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Using unique ID/Slug in template

- daveoudshoorn
- June 8, 2016 at 8:51 pm
Hi there,

I’m trying to display a unique slug or ID from a post in my template. It’s used to give a unique ID to an accordion slide open/close. Because of the post loop it uses the same class for each one, which results in only the first one properly working.

Example current code:
<div class="panel-heading" data-toggle="collapse" data-parent="#accordion" data-target="#collapseOne">

I’ve tried the following and more, but no success:
<?php $value = get_field( "titel" ); ?>
<?php $value = get_field( "slug" ); ?>

I’m a noob at PHP so I think theres a simple solution, but I can’t figure it out.

I could create a new field and use <?php the_field('accordion_slug'); ?> or something but I doubt that’s the easiest/cleanest way.

Thanks in advance!
- John Huebner
- June 8, 2016 at 9:27 pm
I’m assuming that you need the unique id to be in the “data-target” attribute. Whatever type of loop you’re using, create a counter and then append the counter to the class would be the simplest way to do what you want.

For example:
```
$count = 0;
foreach ($whatever as $thing) {
  $target = 'collapse-'.$count;
  ?>
    <div class="panel-heading" data-toggle="collapse" 
       data-parent="#accordion" data-target="<?php echo $target; ?>">
  <?php 
  $count++;
}
```
- James
- June 8, 2016 at 9:30 pm
Hi @daveoudshoorn ,

Thanks a lot for reaching out to us.

In order to create unique values for the accordion titles and links you will need to provide a second parameter for the get_field().

This will get the value of the specific posts as opposed to the global posts which is used when the value is not provided.

Hope this helps.
- daveoudshoorn
- June 8, 2016 at 11:17 pm
Hi @hube2 ,

I assume this creates a count which increases by 1 every time to get a unique ID?

This resulted in a white page for me though. I’m not sure if i’m supposed to change some of the tags (fields? don’t know what it’s called) but as I mentioned much of this is wizardry for me.

@acf-support ,

Thanks for the quick reply. I’ve tried variations of the code from the documentation but I’m a still lost.

<php $field = get_field($field_name, $post_id, $format_value); ?>
- daveoudshoorn
- June 9, 2016 at 1:29 am
I’ve managed to get @hube2 solution to work, but with help from (for me) a bit clearer code:
```
You’ll need to start a counter just above your while loop:
$counter = 0;

Then just before your closing endwhile; you’ll need to advance the counter:
$counter ++;
```
Then simply print the number of that loop like this:
```
<?php print "$counter"; ?>

or

<div class="name-<?php print "$counter"; ?>"
```
Source: https://support.advancedcustomfields.com/forums/topic/repeater-field-add-break-after-x-rows/

I’m having a similar issue with a previous developer’s code, but can’t figure it out. I’m working on a page that has 2 arrays inside a loop using repeaters for an accordion drop down of sub fields and dumping all this into a boostrap card grid.

Basic structure:
– if custom query have posts : while custom query have posts : custom query the post
– if in array
– if in array
– count
– while have rows
– get sub fields
– count++
– endwhile
– else
– count
– while have rows
– get sub fields
– count++
– endwhile
– endwhile ; endif
– reset query

I think it definitely has a unique id issue since both arrays and the “else” section share the same repeater rows, fields and sub fields. What am I doing wrong? The else section near the bottom is the only part that works.

The 2 arrays handle this page (not working): http://dev-une-online-testing.pantheonsite.io/about/about-owl/academic-programs/

The else section shows in this page (working): http://dev-une-online-testing.pantheonsite.io/about/about-owl/

Help?

<?php 
function owl_shortcode($atts) {
	ob_start();

	extract(shortcode_atts (array(
	    'category' => '',
	    'name' => '',
	    'orderby' => 'title'	
	), $atts));
						
	if ($category) {
		$cats = explode(",", $category);	
		$array = array();
		for ($i = 0; $i < count($cats); ++$i) {
		$array[] = get_category_by_slug($cats[$i])->term_id;
		}
		
		$custom_query = new WP_Query( array( 
			'category__and' => $array,
			'post_type' => 'owl',
			'orderby'   => $orderby,
			'order'     => 'ASC',
			'posts_per_page' => -1 
		));	
	}
	else {
		$custom_query = new WP_Query( array( 
			'post_type' => 'owl',
			'orderby'   => $orderby,
			'order'     => 'ASC',
			'posts_per_page' => -1 
		));			
	}
	?>	
	
<div class="row">	
<ul class="none">

<?php if ( $custom_query->have_posts() ): while ( $custom_query->have_posts() ) : $custom_query->the_post(); ?>
		<div class="col-sm-6">
			<li class="card containFloat">
				<?php //image ?>
				<div class="circle">
					<?php $image = get_field('image');
					if( !empty($image) ): 
						$size = 'thumbnail';
						$thumb = $image['sizes'][ $size ]; ?>
						<img src="<?php echo $thumb; ?>" alt="<?php echo $image['alt']; ?>"  /> 
					<?php else: ?>
						<img src="https://online.une.edu/wp-content/uploads/2018/06/blank-female-profile.jpg" alt="" height="150px" width="150px"/>
					<?php endif; ?>
				</div>
				
<?php if (in_array("program-administrator", $cats) || in_array("program-manager", $cats) || in_array("program-staff", $cats)) { ?>
    				<div class="containFloat">
    					<h2 class="margin-top">
        				<?php the_title(); ?>
        				<?php if (get_field('degree')) echo ', ' . get_field('degree'); ?>
        				</h2>
						<p><?php the_field('job_title'); ?></p>
                        <p><i class="fas fa-phone"></i> <?php the_field('phone'); ?> </p>
                        <p><a href="mailto:<?php the_field('email'); ?>"><i class="fas fa-envelope-open"></i> <?php the_field('email'); ?></a></p>
                   		<br>
    				</div>  
    				  
<?php if (in_array("program-administrator", $cats) || in_array("program-manager", $cats)) { ?>						
    			<div class="clearBoth">
							
<!--- Accordion Expander - OWL Shortcode Test - NOT WORKING --->	
<div class="panel-group" id="accordion" role="tablist" aria-multiselectable="true">
                   <?php
                   //$uniqueid = get_sub_field( 'collapser' );
                   $uniqueid = uniqid('collapser');
                   $count = 0;
                   while ( have_rows( 'collapser' ) ) : the_row(); ?>
      	<div class="panel panel-default listbox">
                <div class="panel-heading" role="tab" id="headingTwo">
      			 	<a data-toggle="collapse" data-parent="#accordion" href="#collapse-<?php echo esc_attr( $uniqueid ); ?>-<?php echo esc_attr( $count ); ?>" aria-expanded="false">
                       <?php the_sub_field( 'expand_row') ?>
                    </a>
                </div>
        	<div id="collapse-<?php echo esc_attr( $uniqueid ); ?>-<?php echo esc_attr( $count ); ?>" class="panel-collapse collapse" role="tabpanel">
                   <div class="panel-body">
                    	<?php if (get_sub_field('description')) { ?>
						<div class="panel-text"><b>More info</b><?php the_sub_field('description'); ?></div>
						<?php } ?>
                    	<?php if (get_sub_field('education')) { ?>
						<div class="panel-text"><b>Education</b><?php the_sub_field('education'); ?></div>
						<?php } ?>
                    	<?php if (get_sub_field('expertise')) { ?>
						<div class="panel-text"><b>Expertise</b><?php the_sub_field('expertise'); ?></div>
						<?php } ?>
                    	<?php if (get_sub_field('experience')) { ?>
						<div class="panel-text"><b>Experience</b><?php the_sub_field('experience'); ?></div>
						<?php } ?>
                    	<?php if (get_sub_field('research')) { ?>
						<div class="panel-text"><b>Research Interests</b><?php the_sub_field('research'); ?></div>
						<?php } ?>
                    	<?php if (get_sub_field('publications')) { ?>
						<div class="panel-text"><b>Publications</b><?php the_sub_field('publications'); ?></div>
						<?php } ?>
                    	<?php if (get_sub_field('bio')) { ?>
						<div class="panel-text"><b>Bio</b><?php the_sub_field('bio'); ?></div>
						<?php } ?>
                </div>
            </div>
        </div>
				
        <?php $count ++; ?>
<?php endwhile; ?>
</div>
				</div>
                    <?php } ?> 
                    
				<?php } else { ?>
    				<div class="containFloat">
    					<h2><?php the_title(); ?></h2>
    					<p><?php the_field('job_title'); ?></p>
    					<p><i class="fas fa-phone"></i> <?php the_field('phone'); ?> </p>
    					<p><i class="fas fa-envelope-open"></i> <a href="mailto:<?php the_field('email'); ?>"> <?php the_field('email'); ?></a></p><br>
    				</div>
				
				
<!--- Accordion Expander - OWL.php WORKING --->	
<div class="panel-group" id="accordion" role="tablist" aria-multiselectable="true">
                   <?php
                   //$uniqueid = get_sub_field( 'collapser' );
                   $uniqueid = uniqid('collapser');
                   $count = 0;
                   while ( have_rows( 'collapser' ) ) : the_row(); ?>
                  <div class="panel panel-default listbox">
                    	<div class="panel-heading" role="tab" id="headingTwo">
                        <a data-toggle="collapse" data-parent="#accordion" href="#collapse-<?php echo esc_attr( $uniqueid ); ?>-<?php echo esc_attr( $count ); ?>" aria-expanded="false">
                        <?php the_sub_field( 'expand_row' ) ?>
                        </a>
               		 	</div>
                	<div id="collapse-<?php echo esc_attr( $uniqueid ); ?>-<?php echo esc_attr( $count ); ?>" class="panel-collapse collapse" role="tabpanel">
                   		<div class="panel-body">
                   			<?php if (get_sub_field('description')) { ?>
							<div class="panel-text"><b>More info</b><?php the_sub_field('description'); ?></div>
							<?php } ?>
                    		<?php if (get_sub_field('expertise')) { ?>
							<div class="panel-text"><b>Expertise</b><?php the_sub_field('expertise'); ?></div>
							<?php } ?>
                		</div>
            		</div>
        		</div>
        <?php $count ++; ?>
    <?php endwhile; ?>
</div>
<!--- End Accordion --->	
				
                <?php } ?>
			
			</li>
		</div>
	
		<?php endwhile; endif; ?>	
</ul>	
	</div>					 
<?php 
wp_reset_query(); 
return ob_get_clean();
}
?>

- John Huebner
- April 8, 2019 at 2:24 am
If you are using the same repeater for 2 loops you need to reset the rows after each loop.

`
if (have_rows(‘repeater’)) {
while (have_rows(‘repeater’)) {
//……
}
reset_rows();
}

Thanks, John. That makes sense, but I guess I’m getting confused by the language since it’s: if have custom_query posts, while have custom_query posts, the posts, and if in array, and if in array while have rows, the rows, else…

   
<!--- Accordion Expander - OWL Shortcode Test - NOT WORKING --->	
<?php if (in_array("program-administrator", $cats) || in_array("program-manager", $cats)) { ?>						
<div class="clearBoth">
							
	<div class="panel-group" id="accordion" role="tablist" aria-multiselectable="true">
                   <?php $uniqueid = uniqid('collapser'); $count = 0;
                   	while ( have_rows( 'collapser' ) ) : the_row(); ?>
      	<div class="panel panel-default listbox">
                <div class="panel-heading" role="tab" id="headingTwo">
      			 	<a data-toggle="collapse" data-parent="#accordion" href="#collapse-<?php echo esc_attr( $uniqueid ); ?>-<?php echo esc_attr( $count ); ?>" aria-expanded="false">
                       <?php the_sub_field( 'expand_row') ?>
                    </a>
                </div>
        	<div id="collapse-<?php echo esc_attr( $uniqueid ); ?>-<?php echo esc_attr( $count ); ?>" class="panel-collapse collapse" role="tabpanel">
                   <div class="panel-body">
                    	<?php if (get_sub_field('description')) { ?>
						<div class="panel-text"><b>More info</b><?php the_sub_field('description'); ?></div>
						<?php } ?>
                    	<?php if (get_sub_field('education')) { ?>
						<div class="panel-text"><b>Education</b><?php the_sub_field('education'); ?></div>
						<?php } ?>
                    	<?php if (get_sub_field('expertise')) { ?>
						<div class="panel-text"><b>Expertise</b><?php the_sub_field('expertise'); ?></div>
						<?php } ?>
                    	<?php if (get_sub_field('experience')) { ?>
						<div class="panel-text"><b>Experience</b><?php the_sub_field('experience'); ?></div>
						<?php } ?>
                    	<?php if (get_sub_field('research')) { ?>
						<div class="panel-text"><b>Research Interests</b><?php the_sub_field('research'); ?></div>
						<?php } ?>
                    	<?php if (get_sub_field('publications')) { ?>
						<div class="panel-text"><b>Publications</b><?php the_sub_field('publications'); ?></div>
						<?php } ?>
                    	<?php if (get_sub_field('bio')) { ?>
						<div class="panel-text"><b>Bio</b><?php the_sub_field('bio'); ?></div>
						<?php  } ?>
                	</div>
            </div>
        </div>
        	<?php $count ++; ?>
		<?php endwhile; ?>
	<?php reset_rows(); ?>
	</div>
</div>
<?php } ?>

What am I missing? Still getting my chops in PHP, so I’m not quite there yet! Any ideas?

- John Huebner
- April 11, 2019 at 5:58 am
Going back to your original code I see that you are doing a custom query inside of a function.

I’m pretty sure that you need to declare the global $post. Also, you may be in an nested loop already and if this is they case, using a standard have_post() loop in this function will not product the desired results. At this point I’m going to suggest starting your own topic. I have a feeling that this is about the function and the loops that get your here rather then then loops inside of the function.
- cfelax
- April 11, 2019 at 11:59 pm
John, yeah. It’s a doozy. I’ll set up a new topic. Thank you.

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