How to show next/prev links for specific category

Question

I have an artists page where i want to show next/prev from that artist How to do that in Expression Engine? Also: The artist is a child of a parent, and i only want the child(artist id) not parent category id. The {exp:channel:next_entry/prev_entry} tag is outside of my {exp:channel:entries} tag

This works:

                {exp:channel:next_entry category="12" }
                     <a href="{path='portfolio/project'}">Next Project</a>
                {/exp:channel:next_entry}

                {exp:channel:prev_entry category="12" }
                     <a href="{path='portfolio/project'}">Previous Project</a>
                {/exp:channel:prev_entry}

And this gives 12 as result because of some previous coding:

                  <? echo $artistid ?>

So i thought this would work:

                {exp:channel:next_entry category="<?php echo $artistid ?>" }
                       <a href="{path='portfolio/project'}">Next Project</a>
                {/exp:channel:next_entry}

                {exp:channel:prev_entry category="<?php echo $artistid ?>" }
                     <a href="{path='portfolio/project'}">Previous Project</a>
                {/exp:channel:prev_entry}

Why doesn't it work?

Answer 1

Looks like a parse order issue: http://loweblog.com/downloads/ee-parse-order.pdf

You can use an embed or probably also Stash. I can't tell you how with Stash but here's how with an embed:

---

In main template, change the next/previous code to:

{embed="includes/prevnext" id="<?php echo $artistid ?>"}

* update "includes/prevnext" to your actual template name.

---

Then in the "includes/prevnext" template, use:

 {exp:channel:next_entry category="{embed:id}" }
   <a href="{path='portfolio/project'}">Next Project</a>
 {/exp:channel:next_entry}

 {exp:channel:prev_entry category="{embed:id}" }
   <a href="{path='portfolio/project'}">Previous Project</a>
 {/exp:channel:prev_entry}