Category: WordPress

Here are some JavaScript snippets to manipulate WP_Term objects in WordPress using the REST API and the Backbone JavaScript client library. Insert a term Delete a term This next example assumes you’ve used wp_localize_script() to make the REST API endpoint and a nonce available in an object myplugin. If you need help doing this, please…

For a ContactForm7 form that has this source: <div class=”wpcf7-lead-widget”>[text* contact-name maxlength:50 placeholder “Your Name (required)”] [email* email maxlength:50 placeholder “Email (required)”] [text phone maxlength:15 placeholder “Phone”] [vehicle_form_field] [textarea comments x3 placeholder “Questions and Comments”] [submit class:_button class:_button-small “Check Availability”] [hidden context id:context “contact”] [hidden do-not-send-mail]</div> The $posted_data that is passed via the wpcf7_posted_data hook…

Exporting a GravityView and importing it into a different site is easy, and there are official instructions right here. This process works very smoothly when the Gravity Forms and GravityViews on both sites are identical. That’s usually not the world I live in, however. I’m a back-end developer in sites that sometimes have multiple teams…

When using register_rest_field() to add fields to terms in the WordPress REST API, the $object sent to your get_callback function will be an array instead of an object like the documentation describes. An object will still be passed, sometimes, too. Here is an example of how I work around this problem: function add_api_term_fields() { //location-phone-hours…

Elementor Pro includes a form builder widget, complete with a webhook to which all form data can be sent and a redirect URL to send users after successful submissions. I have been tasked with adding a second webhook to a form because the first was being used for an integration with Zapier. We need to…

Take care when updating posts via the WordPress REST API to not send unchanged serialized meta values. The entire update will fail and return a 500 error. The JSON response looks like this: { “code”: “rest_meta_database_error”, “message”: “Could not update meta value in database.”, “data”: { “key”: “meta_key_name”, “status”: 500 } } This error comes…

WordPress 4.9.4 does not support the post_parent attribute in the REST API, so I wrote a plugin that does. Download here: https://github.com/csalzano/wp-api-add-post-parent Someday, WordPress core will allow the manipulation of the post_parent attribute, and I look forward to deleting this plugin and this blog post when they become obsolete. Until then, I believe this implementation resembles…

WooCommerce is a big plugin that ships with several JavaScript loading animations. There is no reason to roll your own when you need one. This week, I am hacking on WooCommerce to convert “Add to Cart” buttons to prevent redirecting users to different pages. Here’s a great tutorial I used to accomplish this goal. Without…

Yesterday, I needed to create a modal, but I didn’t want to create a modal. “Surely, this is already in WordPress.”Corey Salzano So, I went looking for a modal in WordPress core, and I was delighted when I found one. Thickbox is JavaScript library that was created more than one decade ago and began shipping with…

Logged out users of a website hosted at WPEngine may receive cached responses to REST API calls via the GET method. API calls work correctly while logged in, but paths in the /wp-json/ directory are cached like much like the rest of the front-end. How to prevent cached REST API responses As of June 2017,…

A few months ago, popular people in the WordPress community (including Matt) made a push to stop using the user name “admin.” A considerably-sized brute force attack targeted this user name specifically since so many users never change or create an administrator with another name. I followed the wisdom of the crowd and this post…