Issue displaying fields in homepage slider.

• thebluecasket

• January 17, 2014 at 9:53 am

Hello, all!

I’m currently working on adding simple functionality to a client website but I’ve ran into an issue getting a custom field to display.

1. From the post editor screen, the user enters a URL into a field created by ACF (this field only appears if the post has the “Featured” class which adds it to the homepage slider).
2. If a URL is entered into the field, a button will be displayed in that post’s slider item.

But whenever I try any of the get_field methods in the documentation, it doesn’t end up displaying the field’s data. Just to make sure it wasn’t ACF that’s the problem, I modified the single.php to display the field in the actual post, and that test worked just fine. So I figure the issue must lie in the PHP file that I’m entering it into, which is shown below. The line of PHP I’m trying to add looks like this:

<a href="<?php the_field('registration_url'); ?>"><img src="http://placehold.it/200x70.png" alt="Register Here"></a>

This is the featured.php file that is called by the home.php. Admittedly it’s been a while since I touched PHP, so any help would be much appreciated. Thank you all very much!

<?php	
	global $ids;
	$ids = array();
	$arr = array();
	$i=1;
	
	$width = 330;
	$height = 220;
	
	$width_small = 72;
	$height_small = 72;
		
	$featured_cat = get_option('thecorporation_feat_cat');
	$featured_num = get_option('thecorporation_featured_num');
	
	if (get_option('thecorporation_use_pages') == 'false') query_posts("showposts=$featured_num&cat=".get_catId($featured_cat));
	else { 
		global $pages_number;
		
		if (get_option('thecorporation_feat_pages') <> '') $featured_num = count(get_option('thecorporation_feat_pages'));
		else $featured_num = $pages_number;
		
		query_posts(array
						('post_type' => 'page',
						'orderby' => 'menu_order',
						'order' => 'ASC',
						'post__in' => (array) get_option('thecorporation_feat_pages'),
						'showposts' => (int) $featured_num
					));
	};
	
	while (have_posts()) : the_post();
			
		$arr[$i]["title"] = truncate_title(50,false);
		$arr[$i]["title_small"] = truncate_title(25,false);
		
		$arr[$i]["fulltitle"] = truncate_title(250,false);
		
		$arr[$i]["excerpt"] = truncate_post(470,false);
		$arr[$i]["excerpt_small"] = truncate_post(80,false);
		
		$arr[$i]["tagline"] = get_post_meta($post->ID, 'Tagline', $single = true);
		$arr[$i]["permalink"] = get_permalink();
		
		$arr[$i]["thumbnail"] = get_thumbnail($width,$height,'thumb',$arr[$i]["fulltitle"],$arr[$i]["tagline"]);
		$arr[$i]["thumb"] = $arr[$i]["thumbnail"]["thumb"];
		$arr[$i]["thumbnail_small"] = get_thumbnail($width_small,$height_small,'',$arr[$i]["fulltitle"],$arr[$i]["tagline"]);
		$arr[$i]["thumb_small"] = $arr[$i]["thumbnail_small"]["thumb"];
		
		$arr[$i]["use_timthumb"] = $arr[$i]["thumbnail"]["use_timthumb"];

		$i++;
		$ids[]= $post->ID;
	endwhile; wp_reset_query();	?>
	

<div id="featured-area">
	<div class="container clearfix">		
		<div id="featured-slider">
			
			<?php for ($i = 1; $i <= $featured_num; $i++) { ?>
			
				<div class="featitem clearfix">
					<h2 class="feat-heading"><?php echo esc_html($arr[$i]["title"]); ?></h2>
					<p class="tagline"><?php echo($arr[$i]["tagline"]); ?></p>					
					<div class="excerpt">
						<p><?php echo($arr[$i]["excerpt"]); ?></p>

						<a href="<?php the_field('registration_url'); ?>"><img src="http://placehold.it/200x70.png" alt="Register Here"></a>

						<a href="<?php echo esc_url($arr[$i]["permalink"]); ?>" title="<?php printf(esc_attr__('Permanent Link to %s', 'TheCorporation'), $arr[$i]["fulltitle"]) ?>" class="readmore"><span><?php esc_html_e('read more','TheCorporation'); ?></span></a>
					</div> <!-- end .excerpt -->
					
					<a href="<?php echo esc_url($arr[$i]["permalink"]); ?>" title="<?php printf(esc_attr__('Permanent Link to %s', 'TheCorporation'), $arr[$i]["fulltitle"]) ?>">
						<?php print_thumbnail($arr[$i]["thumb"], $arr[$i]["use_timthumb"], $arr[$i]["fulltitle"] , $width, $height, 'thumb'); ?>
					</a>
				</div> <!-- end .featitem -->
				
			<?php }; ?>
															
		</div> <!-- div #featured-slider -->
		
		<a id="prevlink" href="#"><?php esc_html_e('Previous','TheCorporation'); ?></a>
		<a id="nextlink" href="#"><?php esc_html_e('Next','TheCorporation'); ?></a>	
	</div> <!-- end .container -->
</div> <!-- end #featured-area -->

<div id="featured-thumbs">
	<div class="container clearfix">
	
		<?php for ($i = 1; $i <= $featured_num; $i++) { ?>
			<a href="#">
				<?php print_thumbnail($arr[$i]["thumb_small"], $arr[$i]["use_timthumb"], $arr[$i]["fulltitle"] , $width_small, $height_small); ?>
			</a>
			<div class="thumb_popup">
				<p class="heading"><?php echo($arr[$i]["title_small"]); ?></p>
				<p>"<?php echo($arr[$i]["excerpt_small"]); ?></p>
			</div> <!-- end .thumb_popup -->
		<?php }; ?>
		
		<div id="active_item"></div>
		
	</div> <!-- end .container -->
</div> <!-- end #featured-thumbs -->

• Elliot

• January 19, 2014 at 6:38 pm

Hi @thebluecasket

The issue is that when you use the the_field function, ACF does not know which post to get it from! You need to specify the post_id so that ACF can correctly load the value.

You have a while loop which correctly uses the the_post function, so within this loop, you CAN use the get_field function as per normal to store data into the array like so:
$arr[$i]["custom_field"] = get_field('custom_field');

Then just echo this out in the later loop, like you are doing for all other data.

Thanks
E

• thebluecasket

• January 21, 2014 at 8:47 am

That worked like a charm! Thank you very much, Elliot! ACF is working like a champ. Fantastic plugin. Thank you so much for making it available!