Can get all the memberships of a user at once

RestControllers/WebAppController.php

@@ -0,0 +1,81 @@
+<?php
+/**
+ * Web application controller
+ * 
+ * Methods specifically targetting the web application
+ * 
+ * @author Pierre HUBERT
+ */
+
+class WebAppController {
+
+	// Kins of membership
+	const MEMBERSHIP_FRIEND = "friend";
+	const MEMBERSHIP_GROUP = "group";
+
+	public function __construction() {
+		user_login_required();
+	}
+
+	/**
+	 * Get all the memberships of the user, sorted by last activity order
+	 * 
+	 * @url POST /webApp/getMemberships
+	 */
+	public function getMemberships() {
+
+		// Get the list of friends of the user
+		$friends = components()->friends->getList(userID);
+
+		// Get the list of groups of the user
+		$groups = components()->groups->getListUser(userID);
+
+		// Get last activities of groups
+		$groups_activity = array();
+		foreach($groups as $group)
+			$groups_activity[components()->groups->getLastActivity($group)] = $group;
+		krsort($groups_activity);
+		$groups = array();
+		foreach($groups_activity as $activity => $id)
+			$groups[] = array("id" => $id, "activity" => $activity);
+
+		$out = array();
+		while(count($friends) != 0 || count($groups) != 0) {
+
+			if(count($friends) == 0)
+				$type = self::MEMBERSHIP_GROUP;
+			
+			else if(count($groups) == 0)
+				$type = self::MEMBERSHIP_FRIEND;
+			
+			else if($friends[0]->getLastActivityTime() > $groups[0]["activity"])
+				$type = self::MEMBERSHIP_FRIEND;
+			
+			else
+				$type = self::MEMBERSHIP_GROUP;
+			
+			// In case of friend
+			if($type == self::MEMBERSHIP_FRIEND){
+				$out[] = array(
+					"type" => $type,
+					"friend" => friendsController::parseFriendAPI(array_shift($friends))
+				);
+			}
+
+			// In case of group
+			else {
+				$info = array_shift($groups);
+				$out[] = array(
+					"type" => $type,
+					"id" => $info["id"],
+					"last_activity" => $info["activity"]
+				);
+			}
+
+		}
+
+
+		return $out;
+	}
+
+}

classes/components/GroupsComponent.php

@@ -172,6 +172,25 @@ class GroupsComponent {
 		return $this->dbToAdvancedGroupInfo($info[0], null, TRUE);
 	}
 
+	/**
+	 * Get the timestamp of the estimated last activity on the group
+	 * 
+	 * @param int $id The ID of the target group
+	 * @return int The time of last activity on the group
+	 */
+	public function getLastActivity(int $id) : int {
+
+		// Query the database
+		$posts = components()->posts->getGroupPosts($id, true, 0, 1);
+
+		if(count($posts) == 0)
+			return 0;
+
+		else
+			return $posts[0]->get_time_sent();
+
+	}
+
 	/**
 	 * Get a group settings
 	 *