Asp.NETPersonnalBlogSystem/Models/Article.cs

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using System;
using System.Collections.Generic;
using System.ComponentModel.DataAnnotations;
using System.ComponentModel.DataAnnotations.Schema;

namespace Asp.NETPersonnalBlogSystem.Models
{
    /// <summary>
    /// 文章实体类
    /// 用于存储博客文章信息
    /// </summary>
    [Table("Articles")]
    public class Article
    {
        /// <summary>
        /// 文章ID，主键，自增
        /// </summary>
        [Key]
        [DatabaseGenerated(DatabaseGeneratedOption.Identity)]
        public int ArticleId { get; set; }

        /// <summary>
        /// 文章标题
        /// </summary>
        [Required(ErrorMessage = "文章标题不能为空")]
        [StringLength(200, ErrorMessage = "文章标题长度不能超过200个字符")]
        [Column("Title")]
        public string Title { get; set; }

        /// <summary>
        /// 文章摘要
        /// </summary>
        [StringLength(500)]
        [Column("Summary")]
        public string Summary { get; set; }

        /// <summary>
        /// 文章内容
        /// </summary>
        [Required(ErrorMessage = "文章内容不能为空")]
        [Column("Content")]
        public string Content { get; set; }

        /// <summary>
        /// 文章封面图片
        /// </summary>
        [StringLength(255)]
        [Column("CoverImage")]
        public string CoverImage { get; set; }

        /// <summary>
        /// 作者ID，外键关联Users表
        /// </summary>
        [Column("AuthorId")]
        public int AuthorId { get; set; }

        /// <summary>
        /// 分类ID，外键关联Categories表
        /// </summary>
        [Column("CategoryId")]