C# EntityFramework 6 Mysql.NET Connector 6.9.9代码优先迁移
我有一个包含两个项目的解决方案,一个asp.net核心mvc 1.0.1和一个带有EF6的.net 4.6.1类库,其中包含我的实体、域模型、抽象和视图模型。我在asp.net核心项目中添加了类库作为参考。我将类库项目设置为启动项目,并启用迁移,甚至成功添加。但一旦我更新了数据库,我就会得到一个错误序列,其中不包含匹配的元素。因此,我切换并创建了同一个项目,但没有拆分为类库和web项目,它现在是一个asp.net mvc5项目,在启用迁移后,我甚至不能添加迁移。我添加了mysql.data.entity 6.9.9,并按照mysql本身的说明和互联网上的其他富指令进行操作,但仍然得到相同的错误 以下是我的dbcontext:C# EntityFramework 6 Mysql.NET Connector 6.9.9代码优先迁移,c#,mysql,asp.net-mvc-5,entity-framework-6,entity-framework-migrations,C#,Mysql,Asp.net Mvc 5,Entity Framework 6,Entity Framework Migrations,我有一个包含两个项目的解决方案,一个asp.net核心mvc 1.0.1和一个带有EF6的.net 4.6.1类库,其中包含我的实体、域模型、抽象和视图模型。我在asp.net核心项目中添加了类库作为参考。我将类库项目设置为启动项目,并启用迁移,甚至成功添加。但一旦我更新了数据库,我就会得到一个错误序列,其中不包含匹配的元素。因此,我切换并创建了同一个项目,但没有拆分为类库和web项目,它现在是一个asp.net mvc5项目,在启用迁移后,我甚至不能添加迁移。我添加了mysql.data.en
public class SchoolDb : IdentityDbContext<ApplicationUser>
{
public static string ConnString { get; set; } =
"Server=localhost; Database=schooldb; Uid=root; Pwd=l1nux43va;";
public SchoolDb() : base("SchoolDb")
{
}
public static SchoolDb Create()
{
return new SchoolDb();
}
public DbSet<Attendance> Attendance { get; set; }
public DbSet<Class> Classes { get; set; }
public DbSet<Student> Students { get; set; }
public DbSet<Result> Results { get; set; }
public DbSet<Teacher> Teachers { get; set; }
public DbSet<MedicalHistory> MedicalHistories { get; set; }
public DbSet<School> Schools { get; set; }
public DbSet<Subject> Subjects { get; set; }
public DbSet<Payment> Payments { get; set; }
public DbSet<SchoolSession> Sessions { get; set; }
public DbSet<TermWork> TermWorks { get; set; }
public DbSet<Staff> Staff { get; set; }
public DbSet<ScoreGrade> ScoreGrades { get; set; }
public DbSet<LessonPlan> LessonPlans { get; set; }
public DbSet<Hostel> Hostels { get; set; }
public DbSet<Guardian> Guardians { get; set; }
public DbSet<BehaviourActivity> BehaviourActivities { get; set; }
public DbSet<Rating> Ratings { get; set; }
public DbSet<TermWorkType> TermWorkTypes { get; set; }
public DbSet<EntranceExam> EntranceExam { get; set; }
public DbSet<EntranceExamCandidate> EntranceExamCandidate { get; set; }
public DbSet<EntranceExamSubject> EntranceExamSubject { get; set; }
protected override void OnModelCreating(DbModelBuilder modelBuilder)
{
base.OnModelCreating(modelBuilder);
modelBuilder.Conventions.Remove<ManyToManyCascadeDeleteConvention>();
modelBuilder.Conventions.Remove<OneToManyCascadeDeleteConvention>();
modelBuilder.Conventions.Remove<PluralizingTableNameConvention>();
//fluent annotations
modelBuilder.Entity<Attendance>()
.HasMany(a => a.Students);
modelBuilder.Entity<Attendance>()
.HasRequired(a => a.FormTeacher);
modelBuilder.Entity<BehaviourActivity>()
.HasRequired(b => b.Rating)
.WithOptional(r => r.BehaviourActivity);
modelBuilder.Entity<Class>()
.HasRequired(c => c.FormTeacher);
modelBuilder.Entity<Class>()
.HasOptional(c => c.Subjects).WithOptionalPrincipal();
modelBuilder.Entity<Club>()
.HasMany(c => c.Students);
modelBuilder.Entity<EntranceExam>()
.HasMany(e => e.EntranceExamCandidate)
.WithRequired(e => e.EntranceExam).WillCascadeOnDelete(true);
modelBuilder.Entity<EntranceExam>()
.HasMany(e => e.ExamSubjects)
.WithRequired(s => s.EntranceExam);
modelBuilder.Entity<EntranceExamCandidate>()
.HasMany(e => e.ExamSubjects)
.WithRequired(s => s.EntranceExamCandidate);
modelBuilder.Entity<Guardian>()
.HasMany(g => g.Students)
.WithRequired(s => s.Guardian);
modelBuilder.Entity<Hostel>()
.HasMany(h => h.Students);
modelBuilder.Entity<Hostel>()
.HasRequired(h => h.Patron);
modelBuilder.Entity<MedicalHistory>()
.HasMany(m => m.Disabilities)
.WithRequired(d => d.MedicalHistory);
modelBuilder.Entity<MedicalHistory>()
.HasMany(m => m.Illnesses)
.WithRequired(i => i.MedicalHistory);
modelBuilder.Entity<MedicalHistory>()
.HasMany(m => m.Allergies)
.WithRequired(a => a.MedicalHistory);
modelBuilder.Entity<Payment>()
.HasMany(p => p.PaymentTypes);
modelBuilder.Entity<Payment>()
.HasRequired(p => p.SchoolSession);
modelBuilder.Entity<Result>()
.HasRequired(r => r.Student);
modelBuilder.Entity<Result>()
.HasRequired(r => r.SchoolSession);
modelBuilder.Entity<Result>()
.HasRequired(r => r.Subject);
modelBuilder.Entity<School>()
.HasMany(s => s.Students);
modelBuilder.Entity<School>()
.HasMany(s => s.Teachers);
modelBuilder.Entity<School>()
.HasMany(s => s.Staff)
.WithRequired(s => s.School);
modelBuilder.Entity<SchoolSession>()
.HasRequired(ss => ss.School);
modelBuilder.Entity<Student>()
.HasMany(s => s.Payments)
.WithRequired(p => p.Student);
//modelBuilder.Entity<Student>()
// .HasMany(s => s.Subjects)
// .WithMany(s => s.Students)
// .Map(m =>
// {
// m.MapLeftKey("StudentId");
// m.MapRightKey("SubjectId");
// m.ToTable("StudentsSubjects");
// });
modelBuilder.Entity<Student>()
.HasOptional(s => s.MedicalHistory)
.WithRequired(m => m.Student);
modelBuilder.Entity<Student>()
.HasRequired(s => s.Class);
modelBuilder.Entity<Subject>()
.HasOptional(s => s.ScoreGrade)
.WithOptionalPrincipal(sg => sg.Subject);
modelBuilder.Entity<Teacher>()
.HasMany(t => t.LessonPlans)
.WithRequired(l => l.Teacher);
//modelBuilder.Entity<Teacher>()
// .HasMany(t => t.Subjects)
// .WithMany(s => s.Teachers)
// .Map(m =>
// {
// m.MapLeftKey("TeacherId");
// m.MapRightKey("SubjectId");
// m.ToTable("TeachersSubjects");
// });
modelBuilder.Entity<TermWork>()
.HasRequired(t => t.Student);
modelBuilder.Entity<TermWork>()
.HasRequired(t => t.SchoolSession);
modelBuilder.Entity<TermWork>()
.HasRequired(t => t.Subject);
modelBuilder.Entity<TermWork>()
.HasRequired(t => t.TermWorkType)
.WithOptional(tt => tt.TermWork);
}
}
公立学校数据库:IdentityDbContext
{
公共静态字符串ConnString{get;set;}=
“服务器=localhost;数据库=schooldb;Uid=root;Pwd=l1nux43va;”;
公立学校数据库():基本(“学校数据库”)
{
}
公共静态SchoolDb Create()
{
返回新的SchoolDb();
}
公共数据库集{get;set;}
公共数据库集类{get;set;}
公共数据库集学生{get;set;}
公共数据库集结果{get;set;}
公共数据库集{get;set;}
公共数据库集医疗历史记录{get;set;}
公立DbSet学校{get;set;}
公共数据库集主题{get;set;}
公共数据库集{get;set;}
公共数据库集会话{get;set;}
公共DbSet术语{get;set;}
公共DbSet Staff{get;set;}
公共DbSet ScoreGrades{get;set;}
公共数据库集LessonPlans{get;set;}
公共DbSet旅馆{get;set;}
公共数据库集监护人{get;set;}
公共数据库集活动{get;set;}
公共数据库集评级{get;set;}
公共数据库集TermWorkTypes{get;set;}
公共数据库集{get;set;}
公共数据库集入口ExamCandidate{get;set;}
公共DbSet examsubject{get;set;}
模型创建时受保护的覆盖无效(DbModelBuilder modelBuilder)
{
基于模型创建(modelBuilder);
modelBuilder.Conventions.Remove();
modelBuilder.Conventions.Remove();
modelBuilder.Conventions.Remove();
//流畅的注释
modelBuilder.Entity()
.有许多(a=>a.学生);
modelBuilder.Entity()
.HasRequired(a=>a.FormTeacher);
modelBuilder.Entity()
.HasRequired(b=>b.Rating)
.可选(r=>r.activity);
modelBuilder.Entity()
.HasRequired(c=>c.FormTeacher);
modelBuilder.Entity()
.has可选(c=>c.Subjects).WithOptionalPrincipal();
modelBuilder.Entity()
.有许多(c=>c.学生);
modelBuilder.Entity()
.HasMany(e=>e.enterExamAndidate)
.WithRequired(e=>e.EnterTest)。将级联删除(true);
modelBuilder.Entity()
.HasMany(e=>e.ExamSubjects)
.需要时(s=>s.考试);
modelBuilder.Entity()
.HasMany(e=>e.ExamSubjects)
.具有必需的(s=>s.EnterExamAndDate);
modelBuilder.Entity()
.HasMany(g=>g.Students)
。需要(s=>s.Guardian);
modelBuilder.Entity()
.有许多(h=>h.学生);
modelBuilder.Entity()
.HasRequired(h=>h.Patron);
modelBuilder.Entity()
.HasMany(m=>m.Disabilities)
.需要(d=>d.医疗历史);
modelBuilder.Entity()
.有许多(m=>m.疾病)
.需要(i=>i.医疗历史);
modelBuilder.Entity()
.有很多(m=>m.过敏)
.需要(a=>a.医疗历史);
modelBuilder.Entity()
.HasMany(p=>p.PaymentTypes);
modelBuilder.Entity()
.hassrequired(p=>p.SchoolSession);
modelBuilder.Entity()
.HasRequired(r=>r.Student);
modelBuilder.Entity()
.HasRequired(r=>r.SchoolSession);
modelBuilder.Entity()
.HasRequired(r=>r.Subject);
modelBuilder.Entity()
.有许多(s=>s.学生);
modelBuilder.Entity()
.有许多(s=>s.教师);
modelBuilder.Entity()
.HasMany(s=>s.Staff)
.需要(s=>s.School);
modelBuilder.Entity()
.has必选(ss=>ss.School);
modelBuilder.Entity()
.HasMany(s=>s.Payments)
.需要(p=>p.Student);
//modelBuilder.Entity()
//.有许多(s=>s.科目)
//.有许多(s=>s.学生)
//.Map(m=>
// {
//m.MapLeftKey(“学生ID”);
//m.MapRightKey(“主体”);
//m.ToTable(“学生对象”);
// });
modelBuilder.Entity()
.has可选(s=>s.MedicalHistory)
.需要(m=>m.Student);
modelBuilder.Entity()
.has必需(s=>s.Class);
modelBuilder.Entity()
.HAS可选(s=>s.ScoreGrade)
.与期权委托人(sg=>sg.Subject);
modelBuilder.Entity()
.HasMany(t=>t.lesson计划)
.带必选项(l=>l.教师);
//modelBuilder.Entity()
//.有许多(t=>t个受试者)
//.机智