Form Input Element Names Different to Table Column Names

I have a MySQL table that includes column names containing underscores: legal_name and trading_name. I have an update form whose corresponding input elements have name attributes, using hyphens, of legal-name and trading-name respectively.

This is my original update() method in the controller:

public function update(Request $request, string $id) {
    $bank = Bank::find($id);

    $bank->update($request->all());

    return redirect()->route('banks.index');
}

No records were being updated as I guess Eloquent assumes that table column names are the same as the name attributes for form elements.

So, I changed the controller's update() method:

public function update(Request $request, string $id) {
    $bank = Bank::find($id);

    $bank->update([
         'legal_name' => $request->{'legal-name'},
         'trading_name' => $request->{'trading-name'}
    ]);

    return redirect()->route('banks.index');
}

This works, but after a lot of searching I was unable to confirm that this is the correct way. In fact the majority of search results mention using accessors and mutators, but I can't quite see how they fit.

Would be grateful for some guidance on this.

Many thanks, Steve.