• sjwright

• in reply to: Get_fields() returns false until I update the post
• December 21, 2014 at 9:55 pm

Ignore me! I fixed it! I read on the API page that when creating the post programatically, I need to use $field_key instead of $field_name as the first param of update_field().

I’ve written a little utility function for anyone else who wants to use the $field_name instead of $field_key when programatically adding a post and then a custom field value.

The $params argument is the array used when calling register_field_group(), $field_name is obviously the field name.

	
// Function to get an ACF Key for a field based on the params used to create the fieldset
	function acf_field_key($params = array(), $field_name) {
		
		if (empty($params) or !isset($params['fields'])) {
			
			return $field_name;
		}
		
		// Loop and find the value
		foreach ($params['fields'] as $field) {
			
			if ($field['name'] == $field_name) {
				
				return $field['key'];
			}
		}
	}

Usage:

$field_key = acf_field_key($acf_init_args, $field_name);

update_field($field_key, $value, $post_id);