public async Task<IHttpActionResult> PutExcerciseDictionary(int id, ExcerciseDictionary excerciseDictionary)
        {
            if (!ModelState.IsValid)
            {
                return BadRequest(ModelState);
            }

            if (id != excerciseDictionary.Id)
            {
                return BadRequest();
            }

            _ctx.Entry(excerciseDictionary).State = EntityState.Modified;

            try
            {
                await _ctx.SaveChangesAsync();
            }
            catch (DbUpdateConcurrencyException)
            {
                if (!ExcerciseDictionaryExists(id))
                {
                    return NotFound();
                }
                else
                {
                    throw;
                }
            }

            return StatusCode(HttpStatusCode.NoContent);
        }
        public async Task<IHttpActionResult> PostExcerciseDictionary(ExcerciseDictionary excerciseDictionary)
        {
            if (!ModelState.IsValid)
            {
                return BadRequest(ModelState);
            }

            _ctx.ExcerciseDictionaries.Add(excerciseDictionary);
            await _ctx.SaveChangesAsync();

            return CreatedAtRoute("DefaultApi", new { id = excerciseDictionary.Id }, excerciseDictionary);
        }