Multiple checkboxes in CakePHP - how to set which are checked?

Question

I have multiple checkboxes in CakePHP\'s Add/Edit view, created with:

echo $this->Form->input(\'email_warning_chb\', array(\'type\'=>\'select\', \'m         


        

Answer 1

As said in other answers, you should set the 'selected' option. What some people don't mention is that your selected array should only contain the id in each element. Example:

$selectedWarnings = $this->Warning->find('list', array(
  'fields' => array('id')
));


echo $this->Form->input('email_warning_chb', array(
    'label' => 'Email Notice',
    'type' => 'select',
    'multiple' => 'checkbox',
    'options' => $warnings,
    'selected' => $selectedWarnings
  ));