Special field shortcode

The field is not added to the database because the plugin doesn’t know what the shortcode does.

The next step is to append the new date to the other fields:

/**
 * Add datepicker field to new testimonial post meta fields.
 * 
 * @param $new_meta array
 *
 * @return array
 */
function custom_datepicker_add_meta( $new_meta ) {
  if ( isset( $_POST['datepicker1'] ) && $_POST['datepicker1'] ) {
    $new_meta['datepicker1'] = $_POST['datepicker1'];
  }
  return $new_meta;
}
add_filter( 'wpmtst_new_testimonial_meta', 'custom_datepicker_add_meta' );

You will need another shortcode to retrieve and display the date.

A simpler approach would be to use a plain text field and attach the datepicker to that.

function my_datepicker( $atts ) {
  wp_enqueue_script( 'jquery-ui-datepicker' );
  ?>
  <script>
    jQuery(function () {
      // use your date field's id
      jQuery('#wpmtst_newdate').datepicker({})
    })
  </script>
  <?php
}
add_action( 'wpmtst_form_rendered', 'my_datepicker' );

That will make the date field available in the post meta box and the view editor so you can display it like any other field.

@chris Dillon

Thanks alot for your help. Much appreciated

First filter function which you gave is working perfectly fine.
Can you please tell where to put function(hook:wpmtst_form_rendered) for display( i mean file wherein i can put)
Also i was trying to display date stored in db on testimonial slider which is available by default along with rest of the fields.
Do i need to write shortcode( consisting of wp_query) to fetch date for each postid everytime??

Let’s take a step back.

If you want to add a date field, you don’t need to use a shortcode field.

Instead, try this. Add a plain text field and attach datepicker to it using the second function above. That would go in your theme’s functions.php or an mu-plugin. Change “newdate” to your field name.

Then the date field will be available everywhere with the rest of the fields.

Does that make sense?

Yes that sounds good . I dint think that way.
You are awesome ?? Thank you sooo much