[v4 feature] Ability to limit the number of selectable records in a Filament table.

[dvarilek]

I've been thinking whether it would make sense to add some maxSelectableRecords() method to Table, that could limit the number of selectable records. I know that there already is checkIfRecordIsSelectableUsing(), but accessing the selected records in its closure for checking would require entangling the selectedRecords js property (via currentSelectionLivewireProperty()), which shouldn't really be needed for something simple like this.

Also, with the newly added ModalTableSelect component, I feel like it's missing this exact feature. Although selectedRecords is entangled there, adding checkIfRecordIsSelectableUsing() inside the TableSelectLivewireComponent doesn't really make sense neither, as it could potentionally conflict with the developer defined implementation in a table configuration class.

Adding the maxSelectableRecords() would most likely require passing a new argument into the filamentTable Alpine component (the max limit), adding some logic there and also making sure the checkboxes, that are used for selecting, actually get disabled in the blade view (record, bulk and group). The change would be relatively big and might add some overhead due to all the checks though.

If this is something that makes sense and is suitable for the framework, I'd be happy to try and implement it in a PR. What do you think? @danharrin

[danharrin]

I would accept this PR, yes