AvaloniaStack/Avalonia-EFCore/Models/WeatherForecastEntity.cs

using Microsoft.EntityFrameworkCore;
using System.ComponentModel.DataAnnotations;
using System.ComponentModel.DataAnnotations.Schema;

namespace Avalonia_EFCore.Models
{
    /// <summary>
    /// 天气预报数据实体。
    /// </summary>
    [Comment("天气预报数据实体")]
    [Table("weather-forecast")]
    public class WeatherForecastEntity
    {
        /// <summary>
        /// 获取或设置天气预报主键 ID（自增）。
        /// </summary>
        [Key]
        [Comment("天气预报主键")]
        [Column("id")]
        [DatabaseGenerated(DatabaseGeneratedOption.Identity)]
        public int Id { get; set; }

        /// <summary>
        /// 获取或设置预报日期。
        /// </summary>
        [Comment("预报日期")]
        [Column("date")]
        public DateOnly Date { get; set; }

        /// <summary>
        /// 获取或设置摄氏温度。
        /// </summary>
        [Comment("摄氏温度")]
        [Column("temperature-c")]
        public int TemperatureC { get; set; }

        /// <summary>
        /// 获取或设置天气摘要。
        /// </summary>
        [Comment("天气摘要")]
        [Column("summary")]
        [MaxLength(200)]
        public string? Summary { get; set; }

        /// <summary>
        /// 获取或设置记录创建时间。
        /// </summary>
        [Comment("创建时间")]
        [Column("created-at")]
        public DateTime CreatedAt { get; set; } = DateTime.UtcNow;

        /// <summary>
        /// 获取或设置记录最后更新时间。
        /// </summary>
        [Comment("更新时间")]
        [Column("updated-at")]
        public DateTime UpdatedAt { get; set; } = DateTime.UtcNow;
    }
}