public IActionResult Save([FromBody] Revues r)
 {
     try
     {
         return(Ok(this.repo.Save(r)));
     }
     catch (Exception e)
     {
         return(BadRequest(e.Message));
     }
 }
 public IActionResult Update(Revues r)
 {
     try
     {
         return(Ok(this.repo.Update(r)));
     }
     catch (Exception e)
     {
         return(BadRequest(e.Message));
     }
 }