Previously, it was possible to create drag-drop markers and onto image
questions without any drag items or drop zones. This was non-sensical,
and broke statistics calculations.
So, missing validation added, and random guess score calculation made
robust.
The behaviour-specific data was getting corrupted when the regrade
recreated the first step, because $oldstep->get_behaviour_data() was
stripping off the leading '-' characters from the names, and they were
not being added back.
By using that assertion the arrays will be sorted before comparison
preventing any Oracle sorting related failures.
Credits for the solution go to Tim Hunt!
PHP before version 8.1 automatically converted to int if the function
parameter (or array key) is expected to be int. PHP 8.1 shows notice in
this case
I thought about renaming the class to just plain attempt, but I
acutally think quiz_attempt makes it clearer what this is. Also
not changing the name massively reduces the pain for everyone
updating their code (including me right now!)
This part of the code in 'question_category_object.php' 'update_category' method was used before Moodle 4.0 version for renaming
the random questions in an updated category. For Moodle 4.0 and later versions, it is unnecessary as the details of
random questions are no more stored in 'question' table but in 'question_set_references' table.
The method call move_question_set_references handles the same.
We will not calculate old maker position again and using old data.
This will make sure the position of makers is correct
when the background image is smaller than dropzone.
Remove negative margin from the "clear my choice" anchor.
With the negative margin, when the containing box height is calculated
the anchor's hidden style overflows beyond the boundary and triggers
the overflow:auto to add a scroll bar.
Default value of the $flag argument changed in PHP 8.1 from ENT_COMPAT to ENT_QUOTES | ENT_SUBSTITUTE
To ensure consistent behavior across different PHP version the second parameter is now required for the functions:
htmlspecialchars(), htmlentities(), htmlspecialchars_decode(), html_entity_decode() and get_html_translation_table()
