For a long time, Moodle has had the feature to force the language
for a whole course. This change adds the same feature at activity
level.
The course-level feature was controlled by a capability
moodle/course:setforcedlanguage, and I decided to use the same
capability to control this feature. I think a new capability would be
overkill.
The coding exception hint should say it all. Creating an activity module
should not need any output function call. It turned out it can lead to
hard-to-debug bugs and unexpected behaviour. So better to explicitly
fail and let the developer fix the code.
Add field 'visibleoncoursepage' to the course_modules table
Add site-wide setting for turning on stealth mode availability
Add callback for "stealth" mode support in the course formats
Change display of modules/sections availability on the course page
* Upgrades existing data so that the groupmembersonly option is
replaced with equivalent data for the new availability API.
* Removes the database field and admin setting used for
groupmembersonly.
* Changes core modinfo library to remove/deprecate groupmembersonly
data and functions.
* Changes other core library files to remove groupmembersonly
references.
Includes deprecation of several functions, listed in lib/upgrade.txt.
Changes core code to use new API instead of the old one when
checking user access to activities and sections.
Includes changes to other libraries that are necessary after
adding the availability system and removing old conditional tables
etc.
Tim Hunt