// ========================================================================
// Copyright 2007 - Volian Enterprises, Inc. All rights reserved.          
// Volian Enterprises - Proprietary Information - DO NOT COPY OR DISTRIBUTE
// ------------------------------------------------------------------------
// $Workfile: $     $Revision: $                                           
// $Author: $   $Date: $                                                   
//                                                                         
// $History: $                                                             
// ========================================================================

using System;
using System.Data;
using System.Data.SqlClient;
using Csla;
using Csla.Data;
using System.Configuration;
using System.IO;
using System.ComponentModel;
using System.Collections.Generic;
using Csla.Validation;
namespace VEPROMS.CSLA.Library
{
	/// <summary>
	///	Part Generated by MyGeneration using the CSLA Object Mapping template
	/// </summary>
	[Serializable()]
	[TypeConverter(typeof(PartConverter))]
	public partial class Part : BusinessBase<Part>, IDisposable, IVEHasBrokenRules
	{
		#region Log4Net
		private static readonly log4net.ILog _MyLog = log4net.LogManager.GetLogger(System.Reflection.MethodBase.GetCurrentMethod().DeclaringType);
		#endregion
		#region Refresh
		private List<Part> _RefreshParts = new List<Part>();
		private void AddToRefreshList(List<Part> refreshParts)
		{
			if (IsDirty)
				refreshParts.Add(this);
		}
		private void BuildRefreshList()
		{
			_RefreshParts = new List<Part>();
			AddToRefreshList(_RefreshParts);
		}
		private void ProcessRefreshList()
		{
			foreach (Part tmp in _RefreshParts)
			{
				PartInfo.Refresh(tmp);
				if (tmp._MyContent != null) ContentInfo.Refresh(tmp._MyContent);
				if (tmp._MyItem != null) ItemInfo.Refresh(tmp._MyItem);
			}
		}
		#endregion
		#region Collection
		private static List<Part> _CacheList = new List<Part>();
		protected static void AddToCache(Part part)
		{
			if (!_CacheList.Contains(part)) _CacheList.Add(part); // In AddToCache
		}
		protected static void RemoveFromCache(Part part)
		{
			while (_CacheList.Contains(part)) _CacheList.Remove(part); // In RemoveFromCache
		}
		private static Dictionary<string, List<Part>> _CacheByPrimaryKey = new Dictionary<string, List<Part>>();
		private static void ConvertListToDictionary()
		{
			List<Part> remove = new List<Part>();
			foreach (Part tmp in _CacheList)
			{
				if (!_CacheByPrimaryKey.ContainsKey(tmp.ContentID.ToString() + "_" + tmp.FromType.ToString()))
				{
					_CacheByPrimaryKey[tmp.ContentID.ToString() + "_" + tmp.FromType.ToString()] = new List<Part>(); // Add new list for PrimaryKey
				}
				_CacheByPrimaryKey[tmp.ContentID.ToString() + "_" + tmp.FromType.ToString()].Add(tmp); // Add to Primary Key list
				remove.Add(tmp);
			}
			foreach (Part tmp in remove)
				RemoveFromCache(tmp);
		}
		protected static Part GetCachedByPrimaryKey(int contentID, int fromType)
		{
			ConvertListToDictionary();
			string key = contentID.ToString() + "_" + fromType.ToString();
			if (_CacheByPrimaryKey.ContainsKey(key)) return _CacheByPrimaryKey[key][0];
			return null;
		}
		#endregion
		#region Business Methods
		private string _ErrorMessage = string.Empty;
		public string ErrorMessage
		{
			get { return _ErrorMessage; }
		}
		private int _ContentID;
		[System.ComponentModel.DataObjectField(true, true)]
		public int ContentID
		{
			[System.Runtime.CompilerServices.MethodImpl(System.Runtime.CompilerServices.MethodImplOptions.NoInlining)]
			get
			{
				CanReadProperty("ContentID", true);
				if (_MyContent != null) _ContentID = _MyContent.ContentID;
				return _ContentID;
			}
		}
		private Content _MyContent;
		[System.ComponentModel.DataObjectField(true, true)]
		public Content MyContent
		{
			[System.Runtime.CompilerServices.MethodImpl(System.Runtime.CompilerServices.MethodImplOptions.NoInlining)]
			get
			{
				CanReadProperty("MyContent", true);
				if (_MyContent == null && _ContentID != 0) _MyContent = Content.Get(_ContentID);
				return _MyContent;
			}
		}
		private int _FromType;
		[System.ComponentModel.DataObjectField(true, true)]
		public int FromType
		{
			[System.Runtime.CompilerServices.MethodImpl(System.Runtime.CompilerServices.MethodImplOptions.NoInlining)]
			get
			{
				CanReadProperty("FromType", true);
				return _FromType;
			}
		}
		private int _ItemID;
		public int ItemID
		{
			[System.Runtime.CompilerServices.MethodImpl(System.Runtime.CompilerServices.MethodImplOptions.NoInlining)]
			get
			{
				CanReadProperty("ItemID", true);
				if (_MyItem != null) _ItemID = _MyItem.ItemID;
				return _ItemID;
			}
		}
		private Item _MyItem;
		public Item MyItem
		{
			[System.Runtime.CompilerServices.MethodImpl(System.Runtime.CompilerServices.MethodImplOptions.NoInlining)]
			get
			{
				CanReadProperty("MyItem", true);
				if (_MyItem == null && _ItemID != 0) _MyItem = Item.Get(_ItemID);
				return _MyItem;
			}
			[System.Runtime.CompilerServices.MethodImpl(System.Runtime.CompilerServices.MethodImplOptions.NoInlining)]
			set
			{
				CanWriteProperty("MyItem", true);
				if (_MyItem != value)
				{
					_MyItem = value;
					PropertyHasChanged();
				}
			}
		}
		private DateTime _DTS = new DateTime();
		public DateTime DTS
		{
			[System.Runtime.CompilerServices.MethodImpl(System.Runtime.CompilerServices.MethodImplOptions.NoInlining)]
			get
			{
				CanReadProperty("DTS", true);
				return _DTS;
			}
			[System.Runtime.CompilerServices.MethodImpl(System.Runtime.CompilerServices.MethodImplOptions.NoInlining)]
			set
			{
				CanWriteProperty("DTS", true);
				if (_DTS != value)
				{
					_DTS = value;
					PropertyHasChanged();
				}
			}
		}
		private string _UserID = string.Empty;
		public string UserID
		{
			[System.Runtime.CompilerServices.MethodImpl(System.Runtime.CompilerServices.MethodImplOptions.NoInlining)]
			get
			{
				CanReadProperty("UserID", true);
				return _UserID;
			}
			[System.Runtime.CompilerServices.MethodImpl(System.Runtime.CompilerServices.MethodImplOptions.NoInlining)]
			set
			{
				CanWriteProperty("UserID", true);
				if (value == null) value = string.Empty;
				if (_UserID != value)
				{
					_UserID = value;
					PropertyHasChanged();
				}
			}
		}
		private byte[] _LastChanged = new byte[8];//timestamp
		public override bool IsDirty
		{
			get { return base.IsDirty || (_MyContent == null ? false : _MyContent.IsDirty) || (_MyItem == null ? false : _MyItem.IsDirty); }
		}
		public override bool IsValid
		{
			get { return (IsNew && !IsDirty ? true : base.IsValid) && (_MyContent == null ? true : _MyContent.IsValid) && (_MyItem == null ? true : _MyItem.IsValid); }
		}
		// TODO: Replace base Part.ToString function as necessary
		/// <summary>
		/// Overrides Base ToString
		/// </summary>
		/// <returns>A string representation of current Part</returns>
		//public override string ToString()
		//{
		//  return base.ToString();
		//}
		// TODO: Check Part.GetIdValue to assure that the ID returned is unique
		/// <summary>
		/// Overrides Base GetIdValue - Used internally by CSLA to determine equality
		/// </summary>
		/// <returns>A Unique ID for the current Part</returns>
		protected override object GetIdValue()
		{
			return (_ContentID.ToString() + "." + _FromType.ToString()).GetHashCode();
		}
		#endregion
		#region ValidationRules
		[NonSerialized]
		private bool _CheckingBrokenRules = false;
		public IVEHasBrokenRules HasBrokenRules
		{
			get
			{
				if (_CheckingBrokenRules) return null;
				if ((IsDirty || !IsNew) && BrokenRulesCollection.Count > 0) return this;
				try
				{
					_CheckingBrokenRules = true;
					IVEHasBrokenRules hasBrokenRules = null;
					if (_MyItem != null && (hasBrokenRules = _MyItem.HasBrokenRules) != null) return hasBrokenRules;
					return hasBrokenRules;
				}
				finally
				{
					_CheckingBrokenRules = false;
				}
			}
		}
		public BrokenRulesCollection BrokenRules
		{
			get
			{
				IVEHasBrokenRules hasBrokenRules = HasBrokenRules;
				if (this.Equals(hasBrokenRules)) return BrokenRulesCollection;
				return (hasBrokenRules != null ? hasBrokenRules.BrokenRules : null);
			}
		}
		protected override void AddBusinessRules()
		{
			ValidationRules.AddRule<Part>(MyItemRequired, "MyItem");
			ValidationRules.AddRule(
				Csla.Validation.CommonRules.StringRequired, "UserID");
			ValidationRules.AddRule(
				Csla.Validation.CommonRules.StringMaxLength,
				new Csla.Validation.CommonRules.MaxLengthRuleArgs("UserID", 100));
			//ValidationRules.AddDependantProperty("x", "y");
			_PartExtension.AddValidationRules(ValidationRules);
			// TODO:  Add other validation rules
		}
		protected override void AddInstanceBusinessRules()
		{
			_PartExtension.AddInstanceValidationRules(ValidationRules);
			// TODO:  Add other validation rules
		}
		private static bool MyItemRequired(Part target, Csla.Validation.RuleArgs e)
		{
			if (target._ItemID == 0 && target._MyItem == null) // Required field missing
			{
				e.Description = "Required";
				return false;
			}
			return true;
		}
		// Sample data comparison validation rule
		//private bool StartDateGTEndDate(object target, Csla.Validation.RuleArgs e)
		//{
		//	if (_started > _ended)
		//	{
		//		e.Description = "Start date can't be after end date";
		//		return false;
		//	}
		//	else
		//		return true;
		//}
		#endregion
		#region Authorization Rules
		protected override void AddAuthorizationRules()
		{
			//TODO: Who can read/write which fields
			//AuthorizationRules.AllowRead(ContentID, "<Role(s)>");
			//AuthorizationRules.AllowRead(FromType, "<Role(s)>");
			//AuthorizationRules.AllowRead(ItemID, "<Role(s)>");
			//AuthorizationRules.AllowRead(DTS, "<Role(s)>");
			//AuthorizationRules.AllowRead(UserID, "<Role(s)>");
			//AuthorizationRules.AllowWrite(ItemID, "<Role(s)>");
			//AuthorizationRules.AllowWrite(DTS, "<Role(s)>");
			//AuthorizationRules.AllowWrite(UserID, "<Role(s)>");
			_PartExtension.AddAuthorizationRules(AuthorizationRules);
		}
		protected override void AddInstanceAuthorizationRules()
		{
			//TODO: Who can read/write which fields
			_PartExtension.AddInstanceAuthorizationRules(AuthorizationRules);
		}
		public static bool CanAddObject()
		{
			// TODO: Can Add Authorization
			//return Csla.ApplicationContext.User.IsInRole("ProjectManager");
			return true;
		}
		public static bool CanGetObject()
		{
			// TODO: CanGet Authorization
			return true;
		}
		public static bool CanDeleteObject()
		{
			// TODO: CanDelete Authorization
			//bool result = false;
			//if (Csla.ApplicationContext.User.IsInRole("ProjectManager"))result = true;
			//if (Csla.ApplicationContext.User.IsInRole("Administrator"))result = true;
			//return result;
			return true;
		}
		public static bool CanEditObject()
		{
			// TODO: CanEdit Authorization
			//return Csla.ApplicationContext.User.IsInRole("ProjectManager");
			return true;
		}
		#endregion
		#region Factory Methods
		public int CurrentEditLevel
		{ get { return EditLevel; } }
		private static int _PartUnique = 0;
		protected static int PartUnique
		{ get { return ++_PartUnique; } }
		private int _MyPartUnique = PartUnique;
		public int MyPartUnique
		{ get { return _MyPartUnique; } }
		protected Part()
		{/* require use of factory methods */
			AddToCache(this);
		}
		public void Dispose()
		{
			RemoveFromDictionaries();
		}
		private void RemoveFromDictionaries()
		{
			RemoveFromCache(this);
			if (_CacheByPrimaryKey.ContainsKey(ContentID.ToString() + "_" + FromType.ToString()))
			{
				List<Part> listPart = _CacheByPrimaryKey[ContentID.ToString() + "_" + FromType.ToString()]; // Get the list of items
				while (listPart.Contains(this)) listPart.Remove(this); // Remove the item from the list
				if (listPart.Count == 0) //If there are no items left in the list
					_CacheByPrimaryKey.Remove(ContentID.ToString() + "_" + FromType.ToString()); // remove the list
			}
		}
		public static Part New()
		{
			if (!CanAddObject())
				throw new System.Security.SecurityException("User not authorized to add a Part");
			try
			{
				return DataPortal.Create<Part>();
			}
			catch (Exception ex)
			{
				throw new DbCslaException("Error on Part.New", ex);
			}
		}
		public static Part New(Content myContent, int fromType, Item myItem)
		{
			Part tmp = Part.New();
			tmp._MyContent = myContent;
			tmp._FromType = fromType;
			tmp.MyItem = myItem;
			return tmp;
		}
		public static Part MakePart(Content myContent, int fromType, Item myItem)
		{
			Part tmp = Part.New(myContent, fromType, myItem);
			if (tmp.IsSavable)
			{
				Part tmp2 = tmp;
				tmp = tmp2.Save();
				tmp2.Dispose();
			}
			else
			{
				Csla.Validation.BrokenRulesCollection brc = tmp.ValidationRules.GetBrokenRules();
				tmp._ErrorMessage = "Failed Validation:";
				foreach (Csla.Validation.BrokenRule br in brc)
				{
					tmp._ErrorMessage += "\r\n\tFailure: " + br.RuleName;
				}
			}
			return tmp;
		}
		public static Part New(Content myContent, int fromType, Item myItem, DateTime dts, string userID)
		{
			Part tmp = Part.New();
			tmp._MyContent = myContent;
			tmp._FromType = fromType;
			tmp.MyItem = myItem;
			tmp.DTS = dts;
			tmp.UserID = userID;
			return tmp;
		}
		public static Part MakePart(Content myContent, int fromType, Item myItem, DateTime dts, string userID)
		{
			Part tmp = Part.New(myContent, fromType, myItem, dts, userID);
			if (tmp.IsSavable)
			{
				Part tmp2 = tmp;
				tmp = tmp2.Save();
				tmp2.Dispose();
			}
			else
			{
				Csla.Validation.BrokenRulesCollection brc = tmp.ValidationRules.GetBrokenRules();
				tmp._ErrorMessage = "Failed Validation:";
				foreach (Csla.Validation.BrokenRule br in brc)
				{
					tmp._ErrorMessage += "\r\n\tFailure: " + br.RuleName;
				}
			}
			return tmp;
		}
		public static Part Get(int contentID, int fromType)
		{
			if (!CanGetObject())
				throw new System.Security.SecurityException("User not authorized to view a Part");
			try
			{
				Part tmp = GetCachedByPrimaryKey(contentID, fromType);
				if (tmp == null)
				{
					tmp = DataPortal.Fetch<Part>(new PKCriteria(contentID, fromType));
					AddToCache(tmp);
				}
				if (tmp.ErrorMessage == "No Record Found") 
				{
					tmp.Dispose(); // Clean-up Part
					tmp = null;
				}
				return tmp;
			}
			catch (Exception ex)
			{
				throw new DbCslaException("Error on Part.Get", ex);
			}
		}
		public static Part Get(SafeDataReader dr)
		{
			if (dr.Read()) return new Part(dr);
			return null;
		}
		internal Part(SafeDataReader dr)
		{
			ReadData(dr);
		}
		public static void Delete(int contentID, int fromType)
		{
			if (!CanDeleteObject())
				throw new System.Security.SecurityException("User not authorized to remove a Part");
			try
			{
				DataPortal.Delete(new PKCriteria(contentID, fromType));
			}
			catch (Exception ex)
			{
				throw new DbCslaException("Error on Part.Delete", ex);
			}
		}
		public override Part Save()
		{
			if (IsDeleted && !CanDeleteObject())
				throw new System.Security.SecurityException("User not authorized to remove a Part");
			else if (IsNew && !CanAddObject())
				throw new System.Security.SecurityException("User not authorized to add a Part");
			else if (!CanEditObject())
				throw new System.Security.SecurityException("User not authorized to update a Part");
			try
			{
				BuildRefreshList();
				Part part = base.Save();
				RemoveFromDictionaries(); // if save is successful remove the previous Folder from the cache
				AddToCache(part);//Refresh the item in AllList
				ProcessRefreshList();
				return part;
			}
			catch (Exception ex)
			{
				throw new DbCslaException("Error on CSLA Save", ex);
			}
		}
		#endregion
		#region Data Access Portal
		[Serializable()]
		protected class PKCriteria
		{
			private int _ContentID;
			public int ContentID
			{ get { return _ContentID; } }
			private int _FromType;
			public int FromType
			{ get { return _FromType; } }
			public PKCriteria(int contentID, int fromType)
			{
				_ContentID = contentID;
				_FromType = fromType;
			}
		}
		// TODO: If Create needs to access DB - It should not be marked RunLocal
		[RunLocal()]
		private new void DataPortal_Create()
		{

			// Database Defaults
			_DTS = _PartExtension.DefaultDTS;
			_UserID = _PartExtension.DefaultUserID;
			// TODO: Add any defaults that are necessary
			ValidationRules.CheckRules();
		}
		private void ReadData(SafeDataReader dr)
		{
			if (_MyLog.IsDebugEnabled) _MyLog.DebugFormat("[{0}] Part.ReadData", GetHashCode());
			try
			{
				_ContentID = dr.GetInt32("ContentID");
				_FromType = dr.GetInt32("FromType");
				_ItemID = dr.GetInt32("ItemID");
				_DTS = dr.GetDateTime("DTS");
				_UserID = dr.GetString("UserID");
				dr.GetBytes("LastChanged", 0, _LastChanged, 0, 8);
				MarkOld();
			}
			catch (Exception ex)
			{
				if (_MyLog.IsErrorEnabled) _MyLog.Error("Part.ReadData", ex);
				_ErrorMessage = ex.Message;
				throw new DbCslaException("Part.ReadData", ex);
			}
		}
		private void DataPortal_Fetch(PKCriteria criteria)
		{
			if (_MyLog.IsDebugEnabled) _MyLog.DebugFormat("[{0}] Part.DataPortal_Fetch", GetHashCode());
			try
			{
				using (SqlConnection cn = Database.VEPROMS_SqlConnection)
				{
					ApplicationContext.LocalContext["cn"] = cn;
					using (SqlCommand cm = cn.CreateCommand())
					{
						cm.CommandType = CommandType.StoredProcedure;
						cm.CommandText = "getPart";
						cm.Parameters.AddWithValue("@ContentID", criteria.ContentID);
						cm.Parameters.AddWithValue("@FromType", criteria.FromType);
						using (SafeDataReader dr = new SafeDataReader(cm.ExecuteReader()))
						{
							if (!dr.Read())
							{
								_ErrorMessage = "No Record Found";
								return;
							}
							ReadData(dr);
						}
					}
					// removing of item only needed for local data portal
					if (ApplicationContext.ExecutionLocation == ApplicationContext.ExecutionLocations.Client)
						ApplicationContext.LocalContext.Remove("cn");
				}
			}
			catch (Exception ex)
			{
				if (_MyLog.IsErrorEnabled) _MyLog.Error("Part.DataPortal_Fetch", ex);
				_ErrorMessage = ex.Message;
				throw new DbCslaException("Part.DataPortal_Fetch", ex);
			}
		}
		[Transactional(TransactionalTypes.TransactionScope)]
		protected override void DataPortal_Insert()
		{
			try
			{
				using (SqlConnection cn = Database.VEPROMS_SqlConnection)
				{
					ApplicationContext.LocalContext["cn"] = cn;
					SQLInsert();
					// removing of item only needed for local data portal
					if (ApplicationContext.ExecutionLocation == ApplicationContext.ExecutionLocations.Client)
						ApplicationContext.LocalContext.Remove("cn");
				}
			}
			catch (Exception ex)
			{
				if (_MyLog.IsErrorEnabled) _MyLog.Error("Part.DataPortal_Insert", ex);
				_ErrorMessage = ex.Message;
				throw new DbCslaException("Part.DataPortal_Insert", ex);
			}
			finally
			{
				if (_MyLog.IsDebugEnabled) _MyLog.DebugFormat("[{0}] Part.DataPortal_Insert", GetHashCode());
			}
		}
		[Transactional(TransactionalTypes.TransactionScope)]
		internal void SQLInsert()
		{
			if (!this.IsDirty) return;
			try
			{
				if (_MyContent != null) _MyContent.Update();
				if (_MyItem != null) _MyItem.Update();
				SqlConnection cn = (SqlConnection)ApplicationContext.LocalContext["cn"];
				using (SqlCommand cm = cn.CreateCommand())
				{
					cm.CommandType = CommandType.StoredProcedure;
					cm.CommandText = "addPart";
					// Input All Fields - Except Calculated Columns
					cm.Parameters.AddWithValue("@ContentID", ContentID);
					cm.Parameters.AddWithValue("@FromType", _FromType);
					cm.Parameters.AddWithValue("@ItemID", ItemID);
					if (_DTS.Year >= 1753 && _DTS.Year <= 9999) cm.Parameters.AddWithValue("@DTS", _DTS);
					cm.Parameters.AddWithValue("@UserID", _UserID);
					// Output Calculated Columns
					SqlParameter param_LastChanged = new SqlParameter("@newLastChanged", SqlDbType.Timestamp);
					param_LastChanged.Direction = ParameterDirection.Output;
					cm.Parameters.Add(param_LastChanged);
					// TODO: Define any additional output parameters
					cm.ExecuteNonQuery();
					// Save all values being returned from the Procedure
					_LastChanged = (byte[])cm.Parameters["@newLastChanged"].Value;
				}
				MarkOld();
				// update child objects
				if (_MyLog.IsDebugEnabled) _MyLog.DebugFormat("[{0}] Part.SQLInsert", GetHashCode());
			}
			catch (Exception ex)
			{
				if (_MyLog.IsErrorEnabled) _MyLog.Error("Part.SQLInsert", ex);
				_ErrorMessage = ex.Message;
				throw new DbCslaException("Part.SQLInsert", ex);
			}
		}
		[Transactional(TransactionalTypes.TransactionScope)]
		public static byte[] Add(SqlConnection cn, Content myContent, int fromType, Item myItem, DateTime dts, string userID)
		{
			if (_MyLog.IsDebugEnabled) _MyLog.DebugFormat("[{0}] Part.Add", 0);
			try
			{
				using (SqlCommand cm = cn.CreateCommand())
				{
					cm.CommandType = CommandType.StoredProcedure;
					cm.CommandText = "addPart";
					// Input All Fields - Except Calculated Columns
					cm.Parameters.AddWithValue("@ContentID", myContent.ContentID);
					cm.Parameters.AddWithValue("@FromType", fromType);
					cm.Parameters.AddWithValue("@ItemID", myItem.ItemID);
					if (dts.Year >= 1753 && dts.Year <= 9999) cm.Parameters.AddWithValue("@DTS", dts);
					cm.Parameters.AddWithValue("@UserID", userID);
					// Output Calculated Columns
					SqlParameter param_LastChanged = new SqlParameter("@newLastChanged", SqlDbType.Timestamp);
					param_LastChanged.Direction = ParameterDirection.Output;
					cm.Parameters.Add(param_LastChanged);
					// TODO: Define any additional output parameters
					cm.ExecuteNonQuery();
					// Save all values being returned from the Procedure
					return (byte[])cm.Parameters["@newLastChanged"].Value;
				}
			}
			catch (Exception ex)
			{
				if (_MyLog.IsErrorEnabled) _MyLog.Error("Part.Add", ex);
				throw new DbCslaException("Part.Add", ex);
			}
		}
		[Transactional(TransactionalTypes.TransactionScope)]
		protected override void DataPortal_Update()
		{
			if (!IsDirty) return;	// If not dirty - nothing to do
			if (_MyLog.IsDebugEnabled) _MyLog.DebugFormat("[{0}] Part.DataPortal_Update", GetHashCode());
			try
			{
				using (SqlConnection cn = Database.VEPROMS_SqlConnection)
				{
					ApplicationContext.LocalContext["cn"] = cn;
					SQLUpdate();
					// removing of item only needed for local data portal
					if (ApplicationContext.ExecutionLocation == ApplicationContext.ExecutionLocations.Client)
						ApplicationContext.LocalContext.Remove("cn");
				}
			}
			catch (Exception ex)
			{
				if (_MyLog.IsErrorEnabled) _MyLog.Error("Part.DataPortal_Update", ex);
				_ErrorMessage = ex.Message;
				if (!ex.Message.EndsWith("has been edited by another user.")) throw ex;
			}
		}
		[Transactional(TransactionalTypes.TransactionScope)]
		internal void SQLUpdate()
		{
			if (!IsDirty) return;	// If not dirty - nothing to do
			if (_MyLog.IsDebugEnabled) _MyLog.DebugFormat("[{0}] Part.SQLUpdate", GetHashCode());
			try
			{
				if (_MyContent != null) _MyContent.Update();
				if (_MyItem != null) _MyItem.Update();
				SqlConnection cn = (SqlConnection)ApplicationContext.LocalContext["cn"];
				if (base.IsDirty)
				{
					using (SqlCommand cm = cn.CreateCommand())
					{
						cm.CommandType = CommandType.StoredProcedure;
						cm.CommandText = "updatePart";
						// All Fields including Calculated Fields
						cm.Parameters.AddWithValue("@ContentID", ContentID);
						cm.Parameters.AddWithValue("@FromType", _FromType);
						cm.Parameters.AddWithValue("@ItemID", ItemID);
						if (_DTS.Year >= 1753 && _DTS.Year <= 9999) cm.Parameters.AddWithValue("@DTS", _DTS);
						cm.Parameters.AddWithValue("@UserID", _UserID);
						cm.Parameters.AddWithValue("@LastChanged", _LastChanged);
						// Output Calculated Columns
						SqlParameter param_LastChanged = new SqlParameter("@newLastChanged", SqlDbType.Timestamp);
						param_LastChanged.Direction = ParameterDirection.Output;
						cm.Parameters.Add(param_LastChanged);
						// TODO: Define any additional output parameters
						cm.ExecuteNonQuery();
						// Save all values being returned from the Procedure
						_LastChanged = (byte[])cm.Parameters["@newLastChanged"].Value;
					}
				}
				MarkOld();
				// use the open connection to update child objects
			}
			catch (Exception ex)
			{
				if (_MyLog.IsErrorEnabled) _MyLog.Error("Part.SQLUpdate", ex);
				_ErrorMessage = ex.Message;
				if (!ex.Message.EndsWith("has been edited by another user.")) throw ex;
			}
		}
		internal void Update()
		{
			if (!this.IsDirty) return;
			if (base.IsDirty)
			{
				SqlConnection cn = (SqlConnection)ApplicationContext.LocalContext["cn"];
				if (IsNew)
					_LastChanged = Part.Add(cn, _MyContent, _FromType, _MyItem, _DTS, _UserID);
				else
					_LastChanged = Part.Update(cn, _MyContent, _FromType, _MyItem, _DTS, _UserID, ref _LastChanged);
				MarkOld();
			}
		}
		[Transactional(TransactionalTypes.TransactionScope)]
		public static byte[] Update(SqlConnection cn, Content myContent, int fromType, Item myItem, DateTime dts, string userID, ref byte[] lastChanged)
		{
			if (_MyLog.IsDebugEnabled) _MyLog.DebugFormat("[{0}] Part.Update", 0);
			try
			{
				using (SqlCommand cm = cn.CreateCommand())
				{
					cm.CommandType = CommandType.StoredProcedure;
					cm.CommandText = "updatePart";
					// Input All Fields - Except Calculated Columns
					cm.Parameters.AddWithValue("@ContentID", myContent.ContentID);
					cm.Parameters.AddWithValue("@FromType", fromType);
					cm.Parameters.AddWithValue("@ItemID", myItem.ItemID);
					if (dts.Year >= 1753 && dts.Year <= 9999) cm.Parameters.AddWithValue("@DTS", dts);
					cm.Parameters.AddWithValue("@UserID", userID);
					cm.Parameters.AddWithValue("@LastChanged", lastChanged);
					// Output Calculated Columns
					SqlParameter param_LastChanged = new SqlParameter("@newLastChanged", SqlDbType.Timestamp);
					param_LastChanged.Direction = ParameterDirection.Output;
					cm.Parameters.Add(param_LastChanged);
					// TODO: Define any additional output parameters
					cm.ExecuteNonQuery();
					// Save all values being returned from the Procedure
					return (byte[])cm.Parameters["@newLastChanged"].Value;
				}
			}
			catch (Exception ex)
			{
				if (_MyLog.IsErrorEnabled) _MyLog.Error("Part.Update", ex);
				throw new DbCslaException("Part.Update", ex);
			}
		}
		[Transactional(TransactionalTypes.TransactionScope)]
		protected override void DataPortal_DeleteSelf()
		{
			DataPortal_Delete(new PKCriteria(_ContentID, _FromType));
		}
		[Transactional(TransactionalTypes.TransactionScope)]
		private void DataPortal_Delete(PKCriteria criteria)
		{
			if (_MyLog.IsDebugEnabled) _MyLog.DebugFormat("[{0}] Part.DataPortal_Delete", GetHashCode());
			try
			{
				using (SqlConnection cn = Database.VEPROMS_SqlConnection)
				{
					using (SqlCommand cm = cn.CreateCommand())
					{
						cm.CommandType = CommandType.StoredProcedure;
						cm.CommandText = "deletePart";
						cm.Parameters.AddWithValue("@ContentID", criteria.ContentID);
						cm.Parameters.AddWithValue("@FromType", criteria.FromType);
						cm.ExecuteNonQuery();
					}
				}
			}
			catch (Exception ex)
			{
				if (_MyLog.IsErrorEnabled) _MyLog.Error("Part.DataPortal_Delete", ex);
				_ErrorMessage = ex.Message;
				throw new DbCslaException("Part.DataPortal_Delete", ex);
			}
		}
		[Transactional(TransactionalTypes.TransactionScope)]
		public static void Remove(SqlConnection cn, int contentID, int fromType)
		{
			if (_MyLog.IsDebugEnabled) _MyLog.DebugFormat("[{0}] Part.Remove", 0);
			try
			{
				using (SqlCommand cm = cn.CreateCommand())
				{
					cm.CommandType = CommandType.StoredProcedure;
					cm.CommandText = "deletePart";
					// Input PK Fields
					cm.Parameters.AddWithValue("@ContentID", contentID);
					cm.Parameters.AddWithValue("@FromType", fromType);
					// TODO: Define any additional output parameters
					cm.ExecuteNonQuery();
				}
			}
			catch (Exception ex)
			{
				if (_MyLog.IsErrorEnabled) _MyLog.Error("Part.Remove", ex);
				throw new DbCslaException("Part.Remove", ex);
			}
		}
		#endregion
		#region Exists
		public static bool Exists(int contentID, int fromType)
		{
			ExistsCommand result;
			try
			{
				result = DataPortal.Execute<ExistsCommand>(new ExistsCommand(contentID, fromType));
				return result.Exists;
			}
			catch (Exception ex)
			{
				throw new DbCslaException("Error on Part.Exists", ex);
			}
		}
		[Serializable()]
		private class ExistsCommand : CommandBase
		{
			private int _ContentID;
			private int _FromType;
			private bool _exists;
			public bool Exists
			{
				get { return _exists; }
			}
			public ExistsCommand(int contentID, int fromType)
			{
				_ContentID = contentID;
				_FromType = fromType;
			}
			protected override void DataPortal_Execute()
			{
				if (_MyLog.IsDebugEnabled) _MyLog.DebugFormat("[{0}] Part.DataPortal_Execute", GetHashCode());
				try
				{
					using (SqlConnection cn = Database.VEPROMS_SqlConnection)
					{
						cn.Open();
						using (SqlCommand cm = cn.CreateCommand())
						{
							cm.CommandType = CommandType.StoredProcedure;
							cm.CommandText = "existsPart";
							cm.Parameters.AddWithValue("@ContentID", _ContentID);
							cm.Parameters.AddWithValue("@FromType", _FromType);
							int count = (int)cm.ExecuteScalar();
							_exists = (count > 0);
						}
					}
				}
				catch (Exception ex)
				{
					if (_MyLog.IsErrorEnabled) _MyLog.Error("Part.DataPortal_Execute", ex);
					throw new DbCslaException("Part.DataPortal_Execute", ex);
				}
			}
		}
		#endregion
		// Standard Default Code
		#region extension
		PartExtension _PartExtension = new PartExtension();
		[Serializable()]
		partial class PartExtension : extensionBase
		{
		}
		[Serializable()]
		class extensionBase
		{
			// Default Values
			public virtual DateTime DefaultDTS
			{
				get { return DateTime.Now; }
			}
			public virtual string DefaultUserID
			{
				get { return Environment.UserName.ToUpper(); }
			}
			// Authorization Rules
			public virtual void AddAuthorizationRules(Csla.Security.AuthorizationRules rules)
			{
				// Needs to be overriden to add new authorization rules
			}
			// Instance Authorization Rules
			public virtual void AddInstanceAuthorizationRules(Csla.Security.AuthorizationRules rules)
			{
				// Needs to be overriden to add new authorization rules
			}
			// Validation Rules
			public virtual void AddValidationRules(Csla.Validation.ValidationRules rules)
			{
				// Needs to be overriden to add new validation rules
			}
			// InstanceValidation Rules
			public virtual void AddInstanceValidationRules(Csla.Validation.ValidationRules rules)
			{
				// Needs to be overriden to add new validation rules
			}
		}
		#endregion
	} // Class
	#region Converter
	internal class PartConverter : ExpandableObjectConverter
	{
		public override object ConvertTo(ITypeDescriptorContext context, System.Globalization.CultureInfo culture, object value, Type destType)
		{
			if (destType == typeof(string) && value is Part)
			{
				// Return the ToString value
				return ((Part)value).ToString();
			}
			return base.ConvertTo(context, culture, value, destType);
		}
	}
	#endregion
} // Namespace


//// The following is a sample Extension File.  You can use it to create PartExt.cs
//using System;
//using System.Collections.Generic;
//using System.Text;
//using Csla;

//namespace VEPROMS.CSLA.Library
//{
//  public partial class Part
//  {
//    partial class PartExtension : extensionBase
//    {
//      // TODO: Override automatic defaults
//      public virtual DateTime DefaultDTS
//      {
//        get { return DateTime.Now; }
//      }
//      public virtual string DefaultUserID
//      {
//        get { return Environment.UserName.ToUpper(); }
//      }
//      public new void AddAuthorizationRules(Csla.Security.AuthorizationRules rules)
//      {
//        //rules.AllowRead(Dbid, "<Role(s)>");
//      }
//      public new void AddInstanceAuthorizationRules(Csla.Security.AuthorizationRules rules)
//      {
//        //rules.AllowInstanceRead(Dbid, "<Role(s)>");
//      }
//      public new void AddValidationRules(Csla.Validation.ValidationRules rules)
//      {
//        rules.AddRule(
//          Csla.Validation.CommonRules.StringMaxLength,
//          new Csla.Validation.CommonRules.MaxLengthRuleArgs("Name", 100));
//      }
//      public new void AddInstanceValidationRules(Csla.Validation.ValidationRules rules)
//      {
//        rules.AddInstanceRule(/* Instance Validation Rule */);
//      }
//    }
//  }
//}