Add `GetRolesAsync` by `organizationUnitIds` method to `IOrganizationUnitRepository`.

modules/identity/src/Volo.Abp.Identity.Domain/Volo/Abp/Identity/IOrganizationUnitRepository.cs

@@ -50,6 +50,15 @@ public interface IOrganizationUnitRepository : IBasicRepository<OrganizationUnit
         CancellationToken cancellationToken = default
     );
 
+    Task<List<IdentityRole>> GetRolesAsync(
+        Guid[] organizationUnitIds,
+        string sorting = null,
+        int maxResultCount = int.MaxValue,
+        int skipCount = 0,
+        bool includeDetails = false,
+        CancellationToken cancellationToken = default
+    );
+
     Task<int> GetRolesCountAsync(
         OrganizationUnit organizationUnit,
         CancellationToken cancellationToken = default

modules/identity/src/Volo.Abp.Identity.EntityFrameworkCore/Volo/Abp/Identity/EntityFrameworkCore/EfCoreOrganizationUnitRepository.cs

@@ -105,6 +105,28 @@ public class EfCoreOrganizationUnitRepository
         return await query.ToListAsync(GetCancellationToken(cancellationToken));
     }
 
+    public virtual async Task<List<IdentityRole>> GetRolesAsync(
+        Guid[] organizationUnitIds,
+        string sorting = null,
+        int maxResultCount = int.MaxValue,
+        int skipCount = 0,
+        bool includeDetails = false,
+        CancellationToken cancellationToken = default)
+    {
+        var dbContext = await GetDbContextAsync();
+
+        var query = from organizationRole in dbContext.Set<OrganizationUnitRole>()
+            join role in dbContext.Roles.IncludeDetails(includeDetails) on organizationRole.RoleId equals role.Id
+            where organizationUnitIds.Contains(organizationRole.OrganizationUnitId)
+            select role;
+
+        query = query
+            .OrderBy(sorting.IsNullOrEmpty() ? nameof(IdentityRole.Name) : sorting)
+            .PageBy(skipCount, maxResultCount);
+
+        return await query.ToListAsync(GetCancellationToken(cancellationToken));
+    }
+
     public virtual async Task<int> GetRolesCountAsync(
         OrganizationUnit organizationUnit,
         CancellationToken cancellationToken = default)

modules/identity/src/Volo.Abp.Identity.MongoDB/Volo/Abp/Identity/MongoDB/MongoOrganizationUnitRepository.cs

@@ -98,6 +98,28 @@ public class MongoOrganizationUnitRepository
             .ToListAsync(GetCancellationToken(cancellationToken));
     }
 
+    public virtual async Task<List<IdentityRole>> GetRolesAsync(
+        Guid[] organizationUnitIds,
+        string sorting = null,
+        int maxResultCount = int.MaxValue,
+        int skipCount = 0,
+        bool includeDetails = false,
+        CancellationToken cancellationToken = default)
+    {
+        var organizationUnits = await (await GetMongoQueryableAsync(cancellationToken))
+            .Where(ou => organizationUnitIds.Contains(ou.Id))
+            .ToListAsync(GetCancellationToken(cancellationToken));
+
+        var roleIds = organizationUnits.SelectMany(ou => ou.Roles.Select(r => r.RoleId)).ToArray();
+
+        return await (await GetMongoQueryableAsync<IdentityRole>(cancellationToken))
+            .Where(r => roleIds.Contains(r.Id))
+            .OrderBy(sorting.IsNullOrEmpty() ? nameof(IdentityRole.Name) : sorting)
+            .As<IMongoQueryable<IdentityRole>>()
+            .PageBy<IdentityRole, IMongoQueryable<IdentityRole>>(skipCount, maxResultCount)
+            .ToListAsync(GetCancellationToken(cancellationToken));
+    }
+
     public virtual async Task<int> GetRolesCountAsync(
         OrganizationUnit organizationUnit,
         CancellationToken cancellationToken = default)

modules/identity/test/Volo.Abp.Identity.TestBase/Volo/Abp/Identity/OrganizationUnitRepository_Tests.cs

@@ -185,6 +185,11 @@ public abstract class OrganizationUnitRepository_Tests<TStartupModule> : AbpIden
             maxResultCount: 1, includeDetails: true);
         ou111Roles.Count.ShouldBe(1);
         ou111Roles.ShouldContain(n => n.Name == "moderator");
+
+        ou111Roles = await _organizationUnitRepository.GetRolesAsync(new []{ ou.Id }, sorting: "name desc",
+            maxResultCount: 1, includeDetails: true);
+        ou111Roles.Count.ShouldBe(1);
+        ou111Roles.ShouldContain(n => n.Name == "moderator");
     }
 
     [Fact]