I found this guide intriguing, but it's intended for Thesis:

http://www.wolf-howl.com/blogs/thesis-digg-facebook/

Is there a way to do this with Atahualpa? It's basically a way to tell Facebook and Digg what image to use when you post a link from your site to them.

I am guessing you would have use a custom field with the URL of the image you want, but I am not exactly sure how to do this using Atahualpa "language" and every time I've tried to edit the functions of Atahualpa it crashes.

Yes, add the code to functions.php

PHP Code:

function get_social_img() {
    global $post;
    if ( is_single ()){
       $image = get_post_meta($post->ID, 'title_of_your_custom_field', $single = true);
       ?>
       <link rel="image_src" href="<?php echo $image; ?>" />
       <?
    }
}
add_action('wp_head', 'get_social_img');

You could also automate this without custom fields

PHP Code:

function get_social_img() {
    global $post;
    if ( is_single ()){
      $image = "http://www.yoursite.com/socialimages/".$post->ID.".jpg";
       ?>
      <link rel="image_src" href="<?php echo $image; ?>" />
       <?
      }
}
add_action('wp_head', 'get_social_img');

This would print

<link rel="image_src" href="http://www.yoursite.com/socialimages/17.jpg" />

on the single post page of the post with the ID #17

You'd put the images into yoursite.com/socialimages/

Thanks so much Flynn, it works perfectly.

Do you know if there it a way to automatically detect the first image within a post, or would that be really complicated? Just curious, don't feel obligated to come up with anything because it's working awesome right now. I'm so happy.

Hi
May i know , does the code above work for other wordpress themes.


Thank you.
Best regards
Anthony

I'd like to control the thumbnail for just the homepage link in Facebook.

Also, where in functions.php does the code snippet above get inserted?

Hi

I already try the mentioned code in my php.admin.


I do change the code as below, please let me know am i correct to change this. now there is no image for facebook thumbnail at all.

function get_social_img() {
    global $post;
    if ( is_single ()){
      $image = "http://mysite.com/wp-content/uploads/".$post->ID.".jpg";
       ?>
      <link rel="image_src" href="<?php echo $image; ?>" />
       <?
      }
}
add_action('wp_head', 'get_social_img');

thank you.