How to call an form request from another from request?

[JeremieBergeron]

Context:

• First form:

1. I receive a form that contain data from 2 tables: TableOne and TableTwo.
2. Depending on the information that the user wrote, the form can contain only TableOne data.

• Second Form:

1. This form only contains TableTwo data.

• These tables have their own FormRequest.

Question: How can I call the FormRequest of TableTwo in my TableOneFormRequest?

Why I need to do that? I need to validate the form I receive.

PS: This is not a good solution, because it will only merge the rules of the TableTwo. It won't wake in consideration what is wrote in the method like prepareForValidation of TableTwo FormRequest class.

class TableOne extends FormRequest
{
    public function rules(TableTwo $tableTwo )
    { 
        $tableTwoRules = $tableTwo->rules();

        $rules = [
            'XXX'=>'required',
            'XXX'=>'required',
        ];

        return array_merge($rules,$mediaRules);
    }
}