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I added an extra field (dropdown list with select options), when the user creates or edits a category from the WordPress dashboard. I am also able to store the selected value in the wp_termmeta table. However, I need to display the selected value from the dropdown list after page refresh. I am using the functions get_term_meta() and update_post_meta(), however get_term_meta() always returns false and I cannot assign a selected value for any of the options:

function changePostOrder(){

    $post_order = get_term_meta($_POST['tag_ID'], 'post-order', true);

    var_dump($post_order); // $post_order returns false, while it should return oldest or newest
    ?>

    <tr class="form-field">
        <th scope="row" valign="top"><label for="post-order"><?php _e('Post Order'); ?></label></th>
        <td>

        <select name="post-order" id="post-order">
            <option <?php if ($post_order == 'oldest') { ?>selected="true" <?php }; ?>value="oldest">oldest</option>
            <option <?php if ($post_order == 'newest') { ?>selected="true" <?php }; ?>value="newest">newest</option>
        </select>
        </td>
    </tr>

    <?php

}
add_action ( 'edit_category_form_fields', 'changePostOrder');

As a result, after page refresh the dropdown list is again the same (oldest is selected), even though in the database the meta_value column is "newest". Am i doing something wrong? I am using the same approach as suggested in the second answer here.

  • You should be using$_GET, not $_POST. – Jacob Peattie Sep 28 '19 at 2:31
  • This solved the issue! Thank you very much. – Badan Sep 29 '19 at 16:21

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