moodle/mod/chat/db
Sara Arjona a26cfe71d3 MDL-65809 upgrade: clean < 3.5.0 upgrade steps
This just deletes all the upgrade steps previous to 3.5.0. Some
small adjustments, like tweaking globals can also be applied
when needed.

Also includes an upgrade step to prevent upgrading from any
version < 2018051700 (v3.5.0) as anti-cheating measure.

Previous commits have removed/deprecated all the upgradelib functions
not used anymore in codebase. Deletion has been documented in corresponding
upgrade.txt files:

- upgrade_fix_block_instance_configuration()
- upgrade_theme_is_from_family(), upgrade_find_theme_location()
and linkcoursesectionsupgradescriptwasrun setting
- upgrade_block_positions
- upgrade_fix_config_auth_plugin_names()
 and upgrade_fix_config_auth_plugin_defaults()
- format_xxx_upgrade_remove_numsections(), format_xxx_upgrade_hide_extra_sections()
and format_xxx_upgrade_add_empty_sections()
- filter_mathjaxloader_upgrade_cdn_cloudflare()
and filter_mathjaxloader_upgrade_mathjaxconfig_equal()
- get_assignments_with_rescaled_null_grades()

These have been kept because continue being used by restore:

- \core\task\refresh_mod_calendar_events_task
2019-12-20 12:20:43 +01:00
..
access.php MDL-55251 mod_chat: Add view permissions 2016-07-15 16:13:06 -04:00
events.php MDL-42001 mod_chat: Transforming handlers to observers 2013-09-27 13:38:27 +08:00
install.xml MDL-60793 mod_chat: Renamed 'system' into 'issystem' 2017-12-18 15:23:11 +01:00
log.php MDL-46465 mod_chat: assorted coding style fixes 2014-07-28 10:01:41 +08:00
services.php MDL-57394 mod_chat: New WS mod_chat_get_session_messages 2018-01-30 14:30:51 +01:00
tasks.php MDL-64883 mod_chat: convert cron to scheduled task 2019-03-07 10:10:25 +08:00
upgrade.php MDL-65809 upgrade: clean < 3.5.0 upgrade steps 2019-12-20 12:20:43 +01:00