How to display post's category on related posts

[somuch77]

Hi Ernest

On RPP option panel there’s option to display author or date of posts on RPP. I can’t find a way how to display categories instead.

I tried to open on shortcode php, I found code to echo author <?php echo $rpp_post->author; ?>
I tried to call categories from here, tried some code like $rpp_post->category or $rpp_post->categories and some others code, none of them work. Is there a way to echo related posts category?

Thanks

[Ernest Marcinko]

Hi!

I think a better solution would be to use a filtering function, so the source code is not changed and it’s update proof.

I’ve put together a function that might do the trick. Put this to the functions.php file in your active theme directory:

[php]add_filter( ‘rpp_item_after_postprocessing’, ‘rpp_add_category_titles’, 1, 1 );

function rpp_add_category_titles( $post ) {

// Get the post categories
$post_categories = wp_get_post_categories( $post->ID );
$cats = "";

// Concatenate category names to the $cats variable
foreach($post_categories as $c){
$cat = get_category( $c );
$cats .= " ".$cat->name;
}

if ( $cats != "")
$post->author = $cats;

return $post;
}[/php]

Make sure to save the related posts pro options to clear the posts cache.

I haven’t tried this code, but I’m hoping it will work.

[somuch77]

Can you check if this actually works?

I already add that code on my theme’s function.php, not working in here.

Am I have to edit other than function.php? I tried to change
<?php echo $rpp_post->author; ?>
to
<?php echo $rpp_post->cats; ?>
on \includes\views\rpp.shortcode.php
also not working.

Thanks

[Ernest Marcinko]

Indeed, I tested it and there was an error. Change line:

[php]$post_categories = wp_get_post_categories( $post->ID );[/php]

to

[php]$post_categories = wp_get_post_categories( $post->id );[/php]

and it should start working 🙂

[somuch77]

Yep, it works! Is it possible to add comma in between categories if the post have 2 or more categories?
Maybe like this:
Health, Sport
Health, Sport, Fitness

• This reply was modified 10 years, 5 months ago by somuch77.

[Ernest Marcinko]

Actually, yes, and it’s probably better that way. Try changing the whole thing to this:

[php]add_filter( ‘rpp_item_after_postprocessing’, ‘rpp_add_category_titles’, 1, 1 );

function rpp_add_category_titles( $post ) {

// Get the post categories
$post_categories = wp_get_post_categories( $post->id );
$cats = array();

// Concatenate category names to the $cats variable
foreach($post_categories as $c){
$cat = get_category( $c );
$cats[] = $cat->name;
}

if ( count($cats) )
$post->author = implode(", ", $cats);

return $post;
}[/php]

[somuch77]

Yep, Its done 😀 Thanks for your help!

[Author]

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