// ========================================================================
// Copyright 2006 - 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;

namespace Volian.CSLA.Library
{
	/// <summary>
	///	FolderAssignments Generated by MyGeneration using the CSLA Object Mapping template
	/// </summary>
	[Serializable()]
	public partial class FolderAssignments : BusinessListBase<FolderAssignments, FolderAssignment>
	{
		#region Business Methods
		private string _errorMessage = string.Empty;
		public string ErrorMessage
		{
			get { return _errorMessage; }
		}
		// Many To Many
		public FolderAssignment this[int gid, int rid]
		{
			get
			{
				foreach (FolderAssignment assignment in this)
					if (assignment.GID == gid && assignment.RID == rid)
						return assignment;
				return null;
			}
		}
		public FolderAssignment GetItem(int gid, int rid)
		{
			foreach (FolderAssignment assignment in this)
				if (assignment.GID == gid && assignment.RID == rid)
					return assignment;
			return null;
		}
		public FolderAssignment Add(int gid, int rid)
		{
			if (!Contains(gid, rid))
			{
				FolderAssignment assignment =	FolderAssignment.New(gid, rid);
				this.Add(assignment);
				return assignment;
			}
			else
				throw new InvalidOperationException("assignment already exists");
		}
		public void Remove(int gid, int rid)
		{
			foreach (FolderAssignment assignment in this)
			{
				if (assignment.GID == gid && assignment.RID == rid)
				{
					Remove(assignment);
					break;
				}
			}
		}
		public bool Contains(int gid, int rid)
		{
			foreach (FolderAssignment assignment in this)
				if (assignment.GID == gid && assignment.RID == rid)
					return true;
			return false;
		}
		public bool ContainsDeleted(int gid, int rid)
		{
			foreach (FolderAssignment assignment in DeletedList)
				if (assignment.GID == gid && assignment.RID == rid)
					return true;
			return false;
		}
		#endregion
		#region Factory Methods
		internal static FolderAssignments New()
		{
			return new FolderAssignments();
		}
		internal static FolderAssignments Get(SafeDataReader dr)
		{
			return new FolderAssignments(dr);
		}
		private FolderAssignments()
		{
			MarkAsChild();
		}
		private FolderAssignments(SafeDataReader dr)
		{
			MarkAsChild();
			Fetch(dr);
		}
		#endregion
		#region Data Access Portal
		// called to load data from the database
		private void Fetch(SafeDataReader dr)
		{
			this.RaiseListChangedEvents = false;
			while (dr.Read())
				this.Add(FolderAssignment.Get(dr));
			this.RaiseListChangedEvents = true;
		}
		internal void Update(Folder folder, SqlConnection cn)
		{
			this.RaiseListChangedEvents = false;
			try
			{
				// update (thus deleting) any deleted child objects
				foreach (FolderAssignment obj in DeletedList)
					obj.DeleteSelf(folder, cn);
				// now that they are deleted, remove them from memory too
				DeletedList.Clear();
				// add/update any current child objects
				foreach (FolderAssignment obj in this)
				{
					if (obj.IsNew)
						obj.Insert(folder, cn);
					else
						obj.Update(folder, cn);
				}
			}
			finally
			{
				this.RaiseListChangedEvents = true;
			}
		}
		#endregion
	} // Class
} // Namespace