Question

的ApplicationContext

public class ApplicationContext : DbContext
{
    public ApplicationContext() : base("name=DbConnection") { }

    public virtual DbSet<Account> Accounts { get; set; }
    public virtual DbSet<Credential> Credentials { get; set; } 
}

WebConfig

<connectionStrings>
    <add name="DbConnection" connectionString="Data Source=DESKTOP-98TG6JE\SERVER_2014;Initial Catalog=SMBITS;User ID=sa;Password=password" providerName="System.Data.SqlClient" />
</connectionStrings>

CreateAccountManager

private readonly SqlConnection _dbConnection;
private readonly ApplicationContext _context;

public CreateAccountManager()
{
    _dbConnection = new SqlConnection(ConfigurationManager.ConnectionStrings["DbConnection"].ConnectionString);
    _context = new ApplicationContext();
}


public string CreateAccount(CreateAccountViewModel account)
{
    var result = "Failed in creating account";
    if (UserNameExists(account.UserName))
        return "Username is already taken";

    using (var context = _context.Database.BeginTransaction())
    {
        try
        {
            var acct = new Account
            {
                FirstName = account.FirstName,
                LastName = account.LastName,
                MiddleName = account.MiddleName,
                Status = "Active"
            };
            _context.Accounts.Add(acct);
            _context.SaveChanges();

            var credential = new Credential
            {
                AccountId = acct.AccountId,
                Password = account.Password,
                UserName = account.UserName
            };
            _context.Credentials.Add(credential);
            _context.SaveChanges();

            context.Commit();
            result = "Successfully created the account";
        }
        catch
        {
            context.Rollback();
        }
    }
    return result;
}

public bool UserNameExists(string username)
{
    var result = false;
    const string query = "SELECT CredentialId from credential where UserName = @UserName";
    using (var cmd = new SqlCommand(query, _dbConnection))
    {
        try
        {
            cmd.Parameters.AddWithValue("@UserName", username);

            _dbConnection.Open();

            var rdr = cmd.ExecuteReader();
            if (rdr.HasRows)
                result = true;
        }
        catch
        {
            return true;
            // ignore
        }
        finally
        {
            _dbConnection.Close();
        }
    }
    return result;
}

运行代码时没有任何错误。 accountId递增，首先它是1然后是2然后是3然后是4，这意味着它正在保存（据我所知）。但是，当我检查Web配置中声明的数据库时，我看不到插入的数据。此外，我有一种感觉，数据正在保存，但可能会被保存到另一个数据库，因为即使我一次又一次地使用相同的用户名，我总是得到假，意思是，它找不到重复。所以我猜它确实被保存在另一个数据库中。你能告诉我这个数据库的位置，以及如何将它指向正确的数据库。

context.commit成功但未反映在数据库中

0 个答案: