def post_add_to_question_group(self):
try:
question_id = long(self.request.get('question_id'))
question_dto = QuestionDAO.load(question_id)
if question_dto is None:
raise ValueError()
except ValueError:
transforms.send_json_response(
self, 500, 'Invalid question id.',
{'question-id': self.request.get('question_id')}
)
return
try:
group_id = long(self.request.get('group_id'))
group_dto = QuestionGroupDAO.load(group_id)
if group_dto is None:
raise ValueError()
except ValueError:
transforms.send_json_response(
self, 500, 'Invalid question group id.',
{'group-id': self.request.get('group_id')}
)
return
weight = self.request.get('weight')
try:
float(weight)
except ValueError:
transforms.send_json_response(
self, 500, 'Invalid weight. Must be a numeric value.', {
'weight': weight})
return
group_dto.add_question(question_id, weight)
QuestionGroupDAO.save(group_dto)
transforms.send_json_response(
self,
200,
'%s added to %s.' % (
question_dto.description, group_dto.description
),
{
'group-id': group_dto.id,
'question-id': question_dto.id
}
)
return
def validate(self, question_group_dict, key):
"""Validate the question group data sent from the form."""
errors = []
assert question_group_dict['version'] == self.SCHEMA_VERSION
if not question_group_dict['description'].strip():
errors.append('The question group must have a description.')
descriptions = {
question_group.description
for question_group in QuestionGroupDAO.get_all()
if not key or question_group.id != long(key)
}
if question_group_dict['description'] in descriptions:
errors.append('The description must be different '
'from existing question groups.')
if not question_group_dict['items']:
errors.append(
'The question group must contain at least one question.')
items = question_group_dict['items']
for index in range(0, len(items)):
item = items[index]
try:
float(item['weight'])
except ValueError:
errors.append('Item %s must have a numeric weight.' %
(index + 1))
return errors
def list_question_groups(self):
"""Prepare a list of question groups."""
if not filer.is_editable_fs(self.app_context):
return safe_dom.NodeList()
all_questions = QuestionDAO.get_all()
output = safe_dom.NodeList()
if all_questions:
output.append(
safe_dom.Element('a',
className='gcb-button gcb-pull-right',
href='dashboard?action=add_question_group').
add_text('Add Question Group')).append(
safe_dom.Element('div',
style='clear: both; padding-top: 2px;'))
output.append(safe_dom.Element('h3').add_text('Question Groups'))
# TODO(jorr): Hook this into the datastore
all_question_groups = QuestionGroupDAO.get_all()
if all_question_groups:
ol = safe_dom.Element('ol')
for question_group in all_question_groups:
edit_url = 'dashboard?action=edit_question_group&key=%s' % (
question_group.id)
li = safe_dom.Element('li')
li.add_text(question_group.description).add_child(
safe_dom.Entity(' ')).add_child(
safe_dom.Element('a',
href=edit_url).add_text('[Edit]'))
ol.add_child(li)
output.append(ol)
else:
output.append(safe_dom.Element('blockquote').add_text('< none >'))
return output
def put(self):
"""Store a question group in the datastore in response to a PUT."""
request = transforms.loads(self.request.get('request'))
key = request.get('key')
if not self.assert_xsrf_token_or_fail(
request, self.XSRF_TOKEN, {'key': key}):
return
if not CourseOutlineRights.can_edit(self):
transforms.send_json_response(
self, 401, 'Access denied.', {'key': key})
return
payload = request.get('payload')
question_group_dict = transforms.json_to_dict(
transforms.loads(payload),
self.get_schema().get_json_schema_dict())
validation_errors = self.validate(question_group_dict, key)
if validation_errors:
self.validation_error('\n'.join(validation_errors), key=key)
return
assert self.SCHEMA_VERSION == question_group_dict.get('version')
if key:
question_group = QuestionGroupDTO(key, question_group_dict)
else:
question_group = QuestionGroupDTO(None, question_group_dict)
key_after_save = QuestionGroupDAO.save(question_group)
transforms.send_json_response(
self, 200, 'Saved.', payload_dict={'key': key_after_save})
def validate(self, question_group_dict, key):
"""Validate the question group data sent from the form."""
errors = []
assert question_group_dict['version'] == self.SCHEMA_VERSION
if not question_group_dict['description'].strip():
errors.append('The question group must have a description.')
descriptions = {question_group.description for question_group
in QuestionGroupDAO.get_all()
if not key or question_group.id != long(key)}
if question_group_dict['description'] in descriptions:
errors.append('The description must be different '
'from existing question groups.')
if not question_group_dict['items']:
errors.append(
'The question group must contain at least one question.')
items = question_group_dict['items']
for index in range(0, len(items)):
item = items[index]
try:
float(item['weight'])
except ValueError:
errors.append(
'Item %s must have a numeric weight.' % (index + 1))
return errors
def get(self):
"""Respond to the REST GET verb with the contents of the group."""
key = self.request.get('key')
if not CourseOutlineRights.can_view(self):
transforms.send_json_response(
self, 401, 'Access denied.', {'key': key})
return
if key:
question_group = QuestionGroupDAO.load(key)
version = question_group.dict.get('version')
if self.SCHEMA_VERSION != version:
transforms.send_json_response(
self, 403, 'Cannot edit a Version %s group.' % version,
{'key': key})
return
payload_dict = question_group.dict
else:
payload_dict = {
'version': self.SCHEMA_VERSION,
'items': [{'weight': ''}, {'weight': ''}, {'weight': ''}]}
transforms.send_json_response(
self, 200, 'Success',
payload_dict=payload_dict,
xsrf_token=XsrfTokenManager.create_xsrf_token(self.XSRF_TOKEN))
def post_add_to_question_group(self):
try:
question_id = long(self.request.get('question_id'))
question_dto = QuestionDAO.load(question_id)
if question_dto is None:
raise ValueError()
except ValueError:
transforms.send_json_response(
self, 500, 'Invalid question id.',
{'question-id': self.request.get('question_id')})
return
try:
group_id = long(self.request.get('group_id'))
group_dto = QuestionGroupDAO.load(group_id)
if group_dto is None:
raise ValueError()
except ValueError:
transforms.send_json_response(
self, 500, 'Invalid question group id.',
{'group-id': self.request.get('group_id')})
return
weight = self.request.get('weight')
try:
float(weight)
except ValueError:
transforms.send_json_response(
self, 500, 'Invalid weight. Must be a numeric value.',
{'weight': weight})
return
group_dto.add_question(question_id, weight)
QuestionGroupDAO.save(group_dto)
transforms.send_json_response(
self, 200, '%s added to %s.' %
(question_dto.description, group_dto.description), {
'group-id': group_dto.id,
'question-id': question_dto.id
})
return
def create_group(self, description, question_ids):
group = {
'version': QuestionDAO.VERSION,
'description': description,
'introduction': '',
'items': [{
'question': str(x),
'weight': 1.0
} for x in question_ids]
}
return QuestionGroupDAO.create_question_group(group)
def delete(self):
"""Delete the question_group in response to REST request."""
key = self.request.get('key')
if not self.assert_xsrf_token_or_fail(
self.request, self.XSRF_TOKEN, {'key': key}):
return
if not CourseOutlineRights.can_delete(self):
transforms.send_json_response(
self, 401, 'Access denied.', {'key': key})
return
question_group = QuestionGroupDAO.load(key)
if not question_group:
transforms.send_json_response(
self, 404, 'Question Group not found.', {'key': key})
return
QuestionGroupDAO.delete(question_group)
transforms.send_json_response(self, 200, 'Deleted.')
def _get_questions_by_question_id(cls, questions_by_usage_id):
ret = {}
ret['single'] = {}
ret['grouped'] = {}
for question in questions_by_usage_id.values():
question_single = QuestionDAO.load(question['id'])
if question_single:
ret['single'][question['id']] = question_single
else:
question_group = QuestionGroupDAO.load(question['id'])
if question_group:
ret['grouped'][question['id']] = {}
for item in question_group.items:
ret['grouped'][question['id']][item['question']] = QuestionDAO.load(item['question'])
return ret
def list_question_groups(self):
"""Prepare a list of question groups."""
if not filer.is_editable_fs(self.app_context):
return safe_dom.NodeList()
all_questions = QuestionDAO.get_all()
output = safe_dom.NodeList()
if all_questions:
output.append(
safe_dom.Element(
'a', className='gcb-button gcb-pull-right',
href='dashboard?action=add_question_group'
).add_text('Add Question Group')
).append(
safe_dom.Element(
'div', style='clear: both; padding-top: 2px;'
)
)
output.append(
safe_dom.Element('h3').add_text('Question Groups')
)
# TODO(jorr): Hook this into the datastore
all_question_groups = QuestionGroupDAO.get_all()
if all_question_groups:
ol = safe_dom.Element('ol')
for question_group in all_question_groups:
edit_url = 'dashboard?action=edit_question_group&key=%s' % (
question_group.id)
li = safe_dom.Element('li')
li.add_text(
question_group.description
).add_child(
safe_dom.Entity(' ')
).add_child(
safe_dom.Element('a', href=edit_url).add_text('[Edit]'))
ol.add_child(li)
output.append(ol)
else:
output.append(safe_dom.Element('blockquote').add_text('< none >'))
return output
def _get_questions_by_question_id(cls, questions_by_usage_id):
''' Retrieves every question in the course returning
them in a dict: { id:questionDAO, ... }
@param questions_by_usage_id.values() is a dict:
{unit, lesson, sequence, weight, quid}
'''
ret = {}
ret['single'] = {}
ret['grouped'] = {}
for question in questions_by_usage_id.values():
question_single = QuestionDAO.load(question['id'])
if question_single:
ret['single'][question['id']] = question_single
else:
question_group = QuestionGroupDAO.load(question['id'])
if question_group:
ret['grouped'][question['id']] = {}
for item in question_group.items:
ret['grouped'][question['id']][item['question']] = QuestionDAO.load(item['question'])
return ret
def _get_questions_by_question_id(cls, questions_by_usage_id):
''' Retrieves every question in the course returning
them in a dict: { id:questionDAO, ... }
@param questions_by_usage_id.values() is a dict:
{unit, lesson, sequence, weight, quid}
'''
ret = {}
ret['single'] = {}
ret['grouped'] = {}
for question in questions_by_usage_id.values():
question_single = QuestionDAO.load(question['id'])
if question_single:
ret['single'][question['id']] = question_single
else:
question_group = QuestionGroupDAO.load(question['id'])
if question_group:
ret['grouped'][question['id']] = {}
for item in question_group.items:
ret['grouped'][question['id']][
item['question']] = QuestionDAO.load(
item['question'])
return ret
def validate_group_description(self, group_description, errors):
descriptions = [gr.description for gr in QuestionGroupDAO.get_all()]
if group_description in descriptions:
errors.append('Non-unique group description.')
