Generate unique slug for the group when provided group slug exists

js/group-url.js

@@ -1,6 +1,6 @@
 (function($){
 	var $errorFormat, $errorTaken, $nameField, $urlField, $urlFieldParent;
-	var isValid, isTaken;
+	var isValid, uniqueUrlTimer;
 
 	$(document).ready(function(){
 		isValid = isAvailable = false;
@@ -49,6 +49,11 @@
 			toggleError();
 		});
 
+		// Cancel uniqueURL event if user started typing.
+		$urlField.on( 'keydown', function() {
+			clearTimeout(uniqueUrlTimer);
+		} );
+
 		// Only run the AJAX request on blur.
 		$urlField.on( 'blur', function() {
 			// No value? Nothing to check.
@@ -79,6 +84,8 @@
 					} else {
 						isAvailable = false;
 						$errorTaken.removeAttr( 'aria-hidden' );
+
+						uniqueUrl( response.data );
 					}
 					toggleError();
 				}
@@ -94,5 +101,17 @@
 				$ajaxStatus.removeClass('fa-check').addClass('fa-exclamation-circle');
 			}
 		}
+
+		var uniqueUrl = function( slug ) {
+			uniqueUrlTimer = setTimeout( function() {
+				$urlField.val( slug );
+
+				// Remove Error
+				isAvailable = true;
+				isValid = true;
+				$errorTaken.attr( 'aria-hidden', 'true' );
+				toggleError();
+			}, 5000 );
+		}
 	});
 }(jQuery));

lib/group-funcs.php

@@ -886,8 +886,8 @@ function openlab_ajax_group_url_validate() {
 	$found = groups_get_id( $url );
 
 	if ( $found && $found !== $group_id ) {
-		// Try to get a unique slug for the group.
-		wp_send_json_error();
+		$unique_slug = openlab_unique_group_slug( $url );
+		wp_send_json_error( $unique_slug );
 	} else {
 		wp_send_json_success();
 	}
@@ -1385,7 +1385,6 @@ function openlab_previous_step_type( $url ) {
 add_filter( 'bp_get_group_creation_previous_link', 'openlab_previous_step_type' );
 
 /**
-	>>>>>>> 1.3.x
  * Remove the 'hidden' class from hidden group leave buttons
  *
  * A crummy conflict with wp-ajax-edit-comments causes these items to be
@@ -2638,3 +2637,44 @@ function openlab_group_avatar_script_data( $script_data ) {
 	return $script_data;
 }
 add_filter( 'bp_attachment_avatar_script_data', 'openlab_group_avatar_script_data' );
+
+/**
+ * Generate unique slug for group.
+ *
+ * @param string $slug Desired slug.
+ * @return string      Unique slug for the group.
+ */
+function openlab_unique_group_slug( $slug ) {
+	global $wpdb, $bp;
+
+	$suffix = 2;
+	$slug   = sanitize_title( $slug );
+
+	$group_slugs = $wpdb->get_col( $wpdb->prepare( "SELECT slug FROM {$bp->groups->table_name} WHERE slug LIKE %s", $slug . '%' ) );
+
+	if ( empty( $group_slugs ) ) {
+		return "$slug-$suffix";
+	}
+
+	// Get all suffixes from the group slugs.
+	$suffixes = array_reduce( $group_slugs, function( $carry, $slug ) {
+		$parts = explode( '-', $slug );
+
+		// String will be covnerted to 0.
+		$carry[] = (int) end( $parts );
+
+		return $carry;
+	} );
+	$suffixes = array_filter( array_unique( $suffixes ) );
+
+	// Slugs have no suffixes. Return default suffix (-2).
+	if ( empty( $suffixes ) ) {
+		return "$slug-$suffix";
+	}
+
+	// Assume the highest suffix is the last one.
+	$last   = max( $suffixes );
+	$suffix = ++$last;
+
+	return "$slug-$suffix";
+}