do_action( ‘admin_print_footer_scripts’ )

User Contributed Notes

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   Aurovrata Venet 8 years ago

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   You can use this hook to insert footer javascript to alter dashboard pages,

   function admin_footer_js(){
   	//you should check to make sure this is the page your want to alter first, check if this your custom post edtit page
   	// for example .wp-admin/edit.php?post_type=my-cpt would be your custom post table list page.
   	if(!isset($_GET['post_type']) || false === strpos($_GET['post_type'],'my-cpt') ){
     		return false;
     	}
   	//get_current_screen() can result in fatal error on some admin pages, hence I use it after a basic check above
           $screen = get_current_screen();  
           if ( 'edit' != $screen->base && '' != $screen->action ){
   		return;
   	}
         	//now we can sure this is our page.
   	echo "<script type='text/javascript'>\n";
   	echo 'var pluginUrl = ' . wp_json_encode( WP_PLUGIN_URL . '/my_plugin/' ) . ';';
   	echo "\n</script>";
   }
   add_action( 'admin_print_footer_scripts', 'admin_footer_js' );