using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.ComponentModel.DataAnnotations.Schema;
using System.Data.Entity;
using System.Data.Entity.ModelConfiguration;

namespace ChatRoomServer.Db.Entities
{
	/// <summary>
	///历史在线人数记录
	///</summary>
	public class OnlineHistory
	{
		/// <summary>
		/// 时间
		/// </summary>
		public DateTime Time { get; set; }

		/// <summary>
		/// 房间ID
		/// </summary>
		public string RoomID { get; set; }

		/// <summary>
		/// 在线人数
		/// </summary>
		public int OnlineCount { get; set; }

	}

	/// <summary>
	/// 实体类 <see cref="OnlineHistory" /> 的配置对象
	/// </summary>
	internal class OnlineHistoryConfiguration : EntityTypeConfiguration<OnlineHistory>
	{
		public OnlineHistoryConfiguration()
		{
			ToTable("Chat_OnlineHistory");
			HasKey(m => new { m.Time, m.RoomID });
			Property(s => s.Time).HasDatabaseGeneratedOption(DatabaseGeneratedOption.None);
			Property(s => s.RoomID).HasMaxLength(50).IsRequired().HasDatabaseGeneratedOption(DatabaseGeneratedOption.None);
		}
	}
}