def get_question(question_id):
"""Returns a specific question, by its question ID, which is passed
in as a parameter to the call.
Keyword arguments:
question_id -- the identifier of the question being interacted with
"""
question = Question.query.filter_by(id=question_id).first()
if not question:
abort(404)
return json_response(question.to_dict())
def delete_question(question_id):
"""Handles requests to delete a question, by its ID.
Keyword arguments:
question_id -- the identifier of the question being interacted with
"""
question = Question.query.filter_by(id=question_id).first()
if not question:
abort(404)
question.delete()
return json_response({}, 204)
def update_question(question_id):
"""Handles requests to update a specific question, identified
by that questions ID, which is passed in as a parameter to the
call.
Keyword arguments:
question_id -- the identifier of the question being interacted with
"""
data = json.loads(request.data)
question = Question.query.filter_by(id=question_id).first()
if not question:
abort(404)
question.update(data)
return json_response({ 'result': question.to_dict(), 'timestamp': str(datetime.now()) }, 200)
def create_question():
"""Creates and returns the question that adheres to the content
of the request. If there is an error, an error response will be
returned instead.
"""
data = json.loads(request.data)
if not ('text' in data):
raise Exception('Error: Question text is required.')
if not ('answer' in data):
raise Exception('Error: Question answer is required.')
if not ('choices' in data):
raise Exception('Error: Question answer choices are required.')
#validate question? yeesh... let's keep it simple for now...
question = Question(text=str(data['text']), answer=str(data['answer']), choices=str(data['choices']))
db.session.add(question)
db.session.commit()
return json_response(question.to_dict(), 201)
def list_questions():
"""Returns a list of all questions known to the application.
"""
query = Question.query
questions = []
limit = -1
sort_direction = 1
## Get the sort order (ascending or descending)
if 'sort' in request.args:
sort_direction = get_sort_direction(request.args['sort'])
## Apply sorting logic.
if 'sortby' in request.args:
field = getattr(Question, request.args['sortby'])
print '[INFO ] Sorting by: {} in direction: {}'.format(field, 'ASC' if sort_direction >= 0 else 'DESC')
query = query.order_by(field) if sort_direction >= 0 else query.order_by(field.desc())
## Get the limit from the query parameters, this will
## be used both for paginated and non-paginated queries
if 'limit' in request.args:
limit = int(request.args['limit'])
print '[INFO ] Limiting query to: {} results'.format(limit)
## If the user has specified a "page" then we're going
## to assume that they want their results to be paginated.
##
## This is a good first pass, but what if the user specifies
## a page that is out of range? They get a 404... this
## might be OK. Need to think on it a bit more. [SWQ]
if 'page' in request.args:
limit = limit if limit > 0 else 10
questions = query.paginate(int(request.args['page']), limit).items
else:
if limit > 0:
query = query.limit(limit)
questions = query.all()
results = [q.to_dict() for q in questions]
return json_response({ 'results': results })
