Does FilamentPHP automatically merge nested validation rules into Repeater fields?

Question

Goal: Determine whether FilamentPHP’s Repeater field automatically applies validation rules defined on its child (nested) fields when validating each repeater item, or whether those rules must be explicitly declared on the repeater schema via a ‘validation’ attribute.

Uncertainty: The official documentation does not specify if nested validation rules are flattened into the repeater’s rule set, and anecdotal reports indicate inconsistent behavior across versions, leading to silent validation failures or unexpected error messages.

Questions: Does FilamentPHP currently merge nested validation rules into the repeater’s validation set? If merging does not occur, what is the recommended method to ensure nested rules are enforced? Is there a configuration flag or attribute that enables automatic rule merging for nested repeater fields?

Tasadduq Burney · Answer

AnswerNo, FilamentPHP does not automatically merge validation rules defined on nested fields into the Repeater field itself.How validation worksEach child field inside a Repeater retains its own validation rules; Filament runs those rules for every repeater item during form validation.The Repeater field can have its own validation rules (e.g., array size constraints) set via ->validation(); these are independent of the child‑field rules.There is no configuration flag or attribute that causes the repeater to inherit or merge the nested rules.What to doDefine validation on the nested fields as usual (e.g., ->required(), ->max:255).If you need validation that applies to the repeater as a whole (such as a minimum number of items), add ->validation(['min:1']) or similar directly on the Repeater field.No extra steps are required to make nested rules run; they already run per item.

Does FilamentPHP automatically merge nested validation rules into Repeater fields?

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How validation works

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