myAi/Apis/email-data/EmailDbContext.cs

using Email.Data.Entities;
using Microsoft.EntityFrameworkCore;

namespace Email.Data;

public sealed class EmailDbContext : DbContext
{
    public const string SchemaName = MigrationConstants.SchemaName;
    public const string MigrationTableName = MigrationConstants.MigrationTableName;

    public EmailDbContext(DbContextOptions<EmailDbContext> options) : base(options) { }

    public DbSet<EmailTemplateEntity> Templates => Set<EmailTemplateEntity>();

    protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder)
    {
        base.OnConfiguring(optionsBuilder);
        // Configure migration history table to use schema-qualified name: [email].[_Migrations]
        optionsBuilder.UseSqlServer(x => x.MigrationsHistoryTable(MigrationTableName, SchemaName));
    }

    protected override void OnModelCreating(ModelBuilder modelBuilder)
    {
        modelBuilder.HasDefaultSchema(SchemaName);

        modelBuilder.Entity<EmailTemplateEntity>(entity =>
        {
            entity.ToTable("Templates");
            entity.HasKey(x => new { x.Key, x.Language });
            entity.Property(x => x.Key).HasMaxLength(128);
            entity.Property(x => x.Language).HasMaxLength(8);
            entity.Property(x => x.Value).IsRequired();
            entity.Property(x => x.Description).HasMaxLength(500).HasDefaultValue(string.Empty);
            entity.Property(x => x.UpdatedAt).HasDefaultValueSql("SYSUTCDATETIME()");
            entity.Property(x => x.OperatorCopy).HasMaxLength(256).HasDefaultValue(string.Empty);
        });
    }
}