https://github.com/danieleteti/delphimvcframework/issues/485

README.md

@@ -553,6 +553,7 @@ This version introduced new features in many different areas (swagger, server si
 - Fix https://github.com/danieleteti/delphimvcframework/issues/461
 - Fix https://github.com/danieleteti/delphimvcframework/issues/489 (thanks to [drcrck](https://github.com/drcrck) for his initial analisys)
 - Fix https://github.com/danieleteti/delphimvcframework/issues/493 (thanks to [DelphiMan68](https://github.com/DelphiMan68) for his initial analisys)
+- Fix https://github.com/danieleteti/delphimvcframework/issues/451
 - Fix for nil objects in lists during serialization
 - Uniformed behavior in `Update` and `Delete` method in `TMVCActiveRecord`. Now these methods raise an exception if the record doesn't exists anymore in the table (update or delete statements return `AffectedRows` = 0). The behavior can be altered using the new parameter in the call, which by default is `true`. WARNING! This change could raise some incompatibilities with the previous version, however this is the correct behavior. Consider the previous one a "incorrect behavior to fix".
 - Fix https://github.com/danieleteti/delphimvcframework/issues/489

unittests/general/Several/ActiveRecordTestsU.pas

@@ -50,6 +50,8 @@ type
     [Test]
     procedure TestCRUD;
     [Test]
+    procedure Test_ISSUE485;
+    [Test]
     procedure TestDeleteIfNotFound;
     [Test]
     procedure TestUpdateIfNotFound;
@@ -816,6 +818,53 @@ begin
   end;
 end;
 
+procedure TTestActiveRecordBase.Test_ISSUE485;
+var
+  lCustomer: TCustomer;
+  lID: Integer;
+begin
+  Assert.AreEqual(Int64(0), TMVCActiveRecord.Count<TCustomer>());
+  lCustomer := TCustomer.Create;
+  try
+    lCustomer.CompanyName := 'bit Time Professionals';
+    lCustomer.City := 'Rome, IT';
+    lCustomer.Note := 'note1';
+    lCustomer.CreationTime := Time;
+    lCustomer.CreationDate := Date;
+    lCustomer.ID := -1; { don't be fooled by the default! }
+    lCustomer.Insert;
+    lID := lCustomer.ID;
+    Assert.AreEqual(1, lID);
+  finally
+    lCustomer.Free;
+  end;
+
+  lCustomer := TMVCActiveRecord.GetByPK<TCustomer>(lID);
+  try
+    Assert.IsTrue(lCustomer.CompanyName.HasValue);
+    lCustomer.CompanyName.Clear;
+    lCustomer.Update;
+  finally
+    lCustomer.Free;
+  end;
+
+  lCustomer := TMVCActiveRecord.GetByPK<TCustomer>(lID);
+  try
+    Assert.IsFalse(lCustomer.CompanyName.HasValue);
+    lCustomer.CompanyName := 'bit Time Professionals';
+    lCustomer.Update;
+  finally
+    lCustomer.Free;
+  end;
+
+  lCustomer := TMVCActiveRecord.GetByPK<TCustomer>(lID);
+  try
+    Assert.IsTrue(lCustomer.CompanyName.HasValue);
+  finally
+    lCustomer.Free;
+  end;
+end;
+
 procedure TTestActiveRecordBase.InternalSetupFixture;
 begin
   // do nothing