Due to race conditions in the function subscribe_user
it was possible to create duplicate forum subscriptions.
This lead to error messages, when displaying the list of
all subscriptions.
This patch removes all existing duplicate entries and
creates a unique db key to prevent this from happening in
the future.
This change considers all existing search areas in Moodle and makes
necessary changes.
Custom change to course search, supported by helper in base.php:
* course/classes/search/mycourse.php
Custom change to message search:
* message/classes/search/message_received.php
* message/classes/search/message_sent.php
Custom change to user search:
* user/classes/search/user.php
Custom changes to module areas, supported by helper in base_mod.php:
* mod/book/classes/search/chapter.php
* mod/data/classes/search/entry.php
* mod/forum/classes/search/post.php
* mod/glossary/classes/search/entry.php
* mod/survey/classes/search/activity.php
* mod/wiki/classes/search/collaborative_page.php
(Note: the unit tests do not exhaustively check every context type
for these, given that's mainly handled by the helper function
which was already tested in the base_activity test.)
Handled by block base class (no change):
* blocks/html/classes/search/content.php
Handled by activity base class (no change):
* mod/assign/classes/search/activity.php
* mod/book/classes/search/activity.php
* mod/chat/classes/search/activity.php
* mod/choice/classes/search/activity.php
* mod/data/classes/search/activity.php
* mod/feedback/classes/search/activity.php
* mod/folder/classes/search/activity.php
* mod/forum/classes/search/activity.php
* mod/glossary/classes/search/activity.php
* mod/imscp/classes/search/activity.php
* mod/label/classes/search/activity.php
* mod/lesson/classes/search/activity.php
* mod/lti/classes/search/activity.php
* mod/page/classes/search/activity.php
* mod/quiz/classes/search/activity.php
* mod/resource/classes/search/activity.php
* mod/scorm/classes/search/activity.php
* mod/url/classes/search/activity.php
* mod/wiki/classes/search/activity.php
* mod/workshop/classes/search/activity.php
1) Change the fpdi_bridge class so that it extends the pdf class,
rather than the TCPDF class.
2) Empty class check that was implemented before
3) Updated the editpdf/fpdi/readme_moodle.txt file to document the changes.
4) Updated the editpdf/thirdpartylibs.xml to reflect the update to the
FPDI library.
The submission viewed event was being triggered at the beginning of the
script (before doing all the validation/safety checks).
I’ve moved the triggering to a better place so the event it is only
triggered when is verified that the user has permissions to view
the submission.
