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
Make indexing of user messages tolerant to user deletion.
When creating the search document for user messages,
add a check to see if the user has been deleted in the
system. If they have been deleted abort creating the search
document.
This is to avoid rasining an error when trying to get the
user context for a deleted user.
sam marshall