`Option[T]` currently exposes a method `Value()` which is permitted to be called on an option that has a value, and an option that doesn't have a value. This API is awkward because the behaviour if the option doesn't have a value isn't clear to the caller, and, because almost all accesses end up being `.Has()?` then `OK, use .Value()`.
`Get() (bool, T)` is added as a better replacement, which both returns whether the option has a value, and the value if present. Most call-sites are rewritten to this form.
`ValueOrZeroValue()` is a direct replacement that has the same behaviour that `Value()` had, but describes the behaviour if the value is missing.
In addition to the current API being awkward, the core reason for this change is that `Value()` conflicts with the `Value()` function from the `driver.Valuer` interface. If this interface was implemented, it would allow `Option[T]` to be used to represent a nullable field in an xorm bean struct (requires: https://code.forgejo.org/xorm/xorm/pulls/66).
_Note:_ changes are extensive in this PR, but are almost all changes are easy, mechanical transitions from `.Has()` to `.Get()`. All of this work was performed by hand.
## Checklist
The [contributor guide](https://forgejo.org/docs/next/contributor/) contains information that will be helpful to first time contributors. There also are a few [conditions for merging Pull Requests in Forgejo repositories](https://codeberg.org/forgejo/governance/src/branch/main/PullRequestsAgreement.md). You are also welcome to join the [Forgejo development chatroom](https://matrix.to/#/#forgejo-development:matrix.org).
### Tests
- I added test coverage for Go changes...
- [ ] in their respective `*_test.go` for unit tests.
- [ ] in the `tests/integration` directory if it involves interactions with a live Forgejo server.
- I added test coverage for JavaScript changes...
- [ ] in `web_src/js/*.test.js` if it can be unit tested.
- [ ] in `tests/e2e/*.test.e2e.js` if it requires interactions with a live Forgejo server (see also the [developer guide for JavaScript testing](https://codeberg.org/forgejo/forgejo/src/branch/forgejo/tests/e2e/README.md#end-to-end-tests)).
### Documentation
- [ ] I created a pull request [to the documentation](https://codeberg.org/forgejo/docs) to explain to Forgejo users how to use this change.
- [x] I did not document these changes and I do not expect someone else to do it.
### Release notes
- [ ] This change will be noticed by a Forgejo user or admin (feature, bug fix, performance, etc.). I suggest to include a release note for this change.
- [x] This change is not visible to a Forgejo user or admin (refactor, dependency upgrade, etc.). I think there is no need to add a release note for this change.
*The decision if the pull request will be shown in the release notes is up to the mergers / release team.*
The content of the `release-notes/<pull request number>.md` file will serve as the basis for the release notes. If the file does not exist, the title of the pull request will be used instead.
Reviewed-on: https://codeberg.org/forgejo/forgejo/pulls/11218
Reviewed-by: Otto <otto@codeberg.org>
Reviewed-by: Gusted <gusted@noreply.codeberg.org>
Co-authored-by: Mathieu Fenniak <mathieu@fenniak.net>
Co-committed-by: Mathieu Fenniak <mathieu@fenniak.net>
Fixes https://github.com/go-gitea/gitea/issues/30005. Regression from
https://github.com/go-gitea/gitea/pull/29945.
There was only once instance of `tw-content-center` before that PR, so I
just ran below command and reverted that one instance.
```sh
perl -p -i -e 's#tw-content-center#tw-items-center#g' web_src/js/**/* templates/**/* models/**/* tests/**/*
```
(cherry picked from commit 04f9ad056882fc3f21b247b16f84437adf0f36d8)
Conflicts:
templates/repo/diff/conversation.tmpl
templates/repo/header.tmpl
templates/repo/issue/filter_list.tmpl
templates/repo/issue/view_content/conversation.tmpl
templates/repo/wiki/view.tmpl
web_src/js/components/DashboardRepoList.vue
re-ran the command after discarding the Gitea changes to
ensure all Forgejo files are also covered
