63 lines
2.4 KiB
C#
63 lines
2.4 KiB
C#
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using InSituLaboratory.Entities;
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using Microsoft.EntityFrameworkCore;
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using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
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using System.Globalization;
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namespace InSituLaboratory.ORM
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{
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public class NoimptyDbContext : DbContext
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{
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public NoimptyDbContext(DbContextOptions<NoimptyDbContext> options) : base(options)
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{ }
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protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder)
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{
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if (!optionsBuilder.IsConfigured)
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optionsBuilder.UseMySql("server=localhost;port=3306;database=20240301_insitulaboratory;user=root;password=zttZTT1234", new MySqlServerVersion(new Version(8, 0, 33)));
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}
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protected override void OnModelCreating(ModelBuilder modelBuilder)
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{
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// 联合主键
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modelBuilder.Entity<RoleMenu>()
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.HasKey(pk => new { pk.RoleId, pk.MenuId });
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modelBuilder.Entity<RoleUser>()
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.HasKey(pk => new { pk.RoleId, pk.UserId });
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//角色表的一对多关系 角色对用户
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modelBuilder.Entity<RoleUser>()
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.HasOne(u => u.SysRole)
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.WithMany(r => r.Users)
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.OnDelete(DeleteBehavior.Cascade);
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modelBuilder.Entity<RoleMenu>()
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.HasOne(u => u.SysRole)
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.WithMany(r => r.Menus)
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.OnDelete(DeleteBehavior.Cascade);
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//用户对角色
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modelBuilder.Entity<RoleUser>()
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.HasOne(u => u.User)
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.WithMany(r => r.Roles);
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// 页面-》数据库的转换
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// 数据库-》页面的转换
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ValueConverter iconValueConverter =
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new ValueConverter<string, string>(
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p2d => string.IsNullOrEmpty(p2d) ? null : ((int)p2d.ToArray()[0]).ToString("x"),
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d2p => d2p == null ? "" : ((char)int.Parse(d2p, NumberStyles.HexNumber)).ToString()
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);
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modelBuilder.Entity<SysMenu>()
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.Property(m => m.MenuIcon)
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.HasConversion(iconValueConverter);
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}
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public virtual DbSet<SysUser> SysUser { get; set; }
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public virtual DbSet<SysMenu> SysMenu { get; set; }
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public virtual DbSet<SysRole> SysRole { get; set; }
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public virtual DbSet<RoleMenu> RoleMenu { get; set; }
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public virtual DbSet<RoleUser> RoleUser { get; set; }
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}
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}
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