role.objects.filter(
course_id=course_unit.course.id,
role=Role.ENROLLED
)
# count the percent of users in trial mode
trial_mode_prsnt = float(enrolled_users.filter(trial_mode=True).count()) / enrolled_users.count() * 100
roles_to_update = Role.objects.filter(
user=user.id, role__in=[Role.ENROLLED, Role.SELFSTUDY], course_id=course_unit.course.id)
# if the percent is not exceeded get random value for trial mode
if trial_mode_prsnt < 50: # hardcoded but can be implemented for adjusting from admin
trial_mode = random.choice([True, False])
roles_to_update.update(trial_mode=trial_mode)
else:
trial_mode = bool(user_enrolled.trial_mode) # course is not trial or role has already been set
return trial_mode
@staticmethod
def check_unitlessons_with_order_null_exists(unit):
return unit.unitlesson_set.filter(order__isnull=False).exists()
@staticmethod
def get_chat(request, enroll_code, **kwargs):
kw = dict(
enroll_code=enroll_code, user=request.user,
)
kw.update(kwargs)
return Chat.objects.filter(**kw).first()
def get_chat_sessions(self, request, enroll_code, courseUnit):
return Chat.objects.filter(
enroll_code=enroll_code,
user=request.user,
instructor=courseUnit.course.addedBy,
is_live=False,
is_test=self.tester_mode,
is_preview=False
).annotate(
not_finished=Case(
When(state_id__isnull=True, then=0),
When(state_id__isnull=False, then=1),
default=0,
output_field=IntegerField())
).order_by('-not_finished', '-last_modify_timestamp')
def get(self, request, enroll_key, chat_id=None):
enroll_code = self.get_enroll_code_object(enroll_key)
courseUnit = enroll_code.courseUnit
unit = courseUnit.unit
if not self.check_unitlessons_with_order_null_exists(unit):
return render(
request,
'lti/error.html',
{'message': 'There are no Lessons to display for that Courselet.'}
)
if self.check_course_not_published_and_user_is_not_instructor(request, courseUnit):
return render(
request,
'lti/error.html',
{'message': 'This Courselet is not published yet or you have no permisions to open it.'}
)
if not self.user_enrolled(request, courseUnit):
enrolling = Role.objects.get_or_create(user=request.user,
course=courseUnit.course,
role=Role.SELFSTUDY)[0]
enrolling.role = Role.ENROLLED
enrolling.save()
# new chat will be created only if chat_id is 0
chat, i_chat_id = self.get_or_init_chat(enroll_code, chat_id)
lessons = unit.get_exercises()
if chat and chat.is_live:
lessons = Message.objects.filter(
chat=chat,
contenttype='unitlesson',
kind='orct',
type='message',
owner=request.user,
)
will_learn, need_to_know = self.get_will_learn_need_know(unit, courseUnit)
try:
instructor_icon = courseUnit.course.addedBy.instructor.icon_url
except AttributeError:
instructor_icon = ''
chat_sessions = self.get_chat_sessions(request, enroll_code, courseUnit)
back_url_name, back_url = self.get_back_url(**locals())
last_history = chat_sessions.filter(state__isnull=True, progress=100).order_by('id').last()
updated_thread_id = None
if last_history:
updated_thread_id = get_updated_thread_id(last_history)
return render(
request,
self.template_name,
{
'chat_sessions_exists': len(chat_sessions), # mark for frontend
'chat_sessions': chat_sessions, # .exclude(id=chat.id), # TODO: UNCOMMENT this line to exclude current chat from sessions
'most_recent_complete_session': last_history,
'updated_thread_id': updated_thread_id or -1,
'chat': chat,
'chat_id': i_chat_id,
'course': courseUnit.course,
'instructor_icon': instructor_icon,
'unit': unit,
'img_url': unit.img_url,
'small_img_url': unit.small_img_url,
'will_learn': will_learn,
'need_to_know': need_to_know,
'lessons': lessons,
'lesson_cnt': len(lessons),
'duration': len(lessons) * 3,
'fsmstate': chat.state if chat else None,
'enroll_code': enroll_key,
# 'next_point': next_point,
'back_url': back_url,
'back_url_name': back_url_name
}
)
class X(object):
a = di.depends(object, 'a')
class Girl:
father = di.depends(User, 'user')
class Consumer:
value = di.depends(str, 'name')
def hello(self):
return "Hello {}!".format(self.value)
class Consumer:
a = di.depends(int)
b = di.depends(int)
class MessageSerializer(serializers.ModelSerializer):
"""
Message serializer.
"""
next_handler = injections.depends(ProgressHandler)
input = serializers.SerializerMethodField()
# errors = serializers.CharField(source='get_errors', read_only=True)
addMessages = serializers.SerializerMethodField()
nextMessagesUrl = serializers.CharField(source='get_next_url',
read_only=True)
class Meta:
model = Message
fields = (
'id',
'input',
'addMessages',
'nextMessagesUrl',
# 'errors',
)
def set_group(self, obj):
try:
getattr(self, 'qs')
except AttributeError:
self.qs = [obj]
if obj.timestamp:
current = obj
for message in obj.chat.message_set.filter(
timestamp__gt=obj.timestamp):
if self.next_handler.group_filter(current, message):
current = message
self.qs.append(message)
def get_input(self, obj):
"""
Getting description for next message.
"""
self.set_group(obj)
incl_msg = []
sub_kind = None
for i in self.qs:
if i.contenttype == 'uniterror' or i.kind == 'abort':
incl_msg.append(i.id)
if i.contenttype == 'unitlesson' and i.content:
if i.content.lesson.sub_kind == 'choices':
sub_kind = 'choices'
incl_msg.append(i.id)
if i.content.sub_kind == 'numbers':
sub_kind = 'numbers'
if i.content.lesson.sub_kind == 'equation':
sub_kind = 'equation'
elif i.content.lesson.sub_kind == 'canvas':
sub_kind = 'canvas'
# Add UnitLesson id for JS to check during selection validation
if i.contenttype == 'unitlesson' and i.kind == 'faqs':
incl_msg.append(i.id)
input_data = {
'type':
obj.get_next_input_type(),
'url':
obj.get_next_url(),
'options':
obj.get_options(),
'doWait':
obj.chat.state.fsmNode.name.startswith('WAIT_')
if obj.chat.state else False,
'includeSelectedValuesFromMessages':
incl_msg,
}
if i.contenttype == 'unitlesson':
if sub_kind == 'numbers':
input_data[
'html'] = '<input type="number" name="{}" value="{}">'.format(
"text",
0,
)
elif sub_kind == 'canvas':
input_data['html'] = '<input type="hidden" />'
input_data['subType'] = sub_kind
if input_data['doWait']:
input_data['html'] = ' '
elif not obj.chat.next_point:
chat_id = obj.chat.enroll_code.courseUnit.course.id
course_url = reverse('lms:course_view',
kwargs={'course_id': chat_id})
html = f"""
<button class="btn chat-option"
data-option-value="close-courselet"
onclick="window.location.href='{course_url}'">
Close courselet
</button>
""" if settings.SHOW_CLOSE_BTN and obj.chat.resources_is_done(
) else ' '
input_data['html'] = html
return InputSerializer().to_representation(input_data)
def get_addMessages(self, obj):
self.set_group(obj)
return InternalMessageSerializer(many=True).to_representation(self.qs)
class ChatInitialView(View):
"""
Entry point for Chat UI.
"""
next_handler = injections.depends(ProgressHandler)
@method_decorator(login_required)
def get(self, request, enroll_key):
enroll_code = get_object_or_404(EnrollUnitCode, enrollCode=enroll_key)
courseUnit = enroll_code.courseUnit
unit = courseUnit.unit
if not unit.unitlesson_set.filter(order__isnull=False).exists():
return render(request, 'lti/error.html', {
'message':
'There are no Lessons to display for that Courselet.'
})
if (not courseUnit.is_published() and not User.objects.filter(
id=request.user.id,
role__role=Role.INSTRUCTOR,
role__course=courseUnit.course).exists()):
return render(request, 'lti/error.html',
{'message': 'This Courselet is not published yet.'})
if not Role.objects.filter(user=request.user.id,
course=courseUnit.course,
role=Role.ENROLLED):
enrolling = Role.objects.get_or_create(user=request.user,
course=courseUnit.course,
role=Role.SELFSTUDY)[0]
enrolling.role = Role.ENROLLED
enrolling.save()
chat = Chat.objects.filter(enroll_code=enroll_code,
user=request.user).first()
if not chat and enroll_key:
chat = Chat(user=request.user,
enroll_code=enroll_code,
instructor=courseUnit.course.addedBy)
chat.save(request)
if chat.message_set.count() == 0:
next_point = self.next_handler.start_point(unit=unit,
chat=chat,
request=request)
else:
next_point = chat.next_point
lessons = unit.get_exercises()
will_learn = set()
need_to_know = set()
for unit_lesson in unit.get_exercises():
# QuerySet for "You will learn" and "Need to know" section
containers_with_querysets = (
(will_learn,
ConceptLink.objects.filter(
Q(lesson=unit_lesson.lesson),
(Q(relationship=ConceptLink.DEFINES)
| Q(relationship=ConceptLink.TESTS)))),
(need_to_know,
ConceptLink.objects.filter(lesson=unit_lesson.lesson,
relationship=ConceptLink.ASSUMES)))
for contaner, qs in containers_with_querysets:
for concept_link in qs:
title = concept_link.concept.title
if concept_link.lesson.url:
url = concept_link.lesson.url
else:
ul = UnitLesson.objects.filter(
lesson__concept=concept_link.concept).values(
'id').first()
if ul:
url = reverse('ct:study_concept',
args=(courseUnit.course.id, unit.id,
ul['id']))
if url:
contaner.add((title, url))
return render(
request, 'chat/main_view.html', {
'chat_id': chat.id,
'course': courseUnit.course,
'unit': unit,
'img_url': unit.img_url,
'small_img_url': unit.small_img_url,
'will_learn': will_learn,
'need_to_know': need_to_know,
'chat_id': chat.id,
'lessons': lessons,
'lesson_cnt': len(lessons),
'duration': len(lessons) * 3,
'next_point': next_point,
'fsmstate': chat.state,
})