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Added EvaluateGroupByAtDatabase For EF Core 2.1 (#197)
* EvaluateGroupByAtDatabase (#165) * wip * Added ParsingConfig.DefaultEFCore21 * Added EvaluateGroupByAtDatabase to Select and SelectMany
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src-console/ConsoleAppEF2.1/ConsoleApp_netcore2.0_EF2.1.csproj
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| <Project Sdk="Microsoft.NET.Sdk"> | ||
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| <PropertyGroup> | ||
| <OutputType>Exe</OutputType> | ||
| <TargetFramework>netcoreapp2.0</TargetFramework> | ||
| <AssemblyName>ConsoleAppEF21</AssemblyName> | ||
| <RootNamespace>ConsoleAppEF21</RootNamespace> | ||
| </PropertyGroup> | ||
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| <ItemGroup> | ||
| <PackageReference Include="Microsoft.EntityFrameworkCore.InMemory" Version="2.1.1" /> | ||
| <PackageReference Include="Microsoft.EntityFrameworkCore.SqlServer" Version="2.1.1" /> | ||
| <PackageReference Include="Microsoft.Extensions.Logging.Console" Version="2.1.1" /> | ||
| <PackageReference Include="Newtonsoft.Json" Version="10.0.3" /> | ||
| </ItemGroup> | ||
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| <ItemGroup> | ||
| <ProjectReference Include="..\..\src\System.Linq.Dynamic.Core\System.Linq.Dynamic.Core.csproj" /> | ||
| </ItemGroup> | ||
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| </Project> |
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| using System.ComponentModel.DataAnnotations; | ||
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| namespace ConsoleAppEF21.Database | ||
| { | ||
| public class Car | ||
| { | ||
| [Key] | ||
| public int Key { get; set; } | ||
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| [Required] | ||
| [StringLength(8)] | ||
| public string Vin { get; set; } | ||
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| [Required] | ||
| public string Year { get; set; } | ||
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| [Required] | ||
| public string Brand { get; set; } | ||
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| [Required] | ||
| public string Color { get; set; } | ||
| } | ||
| } |
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| using Microsoft.EntityFrameworkCore; | ||
| using Microsoft.Extensions.Logging; | ||
| using Microsoft.Extensions.Logging.Console; | ||
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| namespace ConsoleAppEF21.Database | ||
| { | ||
| public class TestContext : DbContext | ||
| { | ||
| public static readonly LoggerFactory MyLoggerFactory = new LoggerFactory(new[] { new ConsoleLoggerProvider((filter, includeScopes) => true, true) }); | ||
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| public virtual DbSet<Car> Cars { get; set; } | ||
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| protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder) | ||
| { | ||
| optionsBuilder.UseLoggerFactory(MyLoggerFactory); // Warning: Do not create a new ILoggerFactory instance each time | ||
| optionsBuilder.EnableSensitiveDataLogging(); | ||
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| optionsBuilder.UseSqlServer(@"Server=(localdb)\mssqllocaldb;Database=CarsEF20;Trusted_Connection=True;"); | ||
| } | ||
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| protected override void OnModelCreating(ModelBuilder modelBuilder) | ||
| { | ||
| modelBuilder.Entity<Car>().HasKey(c => c.Key); | ||
| } | ||
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| // https://stackoverflow.com/questions/46212704/how-do-i-write-ef-functions-extension-method | ||
| public static bool Like(string matchExpression, string pattern) => EF.Functions.Like(matchExpression, pattern); | ||
| } | ||
| } |
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| using System; | ||
| using System.Collections.Generic; | ||
| using System.Linq; | ||
| using System.Linq.Dynamic.Core; | ||
| using ConsoleAppEF21.Database; | ||
| using Newtonsoft.Json; | ||
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| namespace ConsoleAppEF21 | ||
| { | ||
| class Program | ||
| { | ||
| //class C : AbstractDynamicLinqCustomTypeProvider, IDynamicLinkCustomTypeProvider | ||
| //{ | ||
| // public HashSet<Type> GetCustomTypes() | ||
| // { | ||
| // var assemblies = AppDomain.CurrentDomain.GetAssemblies(); | ||
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| // var set = new HashSet<Type>(FindTypesMarkedWithDynamicLinqTypeAttribute(assemblies)) | ||
| // { | ||
| // typeof(TestContext) | ||
| // }; | ||
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| // return set; | ||
| // } | ||
| //} | ||
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| //private static IQueryable GetQueryable() | ||
| //{ | ||
| // var random = new Random((int)DateTime.Now.Ticks); | ||
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| // var x = Enumerable.Range(0, 10).Select(i => new | ||
| // { | ||
| // Id = i, | ||
| // Value = random.Next(), | ||
| // }); | ||
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| // return x.AsQueryable().Select("new (it as Id, @0 as Value)", random.Next()); | ||
| // // return x.AsQueryable(); //x.AsQueryable().Select("new (Id, Value)"); | ||
| //} | ||
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| static void Main(string[] args) | ||
| { | ||
| var list = new List<Car> { new Car { Key = 1 }, new Car { Key = 2 } }; | ||
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| var carsTest = list.AsQueryable().Where("Key = @0", "1").ToList(); | ||
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| //IQueryable qry = GetQueryable(); | ||
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| //var result = qry.Select("it").OrderBy("Value"); | ||
| //try | ||
| //{ | ||
| // Console.WriteLine("result {0}", JsonConvert.SerializeObject(result, Formatting.Indented)); | ||
| //} | ||
| //catch (Exception) | ||
| //{ | ||
| // // Console.WriteLine(e); | ||
| //} | ||
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| //var all = new | ||
| //{ | ||
| // test1 = new List<int> { 1, 2, 3 }.ToDynamicList(typeof(int)), | ||
| // test2 = new List<dynamic> { 4, 5, 6 }.ToDynamicList(typeof(int)), | ||
| // test3 = new List<object> { 7, 8, 9 }.ToDynamicList(typeof(int)) | ||
| //}; | ||
| // Console.WriteLine("all {0}", JsonConvert.SerializeObject(all, Formatting.None)); | ||
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| var config = ParsingConfig.DefaultEFCore21; | ||
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| var context = new TestContext(); | ||
| if (!context.Cars.Any()) | ||
| { | ||
| context.Cars.Add(new Car { Brand = "Ford", Color = "Blue", Vin = "yes", Year = "2017" }); | ||
| context.Cars.Add(new Car { Brand = "Fiat", Color = "Red", Vin = "yes", Year = "2016" }); | ||
| context.Cars.Add(new Car { Brand = "Alfa", Color = "Black", Vin = "no", Year = "1979" }); | ||
| context.Cars.Add(new Car { Brand = "Alfa", Color = "Black", Vin = "a%bc", Year = "1979" }); | ||
| context.SaveChanges(); | ||
| } | ||
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| //var g1 = context.Cars.GroupBy("new(Brand)").Select("new(Key.Brand as KeyValue1, it.Count() as CountValue1)").ToDynamicList(); | ||
| //Console.WriteLine("GroupBy @ local {0}", JsonConvert.SerializeObject(g1, Formatting.Indented)); | ||
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| //Console.WriteLine(new string('_', 80)); | ||
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| var g2 = context.Cars.GroupBy("new(Brand)", config).Select("new(Key.Brand as KeyValue2, it.Count() as CountValue2)").ToDynamicList(); | ||
| Console.WriteLine("GroupBy @ database {0}", JsonConvert.SerializeObject(g2, Formatting.Indented)); | ||
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| //var carFirstOrDefault = context.Cars.Where(config, "Brand == \"Ford\""); | ||
| //Console.WriteLine("carFirstOrDefault {0}", JsonConvert.SerializeObject(carFirstOrDefault, Formatting.Indented)); | ||
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| //var carsLike1 = | ||
| // from c in context.Cars | ||
| // where EF.Functions.Like(c.Brand, "%a%") | ||
| // select c; | ||
| //Console.WriteLine("carsLike1 {0}", JsonConvert.SerializeObject(carsLike1, Formatting.Indented)); | ||
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| //var cars2Like = context.Cars.Where(c => EF.Functions.Like(c.Brand, "%a%")); | ||
| //Console.WriteLine("cars2Like {0}", JsonConvert.SerializeObject(cars2Like, Formatting.Indented)); | ||
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| //var dynamicCarsLike1 = context.Cars.Where(config, "TestContext.Like(Brand, \"%a%\")"); | ||
| //Console.WriteLine("dynamicCarsLike1 {0}", JsonConvert.SerializeObject(dynamicCarsLike1, Formatting.Indented)); | ||
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| //var dynamicCarsLike2 = context.Cars.Where(config, "TestContext.Like(Brand, \"%d%\")"); | ||
| //Console.WriteLine("dynamicCarsLike2 {0}", JsonConvert.SerializeObject(dynamicCarsLike2, Formatting.Indented)); | ||
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| //var dynamicFunctionsLike1 = context.Cars.Where(config, "DynamicFunctions.Like(Brand, \"%a%\")"); | ||
| //Console.WriteLine("dynamicFunctionsLike1 {0}", JsonConvert.SerializeObject(dynamicFunctionsLike1, Formatting.Indented)); | ||
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| //var dynamicFunctionsLike2 = context.Cars.Where(config, "DynamicFunctions.Like(Vin, \"%a.%b%\", \".\")"); | ||
| //Console.WriteLine("dynamicFunctionsLike2 {0}", JsonConvert.SerializeObject(dynamicFunctionsLike2, Formatting.Indented)); | ||
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| //var testDynamic = context.Cars.Select(c => new | ||
| //{ | ||
| // K = c.Key, | ||
| // C = c.Color | ||
| //}); | ||
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| //var testDynamicResult = testDynamic.Select("it").OrderBy("C"); | ||
| //try | ||
| //{ | ||
| // Console.WriteLine("resultX {0}", JsonConvert.SerializeObject(testDynamicResult, Formatting.Indented)); | ||
| //} | ||
| //catch (Exception e) | ||
| //{ | ||
| // Console.WriteLine(e); | ||
| //} | ||
| } | ||
| } | ||
| } |
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