Check if subfield of repeater has any value, before the_row

• JollyRoger

• October 16, 2019 at 12:45 pm

I want to hide the date, hours and rate table heading columns if the subfield has no value entered, but I’m having a lot of trouble doing it.

I think what I need to do is somehow check if any of the repeater rows contain a value, but do this before the the_row begins.

<?php if(have_rows('items')): ?>

<?php $count = 1;( get_field('items') ); ?>

<table class="count<?php echo $count; ?>">
		
		<thead>
			<tr>
				<th class="description">Description</th>
				<th class="date">Date</th>
				<th class="number-of-hours">Hrs</th>
				<th class="hourly-rate">Rate</th>
				<th class="cost">Cost</th>
			</tr>
		</thead>

		<tbody>
			
		<?php while(have_rows('items')): the_row(); ?>

			<tr>
				<td class="description">
					<?php the_sub_field('description'); ?>
				</td>
				<?php if( get_sub_field('date') ): ?>
				<td class="date">
					<?php the_sub_field('date'); ?>
				</td>
				<?php endif; ?>
				<?php if( get_sub_field('cost_type') == 'hourly'): ?>
				<td class="number-of-hours"><?php the_sub_field('hours'); ?></td>
				<td class="hourly-rate">$<?php the_sub_field('rate'); ?></td>
				<?php endif; ?>
				<td class="cost">$<span id="jobcost<?php echo $count; ?>"></span></td>
			</tr>	
		
		<?php $count++; endwhile; ?>
	
		</tbody>

		<tfoot>
			<tr class="total">
				<td>Total: <span id="total"></span></td>	
			</tr>
		</tfoot>
					
</table>

<?php endif; ?>

• John Huebner

• October 16, 2019 at 1:21 pm

This is where output buffers come in handy, https://www.php.net/manual/en/book.outcontrol.php. I won’t repeat your entire code here, just the basics.

<?php 
  // only send output if there is content
  $has_content = false; // a flag to output content
  ob_start(); // start output buffering
?>
<p>this content will be buffered and only output if the repeater has values.</p>
<?php 
  if (have_rows('repeater field')) {
    while (have_rows('repeater field')) {
      the_row();
      if (get_sub_field('sub field name')) {
        // row has content
        // output the sub field
        the_sub_field('sub field name');
        // set flag to output content
        $has_content = true;
      }
    }
  }
  
  // get the content of the buffer and clear it
  $content = ob_get_clean();
  // if the flag was set then output the content
  if ($has_content) {
    echo $content;
  }

• JollyRoger

• October 16, 2019 at 3:24 pm

Thanks! That has helped a lot, although the way I implemented it is probably all wrong, but the end result is that it works.