Custom Previous Post Tag

  • speeddaryl

    (@speeddaryl)


    18 years, 3 months ago

    Hello,

    I’d like to modify the previous_post_link function in order to display the link with this pattern :
    id=1;title=Previous Post Title;link=#Examples;
    instead of :
    < a href=”#Examples” title=””>« Previous Post Title< /a>

    I’m currently trying to do it with a plugin, but hasn’t managed so far…

    I wanted to find this function in the php files of WP but didn’t find it. Where is it coded ?

    Thanks for your help !

Viewing 2 replies - 1 through 2 (of 2 total)
  • Kafkaesqui

    (@kafkaesqui)

    18 years, 3 months ago

    Use the ‘internal’ WordPress function get_previous_post() (there’s a get_next_post() as well). You probably want to assign it to a var:

    $prev_post = get_previous_post();

    There’ll be two properties to $prev_post:

    $prev_post->ID
$prev_post->post_title

    For the url, you can pass the previous post’s ID to get_permalink():

    get_permalink($prev_post->ID);

    Note: Make certain to first scope the $post object to global in your plugin’s function(s); it’ll be needed to know what the previous and next posts are meant to be in relation to.

    Thread Starter speeddaryl

    (@speeddaryl)

    18 years, 3 months ago

    hello

    thank you for your answer Kafkaesqui
    I’ve started trying to get what i want with your reply, but i dont know how, i found the code of the previous_post_link function in the link-template.php file, and i changed it in order to get what i want :

    function my_previous_post_link($format=’%link’, $link=’%title’, $in_same_cat = false, $excluded_categories = ”) {

    if ( is_attachment() )
    $post = & get_post($GLOBALS[‘post’]->post_parent);
    else
    $post = get_previous_post($in_same_cat, $excluded_categories);

    if ( !$post )
    return;

    $title = apply_filters(‘the_title’, $post->post_title, $post);
    $string = ‘&prev_id=’.$post->ID.’&prev_link=’.get_permalink($post->ID).’&prev_title=’.$post->post_title;

    echo $string;
    }

    do you think this is correct ? it works perfectly for me, though i’m not really making it reusable for another purpose… for example, i’m not using the first two parameters, because i dont need any other usage of this function…

    and i dont know what’s the use of the apply_filter function, i think maybe i can remove it in my_previous_post_link function…

    i hope this will be useful for other people !

    thanks bye
    Speed DARYL http://www.speed-daryl.com

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