Selected an option in edit view cakephp 3.0 - select

Question

I am generating list within a form like the following code. But for updating view how can select the particular option according to the user. Suppose for this user's role is Customer. Then how can select this(Customer) option in CakePHP 3.
<?= $this->Form->create($user) ?>
<?php
echo $this->Form->input('fullname');
echo $this->Form->input('contact_no');
?>
<div class="form-group">
<?php echo $this->Form->select(
'role',
['Customer', 'Staff', 'User'],
['title' => 'Select user type']
); ?>
</div>
<?= $this->Form->end() ?>

Answer 1

Here is what I did : (According that I have 2 tables : Users which belongsTo Roles)
In my UsersController, i added this following line :
$this->set('roles', $this->Users->Roles->find('list')->order('name'));
Then, you'll need to edit your view from
<div class="form-group">
<?php echo $this->Form->select(
'role',
['Customer', 'Staff', 'User'],
['title' => 'Select user type']
); ?>
</div>
to
<div class="form-group">
<?= $this->Form->select(
'role_id',
$roles,
['id' => 'role-id', 'required' => true]
);
?>
</div>