Output image with link from URL field for WP Job Manager Field Editor output

functions.php

<?php

// This assumes the meta key is "facebook_group" ... you must change this below if a different meta key
// format for the filter is field_editor_output_as_value_METAKEY
// You MUST set the output as to Value Only (NO HTML)
add_filter( 'field_editor_output_as_value_facebook_group', 'smyles_facebook_group_output_image' );

function smyles_facebook_group_output_image( $value ){

	if( empty( $value ) ) {
    	return $value;
	}

	return '<a href="' . $value . '" target="_blank"><img src="https://domain.com/facebook-group-icon.jpg"></a>';
}