Display navigation menu item conditionally based on user capabilities
Use your own walker and check the capability before you create an item.
conditional-content
How can I determine if a post has an image attachment?
I think this should work: $attachments = get_children( array(‘post_parent’ => get_the_ID(), ‘post_type’ => ‘attachment’, ‘post_mime_type’ => ‘image’) ); if ( $attachments ) { // do conditional stuff here }
wp_enqueue_script adding conditional statement not working
From quick look at code this conditional only seems to be processed for styles and not scripts.
how to create a conditional content_width for a wordpress theme?
No, its not possible. $content_width is a theme-wide constant, and its set in functions.php before any of the query conditionals are set. $content_width is used to determine the intermediate image sizes in image_send_to_editor. The “large” image size will be set to the value of $content_width. If you need to modify those sizes on a per-category … Read more
How to conditionally enqueue a stylesheet only for a certain page(s)?
I copy pasted your code into my dev environment, changed nothing but the page name, and it works just fine. Are you sure that it’s not being enqueued and you just have it pointed wrong or that the page is not named incorrectly or something?
Why isn’t is_page working when I put it in the functions.php file?
functions.php is processed way before you can know which page is being loaded. Instead of assigning value to variable put your code into function and use that function in page.php template.
Loading scripts only if a particular shortcode or widget is present
You can use the function is_active_widget . E.g.: function check_widget() { if( is_active_widget( ”, ”, ‘search’ ) ) { // check if search widget is used wp_enqueue_script(‘my-script’); } } add_action( ‘init’, ‘check_widget’ ); To load the script in the page where the widget is loaded only, you will have to add the is_active_widget() code, in … Read more
wp enqueue style on specific page templates
If you plan to do a lot of WP development you should bookmark this page: http://codex.wordpress.org/Conditional_Tags The other answer works but the conditional relies upon your page slug (myurl.com/this-is-the-slug) never changing. A more reliable method (IMO), and one that fits this case, would be to use the is_page_template(‘example-template.php’) conditional check instead.
Enqueue Scripts / Styles when shortcode is present
I found an other way that works well for me: When initializing the plugin, do not enqueue your scripts and styles, but register them with wp_register_style and wp_register_script. Next you can load the script/style on demand. For example when you render a shortcode with wp_enqueue_style(“your_style”) and wp_enqueue_script(“your_script”). Here is an example plugin using this method … Read more
How do test if a post is a custom post type?
Here you are: get_post_type() and then if ( ‘book’ == get_post_type() ) … as per Conditional Tags > A Post Type in Codex.