What is this change required?
I noticed that actions in `SidebarSectionsController` resulted in
lots of N+1 queries problem and I wanted a solution to
prevent such problems without having to write N+1 queries tests. I have
also used strict loading for `SidebarSection` queries in performance
sensitive spots.
Note that in this commit, I have also set `config.active_record.action_on_strict_loading_violation = :log`
for the production environment so that we have more visibility of
potential N+1 queries problem in the logs. In development and test
environment, we're sticking with the default of raising an error.
* DEV: move sidebar community section to database
Before, community section was hard-coded. In the future, we are planning to allow admins to edit it. Therefore, it has to be moved to database to `custom_sections` table.
Few steps and simplifications has to be made:
- custom section was hidden behind `enable_custom_sidebar_sections` feature flag. It has to be deleted so all forums, see community section;
- migration to add `section_type` column to sidebar section to show it is a special type;
- migration to add `segment` column to sidebar links to determine if link should be displayed in primary section or in more section;
- simplify more section to have one level only (secondary section links are merged);
- ensure that links like `everything` are correctly tracking state;
- make user an anonymous links position consistence. For example, from now on `faq` link for user and anonymous is visible in more tab;
- delete old community-section template.
Allows users to configure their own custom sidebar sections with links withing Discourse instance. Links can be passed as relative path, for example "/tags" or full URL.
Only path is saved in DB, so when Discourse domain is changed, links will be still valid.
Feature is hidden behind SiteSetting.enable_custom_sidebar_sections. This hidden setting determines the group which members have access to this new feature.
Alan Guo Xiang Tan
Krzysztof Kotlarek