Replace the Post Excerpt Meta Box with a Field in My Custom Meta Box

Question

I've got a custom meta box for a custom post type which will be the only metabox I plan to show in the main column (except the native title box). I want to move the native Expert box/field inside my Custom Meta Box.

I'm able to create a field called Excerpt in my Meta Box, however I only know how to save this to the Custom Fields, not the original location that the native Except saves to.

Answer 1

Just name the field 'excerpt'.

E.g.:

<textarea name="excerpt" id="excerpt"><?php echo esc_html( '$post->post_excerpt' ); ?></textarea> <!-- if it is a textarea field -->

or

<input name="excerpt" id="excerpt" value="<?php echo esc_attr( '$post->post_excerpt' ); ?>" /> <!-- if it is a text field -->

Answer 2

This would be a function to update the post_excerpt with a field with the name 'my_custom_field'.

function my_custom_save_function($post_id){
    update_post(array('ID' => $post_id, 'post_excerpt' => $_POST['my_custom_field']));
}
add_action('save_post', 'my_custom_save_function');