AspNet EF migration

When we develop a web application with AspNet, we do not need to initialize our database with sql command.

We can write code first and use migration command to generate a migration script provided by AspNet EF.

1. Write code (entity, configuration)

   // entity file
   namespace WebApp.Domain.Entities;
   
   public class FooBar
   {
     public int Id { get; set; }
     public string name { get; set; }
   }
   
   // configuration file
   using WebApp.Domain.Entities;
   using Microsoft.EntityFrameworkCore;
   using Microsoft.EntityFrameworkCore.Metadata.Builders;
   
   namespace WebApp.Infrastructure.Persistence.Configurations
   
   public class FooBarConfiguration : IEntityTypeConfiguration<FooBar>
   {
     public void Configure(EntityTypeBuilder<FooBar> builder)
     {
       builder.HasKey(p => p.Id);
     }
   }
   

2. Generate migration

   dotnet ef migrations add [CustomizedMigrationName]
   

3. Apply migration to database

   dotnet ef database update