/// <summary>
/// 登录
/// </summary>
/// <param name="db"></param>
/// <param name="username"></param>
/// <param name="password"></param>
/// <returns></returns>
public async static Task <LoginOrRegisterResult> LoginAsync(PublicBicyclesContext db, string username, string password)
{
//判断参数是否为空
if (string.IsNullOrWhiteSpace(username) || string.IsNullOrWhiteSpace(password))
{
return(new LoginOrRegisterResult()
{
Type = LoginOrRegisterResultType.Empty
});
}
//寻找用户名与密码都匹配的用户
User user = await db.Users
.FirstOrDefaultAsync(p => p.Username == username && p.Password == CreateMD5(username + password));
if (user == null)
{
//返回用户名或密码错误
return(new LoginOrRegisterResult()
{
Type = LoginOrRegisterResultType.Wrong
});
}
db.Entry(user).State = EntityState.Modified;
//修改并保存用户信息
await db.SaveChangesAsync();
return(new LoginOrRegisterResult()
{
User = user
});
}
/// <summary>
/// 设置密码
/// </summary>
/// <param name="db"></param>
/// <param name="user">车主</param>
/// <param name="password">新密码</param>
/// <returns></returns>
public async static Task SetPasswordAsync(PublicBicyclesContext db, User user, string password)
{
user.Password = CreateMD5(user.Username + password);
db.Entry(user).State = EntityState.Modified;
await db.SaveChangesAsync();
}