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Prefab/Data/Queries/GenericAttributeViewQueries.cs

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+using Microsoft.EntityFrameworkCore;
+using Prefab.Domain.Common;
+
+namespace Prefab.Data.Queries;
+
+/// <summary>
+/// Provides shared filters for working with generic attribute views.
+/// </summary>
+public static class GenericAttributeViewQueries
+{
+    /// <summary>
+    /// Filters a module-specific view by entity identifier and key group.
+    /// </summary>
+    public static IQueryable<TView> ForEntity<TView>(this IQueryable<TView> query, IEntity<Guid> entity, string keyGroup)
+        where TView : class
+    {
+        if (entity == null)
+        {
+            throw new ArgumentNullException(nameof(entity));
+        }
+
+        if (string.IsNullOrEmpty(keyGroup))
+        {
+            throw new ArgumentException("KeyGroup cannot be null or empty.", nameof(keyGroup));
+        }
+
+        return query.Where(x => EF.Property<Guid>(x, "EntityId") == entity.Id &&
+                                 EF.Property<string>(x, "KeyGroup") == keyGroup);
+    }
+}