public IHttpActionResult Putcampaignmaterial(int id, campaignmaterial campaignmaterial)
        {
            if (!ModelState.IsValid)
            {
                return(BadRequest(ModelState));
            }

            if (id != campaignmaterial.ID)
            {
                return(BadRequest());
            }

            db.Entry(campaignmaterial).State = EntityState.Modified;

            try
            {
                db.SaveChanges();
            }
            catch (DbUpdateConcurrencyException)
            {
                if (!campaignmaterialExists(id))
                {
                    return(NotFound());
                }
                else
                {
                    throw;
                }
            }

            return(StatusCode(HttpStatusCode.NoContent));
        }
        public IHttpActionResult Getcampaignmaterial(int id)
        {
            campaignmaterial campaignmaterial = db.campaignmaterials.Find(id);

            if (campaignmaterial == null)
            {
                return(NotFound());
            }

            return(Ok(campaignmaterial));
        }
        public IHttpActionResult Postcampaignmaterial(campaignmaterial campaignmaterial)
        {
            if (!ModelState.IsValid)
            {
                return(BadRequest(ModelState));
            }

            db.campaignmaterials.Add(campaignmaterial);
            db.SaveChanges();

            return(CreatedAtRoute("DefaultApi", new { id = campaignmaterial.ID }, campaignmaterial));
        }
        public IHttpActionResult Deletecampaignmaterial(int id)
        {
            campaignmaterial campaignmaterial = db.campaignmaterials.Find(id);

            if (campaignmaterial == null)
            {
                return(NotFound());
            }

            db.campaignmaterials.Remove(campaignmaterial);
            db.SaveChanges();

            return(Ok(campaignmaterial));
        }