// ========================================================================
// 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>
    ///	Assignment Generated by MyGeneration using the CSLA Object Mapping template
    /// </summary>
    [Serializable()]
    [TypeConverter(typeof(AssignmentConverter))]
    public partial class Assignment : BusinessBase<Assignment>, IDisposable, IVEHasBrokenRules
    {
        #region Log4Net
        private static readonly log4net.ILog _MyLog = log4net.LogManager.GetLogger(System.Reflection.MethodBase.GetCurrentMethod().DeclaringType);
        #endregion
        #region Refresh
        private List<Assignment> _RefreshAssignments = new List<Assignment>();
        private void AddToRefreshList(List<Assignment> refreshAssignments)
        {
            if (IsDirty)
                refreshAssignments.Add(this);
        }
        private void BuildRefreshList()
        {
            _RefreshAssignments = new List<Assignment>();
            AddToRefreshList(_RefreshAssignments);
        }
        private void ProcessRefreshList()
        {
            foreach (Assignment tmp in _RefreshAssignments)
            {
                AssignmentInfo.Refresh(tmp);
                if (tmp._MyFolder != null) FolderInfo.Refresh(tmp._MyFolder);
                if (tmp._MyGroup != null) GroupInfo.Refresh(tmp._MyGroup);
                if (tmp._MyRole != null) RoleInfo.Refresh(tmp._MyRole);
            }
        }
        #endregion
        #region Collection
        private static List<Assignment> _CacheList = new List<Assignment>();
        protected static void AddToCache(Assignment assignment)
        {
            if (!_CacheList.Contains(assignment)) _CacheList.Add(assignment); // In AddToCache
        }
        protected static void RemoveFromCache(Assignment assignment)
        {
            while (_CacheList.Contains(assignment)) _CacheList.Remove(assignment); // In RemoveFromCache
        }
        private static Dictionary<string, List<Assignment>> _CacheByPrimaryKey = new Dictionary<string, List<Assignment>>();
        private static void ConvertListToDictionary()
        {
            List<Assignment> remove = new List<Assignment>();
            foreach (Assignment tmp in _CacheList)
            {
                if (!_CacheByPrimaryKey.ContainsKey(tmp.AID.ToString()))
                {
                    _CacheByPrimaryKey[tmp.AID.ToString()] = new List<Assignment>(); // Add new list for PrimaryKey
                }
                _CacheByPrimaryKey[tmp.AID.ToString()].Add(tmp); // Add to Primary Key list
                remove.Add(tmp);
            }
            foreach (Assignment tmp in remove)
                RemoveFromCache(tmp);
        }
        protected static Assignment GetCachedByPrimaryKey(int aid)
        {
            ConvertListToDictionary();
            string key = aid.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 static int _nextAID = -1;
        public static int NextAID
        {
            get { return _nextAID--; }
        }
        private int _AID;
        [System.ComponentModel.DataObjectField(true, true)]
        public int AID
        {
            [System.Runtime.CompilerServices.MethodImpl(System.Runtime.CompilerServices.MethodImplOptions.NoInlining)]
            get
            {
                return _AID;
            }
        }
        private int _GID;
        public int GID
        {
            [System.Runtime.CompilerServices.MethodImpl(System.Runtime.CompilerServices.MethodImplOptions.NoInlining)]
            get
            {
                if (_MyGroup != null) _GID = _MyGroup.GID;
                return _GID;
            }
        }
        private Group _MyGroup;
        public Group MyGroup
        {
            [System.Runtime.CompilerServices.MethodImpl(System.Runtime.CompilerServices.MethodImplOptions.NoInlining)]
            get
            {
                if (_MyGroup == null && _GID != 0) _MyGroup = Group.Get(_GID);
                return _MyGroup;
            }
            [System.Runtime.CompilerServices.MethodImpl(System.Runtime.CompilerServices.MethodImplOptions.NoInlining)]
            set
            {
                if (_MyGroup != value)
                {
                    _MyGroup = value;
                    PropertyHasChanged();
                }
            }
        }
        private int _RID;
        public int RID
        {
            [System.Runtime.CompilerServices.MethodImpl(System.Runtime.CompilerServices.MethodImplOptions.NoInlining)]
            get
            {
                if (_MyRole != null) _RID = _MyRole.RID;
                return _RID;
            }
        }
        private Role _MyRole;
        public Role MyRole
        {
            [System.Runtime.CompilerServices.MethodImpl(System.Runtime.CompilerServices.MethodImplOptions.NoInlining)]
            get
            {
                if (_MyRole == null && _RID != 0) _MyRole = Role.Get(_RID);
                return _MyRole;
            }
            [System.Runtime.CompilerServices.MethodImpl(System.Runtime.CompilerServices.MethodImplOptions.NoInlining)]
            set
            {
                if (_MyRole != value)
                {
                    _MyRole = value;
                    PropertyHasChanged();
                }
            }
        }
        private int _FolderID;
        public int FolderID
        {
            [System.Runtime.CompilerServices.MethodImpl(System.Runtime.CompilerServices.MethodImplOptions.NoInlining)]
            get
            {
                if (_MyFolder != null) _FolderID = _MyFolder.FolderID;
                return _FolderID;
            }
        }
        private Folder _MyFolder;
        public Folder MyFolder
        {
            [System.Runtime.CompilerServices.MethodImpl(System.Runtime.CompilerServices.MethodImplOptions.NoInlining)]
            get
            {
                if (_MyFolder == null && _FolderID != 0) _MyFolder = Folder.Get(_FolderID);
                return _MyFolder;
            }
            [System.Runtime.CompilerServices.MethodImpl(System.Runtime.CompilerServices.MethodImplOptions.NoInlining)]
            set
            {
                if (_MyFolder != value)
                {
                    _MyFolder = value;
                    PropertyHasChanged();
                }
            }
        }
        private string _StartDate = string.Empty;
        public string StartDate
        {
            [System.Runtime.CompilerServices.MethodImpl(System.Runtime.CompilerServices.MethodImplOptions.NoInlining)]
            get
            {
                return _StartDate;
            }
            [System.Runtime.CompilerServices.MethodImpl(System.Runtime.CompilerServices.MethodImplOptions.NoInlining)]
            set
            {
                if (value == null) value = string.Empty;
                _StartDate = value;
                try
                {
                    SmartDate tmp = new SmartDate(value);
                    if (_StartDate != tmp.ToString())
                    {
                        _StartDate = tmp.ToString();
                        // TODO: Any Cross Property Validation
                    }
                }
                catch
                {
                }
                PropertyHasChanged();
            }
        }
        private string _EndDate = string.Empty;
        public string EndDate
        {
            [System.Runtime.CompilerServices.MethodImpl(System.Runtime.CompilerServices.MethodImplOptions.NoInlining)]
            get
            {
                return _EndDate;
            }
            [System.Runtime.CompilerServices.MethodImpl(System.Runtime.CompilerServices.MethodImplOptions.NoInlining)]
            set
            {
                if (value == null) value = string.Empty;
                _EndDate = value;
                try
                {
                    SmartDate tmp = new SmartDate(value);
                    if (_EndDate != tmp.ToString())
                    {
                        _EndDate = tmp.ToString();
                        // TODO: Any Cross Property Validation
                    }
                }
                catch
                {
                }
                PropertyHasChanged();
            }
        }
        private DateTime _DTS = new DateTime();
        public DateTime DTS
        {
            [System.Runtime.CompilerServices.MethodImpl(System.Runtime.CompilerServices.MethodImplOptions.NoInlining)]
            get
            {
                return _DTS;
            }
            [System.Runtime.CompilerServices.MethodImpl(System.Runtime.CompilerServices.MethodImplOptions.NoInlining)]
            set
            {
                if (_DTS != value)
                {
                    _DTS = value;
                    PropertyHasChanged();
                }
            }
        }
        private string _UsrID = string.Empty;
        public string UsrID
        {
            [System.Runtime.CompilerServices.MethodImpl(System.Runtime.CompilerServices.MethodImplOptions.NoInlining)]
            get
            {
                return _UsrID;
            }
            [System.Runtime.CompilerServices.MethodImpl(System.Runtime.CompilerServices.MethodImplOptions.NoInlining)]
            set
            {
                if (value == null) value = string.Empty;
                if (_UsrID != value)
                {
                    _UsrID = value;
                    PropertyHasChanged();
                }
            }
        }
        private byte[] _LastChanged = new byte[8];//timestamp
        public override bool IsDirty
        {
            get { return base.IsDirty || (_MyFolder == null ? false : _MyFolder.IsDirty) || (_MyGroup == null ? false : _MyGroup.IsDirty) || (_MyRole == null ? false : _MyRole.IsDirty); }
        }
        public override bool IsValid
        {
            get { return (IsNew && !IsDirty ? true : base.IsValid) && (_MyFolder == null ? true : _MyFolder.IsValid) && (_MyGroup == null ? true : _MyGroup.IsValid) && (_MyRole == null ? true : _MyRole.IsValid); }
        }
        // TODO: Replace base Assignment.ToString function as necessary
        /// <summary>
        /// Overrides Base ToString
        /// </summary>
        /// <returns>A string representation of current Assignment</returns>
        //public override string ToString()
        //{
        //  return base.ToString();
        //}
        // TODO: Check Assignment.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 Assignment</returns>
        protected override object GetIdValue()
        {
            return _AID;
        }
        #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 (_MyGroup != null && (hasBrokenRules = _MyGroup.HasBrokenRules) != null) return hasBrokenRules;
                    if (_MyRole != null && (hasBrokenRules = _MyRole.HasBrokenRules) != null) return hasBrokenRules;
                    if (_MyFolder != null && (hasBrokenRules = _MyFolder.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<Assignment>(MyGroupRequired, "MyGroup");
            ValidationRules.AddRule<Assignment>(MyRoleRequired, "MyRole");
            ValidationRules.AddRule<Assignment>(MyFolderRequired, "MyFolder");
            ValidationRules.AddRule(
                Csla.Validation.CommonRules.StringRequired, "StartDate");
            ValidationRules.AddRule<Assignment>(StartDateValid, "StartDate");
            ValidationRules.AddRule<Assignment>(EndDateValid, "EndDate");
            ValidationRules.AddRule(
                Csla.Validation.CommonRules.StringRequired, "UsrID");
            ValidationRules.AddRule(
                Csla.Validation.CommonRules.StringMaxLength,
                new Csla.Validation.CommonRules.MaxLengthRuleArgs("UsrID", 100));
            //ValidationRules.AddDependantProperty("x", "y");
            _AssignmentExtension.AddValidationRules(ValidationRules);
            // TODO:  Add other validation rules
        }
        protected override void AddInstanceBusinessRules()
        {
            _AssignmentExtension.AddInstanceValidationRules(ValidationRules);
            // TODO:  Add other validation rules
        }
        private static bool StartDateValid(Assignment target, Csla.Validation.RuleArgs e)
        {
            try
            {
                DateTime tmp = SmartDate.StringToDate(target._StartDate);
            }
            catch
            {
                e.Description = "Invalid Date";
                return false;
            }
            return true;
        }
        private static bool EndDateValid(Assignment target, Csla.Validation.RuleArgs e)
        {
            try
            {
                DateTime tmp = SmartDate.StringToDate(target._EndDate);
            }
            catch
            {
                e.Description = "Invalid Date";
                return false;
            }
            return true;
        }
        private static bool MyGroupRequired(Assignment target, Csla.Validation.RuleArgs e)
        {
            if (target._GID == 0 && target._MyGroup == null) // Required field missing
            {
                e.Description = "Required";
                return false;
            }
            return true;
        }
        private static bool MyRoleRequired(Assignment target, Csla.Validation.RuleArgs e)
        {
            if (target._RID == 0 && target._MyRole == null) // Required field missing
            {
                e.Description = "Required";
                return false;
            }
            return true;
        }
        private static bool MyFolderRequired(Assignment target, Csla.Validation.RuleArgs e)
        {
            if (target._FolderID == 0 && target._MyFolder == 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(AID, "<Role(s)>");
            //AuthorizationRules.AllowRead(GID, "<Role(s)>");
            //AuthorizationRules.AllowRead(RID, "<Role(s)>");
            //AuthorizationRules.AllowRead(FolderID, "<Role(s)>");
            //AuthorizationRules.AllowRead(StartDate, "<Role(s)>");
            //AuthorizationRules.AllowRead(EndDate, "<Role(s)>");
            //AuthorizationRules.AllowRead(DTS, "<Role(s)>");
            //AuthorizationRules.AllowRead(UsrID, "<Role(s)>");
            //AuthorizationRules.AllowWrite(GID, "<Role(s)>");
            //AuthorizationRules.AllowWrite(RID, "<Role(s)>");
            //AuthorizationRules.AllowWrite(FolderID, "<Role(s)>");
            //AuthorizationRules.AllowWrite(StartDate, "<Role(s)>");
            //AuthorizationRules.AllowWrite(EndDate, "<Role(s)>");
            //AuthorizationRules.AllowWrite(DTS, "<Role(s)>");
            //AuthorizationRules.AllowWrite(UsrID, "<Role(s)>");
            _AssignmentExtension.AddAuthorizationRules(AuthorizationRules);
        }
        protected override void AddInstanceAuthorizationRules()
        {
            //TODO: Who can read/write which fields
            _AssignmentExtension.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 _AssignmentUnique = 0;
        protected static int AssignmentUnique
        { get { return ++_AssignmentUnique; } }
        private int _MyAssignmentUnique = AssignmentUnique;
        public int MyAssignmentUnique
        { get { return _MyAssignmentUnique; } }
        protected Assignment()
        {/* require use of factory methods */
            AddToCache(this);
        }
        public void Dispose()
        {
            RemoveFromDictionaries();
        }
        private void RemoveFromDictionaries()
        {
            RemoveFromCache(this);
            if (_CacheByPrimaryKey.ContainsKey(AID.ToString()))
            {
                List<Assignment> listAssignment = _CacheByPrimaryKey[AID.ToString()]; // Get the list of items
                while (listAssignment.Contains(this)) listAssignment.Remove(this); // Remove the item from the list
                if (listAssignment.Count == 0) //If there are no items left in the list
                    _CacheByPrimaryKey.Remove(AID.ToString()); // remove the list
            }
        }
        public static Assignment New()
        {
            if (!CanAddObject())
                throw new System.Security.SecurityException("User not authorized to add a Assignment");
            try
            {
                return DataPortal.Create<Assignment>();
            }
            catch (Exception ex)
            {
                throw new DbCslaException("Error on Assignment.New", ex);
            }
        }
        public static Assignment New(Group myGroup, Role myRole, Folder myFolder)
        {
            Assignment tmp = Assignment.New();
            tmp.MyGroup = myGroup;
            tmp.MyRole = myRole;
            tmp.MyFolder = myFolder;
            return tmp;
        }
        public static Assignment New(Group myGroup, Role myRole, Folder myFolder, string startDate, string endDate, DateTime dts, string usrID)
        {
            Assignment tmp = Assignment.New();
            tmp.MyGroup = myGroup;
            tmp.MyRole = myRole;
            tmp.MyFolder = myFolder;
            tmp.StartDate = startDate;
            tmp.EndDate = endDate;
            tmp.DTS = dts;
            tmp.UsrID = usrID;
            return tmp;
        }
        public static Assignment MakeAssignment(Group myGroup, Role myRole, Folder myFolder, string startDate, string endDate, DateTime dts, string usrID)
        {
            Assignment tmp = Assignment.New(myGroup, myRole, myFolder, startDate, endDate, dts, usrID);
            if (tmp.IsSavable)
            {
                Assignment 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 Assignment New(Group myGroup, Role myRole, Folder myFolder, string endDate)
        {
            Assignment tmp = Assignment.New();
            tmp.MyGroup = myGroup;
            tmp.MyRole = myRole;
            tmp.MyFolder = myFolder;
            tmp.EndDate = endDate;
            return tmp;
        }
        public static Assignment MakeAssignment(Group myGroup, Role myRole, Folder myFolder, string endDate)
        {
            Assignment tmp = Assignment.New(myGroup, myRole, myFolder, endDate);
            if (tmp.IsSavable)
            {
                Assignment 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 Assignment Get(int aid)
        {
            if (!CanGetObject())
                throw new System.Security.SecurityException("User not authorized to view a Assignment");
            try
            {
                Assignment tmp = GetCachedByPrimaryKey(aid);
                if (tmp == null)
                {
                    tmp = DataPortal.Fetch<Assignment>(new PKCriteria(aid));
                    AddToCache(tmp);
                }
                if (tmp.ErrorMessage == "No Record Found")
                {
                    tmp.Dispose(); // Clean-up Assignment
                    tmp = null;
                }
                return tmp;
            }
            catch (Exception ex)
            {
                throw new DbCslaException("Error on Assignment.Get", ex);
            }
        }
        public static Assignment Get(SafeDataReader dr)
        {
            if (dr.Read()) return new Assignment(dr);
            return null;
        }
        internal Assignment(SafeDataReader dr)
        {
            ReadData(dr);
        }
        public static void Delete(int aid)
        {
            if (!CanDeleteObject())
                throw new System.Security.SecurityException("User not authorized to remove a Assignment");
            try
            {
                DataPortal.Delete(new PKCriteria(aid));
            }
            catch (Exception ex)
            {
                throw new DbCslaException("Error on Assignment.Delete", ex);
            }
        }
        public override Assignment Save()
        {
            if (IsDeleted && !CanDeleteObject())
                throw new System.Security.SecurityException("User not authorized to remove a Assignment");
            else if (IsNew && !CanAddObject())
                throw new System.Security.SecurityException("User not authorized to add a Assignment");
            else if (!CanEditObject())
                throw new System.Security.SecurityException("User not authorized to update a Assignment");
            try
            {
                BuildRefreshList();
                Assignment assignment = base.Save();
                RemoveFromDictionaries(); // if save is successful remove the previous Folder from the cache
                AddToCache(assignment);//Refresh the item in AllList
                ProcessRefreshList();
                return assignment;
            }
            catch (Exception ex)
            {
                throw new DbCslaException("Error on CSLA Save", ex);
            }
        }
        #endregion
        #region Data Access Portal
        [Serializable()]
        protected class PKCriteria
        {
            private int _AID;
            public int AID
            { get { return _AID; } }
            public PKCriteria(int aid)
            {
                _AID = aid;
            }
        }
        // TODO: If Create needs to access DB - It should not be marked RunLocal
        [RunLocal()]
        private new void DataPortal_Create()
        {
            _AID = NextAID;
            // Database Defaults
            _StartDate = _AssignmentExtension.DefaultStartDate;
            _DTS = _AssignmentExtension.DefaultDTS;
            _UsrID = _AssignmentExtension.DefaultUsrID;
            // TODO: Add any defaults that are necessary
            ValidationRules.CheckRules();
        }
        private void ReadData(SafeDataReader dr)
        {
            if (_MyLog.IsDebugEnabled) _MyLog.DebugFormat("[{0}] Assignment.ReadData", GetHashCode());
            try
            {
                _AID = dr.GetInt32("AID");
                _GID = dr.GetInt32("GID");
                _RID = dr.GetInt32("RID");
                _FolderID = dr.GetInt32("FolderID");
                _StartDate = dr.GetSmartDate("StartDate").Text;
                _EndDate = dr.GetSmartDate("EndDate").Text;
                _DTS = dr.GetDateTime("DTS");
                _UsrID = dr.GetString("UsrID");
                dr.GetBytes("LastChanged", 0, _LastChanged, 0, 8);
                MarkOld();
            }
            catch (Exception ex)
            {
                if (_MyLog.IsErrorEnabled) _MyLog.Error("Assignment.ReadData", ex);
                _ErrorMessage = ex.Message;
                throw new DbCslaException("Assignment.ReadData", ex);
            }
        }
        private void DataPortal_Fetch(PKCriteria criteria)
        {
            if (_MyLog.IsDebugEnabled) _MyLog.DebugFormat("[{0}] Assignment.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 = "getAssignment";
                        cm.Parameters.AddWithValue("@AID", criteria.AID);
                        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("Assignment.DataPortal_Fetch", ex);
                _ErrorMessage = ex.Message;
                throw new DbCslaException("Assignment.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("Assignment.DataPortal_Insert", ex);
                _ErrorMessage = ex.Message;
                throw new DbCslaException("Assignment.DataPortal_Insert", ex);
            }
            finally
            {
                if (_MyLog.IsDebugEnabled) _MyLog.DebugFormat("[{0}] Assignment.DataPortal_Insert", GetHashCode());
            }
        }
        [Transactional(TransactionalTypes.TransactionScope)]
        internal void SQLInsert()
        {
            if (!this.IsDirty) return;
            try
            {
                if (_MyFolder != null) _MyFolder.Update();
                if (_MyGroup != null) _MyGroup.Update();
                if (_MyRole != null) _MyRole.Update();
                SqlConnection cn = (SqlConnection)ApplicationContext.LocalContext["cn"];
                using (SqlCommand cm = cn.CreateCommand())
                {
                    cm.CommandType = CommandType.StoredProcedure;
                    cm.CommandText = "addAssignment";
                    // Input All Fields - Except Calculated Columns
                    cm.Parameters.AddWithValue("@GID", GID);
                    cm.Parameters.AddWithValue("@RID", RID);
                    cm.Parameters.AddWithValue("@FolderID", FolderID);
                    cm.Parameters.AddWithValue("@StartDate", new SmartDate(_StartDate).DBValue);
                    cm.Parameters.AddWithValue("@EndDate", new SmartDate(_EndDate).DBValue);
                    if (_DTS.Year >= 1753 && _DTS.Year <= 9999) cm.Parameters.AddWithValue("@DTS", _DTS);
                    cm.Parameters.AddWithValue("@UsrID", _UsrID);
                    // Output Calculated Columns
                    SqlParameter param_AID = new SqlParameter("@newAID", SqlDbType.Int);
                    param_AID.Direction = ParameterDirection.Output;
                    cm.Parameters.Add(param_AID);
                    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
                    _AID = (int)cm.Parameters["@newAID"].Value;
                    _LastChanged = (byte[])cm.Parameters["@newLastChanged"].Value;
                }
                MarkOld();
                // update child objects
                if (_MyLog.IsDebugEnabled) _MyLog.DebugFormat("[{0}] Assignment.SQLInsert", GetHashCode());
            }
            catch (Exception ex)
            {
                if (_MyLog.IsErrorEnabled) _MyLog.Error("Assignment.SQLInsert", ex);
                _ErrorMessage = ex.Message;
                throw new DbCslaException("Assignment.SQLInsert", ex);
            }
        }
        [Transactional(TransactionalTypes.TransactionScope)]
        public static byte[] Add(SqlConnection cn, ref int aid, Group myGroup, Role myRole, Folder myFolder, SmartDate startDate, SmartDate endDate, DateTime dts, string usrID)
        {
            if (_MyLog.IsDebugEnabled) _MyLog.DebugFormat("[{0}] Assignment.Add", 0);
            try
            {
                using (SqlCommand cm = cn.CreateCommand())
                {
                    cm.CommandType = CommandType.StoredProcedure;
                    cm.CommandText = "addAssignment";
                    // Input All Fields - Except Calculated Columns
                    cm.Parameters.AddWithValue("@GID", myGroup.GID);
                    cm.Parameters.AddWithValue("@RID", myRole.RID);
                    cm.Parameters.AddWithValue("@FolderID", myFolder.FolderID);
                    cm.Parameters.AddWithValue("@StartDate", startDate.DBValue);
                    cm.Parameters.AddWithValue("@EndDate", endDate.DBValue);
                    if (dts.Year >= 1753 && dts.Year <= 9999) cm.Parameters.AddWithValue("@DTS", dts);
                    cm.Parameters.AddWithValue("@UsrID", usrID);
                    // Output Calculated Columns
                    SqlParameter param_AID = new SqlParameter("@newAID", SqlDbType.Int);
                    param_AID.Direction = ParameterDirection.Output;
                    cm.Parameters.Add(param_AID);
                    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
                    aid = (int)cm.Parameters["@newAID"].Value;
                    return (byte[])cm.Parameters["@newLastChanged"].Value;
                }
            }
            catch (Exception ex)
            {
                if (_MyLog.IsErrorEnabled) _MyLog.Error("Assignment.Add", ex);
                throw new DbCslaException("Assignment.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}] Assignment.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("Assignment.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}] Assignment.SQLUpdate", GetHashCode());
            try
            {
                if (_MyFolder != null) _MyFolder.Update();
                if (_MyGroup != null) _MyGroup.Update();
                if (_MyRole != null) _MyRole.Update();
                SqlConnection cn = (SqlConnection)ApplicationContext.LocalContext["cn"];
                if (base.IsDirty)
                {
                    using (SqlCommand cm = cn.CreateCommand())
                    {
                        cm.CommandType = CommandType.StoredProcedure;
                        cm.CommandText = "updateAssignment";
                        // All Fields including Calculated Fields
                        cm.Parameters.AddWithValue("@AID", _AID);
                        cm.Parameters.AddWithValue("@GID", GID);
                        cm.Parameters.AddWithValue("@RID", RID);
                        cm.Parameters.AddWithValue("@FolderID", FolderID);
                        cm.Parameters.AddWithValue("@StartDate", new SmartDate(_StartDate).DBValue);
                        cm.Parameters.AddWithValue("@EndDate", new SmartDate(_EndDate).DBValue);
                        if (_DTS.Year >= 1753 && _DTS.Year <= 9999) cm.Parameters.AddWithValue("@DTS", _DTS);
                        cm.Parameters.AddWithValue("@UsrID", _UsrID);
                        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("Assignment.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 = Assignment.Add(cn, ref _AID, _MyGroup, _MyRole, _MyFolder, new SmartDate(_StartDate), new SmartDate(_EndDate), _DTS, _UsrID);
                else
                    _LastChanged = Assignment.Update(cn, ref _AID, _MyGroup, _MyRole, _MyFolder, new SmartDate(_StartDate), new SmartDate(_EndDate), _DTS, _UsrID, ref _LastChanged);
                MarkOld();
            }
        }
        [Transactional(TransactionalTypes.TransactionScope)]
        public static byte[] Update(SqlConnection cn, ref int aid, Group myGroup, Role myRole, Folder myFolder, SmartDate startDate, SmartDate endDate, DateTime dts, string usrID, ref byte[] lastChanged)
        {
            if (_MyLog.IsDebugEnabled) _MyLog.DebugFormat("[{0}] Assignment.Update", 0);
            try
            {
                using (SqlCommand cm = cn.CreateCommand())
                {
                    cm.CommandType = CommandType.StoredProcedure;
                    cm.CommandText = "updateAssignment";
                    // Input All Fields - Except Calculated Columns
                    cm.Parameters.AddWithValue("@AID", aid);
                    cm.Parameters.AddWithValue("@GID", myGroup.GID);
                    cm.Parameters.AddWithValue("@RID", myRole.RID);
                    cm.Parameters.AddWithValue("@FolderID", myFolder.FolderID);
                    cm.Parameters.AddWithValue("@StartDate", startDate.DBValue);
                    cm.Parameters.AddWithValue("@EndDate", endDate.DBValue);
                    if (dts.Year >= 1753 && dts.Year <= 9999) cm.Parameters.AddWithValue("@DTS", dts);
                    cm.Parameters.AddWithValue("@UsrID", usrID);
                    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("Assignment.Update", ex);
                throw new DbCslaException("Assignment.Update", ex);
            }
        }
        [Transactional(TransactionalTypes.TransactionScope)]
        protected override void DataPortal_DeleteSelf()
        {
            DataPortal_Delete(new PKCriteria(_AID));
        }
        [Transactional(TransactionalTypes.TransactionScope)]
        private void DataPortal_Delete(PKCriteria criteria)
        {
            if (_MyLog.IsDebugEnabled) _MyLog.DebugFormat("[{0}] Assignment.DataPortal_Delete", GetHashCode());
            try
            {
                using (SqlConnection cn = Database.VEPROMS_SqlConnection)
                {
                    using (SqlCommand cm = cn.CreateCommand())
                    {
                        cm.CommandType = CommandType.StoredProcedure;
                        cm.CommandText = "deleteAssignment";
                        cm.Parameters.AddWithValue("@AID", criteria.AID);
                        cm.ExecuteNonQuery();
                    }
                }
            }
            catch (Exception ex)
            {
                if (_MyLog.IsErrorEnabled) _MyLog.Error("Assignment.DataPortal_Delete", ex);
                _ErrorMessage = ex.Message;
                throw new DbCslaException("Assignment.DataPortal_Delete", ex);
            }
        }
        [Transactional(TransactionalTypes.TransactionScope)]
        public static void Remove(SqlConnection cn, int aid)
        {
            if (_MyLog.IsDebugEnabled) _MyLog.DebugFormat("[{0}] Assignment.Remove", 0);
            try
            {
                using (SqlCommand cm = cn.CreateCommand())
                {
                    cm.CommandType = CommandType.StoredProcedure;
                    cm.CommandText = "deleteAssignment";
                    // Input PK Fields
                    cm.Parameters.AddWithValue("@AID", aid);
                    // TODO: Define any additional output parameters
                    cm.ExecuteNonQuery();
                }
            }
            catch (Exception ex)
            {
                if (_MyLog.IsErrorEnabled) _MyLog.Error("Assignment.Remove", ex);
                throw new DbCslaException("Assignment.Remove", ex);
            }
        }
        #endregion
        #region Exists
        public static bool Exists(int aid)
        {
            ExistsCommand result;
            try
            {
                result = DataPortal.Execute<ExistsCommand>(new ExistsCommand(aid));
                return result.Exists;
            }
            catch (Exception ex)
            {
                throw new DbCslaException("Error on Assignment.Exists", ex);
            }
        }
        [Serializable()]
        private class ExistsCommand : CommandBase
        {
            private int _AID;
            private bool _exists;
            public bool Exists
            {
                get { return _exists; }
            }
            public ExistsCommand(int aid)
            {
                _AID = aid;
            }
            protected override void DataPortal_Execute()
            {
                if (_MyLog.IsDebugEnabled) _MyLog.DebugFormat("[{0}] Assignment.DataPortal_Execute", GetHashCode());
                try
                {
                    using (SqlConnection cn = Database.VEPROMS_SqlConnection)
                    {
                        cn.Open();
                        using (SqlCommand cm = cn.CreateCommand())
                        {
                            cm.CommandType = CommandType.StoredProcedure;
                            cm.CommandText = "existsAssignment";
                            cm.Parameters.AddWithValue("@AID", _AID);
                            int count = (int)cm.ExecuteScalar();
                            _exists = (count > 0);
                        }
                    }
                }
                catch (Exception ex)
                {
                    if (_MyLog.IsErrorEnabled) _MyLog.Error("Assignment.DataPortal_Execute", ex);
                    throw new DbCslaException("Assignment.DataPortal_Execute", ex);
                }
            }
        }
        #endregion
        // Standard Default Code
        #region extension
        AssignmentExtension _AssignmentExtension = new AssignmentExtension();
        [Serializable()]
        partial class AssignmentExtension : extensionBase
        {
        }
        [Serializable()]
        class extensionBase
        {
            // Default Values
            public virtual string DefaultStartDate
            {
                get { return DateTime.Now.ToShortDateString(); }
            }
            public virtual DateTime DefaultDTS
            {
                get { return DateTime.Now; }
            }
            public virtual string DefaultUsrID
            {
                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 AssignmentConverter : ExpandableObjectConverter
    {
        public override object ConvertTo(ITypeDescriptorContext context, System.Globalization.CultureInfo culture, object value, Type destType)
        {
            if (destType == typeof(string) && value is Assignment)
            {
                // Return the ToString value
                return ((Assignment)value).ToString();
            }
            return base.ConvertTo(context, culture, value, destType);
        }
    }
    #endregion
} // Namespace


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

//namespace VEPROMS.CSLA.Library
//{
//  public partial class Assignment
//  {
//    partial class AssignmentExtension : extensionBase
//    {
//      // TODO: Override automatic defaults
//      public virtual SmartDate DefaultStartDate
//      {
//        get { return DateTime.Now.ToShortDateString(); }
//      }
//      public virtual DateTime DefaultDTS
//      {
//        get { return DateTime.Now; }
//      }
//      public virtual string DefaultUsrID
//      {
//        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 */);
//      }
//    }
//  }
//}