Entity Framework Core Customize Scaffolding

Question

I have done scaffolding of my SQLServer database. And it creates the POCO objects in the specified folder. What i would like to do is that it extends from my base class. I a

Answer 1

In case you want to modify entity names (and file and class names) here's something that might help:

Based on Chris Peacock's answer (and comments) you can build two classes to modify the names of entities and files (this works in Core 2.2).

public class CustomEFUtilities : CSharpUtilities
{
    public override string Uniquifier(
        string proposedIdentifier, ICollection existingIdentifiers)
    {
        var finalIdentifier = base.Uniquifier(proposedIdentifier, existingIdentifiers);
        
        // your changes here
        if (finalIdentifier.StartsWith("tl"))
        {
            finalIdentifier = finalIdentifier.Substring(2);
        }
        
        return finalIdentifier;
    }
}

And similarly:

public class CustomEFDesignTimeServices : IDesignTimeServices
{
    public void ConfigureDesignTimeServices(IServiceCollection serviceCollection)
    {
        serviceCollection.AddSingleton();
    }
}

Edit (EF Core 3.1)

A breaking change was introduced (https://docs.microsoft.com/en-us/ef/core/what-is-new/ef-core-3.0/breaking-changes#microsoftentityframeworkcoredesign-is-now-a-developmentdependency-package) so you need to modify your project file:

If you need to reference this package to override EF Core's design-time behavior, then you can update PackageReference item metadata in your project.

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