0
我正在使用Castle ActiveRecord來映射數據庫。插入父 - 兒童在Castle ActiveRecord
我有一個簡單的數據庫是這樣的： alt text http://cA5.upanh.com/10.194.14332219.LPR0/example.jpg 和映射代碼：
組：
[ActiveRecord("[Group]")]
public class Group : ActiveRecordBase
{
private long m_ID;
private string m_GroupName;
private string m_Description;
private IList<Contact> m_Contacts = new List<Contact>();
[PrimaryKey(Column = "`ID`", Generator = PrimaryKeyType.Identity)]
public long ID
{
get { return m_ID; }
set { m_ID = value; }
}
[Property(Column = "`GroupName`", NotNull = true)]
public string GroupName
{
get { return m_GroupName; }
set { m_GroupName = value; }
}
[Property(Column = "`Description`", NotNull = false)]
public string Description
{
get { return m_Description; }
set { m_Description = value; }
}
[HasAndBelongsToMany(typeof(Contact),
Table = "`Contact_Group`",
ColumnRef = "`ContactID`",
ColumnKey = "`GroupID`")]
public IList<Contact> Contacts
{
get { return m_Contacts; }
set { this.m_Contacts = value; }
}
public static Group[] FindAll()
{
try
{
return (Group[])ActiveRecordBase.FindAll(typeof(Group));
}
catch (Exception e)
{
MessageBox.Show(e.Message, "Loi", MessageBoxButtons.OK, MessageBoxIcon.Error);
return null;
}
}
聯繫人：
[ActiveRecord("[Contact]")]
public class Contact : ActiveRecordBase
{
private int m_ID;
private string m_FirstName;
private string m_LastName;
private string m_Number;
private string m_ExtraNumber;
private string m_Sex;
private DateTime m_DayOfBirth;
private string m_Email;
private string m_Address;
private string m_Company;
private string m_Nationality;
private string m_Career;
private string m_Picture;
private string m_ExtraInfo;
private IList<Group> m_Groups = new List<Group>();
[PrimaryKey(Column = "`ID`", Generator=PrimaryKeyType.Identity)]
public int ID
{
get { return this.m_ID; }
set { this.m_ID = value; }
}
[Property(Column = "`Number`", NotNull = true)]
public string Number
{
get { return m_Number; }
set { m_Number = value; }
}
[Property(Column = "`FirstName`", NotNull = true)]
public string FirstName
{
get { return m_FirstName; }
set { m_FirstName = value; }
}
[Property(Column = "`LastName`", NotNull = true)]
public string LastName
{
get { return m_LastName; }
set { m_LastName = value; }
}
[Property(Column = "`ExtraNumber`", NotNull = false)]
public string ExtraNumber
{
get { return m_ExtraNumber; }
set { m_ExtraNumber = value; }
}
[Property(Column = "Sex", NotNull = false)]
public string Sex
{
get { return m_Sex; }
set { m_Sex = value; }
}
[Property(Column = "`DayOfBirth`", NotNull = false)]
public DateTime DayOfBirth
{
get { return m_DayOfBirth; }
set { m_DayOfBirth = value; }
}
[Property(Column = "`Email`", NotNull = false)]
public string Email
{
get { return m_Email; }
set { m_Email = value; }
}
[Property(Column = "`Nationality`", NotNull = false)]
public string Nationality
{
get { return m_Nationality; }
set { m_Nationality = value; }
}
[Property(Column = "`Address`", NotNull = false)]
public string Address
{
get { return m_Address; }
set { m_Address = value; }
}
[Property(Column = "`Company`", NotNull = false)]
public string Company
{
get { return m_Company; }
set { m_Company = value; }
}
[Property(Column = "`Career`", NotNull = false)]
public string Career
{
get { return m_Career; }
set { m_Career = value; }
}
[Property(Column = "`Picture`", NotNull = false)]
public string Picture
{
get { return m_Picture; }
set { m_Picture = value; }
}
[Property(Column = "`ExtraInfo`", NotNull = false)]
public string ExtraInfo
{
get { return m_ExtraInfo; }
set { m_ExtraInfo = value; }
}
[HasAndBelongsToMany(typeof(Group),
Table = "`Contact_Group`",
ColumnRef = "`GroupID`",
ColumnKey = "`ContactID`")]
public IList<Group> Groups
{
get { return m_Groups; }
set { this.m_Groups = value; }
}
public Contact()
{
}
public Contact(string firstname, string lastname, string number)
{
this.m_FirstName = firstname;
this.m_LastName = lastname;
this.m_Number = number;
}
public override bool Equals(object obj)
{
if (this == obj)
{
return true;
}
Contact key = obj as Contact;
if (key == null)
{
return false;
}
if (this.m_Number == key.m_Number)
{
return true;
}
return false;
}
public override int GetHashCode()
{
return Convert.ToInt32(m_Number);
}
public static Contact[] FindAll()
{
try
{
return (Contact[]) ActiveRecordBase.FindAll(typeof(Contact));
}
catch (Exception e)
{
MessageBox.Show(e.Message, "Loi", MessageBoxButtons.OK, MessageBoxIcon.Error);
return null;
}
}
public static Contact FindByPrimaryKey(string id)
{
try
{
return (Contact)ActiveRecordBase.FindByPrimaryKey(typeof(Contact), id, false);
}
catch (Exception e)
{
MessageBox.Show(e.Message, "Loi", MessageBoxButtons.OK, MessageBoxIcon.Error);
return null;
}
}
public static Contact[] FindByKeyWord(string keyword)
{
try
{
SimpleQuery<Contact> q = new SimpleQuery<Contact>("from Contact c where c.FirstName like '%' || :key || '%' or c.LastName like '%' || :key || '%'");
q.SetParameter("key", keyword);
return q.Execute();
}
catch (Exception e)
{
MessageBox.Show(e.Message, "Loi", MessageBoxButtons.OK, MessageBoxIcon.Error);
return null;
}
}
public static bool Delete(string id)
{
Contact temp = (Contact)ActiveRecordBase.FindByPrimaryKey(typeof(Contact), id);
try { ActiveRecordBase.Delete(temp); return true; }
catch { return false; }
}
}
Contact_Group：
[Serializable]
public class Contact_Group_Key
{
private string m_ContactID;
private long m_GroupID;
[KeyProperty(Column="`ContactID`")]
public string ContactID
{
get { return m_ContactID; }
set { m_ContactID = value; }
}
[KeyProperty(Column="`GroupID`")]
public long GroupID
{
get { return m_GroupID; }
set { m_GroupID = value; }
}
public override int GetHashCode()
{ return this.m_GroupID.GetHashCode()^this.m_ContactID.GetHashCode(); }
public override bool Equals(object obj)
{
if (this == obj)
{
return true;
}
Contact_Group_Key key = obj as Contact_Group_Key;
if (key == null)
{
return false;
}
if (m_GroupID != key.m_GroupID || !m_ContactID.Equals(key.m_ContactID))
{
return false;
}
return true;
}
}
[ActiveRecord("[Contact_Group]")]
public class Contact_Group : ActiveRecordBase
{
private Contact_Group_Key m_Key;
private Contact m_Contact;
private Group m_Group;
[CompositeKey]
public Contact_Group_Key Key
{
get { return m_Key; }
set { m_Key = value; }
}
[BelongsTo("`GroupID`")]
public Group Group
{
set { this.m_Group = value; }
get { return this.m_Group; }
}
[BelongsTo("`ContactID`")]
public Contact Contact
{
set { this.m_Contact = value; }
get { return this.m_Contact; }
}
}
現在我想要將新聯繫人插入到聯繫人表中，並將一組Contact_Group添加到Contact_Group表。這是我的代碼：
public void Save()
{
try
{
if (this.view.CheckFields())
{
// Add new contact
if (this.contact == null)
{
Contact c = new Contact();
c.FirstName = this.view.GetFirstName();
c.LastName = this.view.GetLastName();
c.Number = this.view.GetNumber();
c.Sex = this.view.GetSex();
c.DayOfBirth = this.view.GetDayOfBirth();
c.Nationality = this.view.GetNationality();
c.ExtraNumber = this.view.GetExtraNumber();
c.Email = this.view.GetEmail();
c.Address = this.view.GetAddress();
c.Company = this.view.GetCompany();
c.Career = this.view.GetCareer();
c.ExtraInfo = this.view.GetExtraInfo();
// Check if the contact's number is valid
if (IsValidNumber(c.Number))
{
Group[] gs = this.view.GetGroupList();
foreach (Group g in groups)
{
c.Groups.Add(g);
}
c.CreateAndFlush();
}
}
else // Modify a contact
{
}
}
}
catch (OleDbException e)
{
MessageBox.Show(e.Message, "Loi", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
但執行完Save（）後，它只是插入一個沒有Contact_Group的新聯繫人。 在映射或Save（）方法中是否有錯誤？ Plz幫助我。先謝謝了。 P/S：我是NHibernate的新手。