validation

Validate an option array

What you need to do is build your own data validation function. Ozh wrote a great tutorial about this earlier, but here’s the gist of it … Assume your options array is called $my_options and it contains three fields, ‘text’, ‘age’, and ‘isauthorized’. You would still register it the same way: register_setting( ‘my_setting’, ‘my_options’, ‘my_validation_function’ … Read more

Shortcode putting html such as

This behavior is most likely intended, and can be disabled. However it might break other features too. There are a couple of workarounds, that you can try. Break the Image URL and File Name You can pass the arguments to your shortcode in the following way: [theimg path=”https://s.w.org/about/images/logos/” filename=”wordpress-logo-simplified-rgb.png” ] This will prevent the editor … Read more

edit profile validation refreshes all field if missing wordpress

Approach 1, disable save button What you can do, is to prevent the user from saving the form if the required fields are not filled. This can be simply done via javascript. function require_fields_script(){ echo ” <script type=”text/javascript”> (function($){ $(‘#submit’).on(‘click’,function(e){ if (!$(‘#email’).val() || !$(‘#nickname’).val()){ e.preventDefault(); if (!$(‘#email’).val()) { window.alert(‘Please enter your email before saving.’); } … Read more

Require featured image

I would do this by hooking into the save_post action, not by javascript. The main idea is to check if both values are there (Your Radiobutton is selected AND the post_thumbnail is present), and set the post to draft if they are not, as well as displaying an Information if the user does not fulfill … Read more

How to define a query parameter with REST API?

Yes, from the link you posted there are examples for both sanitising and validating the parameters. Validating does a check which can fail and block the API call from running; sanitising just does some operations to clean or interpret the parameter and does not stop the API call from running. An example of validation, taken … Read more

How can I make post fields required in WordPress?

Fairly simple using jQuery and global $typenow ex: add_action(‘admin_print_scripts-post.php’, ‘my_publish_admin_hook’); add_action(‘admin_print_scripts-post-new.php’, ‘my_publish_admin_hook’); function my_publish_admin_hook(){ global $typenow; if (in_array($typenow, array(‘post’,’page’,’mm_photo ‘))){ ?> <script language=”javascript” type=”text/javascript”> jQuery(document).ready(function() { jQuery(‘#post’).submit(function() { if (jQuery(“#set-post-thumbnail”).find(‘img’).size() > 0) { jQuery(‘#ajax-loading’).hide(); jQuery(‘#publish’).removeClass(‘button-primary-disabled’); return true; }else{ alert(“please set a featured image!!!”); jQuery(‘#ajax-loading’).hide(); jQuery(‘#publish’).removeClass(‘button-primary-disabled’); return false; } return false; }); }); </script> <?php } … Read more

WordPress REST API validation

There is no such maxLength option in the WP REST API. You can pass a validate_callback though. Example: <?php add_action( ‘rest_api_init’, function () { register_rest_route( ‘myplugin/v1’, ‘/author/(?P<id>\d+)’, array( ‘methods’ => ‘GET’, ‘callback’ => ‘my_awesome_func’, ‘args’ => array( ‘id’ => array( ‘validate_callback’ => function($param, $request, $key) { return is_numeric( $param ); } ), ), ) ); … Read more

Server side validation

You can capture the form submission by creating a small plugin / or by editing your theme functions file, and you can do this using a ajax hook. In the plugin you would load this on the edit post page: jQuery(document).ready(function(){ jQuery(‘#post’).submit(function(){ var request = jQuery(this).serializeArray(); request.push({name: ‘action’, value: ‘check_some_stuff’}); jQuery.post(ajaxurl, request, function(response){ if(response.error){ response … Read more

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