wordpress

Problem

I wanted to change what posts were displayed to a user when they logged into wordpress and view the Posts page  I could easily alter what posts are shown by using the ‘pre_get_posts’ filter, but the problem was that the number of posts for each status did not change.  You know, at the top of the page it looks like: “All (5) | Published (5)”.  The number 5 did not reflect the number of posts being shown.

Solution

I was hoping to find a filter of some sort on the wp_count_posts function, but there are none.  The second best solution is to rewrite that whole line using the ‘views_edit-post’ filter where “edit-post” is the page id.  A sample of what can be done is in the link below.

source:  http://wordpress.stackexchange.com/questions/36117/wp-post-list-tableget-views-have-post-counts-account-for-filters
keywords:  wp_count_posts filter

Problem

I made a plugin that created a custom post type, but the only way I could customize the single-customposttype.php and archive-customposttype.php is by placing the files into the theme.  It would be nice if everythere could be contained in the plugin and the theme could override if needed.

Solution

WordPress to the rescue… There is a filter called ‘template_include’ that can be used to set the template.  It’s a general filter so you’ll need to check for your post type.

add_filter( 'template_include', 'my_plugin_templates' );
function my_plugin_templates( $template ) {
    $post_types = array( 'project' );

    if ( is_post_type_archive( $post_types ) && ! file_exists( get_stylesheet_directory() . '/archive-project.php' ) )
        $template = 'path/to/list/template/in/plugin/folder.php';
    if ( is_singular( $post_types ) && ! file_exists( get_stylesheet_directory() . '/single-project.php' ) )
        $template = 'path/to/singular/template/in/plugin/folder.php';

    return $template;
}

source: http://wordpress.stackexchange.com/questions/55763/is-it-possible-to-define-a-template-for-a-custom-post-type-within-a-plugin-indep
keywords:  plugin template custom post type

Problem

I was wp_insert_post to programmatically create a custom post type with a custom category.  Using the following code did not work however.

$new_post = array(
‘post_title’ => ‘some title’,
‘post_content’ => ‘some description’,
‘post_status’ => ‘publish’,
‘post_author’ => $admin_user->ID,
‘post_category’ => array($category->term_id)
);
wp_insert_post($new_post);

Solution

If I read the wordpress codex better and more thoroughly I probably would have seen that there is another special parameter for custom taxonomies.  Instead of using ‘post_category’ I should be using ‘tax_input’ for custom taxonomy categories.  So instead of the ‘post_category’ line, it would look like:

‘tax_input’ => array($category->taxonomy => array($category->cat_name ));

If this doesn’t work, like it didn’t for me because I’m using it in a CRON, the user you are using may not have rights to modify the taxonomy.  in that case, as the docs say, use wp_set_object_terms.  The problem is that wp_insert_post uses current_user_can to detect if the current user can add the taxonomy.  The issue is documented here: http://core.trac.wordpress.org/ticket/19373

source: http://wordpress.org/support/topic/problem-with-wp_insert_post-for-custom-post-type-category-is-not-associated
keywords:  wordpress post_category wp_insert_post