Allows to populate drop-down, radio- or checkbox list fields, which have been added with
shop:onExtendShippingOptionForm event.
Usually you do not need to use this event for fields which represent
data relations. But if you want a standard
field (corresponding an integer-typed database column, for example), to be rendered as a drop-down list, you should
handle this event.
The event handler should accept 2 parameters - the field name and a current field value. If the current
field value is -1, the handler should return an array containing a list of options. If the current
field value is not -1, the handler should return a string (label), corresponding the value.
public function subscribeEvents()
{
Backend::$events->addEvent('shop:onExtendShippingOptionModel', $this, 'extend_shipping_option_model');
Backend::$events->addEvent('shop:onExtendShippingOptionForm', $this, 'extend_shipping_option_form');
Backend::$events->addEvent('shop:onGetShippingOptionFieldOptions', $this, 'get_shipping_option_field_options');
}
public function extend_shipping_option_model($shipping_option, $context)
{
$shipping_option->define_column('x_drop_down', 'Some drop-down menu');
}
public function extend_shipping_option_form($shipping_option, $context)
{
$shipping_option->add_form_field('x_drop_down')->tab('General Parameters')->renderAs(frm_dropdown);
}
public function get_shipping_option_field_options($field_name, $current_key_value)
{
if ($field_name == 'x_drop_down')
{
$options = array(
0 => 'Option 1',
1 => 'Option 2',
2 => 'Option 3'
);
if ($current_key_value == -1)
return $options;
if (array_key_exists($current_key_value, $options))
return $options[$current_key_value];
}
}
