In spite of no ‘official’ answers, this question is still rather popular, so a year later I will post my solidified thoughts on this. What led to this question is the experience of code working in some places, and not in others. For instance, why was I having to wrap code within a function in … Read more
Well, ended up fixing this after hours of banging my head against ones keyboard. Fixed by making the first parameter of my hooked function a value instead of a reference – curious when nearly all hooks in wordpress pass the error object by reference! function validatePasswordReset( &$errors, $userData ) { return validateComplexPassword( $errors ); } … Read more
This is actually not hard. To add a new capability, call WP_Roles->add_cap(). You have to do this just once, because it will be stored in the database. So we use a plugin activation hook. Note to other readers: All of the following code is plugin territory. register_activation_hook( __FILE__, ‘epp_add_cap’ ); /** * Add new capability … Read more
I think it’s impossible to give a definitive answer here, because choices like this are personal preference. Consider that what follows is my approach, and I have no presumption it is the right one. What I can say for sure is that you should avoid your third option: Just return null/false This is bad under … Read more
What you can do is this: Put up.php in your active theme’s folder, and put this line at the top of your up.php file: <?php /* Template Name: Up */ ?> Create a page called Up in your WordPress Dashboard, then on the right side of the edit page screen, set the Template to ‘Up’. … Read more
I have taken a look at the source, unfortunately I haven’t seen a nice way to pass the information without saving it. Which sucks – big time – because this really isn’t anything that needs to be saved. A workaround would be to enable PHP Sessions by putting the following at the beginning of your … Read more
When it comes to unit testing themes, it’s a small jungle. I read on Make WordPress Core that things are changing (http://make.wordpress.org/core/2013/08/06/a-new-frontier-for-core-development/). I searched for blogs linking to that specific post in hope to find some useful. Found this: http://ben.lobaugh.net/blog/84669/how-to-add-unit-testing-and-continuous-integration-to-your-wordpress-plugin that looks promising. Note that it focuses on plugin testing, but useful for theme unit … Read more
No you don’t need esc_attr() function to print out fixed static text. You only need it to print out dynamic or generated text, so that if the attributes have any special characters that may break your HTML, esc_attr will escape that properly. In your particular case, you can just write: echo ‘<label><input type=”checkbox” id=”custom_header” name=”custom_header” … Read more
Your WP_List_Table will be different — this was adapted from WP_List_Table – a step by step guide and using the GIST: Sample plugin for usage of WP_List_Table class (complete version). You’ll want to adjust your methods to include CSS on the front-end as well (not included in this answer). WARNING : Since this class is … Read more
It’s a PHP callback. You need the syntax to keep a reference to the class instance. Put it this way – if you didn’t have $this, how does the caller know that getStuffDone is a method of your class, and not just a regular PHP function? It doesn’t. Using array( $this, ‘getStuffDone’ ) says to … Read more