Added unique constraint on ACTIVATION_KEY.

1 files changed, 8 insertions, 2 deletions

diff --git a/Software/Visual_Studio/MachineStudio/Modules/Tango.MachineStudio.MachineDesigner/ViewModels/MainViewVM.cs b/Software/Visual_Studio/MachineStudio/Modules/Tango.MachineStudio.MachineDesigner/ViewModels/MainViewVM.cs
index 7f558c0c9..a0c01324e 100644
--- a/Software/Visual_Studio/MachineStudio/Modules/Tango.MachineStudio.MachineDesigner/ViewModels/MainViewVM.cs
+++ b/Software/Visual_Studio/MachineStudio/Modules/Tango.MachineStudio.MachineDesigner/ViewModels/MainViewVM.cs
@@ -643,9 +643,15 @@ namespace Tango.MachineStudio.MachineDesigner.ViewModels
 
                     ActiveMachine.Configuration.HardwareVersionChanged += Configuration_HardwareVersionChanged;
 
-                    if (ActiveMachine.ActivationKey == null)
+                    while (ActiveMachine.ActivationKey == null) //Generate a random password and make sure no machine matches it.
                     {
-                        ActiveMachine.ActivationKey = PasswordGenerator.Generate(8, PasswordGenerator.PasswordType.Alpha,PasswordGenerator.PasswordCasing.Upper);
+                        ActiveMachine.ActivationKey = PasswordGenerator.Generate(8, PasswordGenerator.PasswordType.Alpha, PasswordGenerator.PasswordCasing.Upper);
+                        if (await ActiveMachineAdapter.Context.Machines.Where(x => x.ActivationKey == ActiveMachine.ActivationKey).CountAsync() == 0)
+                        {
+                            break;
+                        }
+
+                        ActiveMachine.ActivationKey = null;
                     }
 
                     View.NavigateTo(MachineDesignerNavigationView.MachineDetailsView);