added enumerable extensions

suxrobGM · Dec 8, 2023 · d26e188 · d26e188
1 parent 2be8102
commit d26e188
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Showing 2 changed files with 33 additions and 6 deletions.
diff --git a/src/Core/Logistics.Domain/Extensions/EnumerableExtensions.cs b/src/Core/Logistics.Domain/Extensions/EnumerableExtensions.cs
@@ -2,11 +2,20 @@
 
 public static class EnumerableExtensions
 {
-    public static IEnumerable<TSource> Sort<TSource>(
+    public static IOrderedEnumerable<TSource> OrderBy<TSource, TKey>(
         this IEnumerable<TSource> query,
-        Func<TSource, object> keySelector, 
-        bool descending)
+        Func<TSource, TKey> keySelector,
+        bool isDescendingOrder)
     {
-        return descending ? query.OrderByDescending(keySelector) : query.OrderBy(keySelector);
+        return isDescendingOrder ? query.OrderByDescending(keySelector) : query.OrderBy(keySelector);
     }
-}
+
+    public static IEnumerable<TSource> ApplyPaging<TSource>(
+        this IEnumerable<TSource> query,
+        int page,
+        int pageSize)
+    {
+        return query.Skip((page - 1) * pageSize)
+            .Take(pageSize);
+    }
+}
diff --git a/src/Core/Logistics.Domain/Extensions/QueryableExtensions.cs b/src/Core/Logistics.Domain/Extensions/QueryableExtensions.cs
@@ -1,4 +1,5 @@
-using Logistics.Domain.Core;
+using System.Linq.Expressions;
+using Logistics.Domain.Core;
 using Logistics.Domain.Specifications;
 
 namespace Logistics.Domain.Persistence;
@@ -31,4 +32,21 @@ public static class QueryableExtensions
 
         return query;
     }
+
+    public static IQueryable<TSource> OrderBy<TSource, TKey>(
+        this IQueryable<TSource> query,
+        Expression<Func<TSource, TKey>> keySelector,
+        bool isDescendingOrder)
+    {
+        return isDescendingOrder ? query.OrderByDescending(keySelector) : query.OrderBy(keySelector);
+    }
+
+    public static IQueryable<TSource> ApplyPaging<TSource>(
+        this IQueryable<TSource> query,
+        int page,
+        int pageSize)
+    {
+        return query.Skip((page - 1) * pageSize)
+            .Take(pageSize);
+    }
 }