Hi James, I have resolved this…who says ACF can’t handle this sort of thing 😉
I’ll post this on the forum as well just in case anyone wants to see it there. First things first, this is the code I ended up with and I will try to explain it:
<?php $args = array (
'orderby' => 'name',
'order' => 'ASC',
'hide_empty' => true,
);
$terms = get_terms( 'category', $args );
foreach ( $terms as $term ) {
echo '<br />';
echo '' . '<img src="' . get_field('category_image', $term->taxonomy . '_' . $term->term_id) . '">';
$post_args = array (
'category_name' => $term->slug,
'posts_per_page' => '-1',
'no_found_rows' => true
);
$query = new WP_Query( $post_args );
while ( $query->have_posts() ) {
$query->the_post(); ?>
<br /><div class="hidepost page-id-<?php echo $post->ID; ?>"><a href="<?php the_permalink(); ?>" title="<?php the_title_attribute(); ?>"><?php the_title(); ?></a></div>
<?php }
} ?>
In its simplest terms this code display a category image field created using ACF and all the pages assigned to the categories. Note these are pages, not posts!
You will see in this code that I have applied <div class="hidepost page-id-<?php echo $post->ID; ?>"><a href="<?php the_permalink(); ?>" title="<?php the_title_attribute(); ?>">
Firstly the hidepost class can be used in CSS to hide all the pages that are now loaded into every page sidebar in the site.
You would just use:
.hidepost {
display:none;
}
in your stylesheet.
Secondly we have a class named: page-id-<?php echo $post->ID; ?>
This pulls in the page id class so you end up with something like page-id-10 which can be used to show or hide the page link something like:
.page-id-10 {
display:block!important;
}
You can of course do this from the stylesheet but I needed to go a step further and have the display of these pages controlled through the admin, which is where ACF came in use again.
I created a repeater field named Sidebar Links with a field in the repeater called Page Link which utilises the Page Link Field Type.
This would normally output a url which was no use in my case as I needed it to output the page ID of the Page Link. So I delved into the ACF plugin itself and edited fields>page_link.php (I have kept a backup of the original).
In page_link.php find around line 603:
// convert $post to permalink
if( is_object($post) ) {
$post = get_permalink( $post );
}
In mine I changed it to:
// convert $post to permalink
if( is_object($post) ) {
echo '.page-id-';
echo $post->ID;
echo '{';
echo 'display:block!important;';
echo '}';
$post = ( '' );
}
In my template I can now use:
<?php
// check if the repeater field has rows of data
if( have_rows('sidebar_links') ):
// loop through the rows of data
while ( have_rows('sidebar_links') ) : the_row();
the_sub_field('page_link');
endwhile;
else :
// no rows found
endif;
?>
which outputs something like .page-id-10 {display:block!important;}
So if I want to control the display of each field dynamically I can now apply this code into the header.php template in the <head></head> section like this:
<style>
<?php
// check if the repeater field has rows of data
if( have_rows('sidebar_links') ):
// loop through the rows of data
while ( have_rows('sidebar_links') ) : the_row();
the_sub_field('page_link');
endwhile;
else :
// no rows found
endif;
?></style>
The above allows me to display the page link if it is selected using the ‘edited’ page link field.
