Saving data for different custom posts

Question

I have three different posts types registered:

register_post_type( 'foo' , $args );
register_post_type( 'bar' , $args );
register_post_type( 'baz' , $args );

When I am creating a new, say, "foo" post, I only want to save the meta box for "foo", what do I do?

add_action('save_post', 'save_details');

So, if my post_type were called "foo_post":

add_meta_box( 
    $id, 
    $title, 
    $callback, 
    // SPECIFY THE POST TYPE HERE!!!
    "foo_post", 
    $context, 
    $priority, 
    $callback_args );

What do I do to save only "foo post" meta box when I am creating / edit a "foo post" page?

Answer 1

Since save_post gives you the post_id of the current post, you simply want to check what post_type it is by using get_post_type($post_id)

like:

add_action('save_post', 'save_details')

function save_details($post_id)
{
     $post_type = $_REQUEST['post_type'];

     if ('foo_post' == $post_type)
     {
          // save stuff for foo_post
     }
     elseif ('bar_post' == $post_type)
     {
          // save stuff for bar_post
     }
}

and so on...

get_post_type() codex page

Answer 2

I assume you're talking about a custom post meta box? If so, then you need to ensure that you *specify the $posttype when you call add_meta_box(). e.g.:

<?php
add_meta_box( 
    $id, 
    $title, 
    $callback, 
    // SPECIFY THE POST TYPE HERE!!!
    $post_type, 
    $context, 
    $priority, 
    $callback_args );
?>

If you're not referring to a custom post meta box, then you'll need to provide more information, regarding what post meta box you're trying to manipulate.