I have no experience with PHP. I am using ACF select fields to give my client the option of choosing a stylesheet at the individual page, post, and archive level. Just for reference, the fields are singular_css, portfolio_css, and careers_css, depending on the content type, and share these dropdown values:
/wp-content/themes/hello-theme-child-master/custom-css/white.css : White
/wp-content/themes/hello-theme-child-master/custom-css/black.css : Black
/wp-content/themes/hello-theme-child-master/custom-css/blue.css : Blue
/wp-content/themes/hello-theme-child-master/custom-css/tan.css : Tan
/wp-content/themes/hello-theme-child-master/custom-css/gray.css : Gray
This script in the functions.php seems to work as expected to control the stylesheet that gets loaded on singular Posts/Pages, but doesn't allow them to choose a stylesheet for custom post type archives:
/** Insert Dynamic Stylesheet Into <Head> using ACF Field **/
add_action( 'wp_head', 'add_head_script' );
function add_head_script() { ?>
<?php
$singular_css = get_field('singular_css');
if( $singular_css ): ?>
<link rel="stylesheet" href="<?php echo esc_url( $singular_css ); ?>">
<?php endif; ?>
<?php }
Since I wasn't able to control the stylesheet on custom post archives the same way, I've created options pages for them:
/** Creates ACF Options Pages **/
if( function_exists('acf_add_options_page') ) {
acf_add_options_sub_page(array(
'page_title' => 'Portfolio Style',
'menu_title' => 'Portfolio Style',
'parent_slug' => 'edit.php?post_type=portfolio',
'capability' => 'manage_options'
));
acf_add_options_sub_page(array(
'page_title' => 'Careers Style',
'menu_title' => 'Careers Style',
'parent_slug' => 'edit.php?post_type=careers',
'capability' => 'manage_options'
));
}
And tried to enqueue the stylesheets instead, but something isn't working:
/** Enqueue Dynamic Stylesheet using ACF Field **/
function dynamic_style() {
$singular_css = get_field('singular_css');
$portfolio_css = get_field('portfolio_css', 'option');
$careers_css = get_field('careers_css', 'option');
if (is_singular()) {
wp_enqueue_style( 'singular_css', get_stylesheet_directory_uri(). $singular_css );
}
elseif (is_post_type_archive('portfolio')) {
wp_enqueue_style( 'portfolio_css', get_stylesheet_directory_uri(). $portfolio_css );
}
elseif (is_post_type_archive('careers')) {
wp_enqueue_style( 'careers_css', get_stylesheet_directory_uri(). $careers_css );
}
}
add_action( 'wp_enqueue_scripts', 'dynamic_style' );
I also tried writing it this way, but it still doesn't work:
/** Enqueue Dynamic Stylesheet using ACF Field **/
function singular_style() {
$singular_css = get_field('singular_css');
if (is_singular()) {
wp_enqueue_style( 'singular_css', get_stylesheet_directory_uri(). $singular_css );
}
}
add_action( 'wp_enqueue_scripts', 'singular_style' );
function portfolio_style() {
$portfolio_css = get_field('portfolio_css', 'option');
if (is_post_type_archive('portfolio')) {
wp_enqueue_style( 'portfolio_css', get_stylesheet_directory_uri(). $portfolio_css );
}
}
add_action( 'wp_enqueue_scripts', 'portfolio_style' );
function careers_style() {
$careers_css = get_field('careers_css', 'option');
if (is_post_type_archive('careers')) {
wp_enqueue_style( 'careers_css', get_stylesheet_directory_uri(). $careers_css );
}
}
add_action( 'wp_enqueue_scripts', 'careers_style' );
I would suggest you to change the dropdown value to
/custom-css/white.css : White
/custom-css/black.css : Black
/custom-css/blue.css : Blue
/custom-css/tan.css : Tan
/custom-css/gray.css : Gray
And then add the following code on functions.php file
function dynamic_style()
{
if (is_singular()) {
global $post;
$cog_stylesheet = get_field('cog_background_color', $post->ID);
wp_enqueue_style('singular_css', get_stylesheet_directory_uri() . $cog_stylesheet);
}else {
global $post;
$post_type = get_current_post_types($post);
if ($post_type == 'portfolio') {
$portfolio_css = get_field('portfolio_css', 'option');
wp_enqueue_style('portfolio_css', get_stylesheet_directory_uri() . $portfolio_css);
} elseif ($post_type == 'careers') {
$careers_css = get_field('careers_css', 'option');
wp_enqueue_style('careers_css', get_stylesheet_directory_uri() . $careers_css);
}
}
}
add_action('wp_enqueue_scripts', 'dynamic_style');
However, if you still want to use the current dropdown value add the following code on the functions.php file to
function dynamic_style()
{
if (is_singular()) {
global $post;
$cog_stylesheet = get_field('cog_background_color', $post->ID);
wp_enqueue_style('singular_css', home_url() . $cog_stylesheet);
} else {
global $post;
$post_type = get_current_post_types($post);
if ($post_type == 'portfolio') {
$portfolio_css = get_field('portfolio_css', 'option');
wp_enqueue_style('portfolio_css', home_url() . $portfolio_css);
} elseif ($post_type == 'careers') {
$careers_css = get_field('careers_css', 'option');
wp_enqueue_style('careers_css', home_url() . $careers_css);
}
}
}
add_action('wp_enqueue_scripts', 'dynamic_style');
And add the following code on functions.php so that we can get post_type on archive page
function get_current_post_types($object = null)
{
// if a numeric value passed, assume it is a post ID
if (($object) && (is_numeric($object))) {
$object = get_post($object);
}
// if an object is passed, assume to be a post object
if (($object) && (is_object($object))) {
return get_post_type($object);
}
// standard single post type checks
if (is_404()) {
return '';
}
// update: removed this check, handled by is_singular
// if (is_single()) {return 'post';}
if (is_page()) {
return 'page';
}
if (is_attachment()) {
return 'attachment';
}
if (is_singular()) {
return get_post_type();
}
// if a custom query object was not passed, use $wp_query global
if ((!$object) || (!is_object($object))) {
global $wp_query;
$object = $wp_query;
}
if (!is_object($object)) {
return '';
} // should not fail
// if the post_type query var has been explicitly set
// (or implicitly set on the cpt via a has_archive redirect)
// ie. this is true for is_post_type_archive at least
// $vqueriedposttype = get_query_var('post_type'); // $wp_query only
if (property_exists($object, 'query_vars')) {
$posttype = $object->query_vars['post_type'];
if ($posttype) {
return $posttype;
}
}