* API Revert addition of Extensible::flush_extra_methods_cache() and change to ExtensionTestState
This reverts the changes from #8465 and #8505 that relate to ExtensionTestState and the
tracking of extra methods between unit tests. The existing test from #8465 testing
overloaded Extensions after extra_methods are populated has been updated to show that you
must re-add the extension to flush the extra_methods cache if you need this behaviour.
* Revert change to InjectorTest::testExtendedExtensions
* Revert "Add failing test to show that overloaded extensions are broken in Extensible"
This reverts commit 55e79ffdfd.
* DOCS Add docs for extending extensions, and upgrade guide note to 4.3 to avoid using PHP config to do so
* MINOR: Add `Previous`, `Next` and `Create New` actions in edit form
If the form is opened via a grid field, the filters will be retained so the previous/next record opened will be correct
* MINOR: Add ability to customise the visibility of the `Previous`, `Next` and `Add` buttons at a `GridField` level
* Fix invalid action when pressing the `New` button in an edit form unless `betterbuttons` module was installed
* - Merge `showPrevious` and `showNext` to `showPagination` for grid fields
- Update documentation
- Improve performance for next/previous buttons by not fetching all list records
- Refactoring
* Refactor to fail gracefully on GridFieldPaginator
This change also renders a portion of DBSchemaManager irrelevant, that
destructively “fixes” old values. This is in keeping with the
non-destructive principle of dev/build, and some suggestions to move
away from enum fields altogether.
Fixes https://github.com/silverstripe/silverstripe-framework/issues/1387
* BUGFIX many many through not sorting by join table
* #8534 added docs to support many many sorting fix
* #8534 added test cases for many_many default sorting
* BUGFIX many many through not sorting by join table
* #8534 added docs to support many many sorting fix
* #8534 added test cases for many_many default sorting
