Add Private Note Fields In Post Edit Page For WordPress

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    Original Post

    Add Private Note Fields In Post Edit Page For WordPress


    Add Private Note Field In Post Edit Page For WordPress

    First, let’s add a meta box in post edit page, like the Custom Pos Options. You can find I customized several options and gadgets. Yap, I am a lazy guy.

    add_action( 'add_meta_boxes', 'custom_post_option_meta_box' );
    function custom_post_option_meta_box() {
        add_meta_box(
            'custom_post_option_meta_group',
            'Custom Post Options',
            'custom_post_option_meta_box_callback',
            'post'
        );
    }

    After adding a meta box, we add callback further. Callback means the content for the meta box.

    function custom_post_option_meta_box_callback($post){
    
      $post_id = $post->ID; ?>
    
      <?php $modified_date_switch = get_post_meta($post_id,'show_modified_date', true ); ?>
      <div class="meta_box_item">
        <label>Show Modified Date</label>
        <input type="checkbox" name="show_modified_date" <?php echo ($modified_date_switch) ? 'checked' : ''; ?>>
      </div>
    
      <?php $private_note = get_post_meta( $post_id, '_private_note', true ); ?>
      <div class="meta_box_item">
        <label>Private Note</label>
        <textarea id="private_note" name="private_note"><?php echo $private_note; ?></textarea>
      </div>
      <?php
    }
    

    Finally, we save the value of custom filed as a post meta. Without this, all your content won’t be written to database.

    add_action('save_post', 'save_post_private_note');
    function save_post_private_note( $post_id ) {
      if ( isset($_POST['private_note']) ) {
    		update_post_meta($post_id, '_private_note', esc_textarea($_POST['private_note']));
      }
    }

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    Aron

    A data scientist working in a retail company, with experience in web design and marketing. Recently dives into cryptocurrency and quantitative investing.

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