warning: invalid argument error

Hi,
please make sure that in both wp-admin / Classifieds / Categories and wp-admin / Classifieds / Locations you have at least one item.

The problem seems to be related to one of <select> fields in the [adverts_add] form.

I didn’t want to manually specify locations, I am using the plugin for google maps, so I didn’t think I needed to add any. As soon as I added at least one “default” it started working.

Is there a way that I can make location and price be required*?

There seems to be a small issue in the MAL add-on adding one location will fix it, as soon as users will start posting ads and filling the locations DB you can remove the default one.

You can add following code to your theme functions.php to make the location and price required (although i am not sure if this will work with MAL enabled).

add_filter( 'adverts_form_load', 'my_adverts_form_require_category' );
function my_adverts_form_require_category( $form ) {
    if($form['name'] != 'advert') {
        return $form;
    }

    if(!is_admin()) {
        foreach($form['field'] as $k => $field) {
            if(in_array($field['name'], array('advert_location', 'adverts_price'))) {
                $field['is_required'] = true;
                if( ! isset($field['validator']) || !is_array($field['validator'])) {
                    $field['validator'] = array();
                }
                $field['validator'][] = array( 'name' => 'is_required' );

                $form['field'][$k] = $field;
                break;
            }
        }
    }

    return $form;
}