Add listBeforeFiltering option to FilterAsync method

The method `FilterAsync` in `BaseRepository.cs` now includes a
`listBeforeFiltering` boolean parameter. This parameter allows
listing all entities before applying filtering, which can be
useful in certain scenarios but may impact performance with
large datasets. The method signature and implementation have
been updated to handle this new parameter.

Author: bvdcode

Sources/EasyExtensions.EntityFrameworkCore/Repository/BaseRepository.cs

@@ -142,16 +142,22 @@ public async Task<Paging<TItem>> FilterAsync(IGridifyQuery query, CancellationTo
         /// </summary>
         /// <param name="query">The query parameters for filtering and pagination.</param>
         /// <param name="mapper">The mapper used to map the entities.</param>
+        /// <param name="listBeforeFiltering">Indicates whether to list the entities before filtering. Be careful with this option, as it may lead to performance issues if the dataset is large.</param>
         /// <param name="cancellationToken">The cancellation token.</param>
         /// <returns>A task that represents the asynchronous operation. The task result contains the filtered and paginated entities.</returns>
-        public async Task<Paging<TItem>> FilterAsync(IGridifyQuery query, IGridifyMapper<TItem> mapper, CancellationToken cancellationToken = default)
+        public async Task<Paging<TItem>> FilterAsync(IGridifyQuery query, IGridifyMapper<TItem> mapper, bool listBeforeFiltering = false, CancellationToken cancellationToken = default)
         {
             query ??= new GridifyQuery(1, 20, string.Empty, "id desc");
             if (string.IsNullOrWhiteSpace(query.OrderBy))
             {
                 query.OrderBy = "id desc";
             }
-            return await db.GridifyAsync(query, mapper);
+            if (!listBeforeFiltering)
+            {
+                return await db.GridifyAsync(query, mapper);
+            }
+            var allItems = await ListAllAsync(cancellationToken);
+            return allItems.AsQueryable().Gridify(query, mapper);
         }
 
         /// <summary>

Sources/EasyExtensions.EntityFrameworkCore/Repository/IRepository.cs

@@ -73,9 +73,10 @@ public interface IRepository<TItem> : IRepository where TItem : BaseEntity
         /// </summary>
         /// <param name="query">The query parameters for filtering and pagination.</param>
         /// <param name="mapper">The mapper used to map the entities.</param>
+        /// <param name="listBeforeFiltering">Indicates whether to list the entities before filtering. Be careful with this option, as it may lead to performance issues if the dataset is large.</param>
         /// <param name="cancellationToken">The cancellation token.</param>
         /// <returns>A task that represents the asynchronous operation. The task result contains the filtered and paginated entities.</returns>
-        Task<Paging<TItem>> FilterAsync(IGridifyQuery query, IGridifyMapper<TItem> mapper, CancellationToken cancellationToken = default);
+        Task<Paging<TItem>> FilterAsync(IGridifyQuery query, IGridifyMapper<TItem> mapper, bool listBeforeFiltering = false, CancellationToken cancellationToken = default);
 
         /// <summary>
         /// Finds entities asynchronously based on the specified predicate.