//[AdminAuthorization]
        public IHttpActionResult PutClass([FromBody] Class c, [FromUri] int id)
        {
            c.classid = id;
            classrepo.Edit(c);

            c.HyperLinks.Add(new HyperLink()
            {
                HRef = "http://localhost:44347/api/admins/classes/" + c.classid, HttpMethod = "GET", Relation = "Self"
            });
            c.HyperLinks.Add(new HyperLink()
            {
                HRef = "http://localhost:44347/api/admins/classes/", HttpMethod = "POST", Relation = "Create Class"
            });
            c.HyperLinks.Add(new HyperLink()
            {
                HRef = "http://localhost:44347/api/admins/classes/" + c.classid, HttpMethod = "PUT", Relation = "Edit Class"
            });
            c.HyperLinks.Add(new HyperLink()
            {
                HRef = "http://localhost:44347/api/admins/classes/" + c.classid, HttpMethod = "Delete", Relation = "Delete Class"
            });


            return(Ok(c));
        }