/// <summary>
/// 初始化数据库的时候更改表结构,创建唯一键
/// </summary>
/// <returns></returns>
public async Task InitTableSchema()
{
// 数据库表名和字段名不能写死, 因为可能会在后面重构阶段更改
dbContext.Database.ExecuteSqlCommand(string.Format("alter table {0} add constraint unique_RecruitUser_nickname unique ({1});", nameof(recruit_user), nameof(recruit_user.nickname)));
dbContext.Database.ExecuteSqlCommand(string.Format("alter table {0} add constraint unique_RecruitUser_phone unique ({1});", nameof(recruit_user), nameof(recruit_user.phone)));
dbContext.Database.ExecuteSqlCommand(string.Format("alter table {0} add constraint unique_RecruitUser_email unique ({1});", nameof(recruit_user), nameof(recruit_user.email)));
await dbContext.SaveChangesAsync();
}
public Task SaveChanges() => _context.SaveChangesAsync();
public async Task SaveChanges() => await _context.SaveChangesAsync();