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Repeated Relationship Fields and $post

    • Will

    • February 10, 2014 at 11:42 pm


    I ran into an issue tonight that I think has to do with the global $post variable but I’m not sure. I have a repeater with some conditional logic. Depending on a checkbox, it’ll allow you to pick “resources” from internal posts/pages via relationship field, external links (text) or media uploaded docs(file). I basically followed the tutorial here: The main difference (I think) is that mine was in a repeater.

    Anyway, this didn’t work:

    $internals = get_sub_field('internal_link');
    foreach($internals as $internal):
    <a href="<?php echo the_permalink(); ?>">

    Debugging $internals shows it as a collection of WP Post objects.

    But this did:

    $internals = get_sub_field('internal_link');
    foreach($internals as $post):
    <a href="<?php echo the_permalink(); ?>">

    Would someone please explain why?

    • Elliot

    • February 11, 2014 at 10:01 am

    Hi @will

    If $internals is an array of posts, then the get_sub_field function is working correctly. Perhaps the issue lies in the setup_postdata funciton which can cause many problems wiht the global $post object.

    Try this instead:

    $internals = get_sub_field('internal_link');
    foreach($internals as $p): ?>
    <a href="<?php echo get_permalink( $p->ID ); ?>">
    • Will

    • February 11, 2014 at 3:16 pm

    Thanks Elliot. Yes, that works well. I had that going at first but ran into some other wall that got me to look at the docs and try the setup_postdata() route.

    I’ll mark this as solved and file it mentally under ‘setup_postdata function can cause many problems with the global $post object.‘ I’m having other problems on the page now with conditionals and sub_field values which I’ll chalk up to that too! Will retry your suggested method.

    • Will

    • February 12, 2014 at 6:28 am

    Follow up: the wall I ran into the first time I tried the non setup_postdata method was that you can’t pass an id to get_the_excerpt(). I rewrote the entire loop without the setup_postdata stuff and made my own excerpt function. All is working swimmingly. Thanks again.

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