dirname() is a slow function compared with __DIR__ and using
'/../'. Moodle has a large number of legacy files that are included
each time a page loads and is not able to use an autoloader as it is
functional code. This allows those required includes to perform as
best as possible in this situation.
When a grade category is overridden, it starts to behave like a regular grade item.
Therefore we need similar behaviour to what was implemented in MDL-48634.
The grade settings page displays a message to inform users that weights
have been adjusted if they did not previously add up to the required 100%.
With the change to sometimes displaying a progress bar, whether the message
is displayed must be calculated immediately after the regrade took place,
and before the page redirects.
I have added a callback with arguments to the regrade_if_required function
which is called immediately after regrade has taken place (regardless of
whether the progress bar is required).
This callback modifies the PAGE URL such that the redirect message will be
displayed after the redirect. This does not use the session as the message
should only be displayed immediately after a change. If the user does not
click on the continue button after the progress bar has been displayed, and
comes back to the page later, this may be confusing.
Three additional checks have been added.
Once grades have been recorded for the activity/grade item -
1) Do not allow the grade type to be changed.
2) Do not allow the scale to be changed.
3) If we are using ratings do not allow the 'Maximum points'
value to be changed.
Also reordered form elements, removed form elements that
were not necessary, added and changed existing language
strings to improve the overall UI.
This setting is not compatible with combinations of aggregation methods
and the ways in which it does and does not work are not documented. It
was voted to remove it completely by the gradebook workshop, so I have
completely removed it and added a warning for all affected courses + restored
backups.
It can happen that some grade items with the type 'None' have a max
grade different than 0, in which case we would have set a weight for
them which is wrong as they must not have any. This patch always
ignores the grade items 'None' and 'Text' when calculating the
weights and locks the weight UI fields for those items too.
