def handle_ajax(self, dispatch, data):
"""
This is called by courseware.module_render, to handle an AJAX call.
`data` is request.POST.
Returns a json dictionary:
{ 'progress_changed' : True/False,
'progress' : 'none'/'in_progress'/'done',
<other request-specific values here > }
"""
handlers = {
'hint_button': self.hint_button,
'problem_get': self.get_problem,
'problem_check': self.check_problem,
'problem_reset': self.reset_problem,
'problem_save': self.save_problem,
'problem_show': self.get_answer,
'score_update': self.update_score,
'input_ajax': self.handle_input_ajax,
'ungraded_response': self.handle_ungraded_response
}
_ = self.runtime.service(self, "i18n").ugettext
generic_error_message = _(
"We're sorry, there was an error with processing your request. "
"Please try reloading your page and trying again."
)
not_found_error_message = _(
"The state of this problem has changed since you loaded this page. "
"Please refresh your page."
)
if dispatch not in handlers:
return 'Error: {} is not a known capa action'.format(dispatch)
before = self.get_progress()
try:
result = handlers[dispatch](data)
except NotFoundError as err:
_, _, traceback_obj = sys.exc_info() # pylint: disable=redefined-outer-name
raise ProcessingError(not_found_error_message), None, traceback_obj
except Exception as err:
_, _, traceback_obj = sys.exc_info() # pylint: disable=redefined-outer-name
raise ProcessingError(generic_error_message), None, traceback_obj
after = self.get_progress()
result.update({
'progress_changed': after != before,
'progress_status': Progress.to_js_status_str(after),
'progress_detail': Progress.to_js_detail_str(after),
})
return json.dumps(result, cls=ComplexEncoder)
def handle_ajax(self, dispatch, data):
"""
This is called by courseware.module_render, to handle an AJAX call.
`data` is request.POST.
Returns a json dictionary:
{ 'progress_changed' : True/False,
'progress' : 'none'/'in_progress'/'done',
<other request-specific values here > }
"""
handlers = {
'problem_get': self.get_problem,
'problem_check': self.check_problem,
'problem_reset': self.reset_problem,
'problem_save': self.save_problem,
'problem_show': self.get_answer,
'score_update': self.update_score,
'input_ajax': self.handle_input_ajax,
'ungraded_response': self.handle_ungraded_response
}
if dispatch not in handlers:
return 'Error'
before = self.get_progress()
try:
result = handlers[dispatch](data)
except Exception as err:
_, _, traceback_obj = sys.exc_info()
raise ProcessingError(err.message, traceback_obj)
after = self.get_progress()
result.update({
'progress_changed': after != before,
'progress_status': Progress.to_js_status_str(after),
})
return json.dumps(result, cls=ComplexEncoder)
def handle_ajax(self, dispatch, data):
"""
This is called by courseware.module_render, to handle an AJAX call.
`data` is request.POST.
Returns a json dictionary:
{ 'progress_changed' : True/False,
'progress' : 'none'/'in_progress'/'done',
<other request-specific values here > }
"""
handlers = {
'hint_button': self.hint_button,
'problem_get': self.get_problem,
'problem_check': self.submit_problem,
'problem_reset': self.reset_problem,
'problem_save': self.save_problem,
'problem_show': self.get_answer,
'problem_start': self.start_problem,
'score_update': self.update_score,
'input_ajax': self.handle_input_ajax,
'ungraded_response': self.handle_ungraded_response
}
_ = self.runtime.service(self, "i18n").ugettext
generic_error_message = _(
"We're sorry, there was an error with processing your request. "
"Please try reloading your page and trying again.")
not_found_error_message = _(
"The state of this problem has changed since you loaded this page. "
"Please refresh your page.")
time_expired_error_message = _(
"This problem's time has expired. Please refresh your page.")
if dispatch not in handlers:
return 'Error: {} is not a known capa action'.format(dispatch)
before = self.get_progress()
before_attempts = self.attempts
try:
result = handlers[dispatch](data)
except NotFoundError:
log.info(
"Unable to find data when dispatching %s to %s for user %s",
dispatch, self.scope_ids.usage_id, self.scope_ids.user_id)
_, _, traceback_obj = sys.exc_info() # pylint: disable=redefined-outer-name
raise ProcessingError(not_found_error_message), None, traceback_obj
except TimeExpiredError:
dummy1, dummy2, traceback_obj = sys.exc_info()
raise ProcessingError(time_expired_error_message), traceback_obj
except Exception:
log.exception(
"Unknown error when dispatching %s to %s for user %s",
dispatch, self.scope_ids.usage_id, self.scope_ids.user_id)
_, _, traceback_obj = sys.exc_info() # pylint: disable=redefined-outer-name
raise ProcessingError(generic_error_message), None, traceback_obj
after = self.get_progress()
after_attempts = self.attempts
progress_changed = (after != before) or (after_attempts !=
before_attempts)
curr_score, total_possible = self.get_display_progress()
result.update({
'progress_changed': progress_changed,
'current_score': curr_score,
'total_possible': total_possible,
'attempts_used': after_attempts,
})
return json.dumps(result, cls=ComplexEncoder)
def handle_ajax(self, dispatch, data):
"""
This is called by courseware.module_render, to handle an AJAX call.
`data` is request.POST.
Returns a json dictionary:
{ 'progress_changed' : True/False,
'progress' : 'none'/'in_progress'/'done',
<other request-specific values here > }
"""
# self.score is initialized in self.lcp but in this method is accessed before self.lcp so just call it first.
self.lcp # lint-amnesty, pylint: disable=pointless-statement
handlers = {
'hint_button': self.hint_button,
'problem_get': self.get_problem,
'problem_check': self.submit_problem,
'problem_reset': self.reset_problem,
'problem_save': self.save_problem,
'problem_show': self.get_answer,
'score_update': self.update_score,
'input_ajax': self.handle_input_ajax,
'ungraded_response': self.handle_ungraded_response
}
_ = self.runtime.service(self, "i18n").ugettext
generic_error_message = _(
"We're sorry, there was an error with processing your request. "
"Please try reloading your page and trying again."
)
not_found_error_message = _(
"The state of this problem has changed since you loaded this page. "
"Please refresh your page."
)
if dispatch not in handlers:
return f'Error: {dispatch} is not a known capa action'
before = self.get_progress()
before_attempts = self.attempts
try:
result = handlers[dispatch](data)
except NotFoundError as ex:
log.info(
"Unable to find data when dispatching %s to %s for user %s",
dispatch,
self.scope_ids.usage_id,
self.scope_ids.user_id
)
_, _, traceback_obj = sys.exc_info()
raise ProcessingError(not_found_error_message).with_traceback(traceback_obj) from ex
except Exception as ex: # lint-amnesty, pylint: disable=broad-except
log.exception(
"Unknown error when dispatching %s to %s for user %s",
dispatch,
self.scope_ids.usage_id,
self.scope_ids.user_id
)
_, _, traceback_obj = sys.exc_info()
raise ProcessingError(generic_error_message).with_traceback(traceback_obj) from ex
after = self.get_progress()
after_attempts = self.attempts
progress_changed = (after != before) or (after_attempts != before_attempts)
curr_score, total_possible = self.get_display_progress()
result.update({
'progress_changed': progress_changed,
'current_score': curr_score,
'total_possible': total_possible,
'attempts_used': after_attempts,
})
return json.dumps(result, cls=ComplexEncoder)
