[wp-trac] [WordPress Trac] #40954: Create Category within posts screen error

[WordPress Trac]

#40954: Create Category within posts screen error
-------------------------------+-------------------------
 Reporter:  cfastenrath        |       Owner:  (none)
     Type:  defect (bug)       |      Status:  closed
 Priority:  normal             |   Milestone:
Component:  Posts, Post Types  |     Version:  4.8
 Severity:  normal             |  Resolution:  invalid
 Keywords:  close              |     Focuses:  javascript
-------------------------------+-------------------------

Comment (by janiewp):

 To address the JavaScript error you're encountering when creating a new
 category within the "create posts" screen in WordPress, you'll need to
 make adjustments to the JavaScript code responsible for handling the
 response from the admin-ajax call. Below is a sample code snippet
 demonstrating how you might handle the response:


 {{{
 // Assuming this code is within a JavaScript file or script tag in your
 WordPress admin interface

 // Function to handle the response from the admin-ajax call
 function handleResponse(response) {
     try {
         // Parse the response as JSON
         var data = JSON.parse(response);

         // Check if data is defined and contains the necessary information
         if (data && data.category && data.category.id) {
             // Access the newly created category ID
             var categoryId = data.category.id;

             // Update the category list or perform any necessary actions
             // For example, you can append the new category to the
 category list
             var categoryHTML = data.category.response_data;
             jQuery('#categorychecklist').append(categoryHTML);

             // Update the new category parent select box
             var parentSelectHTML =
 data.category.supplemental.newcat_parent;
             jQuery('#newcategory_parent').html(parentSelectHTML);

             // Optional: You can trigger a refresh or update of the page
 if necessary
             location.reload(true);
         } else {
             // Handle the case where the necessary data is missing from
 the response
             console.error("Error: Invalid response format.");
         }
     } catch (error) {
         // Handle any errors that occur during parsing or processing the
 response
         console.error("Error:", error);
     }
 }

 // Example of how to make the admin-ajax call
 jQuery.ajax({
     url: ajaxurl,
     type: 'POST',
     data: {
         action: 'add-category', // Replace 'add-category' with the actual
 action name
         // Include any necessary data for creating the category
         // For example, you might include the category name and parent ID
         category_name: 'New Category',
         parent: 0 // Replace 0 with the actual parent category ID if
 applicable
     },
     success: function(response) {
         // Handle the response when the request is successful
         handleResponse(response);
     },
     error: function(xhr, status, error) {
         // Handle any errors that occur during the request
         console.error("Error:", error);
     }
 });

 }}}


 Please note the following:

 Replace 'add-category' with the actual action name used in your WordPress
 admin-ajax call.
 Adjust the data sent in the jQuery.ajax call according to your specific
 requirements.
 Ensure that the response from the admin-ajax call is in the expected
 format and contains the necessary information for updating the category
 list and parent select box.
 This code assumes the use of jQuery for making AJAX requests and
 manipulating the DOM. If you're using a different library or framework,
 adjust the code accordingly.

-- 
Ticket URL: <https://core.trac.wordpress.org/ticket/40954#comment:4>
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