unique rules depending on other field

i have field volume_name and book_name in sections table i want a rule that make unique book_name depends on volume name volume_name book_name volume 1 book 1 volume 1 book 2 so when i encode volume 1 book 1 it will have validated error. Here's my code

Solution:

Live the fields live, then put a closure into the rules. like https://filamentphp.com/docs/3.x/forms/validation#custom-rules...

Validation - Form Builder - Filament

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