How to add custom metafields to custom classification in WordPress

Do you need to add custom metafields to custom taxonomy in WordPress?

Custom taxonomy allows you to organize content besides categories and tags. Sometimes it is useful to add other fields to describe them.

In this article, we will show you how to add other metafields to the taxonomy they create.

When should custom metafields be added to custom taxonomy?

When you create new content on your WordPress site, you can organize it using two default taxonomy (category and tag).

Some websites benefit from the use of custom taxonomy. These allow you to sort content in other ways.

For example, websites that publish book reviews can add "topic" and "author" taxonomy so that visitors can quickly find comments they are interested in.

For more information, see a guide on how to create a custom taxonomy in WordPress.

By default, each taxonomy has only three to four fields: name, slug, parent (if hierarchical), and description.

Sometimes it is useful to add other fields to better describe the taxonomy. For example, you can add the Year of Birth field to the Authors taxonomy.

That being said, here is how to add custom metafields to custom taxonomy in WordPress.

Adding custom metafields to custom classification in WordPress

First, you need to install and activate the Advanced Custom Fields Plugin. To learn more, see our step-by-step guide on how to install WordPress plug-ins.

Next, go to Custom Fields »Add New Page. Here you can add a field group that contains one or more new fields.

You will be asked to assign a title to the field group that will be displayed with the new field when you add or edit a taxonomy. In this tutorial, we want to add custom fields to the author category, so we name the field group "Author Details".

Once you have done this, you should click the Add Field button to add the field. A new form will appear where you can fill in the details of the new field.

After entering the field tag, the system will automatically create a field name for you, which you can edit as needed. You will need to use the field name later in this tutorial, so note it down.

You should now fill in additional details for the field, such as field type, description of the author who will fill out the form, and whether the field is required. Other options not shown in the screenshot include default text, placeholder text, character limits, and more.

If you want to add a second field, you should click the Add Field button and repeat the process. Otherwise, just scroll down to the Position section.

Here you can create rules that describe where the new field is displayed. You should select "Taxonomy" from the first drop-down menu and leave the intermediate field as "Equal to". Finally, select the correct custom taxonomy for the last field. In this tutorial, we will select "Author".

If you want to add this field to another taxonomy, you can click the Add Rule Group button and repeat the step.

Now you should adjust any other settings on the page. We just need to keep the default value. Once you're done, you should scroll to the top of the page and click the Publish button.

Congratulations, you have successfully added a custom metafield to your custom taxonomy in WordPress. But you have more work to do.

Add data to new custom metafields

Although the taxonomy has a new field, it does not contain any data yet. You should take some time to do this now.

In our example, we need to enter the birth year of each author. To do this, we need to navigate to Post » Author and click on the author name we want to edit.

After that, we can enter the data in the new field. In this case, we will enter the author's year of birth. Don't forget to click the "Update" button to store new data.

You should follow the same steps on the website to add the data to your custom taxonomy.

Once you're done, there's one more step to do. Although you can see a custom field when you log in to the WordPress admin area, visitors to your website will not be able to see it. You need to add this field to the archive page of the custom category.

Show custom metafields on category archive page

In this step, you need to add the code to the theme file. If you haven't done this before, see our beginner's guide on how to paste web clips into WordPress.

The first thing you need to do is go into the topic folder and look for the classified archive file. It will have a similar name taxonomy-YOURTAXONOMYNAME.php.

For example, if you have a custom taxonomy called "Author", then you need to look for a taxonomy-authors.php.

If you don't see the file, look for archive.php. You need to copy the file and name it as above.

Note : If your theme does not contain archive.php, you may be using the WordPress theme framework and you must create a classification archive manually. A great starting point for learning how to create archive files is our guide on how to create custom archive pages in WordPress.

Now you need to add the following code to the classification archive before the loop:

We hope this tutorial helps you understand how to add custom metafields to custom taxonomy in WordPress. You may also want to learn how to add keywords and meta descriptions in WordPress, or check out our list of must-have plugins to extend your site.

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