Laravel 5.1 Modify input before form request validation

Question

Is there a way to modify input fields inside a form request class before the validation takes place?

I want to modify some input date fields as follows but it doesn

Answer 1

As of laravel 5.4 you can override the prepareForValidation method of the ValidatesWhenResolvedTrait to modify any input. Something similar should be possible for laravel 5.1.

Example in your Request

/**
 * Modify the input values
 *
 * @return void
 */
protected function prepareForValidation() {

    // get the input
    $input = array_map('trim', $this->all());

    // check newsletter
    if (!isset($input['newsletter'])) {
        $input['newsletter'] = false;
    }

    // replace old input with new input
    $this->replace($input);
}