Different lengths for Excerpt in different locations

  • Kanger

    (@kanger)


    5 years, 8 months ago

    Hello

    I have a home page that takes excerpts from pages for certain parts and it also pulls in the latest news post in another part of the page.

    I want to have the three widgets with page excerpts having a certain length e.g. 41 words

    and the latest news post excerpt to have a different amount like 200 words.

    I have tried the following:

    function excerpt_length_category( $length ) {
if (in_category( 'News' )) {
return 200;
} else {
return 41;
}
}
add_filter( 'excerpt_length', 'excerpt_length_category' );

    (added it to my functions.php file but it hasn’t made any difference and every excerpt is at 41. I’ve cleared caches etc.

    Any ideas?

    I’m using a child theme based on Spacious WordPress theme.

    Thanks in advance for any ideas

    Vicky

Viewing 11 replies - 1 through 11 (of 11 total)
  • Joy

    (@joyously)

    5 years, 8 months ago

    As it says in the description,

    Prior to v2.7, this function could only be used in the WordPress Loop. As of 2.7, the function can be used anywhere if it is provided a post ID or post object.

    you need to give it the post to check.

    Moderator bcworkz

    (@bcworkz)

    5 years, 8 months ago

    $maybe_post = get_queried_object(); // query not always for a post
if ( $maybe_post instanceof WP_Post && in_category( 'News', $maybe_post )) {
    Thread Starter Kanger

    (@kanger)

    5 years, 8 months ago

    Thank you both

    Moderator Jose Castaneda

    (@jcastaneda)

    THEME COFFEE MONKEY

    5 years, 8 months ago

    Have you tried changing the priority?

    
add_filter( 'excerpt_length', 'excerpt_length_category', 100 );
    Thread Starter Kanger

    (@kanger)

    5 years, 8 months ago

    By changing priority do you mean:

    add_filter (‘excerpt_length_category’, ‘excerpt_length’ )

    ? Is the 100 word count for excerpt category?

    Thank you

    Thread Starter Kanger

    (@kanger)

    5 years, 8 months ago

    Thanks bcworkz

    would I need to add return 200 or something? or a filter too?

    something like this?

    $maybe_post = get_queried_object(); // query not always for a post
if ( $maybe_post instanceof WP_Post && in_category( 'News', $maybe_post )) {
	return 200;
}
    Moderator Jose Castaneda

    (@jcastaneda)

    THEME COFFEE MONKEY

    5 years, 7 months ago

    So the priority is an argument passed to the add_filter function. Think of it as a link on a chain. You can change their priorities by removing and re-adding them at an earlier time or later time of execution.

    A plugin could be using

    
add_filter( 'excerpt_length', 'excerpt_length_category' );

    and the theme could be using

    
add_filter( 'excerpt_length', 'excerpt_length_category', 100 );

    The theme’s function will execute last because it has a higher priority. By default ( if you don’t specify ) the priority for all add_action and add_filter functions is 10. You can read about those arguments on the developer pages:

    https://developer.wordpress.org/reference/functions/add_action/
    https://developer.wordpress.org/reference/functions/add_filter/

    Does that make sense?

    Thread Starter Kanger

    (@kanger)

    5 years, 7 months ago

    I think so, kind of like z-index in css…

    thanks

    Moderator bcworkz

    (@bcworkz)

    5 years, 7 months ago

    On further thought, getting the post from the queried object is unreliable for some excerpts. The following should work, but it’s untested.

    function excerpt_length_category( $length ) {
    if (in_category( 'News', get_the_ID())) {
        return 200;
    } else {
        return 41;
    }
}
add_filter( 'excerpt_length', 'excerpt_length_category', 100 );
    Thread Starter Kanger

    (@kanger)

    5 years, 7 months ago

    Wow, you are a genius! It worked! thank you, put it into functions.php file and it’s all doing what I wanted, great! Thank you.

    Moderator bcworkz

    (@bcworkz)

    5 years, 7 months ago

    You’re welcome! Fully grasping an issue is my shortcoming. It often takes me few tries, but I usually get there 🙂

Viewing 11 replies - 1 through 11 (of 11 total)
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