Dynamically Populate Bricks Form Select/Radio/Checkbox Options with Post Titles

How To
1

Manually maintaining select/radio/checkbox field options for post titles in Bricks forms is time-consuming and error-prone. This solution automatically generates line-separated post titles for your select/dropdown fields.

Solution Code (Add to Child Themeā€™s functions.php)

/**
 * Generates line-separated post titles for Bricks select fields
 * 
 * @param string $post_type The post type to retrieve (default: 'post')
 * @return string Line-separated titles or error message
 */
function brx_get_post_titles($post_type = 'post') {
    // Sanitize post type parameter to prevent invalid values
    $post_type = sanitize_key($post_type);
    
    $args = [
        'post_type' => $post_type,
        'posts_per_page' => -1,
        'orderby' => 'title',
        'order' => 'ASC',
        'fields' => 'ids',       
        'no_found_rows' => true  
    ];

    $query = new WP_Query($args);
    $output = '';

    foreach ($query->posts as $post_id) {
        $output .= esc_html(get_the_title($post_id)) . "\n";
    }

    wp_reset_postdata();

    if (empty($output)) {
        return sprintf(
            __('No %s found', 'your-text-domain'),
            esc_html($post_type) 
        );
    }

    return $output;
}

Whitelist the function name

Bricks Builder restricts arbitrary PHP execution for security reasons. Whitelisting tells Bricks explicitly which functions are safe to execute in your templates.

Add this whitelisting code (typically in functions.php):

// Allow our function in Bricks templates
add_filter('bricks/code/echo_function_names', function($allowed_functions) {
    return array_merge((array)$allowed_functions, [
        'brx_get_post_titles' // Whitelist our exact function name
    ]);
});

Implementation in Bricks Builder

  1. Basic Usage (default ā€˜postā€™ post type):

    {echo:brx_get_post_titles()}

  2. For Different Post Types:

    {echo:brx_get_post_titles(products)}
{echo:brx_get_post_titles(service)}
{echo:brx_get_post_titles(portfolio)}

  3. In Form Element Settings: