- 合并 FreeSql.DbContext 项目至 FreeSql 维护；

FreeSql.DbContext/Extenssions/DependencyInjection.cs

@@ -0,0 +1,32 @@
+#if ns20
+
+using Microsoft.Extensions.DependencyInjection;
+using System;
+
+namespace FreeSql {
+	public static class DbContextDependencyInjection {
+
+		public static IServiceCollection AddFreeDbContext<TDbContext>(this IServiceCollection services, Action<DbContextOptionsBuilder> options) where TDbContext : DbContext {
+
+			services.AddScoped<TDbContext>(sp => {
+				var ctx = Activator.CreateInstance<TDbContext>();
+
+				if (ctx._orm == null) {
+					var builder = new DbContextOptionsBuilder();
+					options(builder);
+					ctx._orm = builder._fsql;
+
+					if (ctx._orm == null)
+						throw new Exception("请在 OnConfiguring 或 AddFreeDbContext 中配置 UseFreeSql");
+
+					ctx.InitPropSets();
+				}
+
+				return ctx;
+			});
+
+			return services;
+		}
+	}
+}
+#endif