Added new methods in WriteGenericRepository (#96)

Author: adimiko

source/EasyWay.EntityFrameworkCore/IWriteGenericRepository.cs

@@ -1,4 +1,6 @@
-namespace EasyWay
+using System.Linq.Expressions;
+
+namespace EasyWay
 {
     public interface IWriteGenericRepository<TAggregateRoot>
         where TAggregateRoot : AggregateRoot
@@ -12,5 +14,13 @@ public interface IWriteGenericRepository<TAggregateRoot>
         Task Remove(TAggregateRoot aggregateRoot);
 
         Task Remove(IEnumerable<TAggregateRoot> aggregateRoots);
+
+        Task Any();
+
+        Task Any(Expression<Func<TAggregateRoot, bool>> predicate);
+
+        Task<int> Count();
+
+        Task<int> Count(Expression<Func<TAggregateRoot, bool>> predicate);
     }
 }

source/EasyWay.EntityFrameworkCore/Internals/Repositories/WriteGenericRepository.cs

@@ -1,4 +1,5 @@
 using Microsoft.EntityFrameworkCore;
+using System.Linq.Expressions;
 
 namespace EasyWay.Internals.Repositories
 {
@@ -22,6 +23,26 @@ public Task Add(IEnumerable<TAggregateRoot> aggregateRoots)
             return _aggregateRoots.AddRangeAsync(aggregateRoots);
         }
 
+        public Task Any()
+        {
+            return _aggregateRoots.AnyAsync();
+        }
+
+        public Task Any(Expression<Func<TAggregateRoot, bool>> predicate)
+        {
+            return _aggregateRoots.AnyAsync(predicate);
+        }
+
+        public Task<int> Count()
+        {
+            return _aggregateRoots.CountAsync();
+        }
+
+        public Task<int> Count(Expression<Func<TAggregateRoot, bool>> predicate)
+        {
+            return _aggregateRoots.CountAsync(predicate);
+        }
+
         public Task<TAggregateRoot?> Get(Guid id)
         {
             return _aggregateRoots.FindAsync(id).AsTask();