the_content filter only on first post on main page..how?

  • Resolved Jonas_

    (@jonas_)


    12 years, 10 months ago

    Hi people!

    I’m currently having trouble with this part.. I need only to edit the first( OR ANOTHER.. doesn’t really matter) post of the homepage.. this is because i want to add a jquery script to it.. (which i will do via wp_head) but i also need to add some divs because the jquery will interact with it.

    So i think the best thing to add the divs to the posts/pages via the_content. Now this works fine if i have a page with 1 post or page.. but not on the homepage as it will add the code to all posts..

    Any ideas how to avoid that, and also do you think it’s ok to implement this via the wp_head and the_content filters???

    Thanks in advance!

Viewing 12 replies - 1 through 12 (of 12 total)
  • Moderator keesiemeijer

    (@keesiemeijer)

    12 years, 10 months ago

    try conditional tags

    To add javascript wp_enqueue_script
    example

    Thread Starter Jonas_

    (@jonas_)

    12 years, 10 months ago

    Thanks for the reply!

    I already checked the conditional tags.. i’m currently using is_home to check if i’m on the main page.. that works fine. But i didn’t find any tag to check if it’s the first post in a loop… which is what i need to make it work correctly.. Any ideas?

    Note that i’m using it in a filter (the_content) so it might make it more difficult?

    Anyways is there another function to edit the body of the homepage instead of editing a post that is on the homepage? The divs are hidden so it doesn’t really matter where they are added, but that was the first idea that came up 😀

    Thanks!

    Moderator keesiemeijer

    (@keesiemeijer)

    12 years, 10 months ago

    Try it with a counter:

    <?php
// before the loop
$counter = 0;
?>
<?php
//the loop
while (have_posts()) : the_post();
?>
<?php $counter++; ?>
<?php if(($counter == 1) && is_home()) : ?>
<!-- do stuff for the first post -->
<?php endif; ?>
<!-- rest of loop -->
<?php endwile; ?>

    Thread Starter Jonas_

    (@jonas_)

    12 years, 10 months ago

    Thanks again, but like i just said.. i’m using the filter the_content as it is for a plugin. I can’t modify the source code.. i have to make use of the functions.. 🙂

    Thanks though!

    esmi

    (@esmi)

    12 years, 10 months ago

    I don’t think there’s anything available that you can use as some sort of post counter – unless there’s something you can use in http://codex.wordpress.org/Query_Overview

    Moderator keesiemeijer

    (@keesiemeijer)

    12 years, 10 months ago

    Just as an example and not tested, fool around with this:

    add_filter('the_content', 'first_post');

 function first_post($content) {
 	global $wp_query;
 	global $post;

 	echo '<pre>';
  print_r( $wp_query);
  echo '</pre>';

 	if($wp_query['posts'][0]->ID == $post->ID) {
   // do stuff for first post
  }

  return $content;
 }

    Again, I haven’t tested this and probably won’t work but maybe it gets you on the right track.

    Thread Starter Jonas_

    (@jonas_)

    12 years, 10 months ago

    Ok thanks guys i’ll check it out!

    And you have no idea about another function to add or modify the body?

    Moderator keesiemeijer

    (@keesiemeijer)

    12 years, 10 months ago

    Like Esmi I think it’s just not possible.

    And you have no idea about another function to add or modify the body?

    no

    try this in the function:
    if($wp_query->posts[0]->ID == $post->ID) {

    Thread Starter Jonas_

    (@jonas_)

    12 years, 10 months ago

    Ok thanks guys, i’m going to check it out tomorrow and let you know if it worked.. but i guess it will work, because the code makes sense 🙂

    Thanks!

    Moderator keesiemeijer

    (@keesiemeijer)

    12 years, 10 months ago

    This works (tested) on my testserver for first posts if the_content is used:

    add_filter('the_content', 'first_post');

 function first_post($content) {
 	global $wp_query;
 	global $post;
 	$var ='';

  if($wp_query->posts[0]->ID == $post->ID) {
   $var = 'some divs ';
  }

  return $var.$content;
 }

    Dion Hulse

    (@dd32)

    Meta Developer

    12 years, 10 months ago

    of course, you could just remove the filter after it being used once:

    add_filter('the_content', 'my_filter');
function my_filter($content) {
$content .= '<div>Something</div>';
remove_filter('the_content', 'my_filter'); //remove the filter
return $content;
}
    Thread Starter Jonas_

    (@jonas_)

    12 years, 10 months ago

    @keesiemeijer: yup indeed it works, thank you so much!
    @dion: i need to keep the filter for posts and pages so i can’t use it, but the above works!

    Thanks!

Viewing 12 replies - 1 through 12 (of 12 total)
  • The topic ‘the_content filter only on first post on main page..how?’ is closed to new replies.