完善各层

Yi.Framework/Yi.Framework.Model/DataContext.cs

@@ -0,0 +1,39 @@
+using Microsoft.EntityFrameworkCore;
+using Microsoft.Extensions.Options;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using Yi.Framework.Common.IOCOptions;
+using Yi.Framework.Model.Models;
+
+namespace Yi.Framework.Model
+{
+	//Add-Migration yi-1
+	//Update-Database yi-1
+   public class DataContext : DbContext
+    {
+		private readonly IOptionsMonitor<SqliteOptions> _optionsMonitor;
+		private readonly string _connStr;
+
+		public DataContext(IOptionsMonitor<SqliteOptions> optionsMonitor)
+		{
+			_optionsMonitor = optionsMonitor;
+			_connStr = _optionsMonitor.CurrentValue.Url;
+		}
+
+		public DataContext(string connstr)
+		{
+			_connStr = connstr;
+		}
+		protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder)
+		{
+			if (!optionsBuilder.IsConfigured)
+			{
+				optionsBuilder.UseSqlite(_connStr);
+			}
+		}
+        public virtual DbSet<user> user { get; set; }
+    }
+}