70 lines
2.0 KiB
C#
70 lines
2.0 KiB
C#
using Entities.Contracts;
|
||
using Microsoft.AspNetCore.Identity;
|
||
using Microsoft.EntityFrameworkCore;
|
||
using Microsoft.EntityFrameworkCore.Metadata.Builders;
|
||
|
||
namespace TechHelper.Context.Configuration
|
||
{
|
||
public class AssignmentConfiguration : IEntityTypeConfiguration<Assignment>
|
||
{
|
||
public void Configure(EntityTypeBuilder<Assignment> builder)
|
||
{
|
||
builder.ToTable("assignments");
|
||
|
||
builder.HasKey(a => a.Id);
|
||
|
||
builder.Property(a => a.Id)
|
||
.HasColumnName("id")
|
||
.ValueGeneratedOnAdd();
|
||
|
||
builder.Property(a => a.Title)
|
||
.IsRequired()
|
||
.HasColumnName("title")
|
||
.HasMaxLength(255);
|
||
|
||
builder.Property(a => a.Description)
|
||
.HasColumnName("description");
|
||
|
||
builder.Property(a => a.DueDate)
|
||
.IsRequired()
|
||
.HasColumnName("due_date");
|
||
|
||
builder.Property(a => a.TotalQuestions)
|
||
.HasColumnName("total_points");
|
||
|
||
builder.Property(a => a.CreatorId)
|
||
.HasColumnName("created_by");
|
||
|
||
builder.Property(a => a.CreatedAt)
|
||
.IsRequired()
|
||
.HasColumnName("created_at");
|
||
|
||
builder.Property(a => a.UpdatedAt)
|
||
.IsRequired()
|
||
.HasColumnName("updated_at");
|
||
|
||
builder.Property(a => a.IsDeleted)
|
||
.HasColumnName("deleted");
|
||
|
||
// 配置导航属性和关系
|
||
|
||
// 关系: Assignment (多) 到 User (一) - CreatedBy 外键
|
||
// 假设 User 实体有 Id 作为主键
|
||
// .WithMany() 表示 User 有多个 Assignment，但这里不指定 User 上的导航属性名称
|
||
// 如果 User 有一个名为 AssignmentsCreated 的导航属性，应写为 .WithMany(u => u.AssignmentsCreated)
|
||
builder.HasOne(a => a.Creator)
|
||
.WithMany() // User 实体没有指向 Assignment 的导航属性 (或我们不知道)
|
||
.HasForeignKey(a => a.CreatorId)
|
||
.IsRequired(); // CreatedBy 是必填的，对应 [Required] 在外键属性上
|
||
|
||
|
||
|
||
builder.HasOne(a=>a.ExamStruct)
|
||
.WithOne()
|
||
.HasForeignKey<Assignment>(a=>a.ExamStructId)
|
||
.OnDelete(DeleteBehavior.Cascade);
|
||
|
||
}
|
||
}
|
||
}
|