Front end post update post meta

• viorelepuran

• March 7, 2018 at 6:19 am

Hello,

I created a front end form, whitch looks like this:

<?php 
$new_post = array(
 'post_id' => 'new',
 'field_groups' => array(57),
 'form' => true,
 'return' => '%post_url%',
 'html_before_fields' => '',
 'html_after_fields' => '',
 'submit_value' => 'Submit Post',
 'updated_message' => 'Saved!'
 );
 acf_form( $new_post );
?>

<script type="text/javascript">
jQuery(document).ready(function($) {
    var ajaxUrl = "SITE_ADMIN_URL/admin-ajax.php";
	$(".acf-button").on("click",function(){ // When btn is pressed.
	var selected_model = $("#acf-field-area option:selected").text();
		if(selected_model ){
			$.post(ajaxUrl, {
					action:"the_model",
					selected_model: selected_model
	        });
		}
    });
});
</script>

In functions.php i have added the following function:

add_filter('acf/save_post', 'add_car_model', 20);

function add_car_model($post_id) {
  $post_type = get_post_type($post_id);
  if ($post_type != 'cars') {
    // not our post type, bail early
    return;
  }
 
 
        $selected_model = $_POST['selected_model'];
        add_post_meta($post_id, 'car_model', '');
        update_post_meta($post_id, 'car_model', $selected_model);

}

I have a select dropdown called Make, and based on the make, i am loading values into Model dropdown, which is custom dropdown.

Using javascript, i managed to get the correct model value(tested it using on change and alert();) but i do not know how to pass the model value into the post’s meta data.

Thank you for looking into this!

• Beee

• March 7, 2018 at 6:41 am

Have you actually tried to dump $_POST ? You then would have seen the contents and would have seen that $_POST[‘selected_model’] does not exist.

To retrieve a posted value, you need to look into $_POST[ ‘acf’ ]. In it you will find the field keys (not the names).

So you need to check what the field key is for your field.

Then do something like this:

if ( ! empty( $_POST[ 'acf' ][ 'field_5a0de683a21cf' ] ) {
    update_post_meta($post_id, 'car_model', 'field_key' );
}

• viorelepuran

• March 7, 2018 at 6:16 pm

Thank you!

I forgot to mention that the MODEL field was not a ACF field. I have added the MODEL field a acf-field_xxxx identifier, and now it works as intended.

Thank you for taking your time to answer me!