Hmmm... maybe trickier than I hoped? If this is simply impossible then please do let me know :-) Question Refinement:How can I adapt the include section of this code to use category names instead of id's? Thanks
$dropdown = wp_dropdown_categories( array(
'include' => '58, 3',
'name' => 'category_id[]',
'hide_empty' => false,
'echo' => false,
) );
I recently started using this code to force users of a multisite to select a category from a dropdown menu before creating a new post.
Can anyone help me restrict the category options to just a few specific categories eg. news / products? Even just not displaying sub-categories would be helpful. Thanks
UPDATE: I found adding this line I was able to restrict the choice to just 2 categories:
'include' => '58, 3',
But how can I make this work with cat names / text instead of id numbers as it's for a multisite & I don't have control over cat id's when new sites are created????
CODE:
add_filter( 'load-post-new.php', 'wpse14403_load_post_new' );
function wpse14403_load_post_new()
{
$post_type = 'post';
if ( isset( $_REQUEST['post_type'] ) ) {
$post_type = $_REQUEST['post_type'];
}
// Only do this for posts
if ( 'post' != $post_type ) {
return;
}
if ( array_key_exists( 'category_id', $_REQUEST ) ) {
add_action( 'wp_insert_post', 'wpse14403_wp_insert_post' );
return;
}
// Show intermediate screen
extract( $GLOBALS );
$post_type_object = get_post_type_object( $post_type );
$title = $post_type_object->labels->add_new_item;
include( ABSPATH . 'wp-admin/admin-header.php' );
$dropdown = wp_dropdown_categories( array(
'name' => 'category_id[]',
'hide_empty' => false,
'echo' => false,
) );
$category_label = __( 'Category:' );
$continue_label = __( 'Continue' );
echo <<<HTML
<div class="wrap">
<h2>{$title}</h2>
<form method="get">
<table class="form-table">
<tbody>
<tr valign="top">
<th scope="row">{$category_label}</th>
<td>{$dropdown}</td>
</tr>
<tr>
<td></td>
<th><input name="continue" type="submit" class="button-primary" value="{$continue_label}" /></th>
</tbody>
</table>
<input type="hidden" name="post_type" value="{$post_type}" />
</form>
</div>
HTML;
include( ABSPATH . 'wp-admin/admin-footer.php' );
exit();
}
// This function will only be called when creating an empty post,
// via `get_default_post_to_edit()`, called in post-new.php
function wpse14403_wp_insert_post( $post_id )
{
wp_set_post_categories( $post_id, $_REQUEST['category_id'] );
}
