Can get the number of unread notifications

RestControllers/notificationsController.php

@@ -0,0 +1,30 @@
+<?php
+/**
+ * Notifications REST controller
+ * 
+ * @author Pierre HUBERT
+ */
+
+class notificationsController {
+
+
+	/**
+	 * Get the number of unread notifications of a user
+	 * 
+	 * @url POST notifications/count_unread
+	 */
+	public function count_unread(){
+
+		user_login_required();
+
+		//Get the number of unread notifications
+		$number = components()->notifications->count_unread(userID);
+
+		//Return it
+		return array(
+			"number" => $number
+		);
+
+	}
+
+}

classes/components/notifications.php

@@ -13,6 +13,24 @@ class notificationComponent {
 	 */
 	const NOTIFICATIONS_TABLE = "comunic_notifications";
 
+	/**
+	 * Count the number of unread notifications of a user
+	 * 
+	 * @param int $userID Target user ID
+	 * @return int The number of unread notifications
+	 */
+	public function count_unread(int $userID) : int {
+
+		//Set the conditions of the request
+		$conditions = "WHERE dest_user_id = ? AND seen = 0";
+		$values = array($userID);
+
+		//Compute and return result
+		return CS::get()->db->count(self::NOTIFICATIONS_TABLE, $conditions, $values);
+
+	}
+
+
 	/**
 	 * Push a new notification
 	 *