[wp-trac] [WordPress Trac] #2834: Cannot conditionalize previous_posts_link() or next_posts_link()

[WordPress Trac]

#2834: Cannot conditionalize previous_posts_link() or next_posts_link()
---------------------------+------------------------------------------------
 Reporter:  paulschreiber  |        Owner:  pishmishy
     Type:  enhancement    |       Status:  reopened 
 Priority:  normal         |    Milestone:           
Component:  Template       |      Version:  3.0      
 Severity:  normal         |   Resolution:           
 Keywords:                 |  
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Comment(by jimisaacs):

 for instance this is an example of my most recent fix in a theme. Please
 pay no attention to the actual return value HTML, that is specific to the
 theme. What I am showing is what I as a developer am reduced to, if I
 don't want to rewrite the functions altogether.
 This would be a lot easier if there were just some returns.

 /**
  * Gets the formatted post navigation for next and previous posts
  *
  * @return string HTML
  */
 function mytheme_get_post_navigation( $format = '%link', $previous_text =
 '← prev', $next_text = 'next →', $in_same_cat = false,
 $excluded_categories = ''  ) {
         // Sorry, no other way to do this without completely duplicating
 WordPress function
         ob_start(); previous_post_link($format, $previous_text,
 $in_same_cat, $excluded_categories ); $prev = ob_get_clean();
         ob_start(); next_post_link($format, $next_text, $in_same_cat,
 $excluded_categories ); $next = ob_get_clean();
         // only set html if there are actually links available
         return apply_filters( 'mytheme_post_navigation', ( $prev || $next
 ) ? '<nav class="post_navigation"><span class="alignleft
 previous">'.$prev.'</span> <span class="alignright
 next">'.$next.'</span></nav>' : '' );
 }

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Ticket URL: <http://core.trac.wordpress.org/ticket/2834#comment:8>
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