supported.

2019-11-11 18:37:14 -06:00
parent 2b6492b7de
commit ae3f02774d
20 changed files with 612 additions and 242 deletions
@@ -0,0 +1,40 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Reflection;
+using System.Text;
+using System.Threading.Tasks;
+using Microsoft.EntityFrameworkCore;
+using PoweredSoft.DynamicLinq.Fluent;
+
+namespace PoweredSoft.DynamicLinq.EntityFrameworkCore
+{
+    public static class DbContextExtensions
+    {
+        private static MethodInfo SetMethod = typeof(DbContext).GetMethod(nameof(DbContext.Set), BindingFlags.Public | BindingFlags.Instance);
+
+        public static IQueryable Query(this DbContext context, Type pocoType, Action<WhereBuilder> callback)
+        {
+            var set = SetMethod.MakeGenericMethod(pocoType).Invoke(context, new object[] { });
+            var queryable = set as IQueryable;
+            var builder = new WhereBuilder(queryable);
+            callback(builder);
+            var result = builder.Build();
+            return result;
+        }
+
+        public static IQueryable<T> Query<T>(this DbContext context, Action<WhereBuilder> callback)
+            where T : class
+        {
+            var query = context.Set<T>().AsQueryable();
+            query = query.Query(callback);
+            return query;
+        }
+
+        public static IQueryable Where(this DbContext context, Type pocoType, Action<WhereBuilder> callback)
+            => context.Query(pocoType, callback);
+
+        public static IQueryable<T> Where<T>(this DbContext context, Action<WhereBuilder> callback)
+           where T : class => context.Query<T>(callback);
+    }
+}
@@ -0,0 +1,15 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>netstandard2.1</TargetFramework>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Microsoft.EntityFrameworkCore" Version="3.0.0" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\PoweredSoft.DynamicLinq\PoweredSoft.DynamicLinq.csproj" />
+  </ItemGroup>
+  
+</Project>