fix: improve error handling and streamline activation process in ActiveAll method

CompanyManagment.EFCore/Repository/EmployerRepository.cs

@@ -722,34 +722,33 @@ public class EmployerRepository : RepositoryBase<long, Employer>, IEmployerRepos
     public OperationResult ActiveAll(long id)
     {
         OperationResult result = new OperationResult();
-        using (var transaction = _context.Database.BeginTransaction())
+        try
         {
-            try
+            var employer = _context.Employers.FirstOrDefault(x => x.id == id);
+            if (employer == null)
             {
-                var employer = _context.Employers.FirstOrDefault(x => x.id == id);
-                employer.Active();
-
-                var workshopIds = _context.WorkshopEmployers.Where(x => x.EmployerId == id).Select(x => x.WorkshopId)
-                    .ToList();
-                var workshops = _context.Workshops.Where(x => workshopIds.Contains(x.id)).ToList();
-                workshops.ForEach(x => x.Active(x.ArchiveCode));
-
-                var contracts = _context.Contracts.Where(x => workshopIds.Contains(x.WorkshopIds)).ToList();
-                contracts.ForEach(x => x.Active());
-
-                var contractIds = contracts.Select(x => x.id).ToList();
-                var checkouts = _context.CheckoutSet.Where(x => contractIds.Contains(x.ContractId)).ToList();
-                checkouts.ForEach(x => x.Active());
-
-                _context.SaveChanges();
-                transaction.Commit();
-                result.Succcedded();
-            }
-            catch (Exception)
-            {
-                result.Failed("فعال کردن کارفرما با خطا مواجه شد");
-                transaction.Rollback();
+                return result.Failed("کارفرما یافت نشد");
             }
+            employer.Active();
+
+            var workshopIds = _context.WorkshopEmployers.Where(x => x.EmployerId == id).Select(x => x.WorkshopId)
+                .ToList();
+            var workshops = _context.Workshops.Where(x => workshopIds.Contains(x.id)).ToList();
+            workshops.ForEach(x => x.Active(x.ArchiveCode));
+
+            var contracts = _context.Contracts.Where(x => workshopIds.Contains(x.WorkshopIds)).ToList();
+            contracts.ForEach(x => x.Active());
+
+            var contractIds = contracts.Select(x => x.id).ToList();
+            var checkouts = _context.CheckoutSet.Where(x => contractIds.Contains(x.ContractId)).ToList();
+            checkouts.ForEach(x => x.Active());
+
+            _context.SaveChanges();
+            result.Succcedded();
+        }
+        catch (Exception)
+        {
+            result.Failed("فعال کردن کارفرما با خطا مواجه شد");
         }
 
         return result;