Remove permission Grants when role is delete

modules/identity/src/Volo.Abp.PermissionManagement.Domain.Identity/Volo/Abp/PermissionManagement/Identity/RoleDeletedEventHandler.cs

@@ -0,0 +1,26 @@
+using System.Threading.Tasks;
+using Volo.Abp.Authorization.Permissions;
+using Volo.Abp.DependencyInjection;
+using Volo.Abp.Domain.Entities.Events;
+using Volo.Abp.EventBus;
+using Volo.Abp.Identity;
+
+namespace Volo.Abp.PermissionManagement.Identity
+{
+    public class RoleDeletedEventHandler :
+        ILocalEventHandler<EntityDeletedEventData<IdentityRole>>,
+        ITransientDependency
+    {
+        protected IPermissionManager PermissionManager { get; }
+
+        public RoleDeletedEventHandler(IPermissionManager permissionManager)
+        {
+            PermissionManager = permissionManager;
+        }
+
+        public virtual async Task HandleEventAsync(EntityDeletedEventData<IdentityRole> eventData)
+        {
+            await PermissionManager.DeleteAsync(RolePermissionValueProvider.ProviderName, eventData.Entity.Name);
+        }
+    }
+}

modules/permission-management/src/Volo.Abp.PermissionManagement.Domain/Volo/Abp/PermissionManagement/IPermissionManager.cs

@@ -15,5 +15,7 @@ namespace Volo.Abp.PermissionManagement
         Task SetAsync(string permissionName, string providerName, string providerKey, bool isGranted);
 
         Task<PermissionGrant> UpdateProviderKeyAsync(PermissionGrant permissionGrant, string providerKey);
+
+        Task DeleteAsync(string providerName, string providerKey);
     }
-}
+}

modules/permission-management/src/Volo.Abp.PermissionManagement.Domain/Volo/Abp/PermissionManagement/PermissionManager.cs

@@ -111,6 +111,16 @@ namespace Volo.Abp.PermissionManagement
             return await PermissionGrantRepository.UpdateAsync(permissionGrant);
         }
 
+        public virtual async Task DeleteAsync(string providerName, string providerKey)
+        {
+            var permissionGrants = await PermissionGrantRepository.GetListAsync(providerName, providerKey);
+            //TODO: Use DeleteManyAsync method
+            foreach (var permissionGrant in permissionGrants)
+            {
+                await PermissionGrantRepository.DeleteAsync(permissionGrant);
+            }
+        }
+
         protected virtual async Task<PermissionWithGrantedProviders> GetInternalAsync(PermissionDefinition permission, string providerName, string providerKey)
         {
             var result = new PermissionWithGrantedProviders(permission.Name, false);
@@ -143,4 +153,4 @@ namespace Volo.Abp.PermissionManagement
             return result;
         }
     }
-}
+}