Develop Reference

DatabaseFacade does not contain a definition for 'ExecuteSqlCommand'

I wish to run a raw SQL Delete Query on EF Core and I am suing the following guide to help me along:
https://learn.microsoft.com/en-us/ef/ef6/querying/raw-sql
The code:
using (accountingContext db = new())
{
db.Database.ExecuteSqlCommand("DELETE FROM ...");
}
but I get the error:
DatabaseFacade does not contain a definition for 'ExecuteSqlCommand'
my accountingContext class:
using System;
using System.Collections.Generic;
using Microsoft.EntityFrameworkCore;
using Microsoft.EntityFrameworkCore.Metadata;
namespace WebApi.Models
{
public partial class accountingContext : DbContext
{
public DbSet<User>? Users { get; set; }
public DbSet<Transaction>? Transactions { get; set; }
public DbSet<TransactionStaging>? TransactionsStaging { get; set; }
public accountingContext()
{
}
public accountingContext(DbContextOptions<accountingContext> options) : base(options)
{
}
protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder)
{
if (!optionsBuilder.IsConfigured)
{
optionsBuilder.UseSqlServer("****");
}
}
protected override void OnModelCreating(ModelBuilder modelBuilder)
{
}
}
}
the .csproj file:
<Project Sdk="Microsoft.NET.Sdk.Web">
<PropertyGroup>
<TargetFramework>net6.0</TargetFramework>
<ImplicitUsings>enable</ImplicitUsings>
</PropertyGroup>
<ItemGroup>
<PackageReference Include="CsvHelper" Version="28.0.1" />
<PackageReference Include="Microsoft.AspNetCore.Authentication.JwtBearer" Version="6.0.0" />
<PackageReference Include="Microsoft.EntityFrameworkCore.Design" Version="6.0.9">
<PrivateAssets>all</PrivateAssets>
<IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
</PackageReference>
<PackageReference Include="Microsoft.EntityFrameworkCore.SqlServer" Version="6.0.6" />
<PackageReference Include="Microsoft.EntityFrameworkCore.Tools" Version="6.0.6">
<PrivateAssets>all</PrivateAssets>
<IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
</PackageReference>
<PackageReference Include="Microsoft.Extensions.Configuration" Version="6.0.1" />
<PackageReference Include="System.IdentityModel.Tokens.Jwt" Version="6.15.0" />
</ItemGroup>
<ItemGroup>
<Folder Include="Resources\Temp\" />
</ItemGroup>
</Project>
What am I doing wrong here?

The following resolved the issue for me:
db.Database.ExecuteSqlRaw("...");
Not sure why all the docs I was going through were suggesting the use of ExecuteSqlCommand but eventually I stumbled on the correct command.

You need to add the following packages to be able to use the EF 6.0:
Don't use any other EntityFramework packages. Also, your solution should be for .Net 6.0.

Azure durable function orchestration client cannot be found when the DurableTask nuget package is upgraded to version 2.0.0

Have a queue-triggered function defined as the following example:
public async Task OrchestratorAsync(
[QueueTrigger("my-queue", Connection = "")]string payload,
[OrchestrationClient] DurableOrchestrationClient orchestrationClient)
{
//Do something
}
The csproj file looks like the following details and it compiles successfully:
<PropertyGroup>
<TargetFramework>netcoreapp2.2</TargetFramework>
<AzureFunctionsVersion>v2</AzureFunctionsVersion>
<CopyLocalLockFileAssemblies>true</CopyLocalLockFileAssemblies>
</PropertyGroup>
<ItemGroup>
<PackageReference Include="Microsoft.Azure.WebJobs.Extensions.DurableTask" Version="1.8.2" />
<PackageReference Include="Microsoft.Azure.WebJobs.Extensions.Storage" Version="3.0.10" />
<PackageReference Include="Microsoft.Azure.Functions.Extensions" Version="1.0.0" />
<PackageReference Include="Microsoft.NET.Sdk.Functions" Version="1.0.29" />
</ItemGroup>
</project>
When I upgrade Microsoft.Azure.WebJobs.Extensions.DurableTask to version 2.0.0 the compiler throws error on not being able to find OrchestrationClient and DurableOrchestrationClient. So we're stuck with version 1.8.2! What's the solution for this issue?
Note: This issue is quite reproducible by VS 2019. Have it scaffold a Function project, the create another function as a durable orchestrator, tweak the csproj file and bump up the DurableTask nuget package version to 2.0.0 from the default 1.8.2.

I have reproduce your error, and I solved this problem.
using System.Collections.Generic;
using System.Net.Http;
using System.Threading.Tasks;
using Microsoft.Azure.WebJobs;
using Microsoft.Azure.WebJobs.Extensions.DurableTask;
using Microsoft.Azure.WebJobs.Extensions.Http;
using Microsoft.Azure.WebJobs.Host;
using Microsoft.Extensions.Logging;
namespace _11111fc
{
public static class Function1
{
[FunctionName("Function1")]
public static async Task<List<string>> RunOrchestrator(
[OrchestrationTrigger] IDurableOrchestrationContext context,
[DurableClient] IDurableOrchestrationClient orchestrationClient)
{
var outputs = new List<string>();
// Replace "hello" with the name of your Durable Activity Function.
outputs.Add(await context.CallActivityAsync<string>("Function1_Hello", "Tokyo"));
outputs.Add(await context.CallActivityAsync<string>("Function1_Hello", "Seattle"));
outputs.Add(await context.CallActivityAsync<string>("Function1_Hello", "London"));
// returns ["Hello Tokyo!", "Hello Seattle!", "Hello London!"]
return outputs;
}
[FunctionName("Function1_Hello")]
public static string SayHello([ActivityTrigger] string name, ILogger log)
{
log.LogInformation($"Saying hello to {name}.");
return $"Hello {name}!";
}
[FunctionName("Function1_HttpStart")]
public static async Task<HttpResponseMessage> HttpStart(
[HttpTrigger(AuthorizationLevel.Anonymous, "get", "post")]HttpRequestMessage req,
[DurableClient]IDurableOrchestrationClient starter,
ILogger log)
{
// Function input comes from the request content.
string instanceId = await starter.StartNewAsync("Function1", null);
log.LogInformation($"Started orchestration with ID = '{instanceId}'.");
return starter.CreateCheckStatusResponse(req, instanceId);
}
}
}
Solution:
Change [OrchestrationClient] to [DurableClient]. Have a look of this.
Please take care of the breaking changes in Durable Functions v2.0.0-beta2 Release, the OrchestrationClient has been renamed.
Things works fine on my side. Please have a try on your side.

Where is HasDefaultValue() extension method on Entity Framework Core 3.0

This line is warning error whem moving to EF 3.0, I can't find the HasDefaultValue() extension method
using MGame.Core;
using MGame.Model;
using MGame.Model.Enums;
using Microsoft.EntityFrameworkCore;
using Microsoft.EntityFrameworkCore.Metadata.Builders;
using System;
namespace MGame.Data.DataContextConfigurations
{
public class AddressConfiguration : DataContextBaseEntityTypeConfiguration, IEntityTypeConfiguration<Address>
{
public void Configure(EntityTypeBuilder<Address> builder)
{
builder.Property(e => e.AddressTypeId).IsRequired().HasDefaultValue(0);
also fails with
builder.ToTable(nameof(AncestorRegionView));
and also with
builder.Metadata.IsQueryType = true;

I just needed to add a reference to the package Microsoft.EntityFrameworkCore.Relational:
<PackageReference Include="Microsoft.EntityFrameworkCore.Relational" Version="3.0.0" />

.netcore unit testing not running properly

I have created some unit tests for a simple c#/dotnet-core console application.
I have created the reference on the testing project but for some reason the "dotnet test" cmd is still reporting the following error:
UnitTest1.cs(12,25): error CS0103: The name 'LinkChecker' does not
exist in the current context
[/Users/med.bensalem/Desktop/dotnet-projects/checklinksTests/checklinksTests.csproj]
UnitTest1.cs(19,25): error CS0103: The name 'LinkChecker' does not
exist in the current context
[/Users/med.bensalem/Desktop/dotnet-projects/checklinksTests/checklinksTests.csproj]
Project structure:
.
├── checklinksTests
│ ├── UnitTest1.cs
│ ├── checklinksTests.csproj
└── checklinksconsole
└── code
├── LinkChecker.cs
├── Program.cs
└── checklinksconsole.csproj
Please find below the code I project source code:
Main application - checklinksconsole:
checklinksconsole.csproj - file:
<PropertyGroup>
<OutputType>Exe</OutputType>
<TargetFramework>netcoreapp2.2</TargetFramework>
</PropertyGroup>
<ItemGroup>
<PackageReference Include="HtmlAgilityPack.NetCore" Version="1.5.0.1" />
</ItemGroup>
</Project>
Program.cs - file:
using System;
using System.Linq;
using System.Net.Http;
namespace checklinksconsole
{
class Program
{
static void Main(string[] args)
{
var site = "https://www.google.com";
var client = new HttpClient();
var body = client.GetStringAsync(site);
Console.WriteLine(body.Result);
Console.WriteLine();
Console.WriteLine("Links:");
var links = LinkChecker.GetLinks(body.Result);
links.ToList().ForEach(Console.WriteLine);
}
}
}
LinkChecker.cs - file:
using System;
using System.Linq;
using System.Collections.Generic;
using System.Threading.Tasks;
using HtmlAgilityPack;
namespace checklinksconsole
{
public class LinkChecker
{
public static IEnumerable<string> GetLinks(string page)
{
var htmlDocument = new HtmlDocument();
htmlDocument.LoadHtml(page);
var links = htmlDocument.DocumentNode.SelectNodes("//a[#href]")
.Select(n => n.GetAttributeValue("href", string.Empty))
.Where(l => !String.IsNullOrEmpty(l))
.Where(l => l.StartsWith("http"));
return links;
}
}
}
Unit testing - checklinksTests:
checklinksTests.csproj - file:
<Project Sdk="Microsoft.NET.Sdk">
<PropertyGroup>
<TargetFramework>netcoreapp2.2</TargetFramework>
<IsPackable>false</IsPackable>
</PropertyGroup>
<ItemGroup>
<PackageReference Include="Microsoft.NET.Test.Sdk" Version="15.9.0" />
<PackageReference Include="xunit" Version="2.4.0" />
<PackageReference Include="xunit.runner.visualstudio" Version="2.4.0" />
</ItemGroup>
<ItemGroup>
<ProjectReference Include="..\checklinksconsole\code\checklinksconsole.csproj" />
</ItemGroup>
</Project>
UnitTest1.cs - file:
using System;
using Xunit;
namespace checklinksTests
{
public class UnitTest1
{
[Fact]
public void WithoutHTTPAtTheStartOfTheLink_NoLinks()
{
var links = LinkChecker.GetLinks("<a href=\"google.com\" />");
Assert.Equal(links.Count(),0);
}
[Fact]
public void WithHTTPAtTheStartOfTheLink_LinkParses()
{
var links = LinkChecker.GetLinks("<a href=\"http://google.com\" />");
Assert.Equal(links.Count(),1);
Assert.Equal(links.First(), "google.com");
}
}
}
Any idea on what is wring with my code.
Thank you

You’re missing a using checklinksconsole; directive at the top of your test class to bring the LinkChecker class into scope.

ServiceStack Service which has a Stream in its request breaks metadata page

When I create a simple ServiceStack service with a Stream in the request, I find that I am unable to access the metadata page for the service method.
The service itself appears to work (I can send a stream to http://localhost:12345/uploadStream using PostMan and I can deserialize the stream in the service method OK with a bit of extra code.)
I am using .NET Core and Servicestack...
Complete repo:
using Funq;
using Microsoft.AspNetCore.Builder;
using Microsoft.AspNetCore.Hosting;
using Microsoft.AspNetCore.Http;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Logging;
using ServiceStack;
using ServiceStack.Web;
using System;
using System.IO;
using System.Threading.Tasks;
namespace ServiceStackCoreTest
{
class Program
{
static void Main(string[] args)
{
IWebHost host = new WebHostBuilder()
.UseKestrel()
.UseContentRoot(Directory.GetCurrentDirectory())
.UseStartup<Startup>()
.UseUrls("http://*:12345/test/")
.Build();
host.Run();
}
}
public class Startup
{
public void ConfigureServices(IServiceCollection services){ }
public void Configure(IApplicationBuilder app, IHostingEnvironment env)
{
app.ApplicationServices.GetService<ILoggerFactory>();
app.UseServiceStack((AppHostBase)Activator.CreateInstance<AppHost>());
app.Run((RequestDelegate)(context => (Task)Task.FromResult<int>(0)));
}
}
public class AppHost : AppHostBase
{
public AppHost() : base("Test Service", typeof(Program).GetAssembly()){ }
public override void Configure(Container container){ }
}
public class MyService : Service
{
public TestResponse Any(TestRequest request)
{
return new TestResponse();
}
}
[Route("/uploadStream", "POST", Summary = "Upload stream")]
public class TestRequest : IReturn<TestResponse>, IRequiresRequestStream
{
public Stream RequestStream { get; set; }
}
public class TestResponse{ }
}
My complete csproj (I am using Windows 10 / VS2017)...
<Project Sdk="Microsoft.NET.Sdk">
<PropertyGroup>
<OutputType>Exe</OutputType>
<TargetFramework>netcoreapp1.1</TargetFramework>
</PropertyGroup>
<ItemGroup>
<PackageReference Include="Microsoft.AspNetCore.Hosting" Version="1.1.1" />
<PackageReference Include="ServiceStack.Core" Version="1.0.40" />
<PackageReference Include="ServiceStack.Kestrel" Version="1.0.40" />
</ItemGroup>
</Project>
When I browse to the metadata page, I can see the list of operations, but when I click on 'XML', 'JSON' or 'JSV' next to the 'TestRequest' method, I get an error ERR_INCOMPLETE_CHUNKED_ENCODING in chrome (Edge reports nothing), and in my output window, I see Exception thrown: 'System.MemberAccessException' in System.Private.CoreLib.ni.dll. Oddly enough, clicking on 'CSV' gives me a metadata page.
Am I creating the service method incorrectly in my ServiceStack project?

The .NET Core package had an issue where wasn't able to create an instance of an abstract class (Stream) which should now be resolved from this commit.
This change is available from v1.0.41 *.Core packages that are now available on NuGet.