My company received a maintenance contract for a website developed in Drupal 7. The Drupal 7 website uses the Quiz contrib module, ver. 7.x-4.0-rc10. The module is used to implement a feature where authenticated users answer questions to tests.
When an authenticated user completes the test and views his result, the following notice errors are displayed on the results page,
- Notice: Undefined index: nid in quiz_take_quiz() (line 2078 of C:\wamp64\www\........\modules\contrib\quiz\quiz.module).
- Notice: Undefined index: vid in quiz_take_quiz() (line 2078 of C:\wamp64\www\........\modules\contrib\quiz\quiz.module).
- Notice: Trying to get property 'type' of non-object in quiz_take_quiz() (line 2082 of C:\wamp64\www\........\modules\contrib\quiz\quiz.module).
- Notice: Undefined index: in quiz_take_quiz() (line 2082 of C:\wamp64\www\........\modules\contrib\quiz\quiz.module).
- Notice: Trying to get property 'is_valid' of non-object in quiz_take_quiz() (line 2084 of C:\wamp64\www\........\modules\contrib\quiz\quiz.module).
The Quiz module has a function, quiz_take_quiz($quiz).
As part of contract signed by my company, I have to resolve all notices. Therefore, what I intend to do is override this function and modify the exact line which is responsible for throwing the above notices (line no. 2078) and add a variable validation there.
However being a newbie to Drupal development I don't know where to start and what to do. I do know that modifying the code in a contrib module is not the best practice. I have hidden the path to the .module file with ........ to maintain privacy.
Can anyone please provide me the solution to this? Early replies will be highly appreciated.
Thank you.
