There are many themes and plugins using jQuery as loaded by WP core. Every time jQuery is updated, there is a risk of older themes and plugins breaking (because lots of them are still used but no longer updated). That’s why you also see jquery-migrate.js in your source code. It’s a script that catches old … Read more
It’s best practice to always use prepare but the main use of it is to prevent against SQL injection attacks, and since there is no input from the users/visitors or they can’t effect the query then that is not an issue in your current example. But like I said before it’s best practice to use … Read more
If you take a look into the WordPress documentation you will find WordPress Taxonomies term_id is the ID of a term in the terms table term_taxonomy_id is a unique ID for the term + taxonomy pair.
For the record, I mainly make whole Web sites and plugins, and deploy them. My workflow is very Ruby- and git-heavy. To start out on a new project, I have a shell script which takes care of the whole business of setting up a new vhost and checking out the latest tag of WordPress (from … Read more
In backend there is global ajaxurl variable defined by WordPress itself. This variable is not created by WP in frontend. It means that if you want to use AJAX calls in frontend, then you have to define such variable by yourself. Good way to do this is to use wp_localize_script. Let’s assume your AJAX calls … Read more
Thanks for the answers guys. Though both answers set me on the right path, none worked out of the box. So I’m sharing my solutions below. Method 1 – Using register_activation_hook: Create the Parent Plugin in plugins/parent-plugin/parent-plugin.php: <?php /* Plugin Name: Parent Plugin Description: Demo plugin with a dependent child plugin. Version: 1.0.0 */ Create … Read more
I think you have to be a little careful because it depends on what you are trying to do. If you are using a child theme get_template_directory(); will still go to the parent theme. However get_stylesheet_directory(); will go to the current theme, child or parent. Also, both these functions return absolute server paths. If you … Read more
Short answer: your name attribute values must use the schema option_name[array_key]. So, when you use … <input name=”option_name[key1]”> <input name=”option_name[key2]”> … you get an array as option value in your validation function: array ( ‘key1’ => ‘some value’, ‘key2’ => ‘some other value’ ) PHP does that for you, this is not a WordPress feature. … Read more
The way to do this is to use the ‘admin_enqueue_scripts’ hook to en-queue the files you need. This hook will get passed a $hook_suffix that relates to the current page that is loaded: function my_admin_enqueue($hook_suffix) { if($hook_suffix == ‘appearance_page_theme-options’) { wp_enqueue_script(‘my-theme-settings’, get_template_directory_uri() . ‘/js/theme-settings.js’, array(‘jquery’)); wp_enqueue_style(‘my-theme-settings’, get_template_directory_uri() . ‘/styles/theme-settings.css’); ?> <script type=”text/javascript”> //<![CDATA[ var template_directory … Read more
This is what I generally use: <table class=”widefat fixed” cellspacing=”0″> <thead> <tr> <th id=”cb” class=”manage-column column-cb check-column” scope=”col”></th> // this column contains checkboxes <th id=”columnname” class=”manage-column column-columnname” scope=”col”></th> <th id=”columnname” class=”manage-column column-columnname num” scope=”col”></th> // “num” added because the column contains numbers </tr> </thead> <tfoot> <tr> <th class=”manage-column column-cb check-column” scope=”col”></th> <th class=”manage-column column-columnname” scope=”col”></th> … Read more