Ryan Taylor 6abb24a4f0 Prevent JSON parse errors in Quiz Statistics ... Some quizzes ended up with a set of answers which caused the statistical calculations to implode. This catches these and sanitizes them. JSON parsers are happier now. Closes CNVS-17466 Test Plan: - Create a quiz which replicates the original problem. Apparently this can be done by answering the quiz with different answers and only two students, however I suspect it has more to do with answers having a standard deviation of zero (i.e. identical answers). - Visit the quiz statistics page for that quiz and confirm that stats finish loading and show some data. Change-Id: I2847a2aa99c34579c926b05b371a7c48242ab618 Reviewed-on: https://gerrit.instructure.com/47766 Tested-by: Jenkins Reviewed-by: Cameron Sutter <csutter@instructure.com> Product-Review: Matt Fairbourn <mfairbourn@instructure.com> QA-Review: Sean Lewis <slewis@instructure.com>		2015-01-27 22:34:47 +00:00
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log_auditing	Quiz Event Aggregator for QS events	2014-12-01 17:13:57 +00:00
quiz_question	Quiz stats cleanup	2014-11-24 18:08:19 +00:00
quiz_question_builder	Fix quiz questions from banks	2014-12-15 17:38:13 +00:00
quiz_regrader	Fix quiz questions from banks	2014-12-15 17:38:13 +00:00
quiz_statistics	Prevent JSON parse errors in Quiz Statistics	2015-01-27 22:34:47 +00:00
quiz_submission	Fix quiz questions from banks	2014-12-15 17:38:13 +00:00
outstanding_quiz_submission_manager.rb	Controller/model features for Outstanding Quiz Submissions	2014-09-30 19:46:01 +00:00
quiz.rb	QLA - Table view / answer matrix	2014-12-19 22:11:56 +00:00
quiz_extension.rb	Course Quiz Extension: A course level quiz extension API	2014-09-05 16:26:07 +00:00
quiz_group.rb	remove rails 2 support	2014-08-06 18:16:19 +00:00
quiz_participant.rb	no more dynamic finders (models)	2014-09-24 20:51:48 +00:00
quiz_question.rb	Fix quiz questions from banks	2014-12-15 17:38:13 +00:00
quiz_question_builder.rb	Fix quiz questions from banks	2014-12-15 17:38:13 +00:00
quiz_question_data_fixer.rb	namespace all of quiz into quizzes module	2014-02-18 22:17:13 +00:00
quiz_question_link_migrator.rb	no more dynamic finders (models)	2014-09-24 20:51:48 +00:00
quiz_question_regrade.rb	remove rails 2 support	2014-08-06 18:16:19 +00:00
quiz_regrade.rb	no more dynamic finders	2014-10-03 16:22:49 +00:00
quiz_regrade_run.rb	remove rails 2 support	2014-08-06 18:16:19 +00:00
quiz_sortables.rb	namespace all of quiz into quizzes module	2014-02-18 22:17:13 +00:00
quiz_statistics.rb	Quiz Reports API - force regeneration	2014-11-12 22:49:38 +00:00
quiz_statistics_service.rb	A landing page for when Quiz Stats are just too big	2015-01-13 19:17:14 +00:00
quiz_student_visibility.rb	DA - module evaluation efficiency	2014-10-28 19:11:47 +00:00
quiz_submission.rb	QLA - use the submission's question set	2014-12-18 23:39:54 +00:00
quiz_submission_attempt.rb	namespace all of quiz into quizzes module	2014-02-18 22:17:13 +00:00
quiz_submission_event.rb	canvas-partman - rolling partition migrations	2014-12-03 19:53:53 +00:00
quiz_submission_event_partitioner.rb	fix issue with event created at time not being set to utc time	2015-01-01 04:34:55 +00:00
quiz_submission_history.rb	QLA - use the submission's question set	2014-12-18 23:39:54 +00:00
quiz_submission_service.rb	no more dynamic finders (models)	2014-09-24 20:51:48 +00:00
quiz_submission_snapshot.rb	namespace all of quiz into quizzes module	2014-02-18 22:17:13 +00:00
quiz_submission_zipper.rb	namespace all of quiz into quizzes module	2014-02-18 22:17:13 +00:00
quiz_user_finder.rb	DA - quiz messaging	2014-10-01 21:01:28 +00:00
quiz_user_messager.rb	add submitted/unsubmitted quiz users endpoint to quizzes api	2014-04-18 21:04:23 +00:00
submission_grader.rb	Controller/model features for Outstanding Quiz Submissions	2014-09-30 19:46:01 +00:00
submission_manager.rb	Controller/model features for Outstanding Quiz Submissions	2014-09-30 19:46:01 +00:00