Реализовал логику для специальностей

Medical/MedicalBusinessLogic/BusinessLogics/SpecializationLogic.cs

@@ -0,0 +1,53 @@
+using MedicalDatabaseContracts;
+using MedicalDatabaseContracts.Models;
+using MedicalDatabaseContracts.SearchModels;
+using MedicalDatabaseContracts.ViewModels;
+using Microsoft.Extensions.Logging;
+
+namespace MedicalBusinessLogic.BusinessLogics
+{
+    public class SpecializationLogic : AbstractLogic<Specialization, SpecializationViewModel, SpecializationSearchModel>
+    {
+        public SpecializationLogic(
+            ILogger<AbstractLogic<Specialization, SpecializationViewModel, SpecializationSearchModel>> logger,
+            IStorage<Specialization> storage) : base(logger, storage) { }
+
+        protected override bool CheckModelBySearchModel(Specialization model, SpecializationSearchModel searchModel)
+        {
+            if (searchModel.Id != null && searchModel.Id != model.Id)
+                return false;
+            if (!string.IsNullOrEmpty(searchModel.Name) && searchModel.Name != model.Name)
+                return false;
+            if (searchModel.IsPediatric != null && searchModel.IsPediatric != model.IsPediatric)
+                return false;
+            if (searchModel.IsTherapeutic != null && searchModel.IsTherapeutic != model.IsTherapeutic)
+                return false;
+            return true;
+        }
+
+        protected override void CheckModelIsValid(Specialization model)
+        {
+            if (model == null)
+            {
+                throw new ArgumentNullException(nameof(model));
+            }
+            else if (string.IsNullOrEmpty(model.Name))
+            {
+                throw new ArgumentNullException(nameof(model.Name));
+            }
+            else if (ReadList(new SpecializationSearchModel { Name = model.Name }).Count != 0)
+            {
+                throw new InvalidOperationException($"Специальность с таким названием уже есть: \"{model.Name}\"");
+            }
+        }
+
+        protected override SpecializationViewModel GetViewModel(Specialization model)
+        {
+            return new SpecializationViewModel {
+                Name = model.Name,
+                IsPediatric = model.IsPediatric,
+                IsTherapeutic = model.IsTherapeutic
+            };
+        }
+    }
+}

Medical/MedicalDatabaseContracts/SearchModels/SpecializationSearchModel.cs

@@ -1,4 +1,8 @@
 namespace MedicalDatabaseContracts.SearchModels
 {
-    public class SpecializationSearchModel : AbstractSearchModel { }
+    public class SpecializationSearchModel : AbstractSearchModel {
+        public string? Name { get; set; }
+        public bool? IsPediatric { get; set; }
+        public bool? IsTherapeutic { get; set; }
+    }
 }