chore

Atomx.Data/DataContext.cs

@@ -23,7 +23,11 @@ namespace Atomx.Data
 
         protected override void OnModelCreating(ModelBuilder builder)
         {
-
+            base.OnModelCreating(builder);
+            builder.Entity<Currency>(entity =>
+            {
+                entity.Property(e => e.Id).ValueGeneratedOnAdd();
+            });
         }
 
         /// <summary>
@@ -170,7 +174,7 @@ namespace Atomx.Data
         /// <summary>
         /// 标签
         /// </summary>
-        public DbSet<Tag> Tags { get; set; }    
+        public DbSet<Tag> Tags { get; set; }
 
         /// <summary>
         /// 上传文件