Created remove a friend method

RestControllers/friendsController.php

@@ -56,4 +56,27 @@ class friendsController{
 		return array("success" => "A response was given to friendship request !");
 	}
 
+	/**
+	 * Delete a friend from the list
+	 *
+	 * @url POST /friends/remove
+	 */
+	 public function delete(){
+		 user_login_required(); //Login required
+
+		 //Check input parametres
+		 if(!isset($_POST['friendID']))
+		 	Rest_fatal_error(400, "Please specify the ID of the friend to delete !");
+			
+		//Delete the friend from the list
+		$friendID = toInt($_POST['friendID']);
+		$result = CS::get()->components->friends->remove(userID, $friendID);
+
+		//Check if the operation is a result
+		if(!$result)
+			Rest_fatal_error(500, "Couldn't remove user from the friendlist for an unexcepted reason !");
+		else
+			return array("success" => "The friend was removed from the list !");
+	 }
+
 }

classes/DBLibrary.php

@@ -487,7 +487,7 @@ class DBLibrary {
      * @param Array $conditionsValues The values of condition
      * @return Boolean  True if succeed
      */
-    public function deleteEntry($tableName, $conditions = false, array $conditionsValues = array()) {
+    public function deleteEntry(string $tableName, $conditions = false, array $conditionsValues = array()) : bool {
         //We try to perform the task
         try{
             //We check if any database is opened

classes/components/friends.php

@@ -144,6 +144,26 @@ class friends {
 		else
 			return count($results) === 1;
 	}
+
+	/**
+	 * Remove a friend from the firends list
+	 *
+	 * @param int $userID The ID of the user who delete the friend
+	 * @param int $friendID The ID of the friend that is being removed from the list
+	 * @return bool True if the user was successfully removed / false else
+	 */
+	public function remove(int $userID, int $friendID) : bool {
+
+		//Delete the friend from the database
+		$tableName = $this->friendsTable;
+		$conditions = "(ID_personne = ? AND ID_amis = ?) OR (ID_personne = ? AND ID_amis = ?)";
+		$condValues = array($userID, $friendID, $friendID, $userID);
+
+		//Try to perform the request
+		$success = CS::get()->db->deleteEntry($tableName, $conditions, $condValues);
+
+		return $success;
+	}
 }
 
 //Register component