Anouar
erreur
i still have erreur in this function
Tables\Columns\TextColumn::make('Books')->getStateUsing(
function ($author) {
return (string)$author->books()->count();
}
)
->sortable(),
erreur : An attempt was made to evaluate a closure for [Filament\Tables\Columns\TextColumn], but [$author] was unresolvable.
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