ENH: Scaffold GridFieldFilterHeader filters for ArrayList based GridFields.

[mfendeksilverstripe]

Description

Enables filtering capability for cases where GirdField data is stored in an ArrayList. This wasn't working before because pre CMS 5 such feature was not supported. With CMS 5 it's possible so we should enable it.

Issues

• GridFieldFilterHeader and ArrayLists #10654
• Localisation manager > Filter capability tractorcow-farm/silverstripe-fluent#924

Likely replaces tractorcow-farm/silverstripe-fluent#922

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[GuySartorelli]

Haven't tested yet, but a few (mostly minor) things stood out in a quick review

[GuySartorelli]

There is a failed unit test that seems relevant - can you please take a look?

1) SilverStripe\Forms\Tests\GridField\GridFieldFilterHeaderTest::testGetBasicSearchContext
We expect the search filters to be different as the filtering is different based on how data is provided to the GridField
Failed asserting that two arrays are not identical.

/home/runner/work/silverstripe-framework/silverstripe-framework/tests/php/Forms/GridField/GridFieldFilterHeaderTest.php:339
/home/runner/work/silverstripe-framework/silverstripe-framework/vendor/bin/phpunit:122

[mfendeksilverstripe]

Hey @GuySartorelli , have pushed up unit test fixes, CI is now green.

[GuySartorelli]

Works well locally, just one thing to fix

[mfendeksilverstripe]

Hey @GuySartorelli I've added your change, please review 🙏

[GuySartorelli]

LGTM, thanks!