WordPress.org

1. themax
   Member
   Posted 2 years ago #
   

   Hello. I have a question.
   I have 3 custom-fileds, for example is "gain", "spent" and "total".
   I want to fill "total" automatically, like "gain - spent = total".

   Function "get_post_meta" works not correctly in that case, cause it get meta-value after I click "publicate" and I need click "update" again.

   I need some help. How can I got value in custom-field "total" from other meta-values.

   Sry for my English. =)

2. webmystery
   Member
   Posted 2 years ago #
   

   I'm going to be trying something like this soon - was checking to see if some else had already solved it.

   I tink that "Total" will not be a custom field. It will be echoed back to the screen in the front-end view - yes, after the page is updated.
   In a custom page template I'd try something like this:
   

   <?php
   $gain=(get_post_meta($post->ID, 'gain', true));
   $spent=(get_post_meta($post->ID, 'spent', true));
   $total=($gain-$spent);?>
   <p>The total remaining  balance is: $<?php echo($total);?></p>

   Or you could just echo back <?php echo($gain-$spent);?> if you don't need the $total figure elsewhere. Someone more proficient in php could doubtless write a more elegant version of this.

Topic Closed

This topic has been closed to new replies.