多重上下文 ef-core

Question

I'm working with EF Core and I decided split the DbContexts I'm using. Everything is right but I notice that when I create the migrations for each context, EF tries to create the tables again even if the other context had created that table previously. I think EF Core must be trying to update the tables instead of trying to create them but I don't know why EF Core would do that.

AccountsContext :

 public class AccountsContext : BaseContext<AccountContext>
 {
        public AccountContext(DbContextOptions<AccountsContext> options): base (options){}
    public DbSet<Account> Accounts { get; set; }

    protected override void OnModelCreating(ModelBuilder modelBuilder)
    {
        modelBuilder.Entity<Account>().HasKey(a => a.id);
        modelBuilder.Entity<Account>().Property(a => a.Name).HasField("_name");
        modelBuilder.Entity<Account>().Property(a => a.Role).HasField("_role");
        modelBuilder.Entity<Account>().OwnsOne(a => a.Password);
        modelBuilder.Entity<Account>().OwnsOne(a => a.Email);
    }
}

CampaignContext :

public class CampaignContext: BaseContext<CampaignContext>
{
      public CampaignContext(DbContextOptions<CampaignContext> options): base (options){}

    public DbSet<Campaign> Campaing { get; set; }
    private DbSet<Account> Accounts { get; set; }

    protected override void OnModelCreating(ModelBuilder modelBuilder)
    {
        modelBuilder.Entity<Campaing>().ToTable("Campaings");
        modelBuilder.Entity<Campaing>().HasKey(a => a.Id);
        modelBuilder.Entity<Campaing>().HasOne(c => c.Owner);
        modelBuilder.Entity<Account>().ToTable("Accounts");
  }
}

Here is the scaffold of the migration in the campaign context. EF Core looks like its trying to create the accounts table even if it already exists in the database.

Answer 1

您应该指定要使用的上下文

dotnet ef Update Database -Context DbContext

Answer 2

Ef 核心中的每个上下文都被视为一个单独的数据库，因此您将该表放在两个数据库中我不知道您为什么要这样做，但是在两个迁移中看到该表是正常的