Ninja Forms AWeber: Custom error messages

nf-aweber-custom-error-messages.php

/* 
 * Custom AWeber Error Messages
 *
 * @param $msg - current message from Ninja Forms for AWeber
 * @param $error_code - null, placeholder for when AWeber gets error codes
 * @param $error_message - original message from AWeber
 * @param $subscriber - array of info about the subscriber submitted via form 
 * -- nb the form's ID can be found in $subscriber['form_id'] 
 * @param $list_id the list ID
 */
function nf_change_aweber_error( $new_message, $error_code, $error_message, $subscriber, $list_id ){
	switch( $error_message ){
		case strpos( $error_message, 'Consumer key is invalid' ) !== false :
		    		$new_message = __( "You aren't connected!", 'your-text-domain' );
		    		break;
		    	case strpos( $error_message, 'Subscriber already subscribed' ) !== false :
		    		$new_message = __( "Dude, you're already on this list.", 'your-text-domain' );
		    		break;
		    	case strpos( $error_message, 'Email address blocked' ) !== false :
		    		$new_message = __( "We can't accept that email adddress", 'your-text-domain' );
		    		break;
		    	default:
		    		$new_message = __( "Something broke", 'your-text-domain' );
		    	
	return $new_message;
}
add_filter( 'ninja_forms_aweber_subscribe_error_message', 'nf_change_aweber_error', 10, 5 );