using Microsoft.EntityFrameworkCore;
using System;
using System.Collections.Generic;
using System.ComponentModel.DataAnnotations;
using System.ComponentModel.DataAnnotations.Schema;
using System.Linq;
using VOL.Entity.SystemModels;

namespace VOL.Entity.DomainModels
{
    [Table("JS_Class")]
    [Entity(TableCnName = "京师班级表", TableName = "JS_Class")]
    public class JS_Class : BaseEntity
    {
        [Key]
        [DatabaseGenerated(DatabaseGeneratedOption.Identity)]
        public long Id { get; set; }

        [Required]
        [Column(TypeName = "nvarchar(100)")]
        public string SchoolCode { get; set; }

        [Required]
        [Column(TypeName = "nvarchar(100)")]
        public string Code { get; set; }

        /// <summary>年级外键（核心）</summary>
        [Required]
        public long GradeId { get; set; }

        /// <summary>年级编号（冗余字段）</summary>
        [Required]
        [Column(TypeName = "nvarchar(100)")]
        public string GradeNo { get; set; }

        [Required]
        [Column(TypeName = "nvarchar(100)")]
        public string GradeName { get; set; }

        /// <summary>班级编号（唯一）</summary>
        [Required]
        [Column(TypeName = "nvarchar(100)")]
        public string ClassNo { get; set; }

        [Required]
        [Column(TypeName = "nvarchar(100)")]
        public string ClassName { get; set; }

        /// <summary>
        ///教师编号
        /// </summary>
        [Display(Name = "教师编号")]
        [Comment("教师编号")]
        [Column(TypeName = "nvarchar(100)")]
        public string TeacherNo { get; set; }

        /// <summary>
        ///教师名称
        /// </summary>
        [Display(Name = "教师名称")]
        [Comment("教师名称")]
        [Column(TypeName = "nvarchar(100)")]
        public string TeacherName { get; set; }

        /// <summary>导航属性</summary>
        [ForeignKey(nameof(GradeId))]
        public JS_Grade Grade { get; set; }
    }

}