Playa field with the same data

Question

I have a playa field into an entrie for a channel written by teachers. I'd like to prevent when a teacher uploads the same 'link' multiple time in different lessons that the 'link' is NOT shown multiple times but only once in a summery for the student

I was thinking for a conditional like {if link == link} {/if} or would a conditional with count be in order for this.

Hope someone can help?

{exp:playa:parents channel="teacher" status="not closed"} {link} {/exp:playa:parents}

Thanks in advance

Dave

Answer 1

Are you using Stash already? If so, you can use its unique parameter to exclude duplicates. Something like this:

{!-- ====================================
SET
========================================= --}

{exp:stash:set_list name="links" trim="yes" parse="yes"}
  {exp:playa:parents channel="teacher" status="not closed"}
    {stash:the-link}{link}{/stash:the-link}
  {/exp:playa:parents}
{/exp:stash:set_list}

{!-- ====================================
GET
========================================= --}

<ul>
{exp:stash:get_list name="links" unique="yes"}
  <li><a href="{the-link}">{the-link}</a></li>
{/exp:stash:get_list}
</ul>