//delete dosage via dosage id
 public string Delete(int id)
 {
     using (ThyroidDataEntities entities = new ThyroidDataEntities())
     {
         drug_dosage drugdose = entities.drug_dosage.Find(id);
         entities.drug_dosage.Remove(drugdose);
         entities.SaveChanges();
         return("Deleted Successfully");
     }
 }
        //get one dosage info via report_id (OBSOLETE)
        //public drug_dosage Get(int id)
        //{
        //    using (ThyroidDataEntities entities = new ThyroidDataEntities())
        //     {
        //         return entities.drug_dosage.FirstOrDefault(e => e.report_id == id);
        //     }
        // }

        //add dosage
        public void POST(drug_dosage drugdoses)
        {
            using (ThyroidDataEntities entities = new ThyroidDataEntities())
            {
                entities.drug_dosage.Add(drugdoses);


                entities.SaveChanges();
            }
        }
        //update dosage after report
        public void PUT(int id, drug_dosage drug)
        {
            using (ThyroidDataEntities entities = new ThyroidDataEntities())
            {
                var dosage = entities.drug_dosage.Find(id);
                dosage.drug_name  = drug.drug_name;
                dosage.drug_dose  = drug.drug_dose;
                dosage.drug_days  = drug.drug_days;
                dosage.patient_id = drug.patient_id;
                dosage.drug_img   = drug.drug_img;
                dosage.remarks    = drug.remarks;

                entities.Entry(dosage).State = System.Data.Entity.EntityState.Modified;
                entities.SaveChanges();
            }
        }