// ========================================================================
// 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>
    ///	Group Generated by MyGeneration using the CSLA Object Mapping template
    /// </summary>
    [Serializable()]
    [TypeConverter(typeof(GroupConverter))]
    public partial class Group : BusinessBase<Group>, IDisposable, IVEHasBrokenRules
    {
        #region Log4Net
        private static readonly log4net.ILog _MyLog = log4net.LogManager.GetLogger(System.Reflection.MethodBase.GetCurrentMethod().DeclaringType);
        #endregion
        #region Refresh
        private List<Group> _RefreshGroups = new List<Group>();
        private List<GroupAssignment> _RefreshGroupAssignments = new List<GroupAssignment>();
        private List<GroupMembership> _RefreshGroupMemberships = new List<GroupMembership>();
        private void AddToRefreshList(List<Group> refreshGroups, List<GroupAssignment> refreshGroupAssignments, List<GroupMembership> refreshGroupMemberships)
        {
            if (IsDirty)
                refreshGroups.Add(this);
            if (_GroupAssignments != null && _GroupAssignments.IsDirty)
            {
                foreach (GroupAssignment tmp in _GroupAssignments)
                {
                    if (tmp.IsDirty) refreshGroupAssignments.Add(tmp);
                }
            }
            if (_GroupMemberships != null && _GroupMemberships.IsDirty)
            {
                foreach (GroupMembership tmp in _GroupMemberships)
                {
                    if (tmp.IsDirty) refreshGroupMemberships.Add(tmp);
                }
            }
        }
        private void ClearRefreshList()
        {
            _RefreshGroups = new List<Group>();
            _RefreshGroupAssignments = new List<GroupAssignment>();
            _RefreshGroupMemberships = new List<GroupMembership>();
        }
        private void BuildRefreshList()
        {
            ClearRefreshList();
            AddToRefreshList(_RefreshGroups, _RefreshGroupAssignments, _RefreshGroupMemberships);
        }
        private void ProcessRefreshList()
        {
            foreach (Group tmp in _RefreshGroups)
            {
                GroupInfo.Refresh(tmp);
            }
            foreach (GroupAssignment tmp in _RefreshGroupAssignments)
            {
                AssignmentInfo.Refresh(tmp);
            }
            foreach (GroupMembership tmp in _RefreshGroupMemberships)
            {
                MembershipInfo.Refresh(tmp);
            }
            ClearRefreshList();
        }
        #endregion
        #region Collection
        private static List<Group> _CacheList = new List<Group>();
        protected static void AddToCache(Group group)
        {
            if (!_CacheList.Contains(group)) _CacheList.Add(group); // In AddToCache
        }
        protected static void RemoveFromCache(Group group)
        {
            while (_CacheList.Contains(group)) _CacheList.Remove(group); // In RemoveFromCache
        }
        private static Dictionary<string, List<Group>> _CacheByPrimaryKey = new Dictionary<string, List<Group>>();
        private static Dictionary<string, List<Group>> _CacheByGroupName = new Dictionary<string, List<Group>>();
        private static void ConvertListToDictionary()
        {
            while (_CacheList.Count > 0) // Move Group(s) from temporary _CacheList to _CacheByPrimaryKey
            {
                Group tmp = _CacheList[0]; // Get the first Group
                string pKey = tmp.GID.ToString();
                if (!_CacheByPrimaryKey.ContainsKey(pKey))
                {
                    _CacheByPrimaryKey[pKey] = new List<Group>(); // Add new list for PrimaryKey
                    _CacheByGroupName[tmp.GroupName.ToString()] = new List<Group>(); // Add new list for GroupName
                }
                _CacheByPrimaryKey[pKey].Add(tmp); // Add to Primary Key list
                _CacheByGroupName[tmp.GroupName.ToString()].Add(tmp); // Unique Index
                _CacheList.RemoveAt(0); // Remove the first Group
            }
        }
        protected static Group GetCachedByPrimaryKey(int gid)
        {
            ConvertListToDictionary();
            string key = gid.ToString();
            if (_CacheByPrimaryKey.ContainsKey(key)) return _CacheByPrimaryKey[key][0];
            return null;
        }
        protected static Group GetCachedByGroupName(string groupName)
        {
            ConvertListToDictionary();
            string key = groupName.ToString();
            if (_CacheByGroupName.ContainsKey(key)) return _CacheByGroupName[key][0];
            return null;
        }
        #endregion
        #region Business Methods
        private string _ErrorMessage = string.Empty;
        public string ErrorMessage
        {
            get { return _ErrorMessage; }
        }
        private static int _nextGID = -1;
        public static int NextGID
        {
            get { return _nextGID--; }
        }
        private int _GID;
        [System.ComponentModel.DataObjectField(true, true)]
        public int GID
        {
            [System.Runtime.CompilerServices.MethodImpl(System.Runtime.CompilerServices.MethodImplOptions.NoInlining)]
            get
            {
                return _GID;
            }
        }
        private string _GroupName = string.Empty;
        public string GroupName
        {
            [System.Runtime.CompilerServices.MethodImpl(System.Runtime.CompilerServices.MethodImplOptions.NoInlining)]
            get
            {
                return _GroupName;
            }
            [System.Runtime.CompilerServices.MethodImpl(System.Runtime.CompilerServices.MethodImplOptions.NoInlining)]
            set
            {
                if (value == null) value = string.Empty;
                if (_GroupName != value)
                {
                    _GroupName = value;
                    PropertyHasChanged();
                }
            }
        }
        private int? _GroupType;
        public int? GroupType
        {
            [System.Runtime.CompilerServices.MethodImpl(System.Runtime.CompilerServices.MethodImplOptions.NoInlining)]
            get
            {
                return _GroupType;
            }
            [System.Runtime.CompilerServices.MethodImpl(System.Runtime.CompilerServices.MethodImplOptions.NoInlining)]
            set
            {
                if (_GroupType != value)
                {
                    _GroupType = value;
                    PropertyHasChanged();
                }
            }
        }
        private string _Config = string.Empty;
        public string Config
        {
            [System.Runtime.CompilerServices.MethodImpl(System.Runtime.CompilerServices.MethodImplOptions.NoInlining)]
            get
            {
                return _Config;
            }
            [System.Runtime.CompilerServices.MethodImpl(System.Runtime.CompilerServices.MethodImplOptions.NoInlining)]
            set
            {
                if (value == null) value = string.Empty;
                if (_Config != value)
                {
                    _Config = value;
                    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
        private int _GroupAssignmentCount = 0;
        /// <summary>
        /// Count of GroupAssignments for this Group
        /// </summary>
        public int GroupAssignmentCount
        {
            [System.Runtime.CompilerServices.MethodImpl(System.Runtime.CompilerServices.MethodImplOptions.NoInlining)]
            get
            {
                return _GroupAssignmentCount;
            }
        }
        private GroupAssignments _GroupAssignments = null;
        /// <summary>
        /// Related Field
        /// </summary>
        [TypeConverter(typeof(GroupAssignmentsConverter))]
        public GroupAssignments GroupAssignments
        {
            [System.Runtime.CompilerServices.MethodImpl(System.Runtime.CompilerServices.MethodImplOptions.NoInlining)]
            get
            {
                if (_GroupAssignmentCount < 0 || (_GroupAssignmentCount > 0 && _GroupAssignments == null))
                    _GroupAssignments = GroupAssignments.GetByGID(GID);
                if (_GroupAssignmentCount < 0)
                    _GroupAssignmentCount = _GroupAssignments == null ? 0 : _GroupAssignments.Count;
                if (_GroupAssignments == null)
                    _GroupAssignments = GroupAssignments.New();
                return _GroupAssignments;
            }
        }
        public void Reset_GroupAssignments()
        {
            _GroupAssignmentCount = -1;
        }
        private int _GroupMembershipCount = 0;
        /// <summary>
        /// Count of GroupMemberships for this Group
        /// </summary>
        public int GroupMembershipCount
        {
            [System.Runtime.CompilerServices.MethodImpl(System.Runtime.CompilerServices.MethodImplOptions.NoInlining)]
            get
            {
                return _GroupMembershipCount;
            }
        }
        private GroupMemberships _GroupMemberships = null;
        /// <summary>
        /// Related Field
        /// </summary>
        [TypeConverter(typeof(GroupMembershipsConverter))]
        public GroupMemberships GroupMemberships
        {
            [System.Runtime.CompilerServices.MethodImpl(System.Runtime.CompilerServices.MethodImplOptions.NoInlining)]
            get
            {
                if (_GroupMembershipCount < 0 || (_GroupMembershipCount > 0 && _GroupMemberships == null))
                    _GroupMemberships = GroupMemberships.GetByGID(GID);
                if (_GroupMembershipCount < 0)
                    _GroupMembershipCount = _GroupMemberships == null ? 0 : _GroupMemberships.Count;
                if (_GroupMemberships == null)
                    _GroupMemberships = GroupMemberships.New();
                return _GroupMemberships;
            }
        }
        public void Reset_GroupMemberships()
        {
            _GroupMembershipCount = -1;
        }
        public override bool IsDirty
        {
            get
            {
                if (base.IsDirty)
                    return true;
                return IsDirtyList(new List<object>());
            }
        }
        public bool IsDirtyList(List<object> list)
        {
            if (base.IsDirty || list.Contains(this))
                return base.IsDirty;
            list.Add(this);
            return base.IsDirty || (_GroupAssignments == null ? false : _GroupAssignments.IsDirtyList(list)) || (_GroupMemberships == null ? false : _GroupMemberships.IsDirtyList(list));
        }
        public override bool IsValid
        {
            get { return IsValidList(new List<object>()); }
        }
        public bool IsValidList(List<object> list)
        {
            if (list.Contains(this))
                return (IsNew && !IsDirty) ? true : base.IsValid;
            list.Add(this);
            return ((IsNew && !IsDirty) ? true : base.IsValid) && (_GroupAssignments == null ? true : _GroupAssignments.IsValidList(list)) && (_GroupMemberships == null ? true : _GroupMemberships.IsValidList(list));
        }
        // CSLATODO: Replace base Group.ToString function as necessary
        /// <summary>
        /// Overrides Base ToString
        /// </summary>
        /// <returns>A string representation of current Group</returns>
        //public override string ToString()
        //{
        //  return base.ToString();
        //}
        // CSLATODO: Check Group.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 Group</returns>
        protected override object GetIdValue()
        {
            return MyGroupUnique; // Absolutely Unique ID
        }
        #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 (_GroupAssignments != null && (hasBrokenRules = _GroupAssignments.HasBrokenRules) != null) return hasBrokenRules;
                    if (_GroupMemberships != null && (hasBrokenRules = _GroupMemberships.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(
                Csla.Validation.CommonRules.StringRequired, "GroupName");
            ValidationRules.AddRule(
                Csla.Validation.CommonRules.StringMaxLength,
                new Csla.Validation.CommonRules.MaxLengthRuleArgs("GroupName", 100));
            ValidationRules.AddRule(
                Csla.Validation.CommonRules.StringMaxLength,
                new Csla.Validation.CommonRules.MaxLengthRuleArgs("Config", 1073741823));
            ValidationRules.AddRule(
                Csla.Validation.CommonRules.StringRequired, "UsrID");
            ValidationRules.AddRule(
                Csla.Validation.CommonRules.StringMaxLength,
                new Csla.Validation.CommonRules.MaxLengthRuleArgs("UsrID", 100));
            //ValidationRules.AddDependantProperty("x", "y");
            _GroupExtension.AddValidationRules(ValidationRules);
            // CSLATODO:  Add other validation rules
        }
        protected override void AddInstanceBusinessRules()
        {
            _GroupExtension.AddInstanceValidationRules(ValidationRules);
            // CSLATODO:  Add other validation rules
        }
        // 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()
        {
            //CSLATODO: Who can read/write which fields
            //AuthorizationRules.AllowRead(GID, "<Role(s)>");
            //AuthorizationRules.AllowRead(GroupName, "<Role(s)>");
            //AuthorizationRules.AllowRead(GroupType, "<Role(s)>");
            //AuthorizationRules.AllowRead(Config, "<Role(s)>");
            //AuthorizationRules.AllowRead(DTS, "<Role(s)>");
            //AuthorizationRules.AllowRead(UsrID, "<Role(s)>");
            //AuthorizationRules.AllowWrite(GroupName, "<Role(s)>");
            //AuthorizationRules.AllowWrite(GroupType, "<Role(s)>");
            //AuthorizationRules.AllowWrite(Config, "<Role(s)>");
            //AuthorizationRules.AllowWrite(DTS, "<Role(s)>");
            //AuthorizationRules.AllowWrite(UsrID, "<Role(s)>");
            _GroupExtension.AddAuthorizationRules(AuthorizationRules);
        }
        protected override void AddInstanceAuthorizationRules()
        {
            //CSLATODO: Who can read/write which fields
            _GroupExtension.AddInstanceAuthorizationRules(AuthorizationRules);
        }
        public static bool CanAddObject()
        {
            // CSLATODO: Can Add Authorization
            //return Csla.ApplicationContext.User.IsInRole("ProjectManager");
            return true;
        }
        public static bool CanGetObject()
        {
            // CSLATODO: CanGet Authorization
            return true;
        }
        public static bool CanDeleteObject()
        {
            // CSLATODO: 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;
        }
        /// <summary>
        /// determines if related records (Foreign Keys) will keep this Item from being deleted
        /// </summary>
        public bool CanDelete
        {
            get
            {
                // Check to make sure that there are not any related records
                int usedByCount = 0;
                usedByCount += _GroupAssignmentCount;
                usedByCount += _GroupMembershipCount;
                return (usedByCount == 0);
            }
        }
        public static bool CanEditObject()
        {
            // CSLATODO: CanEdit Authorization
            //return Csla.ApplicationContext.User.IsInRole("ProjectManager");
            return true;
        }
        #endregion
        #region Factory Methods
        public int CurrentEditLevel
        { get { return EditLevel; } }
        private static int _GroupUnique = 0;
        protected static int GroupUnique
        { get { return ++_GroupUnique; } }
        private int _MyGroupUnique = GroupUnique;
        public int MyGroupUnique // Absolutely Unique ID - Editable
        { get { return _MyGroupUnique; } }
        protected Group()
        {/* require use of factory methods */
            AddToCache(this);
        }
        private bool _Disposed = false;
        private static int _CountCreated = 0;
        private static int _CountDisposed = 0;
        private static int _CountFinalized = 0;
        private static int IncrementCountCreated
        { get { return ++_CountCreated; } }
        private int _CountWhenCreated = IncrementCountCreated;
        public static int CountCreated
        { get { return _CountCreated; } }
        public static int CountNotDisposed
        { get { return _CountCreated - _CountDisposed; } }
        public static int CountNotFinalized
        { get { return _CountCreated - _CountFinalized; } }
        ~Group()
        {
            _CountFinalized++;
        }
        public void Dispose()
        {
            if (_Disposed) return;
            _CountDisposed++;
            _Disposed = true;
            RemoveFromDictionaries();
        }
        private void RemoveFromDictionaries()
        {
            RemoveFromCache(this);
            if (_CacheByPrimaryKey.ContainsKey(GID.ToString()))
            {
                List<Group> listGroup = _CacheByPrimaryKey[GID.ToString()]; // Get the list of items
                while (listGroup.Contains(this)) listGroup.Remove(this); // Remove the item from the list
                if (listGroup.Count == 0) //If there are no items left in the list
                    _CacheByPrimaryKey.Remove(GID.ToString()); // remove the list
            }
            string myKey;
            myKey = null;
            foreach (string key in _CacheByGroupName.Keys)
                if (_CacheByGroupName[key].Contains(this))
                    myKey = key;
            if (myKey != null)
            {
                List<Group> listGroup = _CacheByGroupName[myKey]; // Get the list of items
                listGroup.Remove(this); // Remove the item from the list
                if (listGroup.Count == 0) //If there are no items left in the list
                    _CacheByGroupName.Remove(myKey); // remove the list
            }
        }
        public static Group New()
        {
            if (!CanAddObject())
                throw new System.Security.SecurityException("User not authorized to add a Group");
            try
            {
                return DataPortal.Create<Group>();
            }
            catch (Exception ex)
            {
                throw new DbCslaException("Error on Group.New", ex);
            }
        }
        public static Group New(string groupName)
        {
            Group tmp = Group.New();
            tmp.GroupName = groupName;
            return tmp;
        }
        public static Group New(string groupName, int? groupType, string config, DateTime dts, string usrID)
        {
            Group tmp = Group.New();
            tmp.GroupName = groupName;
            tmp.GroupType = groupType;
            tmp.Config = config;
            tmp.DTS = dts;
            tmp.UsrID = usrID;
            return tmp;
        }
        public static Group MakeGroup(string groupName, int? groupType, string config, DateTime dts, string usrID)
        {
            Group tmp = Group.New(groupName, groupType, config, dts, usrID);
            if (tmp.IsSavable)
                tmp = tmp.Save();
            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 Group New(string groupName, int? groupType, string config)
        {
            Group tmp = Group.New();
            tmp.GroupName = groupName;
            tmp.GroupType = groupType;
            tmp.Config = config;
            return tmp;
        }
        public static Group MakeGroup(string groupName, int? groupType, string config)
        {
            Group tmp = Group.New(groupName, groupType, config);
            if (tmp.IsSavable)
                tmp = tmp.Save();
            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 Group Get(int gid)
        {
            if (!CanGetObject())
                throw new System.Security.SecurityException("User not authorized to view a Group");
            try
            {
                Group tmp = GetCachedByPrimaryKey(gid);
                if (tmp == null)
                {
                    tmp = DataPortal.Fetch<Group>(new PKCriteria(gid));
                    AddToCache(tmp);
                }
                if (tmp.ErrorMessage == "No Record Found")
                {
                    tmp.Dispose(); // Clean-up Group
                    tmp = null;
                }
                return tmp;
            }
            catch (Exception ex)
            {
                throw new DbCslaException("Error on Group.Get", ex);
            }
        }
        public static Group GetByGroupName(string groupName)
        {
            if (!CanGetObject())
                throw new System.Security.SecurityException("User not authorized to view a Group");
            try
            {
                Group tmp = GetCachedByGroupName(groupName);
                if (tmp == null)
                {
                    tmp = DataPortal.Fetch<Group>(new GroupNameCriteria(groupName));
                    AddToCache(tmp);
                }
                if (tmp.ErrorMessage == "No Record Found")
                {
                    tmp.Dispose(); // Clean-up Group
                    tmp = null;
                }
                return tmp;
            }
            catch (Exception ex)
            {
                throw new DbCslaException("Error on Group.GetByGroupName", ex);
            }
        }
        public static Group Get(SafeDataReader dr)
        {
            if (dr.Read()) return new Group(dr);
            return null;
        }
        internal Group(SafeDataReader dr)
        {
            ReadData(dr);
        }
        public static void Delete(int gid)
        {
            if (!CanDeleteObject())
                throw new System.Security.SecurityException("User not authorized to remove a Group");
            try
            {
                DataPortal.Delete(new PKCriteria(gid));
            }
            catch (Exception ex)
            {
                throw new DbCslaException("Error on Group.Delete", ex);
            }
        }
        public override Group Save()
        {
            if (IsDeleted && !CanDeleteObject())
                throw new System.Security.SecurityException("User not authorized to remove a Group");
            else if (IsNew && !CanAddObject())
                throw new System.Security.SecurityException("User not authorized to add a Group");
            else if (!CanEditObject())
                throw new System.Security.SecurityException("User not authorized to update a Group");
            try
            {
                BuildRefreshList();
                Group group = base.Save();
                RemoveFromDictionaries(); // if save is successful remove the previous Folder from the cache
                AddToCache(group);//Refresh the item in AllList
                ProcessRefreshList();
                return group;
            }
            catch (Exception ex)
            {
                throw new DbCslaException("Error on CSLA Save", ex);
            }
        }
        #endregion
        #region Data Access Portal
        [Serializable()]
        protected class PKCriteria
        {
            private int _GID;
            public int GID
            { get { return _GID; } }
            public PKCriteria(int gid)
            {
                _GID = gid;
            }
        }
        [Serializable()]
        private class GroupNameCriteria
        {
            private string _GroupName;
            public string GroupName
            { get { return _GroupName; } }
            public GroupNameCriteria(string groupName)
            {
                _GroupName = groupName;
            }
        }
        // CSLATODO: If Create needs to access DB - It should not be marked RunLocal
        [RunLocal()]
        private new void DataPortal_Create()
        {
            _GID = NextGID;
            // Database Defaults
            _DTS = _GroupExtension.DefaultDTS;
            _UsrID = _GroupExtension.DefaultUsrID;
            // CSLATODO: Add any defaults that are necessary
            ValidationRules.CheckRules();
        }
        private void ReadData(SafeDataReader dr)
        {
            if (_MyLog.IsDebugEnabled) _MyLog.DebugFormat("[{0}] Group.ReadData", GetHashCode());
            try
            {
                _GID = dr.GetInt32("GID");
                _GroupName = dr.GetString("GroupName");
                _GroupType = (int?)dr.GetValue("GroupType");
                _Config = dr.GetString("Config");
                _DTS = dr.GetDateTime("DTS");
                _UsrID = dr.GetString("UsrID");
                dr.GetBytes("LastChanged", 0, _LastChanged, 0, 8);
                _GroupAssignmentCount = dr.GetInt32("AssignmentCount");
                _GroupMembershipCount = dr.GetInt32("MembershipCount");
                MarkOld();
            }
            catch (Exception ex)
            {
                if (_MyLog.IsErrorEnabled) _MyLog.Error("Group.ReadData", ex);
                _ErrorMessage = ex.Message;
                throw new DbCslaException("Group.ReadData", ex);
            }
        }
        private void DataPortal_Fetch(PKCriteria criteria)
        {
            if (_MyLog.IsDebugEnabled) _MyLog.DebugFormat("[{0}] Group.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 = "getGroup";
                        cm.Parameters.AddWithValue("@GID", criteria.GID);
                        cm.CommandTimeout = Database.DefaultTimeout;
                        using (SafeDataReader dr = new SafeDataReader(cm.ExecuteReader()))
                        {
                            if (!dr.Read())
                            {
                                _ErrorMessage = "No Record Found";
                                return;
                            }
                            ReadData(dr);
                            // load child objects
                            dr.NextResult();
                            _GroupAssignments = GroupAssignments.Get(dr);
                            // load child objects
                            dr.NextResult();
                            _GroupMemberships = GroupMemberships.Get(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("Group.DataPortal_Fetch", ex);
                _ErrorMessage = ex.Message;
                throw new DbCslaException("Group.DataPortal_Fetch", ex);
            }
        }
        private void DataPortal_Fetch(GroupNameCriteria criteria)
        {
            if (_MyLog.IsDebugEnabled) _MyLog.DebugFormat("[{0}] Group.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 = "getGroupByGroupName";
                        cm.Parameters.AddWithValue("@GroupName", criteria.GroupName);
                        cm.CommandTimeout = Database.DefaultTimeout;
                        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("Group.DataPortal_Fetch", ex);
                _ErrorMessage = ex.Message;
                throw new DbCslaException("Group.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("Group.DataPortal_Insert", ex);
                _ErrorMessage = ex.Message;
                throw new DbCslaException("Group.DataPortal_Insert", ex);
            }
            finally
            {
                if (_MyLog.IsDebugEnabled) _MyLog.DebugFormat("[{0}] Group.DataPortal_Insert", GetHashCode());
            }
        }
        [Transactional(TransactionalTypes.TransactionScope)]
        internal void SQLInsert()
        {
            if (!this.IsDirty) return;
            try
            {
                SqlConnection cn = (SqlConnection)ApplicationContext.LocalContext["cn"];
                using (SqlCommand cm = cn.CreateCommand())
                {
                    cm.CommandType = CommandType.StoredProcedure;
                    cm.CommandTimeout = Database.SQLTimeout;
                    cm.CommandText = "addGroup";
                    // Input All Fields - Except Calculated Columns
                    cm.Parameters.AddWithValue("@GroupName", _GroupName);
                    cm.Parameters.AddWithValue("@GroupType", _GroupType);
                    cm.Parameters.AddWithValue("@Config", _Config);
                    if (_DTS.Year >= 1753 && _DTS.Year <= 9999) cm.Parameters.AddWithValue("@DTS", _DTS);
                    cm.Parameters.AddWithValue("@UsrID", _UsrID);
                    // Output Calculated Columns
                    SqlParameter param_GID = new SqlParameter("@newGID", SqlDbType.Int);
                    param_GID.Direction = ParameterDirection.Output;
                    cm.Parameters.Add(param_GID);
                    SqlParameter param_LastChanged = new SqlParameter("@newLastChanged", SqlDbType.Timestamp);
                    param_LastChanged.Direction = ParameterDirection.Output;
                    cm.Parameters.Add(param_LastChanged);
                    // CSLATODO: Define any additional output parameters
                    cm.ExecuteNonQuery();
                    // Save all values being returned from the Procedure
                    _GID = (int)cm.Parameters["@newGID"].Value;
                    _LastChanged = (byte[])cm.Parameters["@newLastChanged"].Value;
                }
                MarkOld();
                // update child objects
                if (_GroupAssignments != null) _GroupAssignments.Update(this);
                if (_GroupMemberships != null) _GroupMemberships.Update(this);
                if (_MyLog.IsDebugEnabled) _MyLog.DebugFormat("[{0}] Group.SQLInsert", GetHashCode());
            }
            catch (Exception ex)
            {
                if (_MyLog.IsErrorEnabled) _MyLog.Error("Group.SQLInsert", ex);
                _ErrorMessage = ex.Message;
                throw new DbCslaException("Group.SQLInsert", ex);
            }
        }
        [Transactional(TransactionalTypes.TransactionScope)]
        public static byte[] Add(SqlConnection cn, ref int gid, string groupName, int? groupType, string config, DateTime dts, string usrID)
        {
            if (_MyLog.IsDebugEnabled) _MyLog.DebugFormat("[{0}] Group.Add", 0);
            try
            {
                using (SqlCommand cm = cn.CreateCommand())
                {
                    cm.CommandType = CommandType.StoredProcedure;
                    cm.CommandTimeout = Database.SQLTimeout;
                    cm.CommandText = "addGroup";
                    // Input All Fields - Except Calculated Columns
                    cm.Parameters.AddWithValue("@GroupName", groupName);
                    cm.Parameters.AddWithValue("@GroupType", groupType);
                    cm.Parameters.AddWithValue("@Config", config);
                    if (dts.Year >= 1753 && dts.Year <= 9999) cm.Parameters.AddWithValue("@DTS", dts);
                    cm.Parameters.AddWithValue("@UsrID", usrID);
                    // Output Calculated Columns
                    SqlParameter param_GID = new SqlParameter("@newGID", SqlDbType.Int);
                    param_GID.Direction = ParameterDirection.Output;
                    cm.Parameters.Add(param_GID);
                    SqlParameter param_LastChanged = new SqlParameter("@newLastChanged", SqlDbType.Timestamp);
                    param_LastChanged.Direction = ParameterDirection.Output;
                    cm.Parameters.Add(param_LastChanged);
                    // CSLATODO: Define any additional output parameters
                    cm.ExecuteNonQuery();
                    // Save all values being returned from the Procedure
                    gid = (int)cm.Parameters["@newGID"].Value;
                    return (byte[])cm.Parameters["@newLastChanged"].Value;
                }
            }
            catch (Exception ex)
            {
                if (_MyLog.IsErrorEnabled) _MyLog.Error("Group.Add", ex);
                throw new DbCslaException("Group.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}] Group.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("Group.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}] Group.SQLUpdate", GetHashCode());
            try
            {
                SqlConnection cn = (SqlConnection)ApplicationContext.LocalContext["cn"];
                if (base.IsDirty)
                {
                    using (SqlCommand cm = cn.CreateCommand())
                    {
                        cm.CommandType = CommandType.StoredProcedure;
                        cm.CommandTimeout = Database.SQLTimeout;
                        cm.CommandText = "updateGroup";
                        // All Fields including Calculated Fields
                        cm.Parameters.AddWithValue("@GID", _GID);
                        cm.Parameters.AddWithValue("@GroupName", _GroupName);
                        cm.Parameters.AddWithValue("@GroupType", _GroupType);
                        cm.Parameters.AddWithValue("@Config", _Config);
                        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);
                        // CSLATODO: 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
                if (_GroupAssignments != null) _GroupAssignments.Update(this);
                if (_GroupMemberships != null) _GroupMemberships.Update(this);
            }
            catch (Exception ex)
            {
                if (_MyLog.IsErrorEnabled) _MyLog.Error("Group.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 = Group.Add(cn, ref _GID, _GroupName, _GroupType, _Config, _DTS, _UsrID);
                else
                    _LastChanged = Group.Update(cn, ref _GID, _GroupName, _GroupType, _Config, _DTS, _UsrID, ref _LastChanged);
                MarkOld();
            }
            if (_GroupAssignments != null) _GroupAssignments.Update(this);
            if (_GroupMemberships != null) _GroupMemberships.Update(this);
        }
        [Transactional(TransactionalTypes.TransactionScope)]
        public static byte[] Update(SqlConnection cn, ref int gid, string groupName, int? groupType, string config, DateTime dts, string usrID, ref byte[] lastChanged)
        {
            if (_MyLog.IsDebugEnabled) _MyLog.DebugFormat("[{0}] Group.Update", 0);
            try
            {
                using (SqlCommand cm = cn.CreateCommand())
                {
                    cm.CommandType = CommandType.StoredProcedure;
                    cm.CommandTimeout = Database.SQLTimeout;
                    cm.CommandText = "updateGroup";
                    // Input All Fields - Except Calculated Columns
                    cm.Parameters.AddWithValue("@GID", gid);
                    cm.Parameters.AddWithValue("@GroupName", groupName);
                    cm.Parameters.AddWithValue("@GroupType", groupType);
                    cm.Parameters.AddWithValue("@Config", config);
                    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);
                    // CSLATODO: 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("Group.Update", ex);
                throw new DbCslaException("Group.Update", ex);
            }
        }
        [Transactional(TransactionalTypes.TransactionScope)]
        protected override void DataPortal_DeleteSelf()
        {
            DataPortal_Delete(new PKCriteria(_GID));
        }
        [Transactional(TransactionalTypes.TransactionScope)]
        private void DataPortal_Delete(PKCriteria criteria)
        {
            if (_MyLog.IsDebugEnabled) _MyLog.DebugFormat("[{0}] Group.DataPortal_Delete", GetHashCode());
            try
            {
                using (SqlConnection cn = Database.VEPROMS_SqlConnection)
                {
                    using (SqlCommand cm = cn.CreateCommand())
                    {
                        cm.CommandType = CommandType.StoredProcedure;
                        cm.CommandTimeout = Database.SQLTimeout;
                        cm.CommandText = "deleteGroup";
                        cm.Parameters.AddWithValue("@GID", criteria.GID);
                        cm.ExecuteNonQuery();
                    }
                }
            }
            catch (Exception ex)
            {
                if (_MyLog.IsErrorEnabled) _MyLog.Error("Group.DataPortal_Delete", ex);
                _ErrorMessage = ex.Message;
                throw new DbCslaException("Group.DataPortal_Delete", ex);
            }
        }
        [Transactional(TransactionalTypes.TransactionScope)]
        public static void Remove(SqlConnection cn, int gid)
        {
            if (_MyLog.IsDebugEnabled) _MyLog.DebugFormat("[{0}] Group.Remove", 0);
            try
            {
                using (SqlCommand cm = cn.CreateCommand())
                {
                    cm.CommandType = CommandType.StoredProcedure;
                    cm.CommandTimeout = Database.SQLTimeout;
                    cm.CommandText = "deleteGroup";
                    // Input PK Fields
                    cm.Parameters.AddWithValue("@GID", gid);
                    // CSLATODO: Define any additional output parameters
                    cm.ExecuteNonQuery();
                }
            }
            catch (Exception ex)
            {
                if (_MyLog.IsErrorEnabled) _MyLog.Error("Group.Remove", ex);
                throw new DbCslaException("Group.Remove", ex);
            }
        }
        #endregion
        #region Exists
        public static bool Exists(int gid)
        {
            ExistsCommand result;
            try
            {
                result = DataPortal.Execute<ExistsCommand>(new ExistsCommand(gid));
                return result.Exists;
            }
            catch (Exception ex)
            {
                throw new DbCslaException("Error on Group.Exists", ex);
            }
        }
        [Serializable()]
        private class ExistsCommand : CommandBase
        {
            private int _GID;
            private bool _exists;
            public bool Exists
            {
                get { return _exists; }
            }
            public ExistsCommand(int gid)
            {
                _GID = gid;
            }
            protected override void DataPortal_Execute()
            {
                if (_MyLog.IsDebugEnabled) _MyLog.DebugFormat("[{0}] Group.DataPortal_Execute", GetHashCode());
                try
                {
                    using (SqlConnection cn = Database.VEPROMS_SqlConnection)
                    {
                        cn.Open();
                        using (SqlCommand cm = cn.CreateCommand())
                        {
                            cm.CommandType = CommandType.StoredProcedure;
                            cm.CommandTimeout = Database.SQLTimeout;
                            cm.CommandText = "existsGroup";
                            cm.Parameters.AddWithValue("@GID", _GID);
                            int count = (int)cm.ExecuteScalar();
                            _exists = (count > 0);
                        }
                    }
                }
                catch (Exception ex)
                {
                    if (_MyLog.IsErrorEnabled) _MyLog.Error("Group.DataPortal_Execute", ex);
                    throw new DbCslaException("Group.DataPortal_Execute", ex);
                }
            }
        }
        #endregion
        // Standard Default Code
        #region extension
        GroupExtension _GroupExtension = new GroupExtension();
        [Serializable()]
        partial class GroupExtension : extensionBase
        {
        }
        [Serializable()]
        class extensionBase
        {
            // Default Values
            public virtual DateTime DefaultDTS
            {
                get { return DateTime.Now; }
            }
            public virtual string DefaultUsrID
            {
                get { return Volian.Base.Library.VlnSettings.UserID; }
            }
            // 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 GroupConverter : ExpandableObjectConverter
    {
        public override object ConvertTo(ITypeDescriptorContext context, System.Globalization.CultureInfo culture, object value, Type destType)
        {
            if (destType == typeof(string) && value is Group)
            {
                // Return the ToString value
                return ((Group)value).ToString();
            }
            return base.ConvertTo(context, culture, value, destType);
        }
    }
    #endregion
} // Namespace


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

//namespace VEPROMS.CSLA.Library
//{
//  public partial class Group
//  {
//    partial class GroupExtension : extensionBase
//    {
//      // CSLATODO: Override automatic defaults
//      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 */);
//      }
//    }
//  }
//}