Issue when insert into mysql using PetaPoco Database.Insert<T> - mysql

Question

I have a small project using PetaPoco to re-implement Membership Provider, Role Provider and Profile Provider of ASP.NET. And each table has two common field: name and lowered_name. And I face an issue when try to insert new record into database using Database.Insert(), the lowered_name field can not be insert.
E.g we have a table called Category
CREATE TABLE `category` (
`name` varchar(100) NOT NULL,
`lowered_name` varchar(100) NOT NULL,
PRIMARY KEY (`lowered_name`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;
And a Category entity:
[TableName("category"), PrimaryKey("lowered_name")]
public class Category
{
[Column("name")]
public string Name { get; set; }
[Column("lowered_name")]
public string LoweredName { get; set; }
}
I have use PetaPoco to insert a new category like below
var name = Guid.NewGuid().ToString();
var cat = new Category() { Name = name, LoweredName = name.ToLower() };
var db = new Database("Test");
db.Insert(cat);
var retrievecat = db.SingleOrDefault<Category>("where lowered_name like #0", name.ToLower());
Console.WriteLine(retrievecat.LoweredName);
Assert.IsTrue(retrievecat != null);
However, this code doesn't work, a new record was create but the lowered_name field of the record is null.
When I change the db.Insert(cat) to:
db.Execute("insert into category(name, lowered_name) values (#0, #1)", name, name.ToLower());
Everything is fine.
I finished implement a lot of code for these providers above and they work well with PostGreSQL and SQL Server, and I don't want to re-implement every Insert function of each repository (I create a common Insert function in the AbstractRepository class).
Do you have any idea?
SchoTime has helped me to fixed the problem if lowered_name is a primary key. However, in my real app, name and lowered_name are not primary key.
I use an abstract class:
public abstract class AbstractEntity
{
#region Fields
private string _name;
#endregion Fields
#region Properties
[PetaPoco.Column(Name = "id")]
public long Id { get; set; }
[Required]
[PetaPoco.Column(Name = "name")]
public string Name
{
get { return _name; }
set
{
_name = value;
LoweredName = value.ToLower();
}
}
[Required]
[PetaPoco.Column(Name = "lowered_name")]
public string LoweredName { get; set; }
[PetaPoco.Column(Name = "description")]
public string Description { get; set; }
#endregion Properties
#region Initialization
public AbstractEntity()
{
}
public AbstractEntity(string name)
{
Name = name;
}
#endregion Initialization
}
And the User entity:
[PetaPoco.TableName("vietspring_security_user"), PetaPoco.PrimaryKey("id")]
public class User:AbstractEntity
{
#region Private Variables
private string _email;
#endregion
#region Constructors
public User():base()
{
InitMembers();
}
public User(int id)
{
Id = id;
InitMembers();
}
public User(string name): base(name)
{
Name = name;
InitMembers();
}
#endregion
#region Properties
[PetaPoco.Column("password")]
public virtual string Password { get; set; }
[PetaPoco.Column("password_format")]
public virtual int PasswordFormat { get; set; }
[PetaPoco.Column("password_salt")]
public virtual string PasswordSalt { get; set; }
[PetaPoco.Column("email")]
public virtual string Email
{
get
{
return _email;
}
set
{
_email = value;
LoweredEmail = value.ToLower();
}
}
[PetaPoco.Column("lowered_email")]
public virtual string LoweredEmail { get; set; }
[PetaPoco.Column("password_question")]
public virtual string PasswordQuestion { get; set; }
[PetaPoco.Column("password_answer")]
public virtual string PasswordAnswer { get; set; }
[PetaPoco.Column("comments")]
public virtual string Comments { get; set; }
[PetaPoco.Column("is_approved")]
public virtual bool IsApproved { get; set; }
[PetaPoco.Column("is_locked_out")]
public virtual bool IsLockedOut { get; set; }
[PetaPoco.Column("creation_date")]
public virtual DateTime CreationDate { get; set; }
[PetaPoco.Column("last_activity_date")]
public virtual DateTime LastActivityDate { get; set; }
[PetaPoco.Column("last_login_date")]
public virtual DateTime LastLoginDate { get; set; }
[PetaPoco.Column("last_locked_out_date")]
public virtual DateTime LastLockedOutDate { get; set; }
[PetaPoco.Column("last_password_change_date")]
public virtual DateTime LastPasswordChangeDate { get; set; }
[PetaPoco.Column("failed_password_attempt_count")]
public virtual int FailedPasswordAttemptCount { get; set; }
[PetaPoco.Column("failed_password_attempt_window_start")]
public virtual DateTime FailedPasswordAttemptWindowStart { get; set; }
[PetaPoco.Column("failed_password_answer_attempt_count")]
public virtual int FailedPasswordAnswerAttemptCount { get; set; }
[PetaPoco.Column("failed_password_answer_attempt_window_start")]
public virtual DateTime FailedPasswordAnswerAttemptWindowStart { get; set; }
[PetaPoco.ResultColumn]
public virtual IList<Application> Applications { get; set; }
#endregion
...
}
And in MembershipProvider, I call these below methods to create new User:
var userId = Convert.ToInt64(_userRepository.Insert(user));
_userRepository.AddApplication(app.Id, userId);
status = MembershipCreateStatus.Success;
I'm success in save user but name and lowered_name fields are null. How about this situation?

Answer 1

Because you have a primary key of lowered_name and it doesn't appear to be an auto increment column then you must set autoIncrement false as below.
[PrimaryKey("lowered_name", autoIncrement=false)]
AutoIncrement is true by default.