* Allow for skipping navigation link creation
This commit provides a possible solution for preventing the re-creation
of a navigation link deleted by a Forem creator.
What I need is a discussion around the life-cycle of the application
installation and updates.
In particular, does this provide a robust enough mechanism for resolving
the issue at hand?
_Note: it pains me to ask about a user's role, but this is provided as a
point of discussion and possible implementationi to address the
underlying issue. But I'm referencing a constant in the Rake task so
hopefully that will help future refactors. Also, it's one reason I
needed to remove the `private_constant` declaration._
If we accept this code change, a future task is to document the ENV and
behavior.
Closes#15960
**Further considerations**:
- How might we refine this to not be as "role" reliant?
- Could we have a Site::Setting that we enable/disable
regarding the navigation links?
Regarding QA:
- Start from an empty database
- Run setup
- Verify Navigation Link exists
- Delete Navigation Link
- Run setup again
- Verify Navigation Link exists (because we don't have a user)
- Run seeds
- Delete Navigation Link
- Run setup again
- Verify Navigation Link exists (because we don't have a user)
```shell
$ cd ./path/to/forem/repo
$ rails db:drop db:create db:schema:load
$ bin/setup
$ bin/rails runner "puts NavigationLink.where(url: '/readinglist').exists?"
=> true
$ bin/rails runner "NavigationLink.where(url: '/readinglist').delete_all"
$ bin/rails runner "puts NavigationLink.where(url: '/readinglist').exists?"
=> false
$ bin/setup
$ bin/rails runner "puts NavigationLink.where(url: '/readinglist').exists?"
=> true
$ bin/rails db:seed
$ bin/rails runner "NavigationLink.where(url: '/readinglist').delete_all"
$ bin/rails runner "puts NavigationLink.where(url: '/readinglist').exists?"
=> false
$ bin/setup
$ bin/rails runner "puts NavigationLink.where(url: '/readinglist').exists?"c
=> false
```
* Bump for travis
e1a88d6f81