[Resolved] Related Posts by Tags and Categories [WP Show Posts Pro + GP Hooks]

[Christian]

lol, sorry. Not sure what’s up with me today.

Here it is:

array(7) { [“order”]=> string(4) “desc” [“orderby”]=> string(4) “rand” [“post_type”]=> string(4) “post” [“posts_per_page”]=> int(6) [“ignore_sticky_posts”]=> bool(true) [“post_status”]=> array(1) { [0]=> string(7) “publish” } [“post__not_in”]=> array(1) { [0]=> int(5621) } }

[Tom]

So our taxonomy stuff isn’t making it into the query at all. That’s very strange – not sure what could be conflicting there.

<div class="wpsp-related-posts1  grid-container">
	<h2>Related Posts</h2>
<?php
    $tax = 'post_tag';

    if ( is_single() ) {
        $tags =  get_the_tags();
        $tags_list = [];
        $tag_ids = [];
        foreach ($tags as $tag) {
            $tags_list[] = $tag->slug;
            $tag_ids[] = $tag->term_id;
        }

        $args = array(
            'numberposts' => 5,
            'tag__in' => $tag_ids,
            'post__not_in' => array( get_the_ID() )
        );

        $posts = get_posts( $args );

        if ( ! empty( $posts ) ) {
            $tax_term = implode( ', ', $tags_list);
        } else {
            $cats =  get_the_category();
            $text_term = $cats[0]->slug;
            $tax = 'category';
        }
    }
    var_dump('taxonomy=' . $tax . '&tax_term=' . $tax_term);
    $list = get_page_by_title( 'related', 'OBJECT', 'wp_show_posts' );
    wpsp_display( $list->ID, 'taxonomy=' . $tax . '&tax_term=' . $tax_term );
    ?>
</div>

What does this output?

[Christian]

Would you like me to keep the filter?

With the filter:

string(27) “taxonomy=category&tax_term=”
array(7) { [“order”]=> string(4) “desc” [“orderby”]=> string(4) “rand” [“post_type”]=> string(4) “post” [“posts_per_page”]=> int(6) [“ignore_sticky_posts”]=> bool(true) [“post_status”]=> array(1) { [0]=> string(7) “publish” } [“post__not_in”]=> array(1) { [0]=> int(5621) } }

Without the filter:
string(27) “taxonomy=category&tax_term=”

[Tom]

Lol, I spelled the variable name wrong, unbelievable.

Try this:

<div class="wpsp-related-posts1  grid-container">
	<h2>Related Posts</h2>
<?php
    $tax = 'post_tag';

    if ( is_single() ) {
        $tags =  get_the_tags();
        $tags_list = [];
        $tag_ids = [];
        foreach ($tags as $tag) {
            $tags_list[] = $tag->slug;
            $tag_ids[] = $tag->term_id;
        }

        $args = array(
            'numberposts' => 5,
            'tag__in' => $tag_ids,
            'post__not_in' => array( get_the_ID() )
        );

        $posts = get_posts( $args );

        if ( ! empty( $posts ) ) {
            $tax_term = implode( ', ', $tags_list);
        } else {
            $cats =  get_the_category();
            $tax_term = $cats[0]->slug;
            $tax = 'category';
        }
    }

    $list = get_page_by_title( 'related', 'OBJECT', 'wp_show_posts' );
    wpsp_display( $list->ID, 'taxonomy=' . $tax . '&tax_term=' . $tax_term );
    ?>
</div>

[Christian]

Smh, Tom…

Kidding. Okay, I think you got it. This one’s working perfectly! 🙂

Thank you so much, Tom!

[raysn]

Hmm I am getting the following php error message when using the code mentioned above:

Warning: Invalid argument supplied for foreach() in /www/htdocs/xxxxxx/xxxxxx/wp-content/plugins/gp-premium/elements/class-hooks.php(180) : eval()’d code on line 24

Seems like this error only occurs, when there is no tag set.

By the way: I’m using the related posts element within the before_right_sidebar_content hook.

The Plugin query monitor outputs the following information:

[Tom]

Here it is cleaned up:

<div class="wpsp-related-posts1  grid-container">
    <h2>Related Posts</h2>
    <?php
    $tax = 'post_tag';
    $tax_term = '';

    if ( is_single() ) {
        $tags =  get_the_tags();
        $tags_list = [];
        $tag_ids = [];
        foreach ( (array) $tags as $tag) {
            if ( isset( $tag->slug ) ) {
                $tags_list[] = $tag->slug;
                $tag_ids[] = $tag->term_id;
            }
        }

        $args = array(
            'numberposts' => 5,
            'tag__in' => $tag_ids,
            'post__not_in' => array( get_the_ID() )
        );

        $posts = get_posts( $args );

        if ( ! empty( $posts ) && ! empty( $tag_ids ) ) {
            $tax_term = implode( ', ', $tags_list);
        } else {
            $cats =  get_the_category();

            if ( ! empty( $cats ) ) {
                $tax_term = $cats[0]->slug;
            }

            $tax = 'category';
        }
    }

    $list = get_page_by_title( 'related', 'OBJECT', 'wp_show_posts' );
    wpsp_display( $list->ID, 'taxonomy=' . $tax . '&tax_term=' . $tax_term );
    ?>
</div>

Let me know if that fixes it or not 🙂

[Christian]

Whoops, I keep forgetting to mark these as resolved, heh. 🙂

[raysn]

Hey Tom,

although there is no critical error anymore, I still get 2 minor PHP issues (“Trying to get property of non-object”). I made a screenshot of the messages (have a look on the full-size image).

Greetings
Raysn

[Tom]

Likely means there are no categories/tags in your case. Updated the code to check for empties: https://generatepress.com/forums/topic/related-posts-by-tags-and-categories-wp-show-posts-pro-gp-hooks/page/3/#post-1294168

[Andrei]

Hey guys, I’m having a similar issue with no posts available to be shown. I follow this guide https://gpsites.co/merch/the-single-post/ – How I made the Related Posts. It works great just some of my categories have 1 article and I get that no posts available notice.

What I would like to achieve in the end would be to display related posts by category and if none available to have a fallback on most recent published articles.

Is this possible?

Cheers.

[Elvin]

Hi Andrei,

As this is already resolved for the topic starter, can you open up a new topic?

So you could use the Private information text field incase needed. Thank you. 🙂

[Author]

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