using Sarand.BusinessMgr.Net.Standard.Base.App;
using Sarand.BusinessMgr.Net.Standard.Base.Bus;
using Sarand.BusinessMgr.Net.Standard.Dbas.Bus;
using Sarand.BusinessMgr.Net.Standard.Dbas.Internal;
using Sarand.BusinessMgr.Net.Standard.Dbas.UpdateLog;
using Sarand.Net.Standard.Base.App;
using Sarand.Net.Standard.Base.Bus;
using Sarand.Net.Standard.Base.Core;
using Sarand.Net.Standard.Base.Dbas;
using Sarand.Net.Standard.Base.Utils;
using Sarand.Net.Standard.Dbas.Data;
using System;
using System.Collections.Generic;
using System.Data.Common;
using System.Linq;

namespace Sarand.BusinessMgr.Net.Standard.Dbas.Mgr
{
	//=======================================================================
	// Account manager - System Params.
	//=======================================================================
	partial class SbmAccountMgr_Dbas
	{
		//-------------------------------------------------------------------
		// Utilities.
		private List<StringPair> GetLogProperties(SbmSysParam sysParam)
		{
			return new List<StringPair>()
			{
				new StringPair("Id",SysId.ToString(sysParam.Id)),
				new StringPair("Status",sysParam.StatusCode)
			};
		}

		//-------------------------------------------------------------------
		// Create SysParam.
		public override SbmSysParam CreateSysParam(Sbm.SysParamCategory sysparamCategory, String sysparamName)
		{
			return new SbmSysParam_Dbas(null, sysparamCategory, sysparamName, 0);

		}
		private SbmSysParam_Dbas CreateSysParam(SysParam_Db dbSysParam)
		{
			ClearErrorState();
			SbmSysParam_Dbas sysparam = new SbmSysParam_Dbas(new SysId(dbSysParam._Id), (Sbm.SysParamCategory)dbSysParam._Cat, dbSysParam._Name, (ushort)dbSysParam._Flags);
			PopulateFrom(dbSysParam, sysparam);
			return sysparam;
		}

		//-------------------------------------------------------------------
		// Get SysParam.
		public override SbmSysParam GetSysParam(SbmSysParam.Params prm)
		{
			return GetSysParam(GetSysParamQueryFilter(prm).Concat(" AND ", "(", ")"));
		}
		private SbmSysParam GetSysParam(String filter)
		{
			ClearErrorState();
			long count = GetSysParamCount(filter);
			if (count == 0) return null;
			if (count != 1)
			{
				SetErrorState("Multiple Sys Params found");
				return null;
			}
			SbmSysParam sysParam = null;
			// Query data.
			using (var dbConnection = Database.CreateConnection())
			using (var dbCommand = dbConnection.CreateCommand())
			{
				try
				{
					dbConnection.Open();
					SysParam_Db dbSysParam = new SysParam_Db(DbInfo);
					dbSysParam.PopulateFrom(dbCommand, aliasSysParam, filter);
					sysParam = CreateSysParam(dbSysParam);
				}
				catch (Exception exc)
				{
					SetErrorState("Database query exception");
					SaLogger.Warn($"{SysUtil.Fn}\n\tQuery: {dbCommand.CommandText}\n\t{ExceptionUtil.GetErrorStateMessage(exc)}");
				}
			}
			return sysParam;
		}

		//-------------------------------------------------------------------
		// Validate SysParam.
		public override bool IsValidSysParamData(SbmSysParam.Data data, SbmSysParam.ErrField errField)
		{
			ClearErrorState();
			if (!base.IsValidSysParamData(data, errField)) return false;
			return true;
		}

		//-------------------------------------------------------------------
		// Insert SysParam.
		public override bool InsertSysParam(SbmSysParam sysparam, DbUpdateInfo dbUpdateInfo)
		{
			ClearErrorState();
			if (!IsValidSysParam(sysparam)) return false;
			if (SysId.IsValid(sysparam.Id)) return SetErrorState(ErrorMessage.ValiditemId);
			using (var dbConnection = Database.CreateConnection())
			using (var dbCommand = dbConnection.CreateCommand())
			{
				try
				{
					dbConnection.Open();
					SysParam_Db dbSysParam = new SysParam_Db(DbInfo);
					PopulateTo(dbSysParam, sysparam, dbUpdateInfo);
					if (SysParam_Db.FieldsNonId.Contains("Id"))
					{
						// Generate next Id.
						dbSysParam._Id = SysId.ToInt(Database.GetNextId("SysParam", dbUpdateInfo));
					}
					dbSysParam.ExecuteInsertCommand(dbCommand);
					sysparam.Id = new SysId(dbSysParam._Id);
					sysparam.Changed = false;
					if (DebugMode) SaLogger.Debug($"{SysUtil.Fn} Inserted. {GetLogProperties(sysparam).Concat(": ").Concat("", "\n\t")}");
				}
				catch (Exception exc) { SetErrorState(exc.Message); }
			}
			return !HasErrorState();
		}

		//-------------------------------------------------------------------
		// Update SysParam.
		public override bool UpdateSysParam(SbmSysParam sysparam, DbUpdateInfo dbUpdateInfo)
		{
			ClearErrorState();
			if (!IsValidSysParam(sysparam)) return false;
			if (!SysId.IsValid(sysparam.Id)) return SetErrorState(ErrorMessage.InvalidItemId);
			if (!sysparam.Changed)
			{
				if (DebugMode) SaLogger.Debug($"{SysUtil.Fn} Data not changed. {GetLogProperties(sysparam).Concat(": ").Concat("", "\n\t")}");
				return true;
			}
			using (var dbConnection = Database.CreateConnection())
			using (var dbCommand = dbConnection.CreateCommand())
			{
				try
				{
					// Retrieve SysParam.
					dbConnection.Open();
					SysParam_Db dbSysParam = new SysParam_Db(DbInfo);
					dbSysParam.PopulateFrom(dbCommand, aliasSysParam, "Id=" + SysId.ToString(sysparam.Id));
					SbmUpdateLogItemMonitor_SysParam updateLogMonitor = new SbmUpdateLogItemMonitor_SysParam(Internals, CreateSysParam(dbSysParam));

					// Update properties.
					PopulateTo(dbSysParam, sysparam, dbUpdateInfo);
					dbSysParam.ExecuteUpdateCommand(dbCommand);
					sysparam.Changed = false;
					if (DebugMode) SaLogger.Debug($"{SysUtil.Fn} Updated. {GetLogProperties(sysparam).Concat(": ").Concat("", "\n\t")}");

					// Record updates.
					updateLogMonitor.RecordUpdatedValues(sysparam);
					updateLogMonitor.LogUpdates();
				}
				catch (Exception exc) { SetErrorState(exc.Message); }
			}
			return !HasErrorState();
		}

		//-------------------------------------------------------------------
		// Delete SysParam.
		public override bool SysParamCanBeDeleted(SbmSysParam sysparam)
		{
			ClearErrorState();
			if (!base.SysParamCanBeDeleted(sysparam)) return false;
			return true;
		}
		public override bool DeleteSysParam(SbmSysParam sysparam, DbUpdateInfo dbUpdateInfo)
		{
			ClearErrorState();
			if (!SysParamCanBeDeleted(sysparam)) return false;
			using (var dbConnection = Database.CreateConnection())
			using (var dbCommand = dbConnection.CreateCommand())
			{
				try
				{
					// Retrieve SysParam.
					dbConnection.Open();
					SysParam_Db dbSysParam = new SysParam_Db(DbInfo);
					dbSysParam.PopulateFrom(dbCommand, aliasSysParam, "Id=" + sysparam.Id.ToString());
					// Delete SysParam.
					dbCommand.CommandType = System.Data.CommandType.Text;
					dbCommand.CommandText = "DELETE FROM " + SbmDbDfn.GetTableName(SbmDbDfn.TableIdx.SysParam) + " WHERE Id=" + SysId.ToString(sysparam.Id) + ";";
					dbCommand.ExecuteNonQuery();
					sysparam.Changed = false;
					if (DebugMode) SaLogger.Debug($"{SysUtil.Fn} Deleted. {GetLogProperties(sysparam).Concat(": ").Concat("", "\n\t")}");
				}
				catch (Exception exc) { SetErrorState(exc.Message); }
			}
			return !HasErrorState();
		}

		//-------------------------------------------------------------------
		// Copy data properties to and from database.
		private void PopulateTo(SysParam_Db dbSysParam, SbmSysParam sysparam, DbUpdateInfo dbUpdateInfo)
		{
			dbSysParam._Id = sysparam.Id.ToInt();
			dbSysParam._Cat = (short)sysparam.Category;
			dbSysParam._Name = sysparam.Name;
			dbSysParam._Value = sysparam.Value;
			dbSysParam._AffIdOwner = sysparam.AffiliateIdOwner.ToInt();
			dbSysParam._AffIdTarget = sysparam.AffiliateIdTarget.ToInt();
			dbSysParam._AssocId = sysparam.AssociationId.ToInt();
			// Common properties.
			//dbSysParam._Notes = sysparam.Notes;
			dbSysParam._Status = SacsSystem.GetStatusCode(sysparam.Status);
			dbSysParam._Flags = (short)sysparam.Flags;
			if (!SysId.IsValid(sysparam.Id))
			{
				dbSysParam._CreateOn = DateTime.UtcNow;
				dbSysParam._CreateBy = dbUpdateInfo.UserId.ToInt();
				dbSysParam._CreateHost = dbUpdateInfo.Host;
			}
			dbSysParam._UpdateOn = DateTime.UtcNow;
			dbSysParam._UpdateBy = dbUpdateInfo.UserId.ToInt();
			dbSysParam._UpdateHost = dbUpdateInfo.Host;
		}
		private void PopulateFrom(SysParam_Db dbSysParam, SbmSysParam sysparam)
		{
			//sysparam.Id = new SysId(dbSysParam._Id);
			sysparam.Category = (Sbm.SysParamCategory)dbSysParam._Cat;
			sysparam.Name = dbSysParam._Name;
			sysparam.Value = dbSysParam._Value;
			sysparam.AffiliateIdOwner = new SysId(dbSysParam._AffIdOwner ?? 0);
			sysparam.AffiliateIdTarget = new SysId(dbSysParam._AffIdTarget ?? 0);
			sysparam.AssociationId = new SysId(dbSysParam._AssocId ?? 0);
			// Common properties.
			//sysparam.Notes = dbSysParam._Notes;
			sysparam.Status = SacsSystem.GetStatusForCode(dbSysParam._Status);
			sysparam.SetCreateStamp(dbSysParam._CreateOn ?? default(DateTime), new SysId(dbSysParam._CreateBy ?? 0), dbSysParam._CreateHost);
			sysparam.SetUpdateStamp(dbSysParam._UpdateOn ?? default(DateTime), new SysId(dbSysParam._UpdateBy ?? 0), dbSysParam._UpdateHost);
			sysparam.AcceptChanges();
		}

		//-------------------------------------------------------------------
		// Column definitions.
		private static readonly String aliasSysParam = "aSysPrm";

		// Column definition population.
		private void SetSysParamColDfn
			(ColumnDfn col, String caption, int width, SbmDbDfn.ColumnIdx dbCol,
			ColumnAlignment align = ColumnAlignment.Default, DataValue.DataType dataType = DataValue.DataType.String,
			String alias = "", String prefix = "")
		{
			if (String.IsNullOrEmpty(alias) && SbmDbDfn.GetTableForColumn(dbCol) == SbmDbDfn.TableIdx.SysParam)
				alias = aliasSysParam;
			col.Set(caption, width, (int)dbCol, prefix + SbmDbDfn.GetColumnName(dbCol, false), SbmDbDfn.GetColumnNameQual(dbCol, alias), dataType, align);
			if (dataType == DataValue.DataType.String && dbCol != SbmDbDfn.ColumnIdx.Unknown)
				col.MaxLength = (int)SbmDbDfn.GetColTextLen(dbCol);
		}
		//-------------------------------------------------------------------
		// Getting prmSysParam column definition.
		public override ColumnDfn GetSysParamColumnDfn(SbmSysParam.Column columnId, string caption = "", int width = 0)
		{
			ColumnDfn columnDfn = new ColumnDfn((int)columnId, caption, width);
			switch (columnId)
			{
				case SbmSysParam.Column.Pos:
					SetSysParamColDfn(columnDfn, "Pos", 45, SbmDbDfn.ColumnIdx.Unknown, ColumnAlignment.Right);
					columnDfn.SortMode = ColumnDfn.ColumnSortMode.Off;
					columnDfn.ReadOnly = true;
					columnDfn.Resizable = false;
					break;
				case SbmSysParam.Column.Id:
					SetSysParamColDfn(columnDfn, "Id", 60, SbmDbDfn.ColumnIdx.SysParam_Id, ColumnAlignment.Right, DataValue.DataType.Long);
					columnDfn.ReadOnly = true;
					break;
				// SysParam Properties.
				case SbmSysParam.Column.Category:
					SetSysParamColDfn(columnDfn, "SysParam Category", 80, SbmDbDfn.ColumnIdx.SysParam_Cat);
					break;
				case SbmSysParam.Column.Name:
					SetSysParamColDfn(columnDfn, "Name", 100, SbmDbDfn.ColumnIdx.SysParam_Name);
					break;
				case SbmSysParam.Column.Value:
					SetSysParamColDfn(columnDfn, "Value", 100, SbmDbDfn.ColumnIdx.SysParam_Value);
					break;
				// Derived properties.
				case SbmSysParam.Column.AffIdOwner:
					SetSysParamColDfn(columnDfn, "Affiliate Id Owner", 80, SbmDbDfn.ColumnIdx.SysParam_AffIdOwner, ColumnAlignment.Center, DataValue.DataType.Long);
					columnDfn.ReadOnly = true;
					break;
				case SbmSysParam.Column.AffIdTarget:
					SetSysParamColDfn(columnDfn, "Affiliate Id Target", 80, SbmDbDfn.ColumnIdx.SysParam_AffIdTarget, ColumnAlignment.Center, DataValue.DataType.Long);
					columnDfn.ReadOnly = true;
					break;
				case SbmSysParam.Column.AssocId:
					SetSysParamColDfn(columnDfn, "Assoc Id", 80, SbmDbDfn.ColumnIdx.SysParam_AssocId, ColumnAlignment.Center, DataValue.DataType.Long);
					columnDfn.ReadOnly = true;
					break;
				// Common properties.
				/*case SbmSysParam.Column.Notes:
					SetSysParamColDfn(columnDfn, "Notes", 240, SbmDbDfn.ColumnIdx.SysParam_Notes);
					break;*/
				case SbmSysParam.Column.Status:
					SetSysParamColDfn(columnDfn, "Status", 50, SbmDbDfn.ColumnIdx.SysParam_Status, ColumnAlignment.Center);
					break;
				case SbmSysParam.Column.Status_Desc:
					SetSysParamColDfn(columnDfn, "Status", 50, SbmDbDfn.ColumnIdx.SysParam_Status, ColumnAlignment.Center);
					break;
				case SbmSysParam.Column.Status_Ind:
					SetSysParamColDfn(columnDfn, "Status", 50, SbmDbDfn.ColumnIdx.SysParam_Status, ColumnAlignment.Center, DataValue.DataType.TriState);
					columnDfn.TriStateFormat = ColumnTriStateFormat.Lights;
					break;
				case SbmSysParam.Column.CreateOn_Date:
					SetSysParamColDfn(columnDfn, "Created", 65, SbmDbDfn.ColumnIdx.SysParam_CreateOn, ColumnAlignment.Center, DataValue.DataType.Date);
					columnDfn.ReadOnly = true;
					break;
				case SbmSysParam.Column.UpdateOn_Date:
					SetSysParamColDfn(columnDfn, "Updated", 65, SbmDbDfn.ColumnIdx.SysParam_UpdateOn, ColumnAlignment.Center, DataValue.DataType.Date);
					columnDfn.ReadOnly = true;
					break;
			}
			if (!String.IsNullOrEmpty(caption))
				columnDfn.Caption = caption;
			if (width > 0)
				columnDfn.Width = width;
			return columnDfn;
		}

		//-------------------------------------------------------------------
		// SysParam query filter.
		public override List<string> GetSysParamQueryFilter(SbmSysParam.Params prm)
		{
			List<String> filter = new List<String>();

			// Param Id.
			String colSysParam_Id = SbmDbDfn.GetColumnNameQual(SbmDbDfn.ColumnIdx.SysParam_Id, aliasSysParam);
			if (prm.IdsIncluded.HasValidIds())
				filter.Add($"{colSysParam_Id} IN ({prm.IdsIncluded.Concat(",")})");
			if (prm.IdsExcluded.HasValidIds())
				filter.Add($"{colSysParam_Id} NOT IN ({prm.IdsExcluded.Concat(",")})");

			// Category.
			String colSysParam_Cat = SbmDbDfn.GetColumnNameQual(SbmDbDfn.ColumnIdx.SysParam_Cat, aliasSysParam);
			if (prm.Category > 0)
				filter.Add($"{colSysParam_Cat}={(int)prm.Category}");

			// Name.
			String colSysParam_Name = SbmDbDfn.GetColumnNameQual(SbmDbDfn.ColumnIdx.SysParam_Name, aliasSysParam);
			if (!StringUtil.IsEmpty(prm.Name))
				filter.Add($"{colSysParam_Name}='{DbQuery.FormatForCondition(prm.Name)}'");
			else if (!StringUtil.IsEmpty(prm.NamePartial))
				filter.Add($"{colSysParam_Name} LIKE '%{DbQuery.FormatForLike(prm.NamePartial)}%'");

			// Affiliate Owner Id.
			String colSysParam_AffIdOwner = SbmDbDfn.GetColumnNameQual(SbmDbDfn.ColumnIdx.SysParam_AffIdOwner, aliasSysParam);
			if (SysId.IsValid(prm.AffIdOwner))
				filter.Add($"{colSysParam_AffIdOwner}={SysId.ToLong(prm.AffIdOwner)}");

			// Affiliate Target Id.
			String colSysParam_AffIdTarget = SbmDbDfn.GetColumnNameQual(SbmDbDfn.ColumnIdx.SysParam_AffIdTarget, aliasSysParam);
			if (SysId.IsValid(prm.AssocId))
				filter.Add($"{colSysParam_AffIdTarget}={SysId.ToLong(prm.AssocId)}");

			// Association Id.
			String colSysParam_AssocId = SbmDbDfn.GetColumnNameQual(SbmDbDfn.ColumnIdx.SysParam_AssocId, aliasSysParam);
			if (SysId.IsValid(prm.AssocId))
				filter.Add($"{colSysParam_AssocId}={SysId.ToLong(prm.AssocId)}");

			// Common Properties
			/* Notes.
			String colSysParam_Notes = SbmDbDfn.GetColumnNameQual(SbmDbDfn.ColumnIdx.SysParam_Notes, aliasSysParam);
			if (!StringUtil.IsEmpty(prm.NotesPartial))
				filter.Add(colSysParam_Notes + " LIKE '%" + DbQuery.FormatForLike(prm.NotesPartial) + "%'");

			// Status.
			String colSysParam_Status = SbmDbDfn.GetColumnNameQual(SbmDbDfn.ColumnIdx.SysParam_Status, aliasSysParam);
			if (prm.StatusCat == SbmSysParam.StatusCat.ActiveOnly)
				filter.Add(colSysParam_Status + " = '" + StatusActive + "'");*/

			if (filter.Count < 1 && prm.IncludeDefaultFilter) filter.Add("1=1");
			return filter;
		}
		// SysParam sort columns.
		public List<String> GetSysParamSortColumns(SbmSysParam.Params prm)
		{
			// Sort sequence:
			List<String> sortColumnNames = new List<String>();
			foreach (var columnDfn in prm.SortColumns)
			{
				// Need to ensure correct alias used for SysParam columns in case of conflict.
				String sortCol = String.Empty;
				if (SbmDbDfn.GetTableForColumn((SbmDbDfn.ColumnIdx)columnDfn.DbColumn) == SbmDbDfn.TableIdx.SysParam)
				{
					sortCol = SbmDbDfn.GetColumnNameQual((SbmDbDfn.ColumnIdx)columnDfn.DbColumn, aliasSysParam);
				}
				else
				{
					sortCol = columnDfn.DataName;
					if (!StringUtil.IsEmpty(columnDfn.SortDataName))
						sortCol = columnDfn.SortDataName;
				}
				if (!sortCol.IsEmpty())
				{
					DbOrderByNullMode orderByNullMode = DbOrderByNullMode.Default; // eSaOrderByDemoteNulls, eSaOrderByPromoteNulls
					sortColumnNames.Add(DbQuery.FormatForOrderBy(sortCol, columnDfn.SortAscending, orderByNullMode).Concat(", "));
				}
			}
			sortColumnNames.RemoveBlanks();
			if (sortColumnNames.IsEmpty())
			{
				// Default sort columns:
				sortColumnNames.Add(SbmDbDfn.GetColumnNameQual(SbmDbDfn.ColumnIdx.SysParam_AffIdOwner, aliasSysParam) + " ASC");
			}
			return sortColumnNames;
		}

		//-------------------------------------------------------------------
		// SysParam count.
		private long GetSysParamCount(String filter)
		{
			ClearErrorState();
			return Database.GetRowCount(SbmDbDfn.GetTableName(SbmDbDfn.TableIdx.SysParam) + " As " + aliasSysParam, filter);
		}
		public override long GetSysParamCount(SbmSysParam.Params prm)
		{
			ClearErrorState();
			return GetSysParamCount(GetSysParamQueryFilter(prm).Concat(" AND ", "(", ")"));
		}

		//-------------------------------------------------------------------
		// SysParam list.
		public override List<SbmSysParam> GetSysParamList(SbmSysParam.Params prm)
		{
			ClearErrorState();
			List<SbmSysParam> sysParams = new List<SbmSysParam>();
			DbQuery qry = new DbQuery(Database.DbmsType);
			qry.Tables.Add(SbmDbDfn.GetTableName(SbmDbDfn.TableIdx.SysParam), aliasSysParam);
			SysParam_Db dbSysParam = new SysParam_Db(DbInfo);
			qry.Columns.AddRange(dbSysParam.ExistingColumnNames);
			qry.Filters.AddRange(GetSysParamQueryFilter(prm));
			qry.OrderBy.AddRange(GetSysParamSortColumns(prm));
			// Query data.
			using (var dbConnection = Database.CreateConnection())
			using (var dbCommand = dbConnection.CreateCommand())
			{
				try
				{
					dbConnection.Open();
					dbCommand.CommandText = qry.BuildQuery(prm.ResultsPaging);
					using (DbDataReader dbDataReader = dbCommand.ExecuteReader())
					{
						while (dbDataReader.Read())
						{
							dbSysParam = new SysParam_Db(DbInfo);
							dbSysParam.PopulateFrom(dbDataReader);
							sysParams.Add(CreateSysParam(dbSysParam));
						}
					}
				}
				catch (Exception exc)
				{
					SetErrorState("Database query exception");
					SaLogger.Warn($"{SysUtil.Fn}\n\tQuery: {dbCommand.CommandText}\n\t{ExceptionUtil.GetErrorStateMessage(exc)}");
				}
			}
			return sysParams;
		}

		//-------------------------------------------------------------------
		// SysParam query execution.
		public override DbResultSet ExecuteSysParamQuery(List<ColumnDfn> columns, SbmSysParam.Params prm)
		{
			ClearErrorState();

			//---------------------------------------------------------------------
			// Construct query.
			DbQuery query = new DbQuery(Database.DbmsType);
			query.Tables.Add(SbmDbDfn.GetTableName(SbmDbDfn.TableIdx.SysParam), aliasSysParam);

			// SysParam Properties - add columns as defined in query list.
			if (columns.HasId(SbmSysParam.Column.Id))
				query.Columns.Add(SbmDbDfn.GetColumnNameQual(SbmDbDfn.ColumnIdx.SysParam_Id, aliasSysParam));
			if (columns.HasId(SbmSysParam.Column.Category))
				query.Columns.Add(SbmDbDfn.GetColumnNameQual(SbmDbDfn.ColumnIdx.SysParam_Cat, aliasSysParam));
			if (columns.HasId(SbmSysParam.Column.Name))
				query.Columns.Add(SbmDbDfn.GetColumnNameQual(SbmDbDfn.ColumnIdx.SysParam_Name, aliasSysParam));
			if (columns.HasId(SbmSysParam.Column.Value))
				query.Columns.Add(SbmDbDfn.GetColumnNameQual(SbmDbDfn.ColumnIdx.SysParam_Value, aliasSysParam));
			if (columns.HasId(SbmSysParam.Column.AffIdOwner))
				query.Columns.Add(SbmDbDfn.GetColumnNameQual(SbmDbDfn.ColumnIdx.SysParam_AffIdOwner, aliasSysParam));
			if (columns.HasId(SbmSysParam.Column.AffIdTarget))
				query.Columns.Add(SbmDbDfn.GetColumnNameQual(SbmDbDfn.ColumnIdx.SysParam_AffIdTarget, aliasSysParam));
			if (columns.HasId(SbmSysParam.Column.AssocId))
				query.Columns.Add(SbmDbDfn.GetColumnNameQual(SbmDbDfn.ColumnIdx.SysParam_AssocId, aliasSysParam));
			// Common Properties
			/*if (columns.HasId(SbmSysParam.Column.Notes))
				query.Columns.Add(SbmDbDfn.GetColumnNameQual(SbmDbDfn.ColumnIdx.SysParam_Notes, aliasSysParam));*/
			if (columns.HasId(SbmSysParam.Column.Status) || columns.HasId(SbmSysParam.Column.Status_Desc) || columns.HasId(SbmSysParam.Column.Status_Ind))
				query.Columns.Add(SbmDbDfn.GetColumnNameQual(SbmDbDfn.ColumnIdx.SysParam_Status, aliasSysParam));
			if (columns.HasId(SbmSysParam.Column.CreateOn_Date))
				query.Columns.Add(SbmDbDfn.GetColumnNameQual(SbmDbDfn.ColumnIdx.SysParam_CreateOn, aliasSysParam));
			if (columns.HasId(SbmSysParam.Column.UpdateOn_Date))
				query.Columns.Add(SbmDbDfn.GetColumnNameQual(SbmDbDfn.ColumnIdx.SysParam_UpdateOn, aliasSysParam));

			//---------------------------------------------------------------------
			// Populate filter.
			query.Filters.AddRange(GetSysParamQueryFilter(prm));

			if (prm.IdsIncluded.Count != 1)
			{
				// Configure sort sequence.
				foreach (String sortColumn in GetSysParamSortColumns(prm))
					query.OrderBy.Add(sortColumn);
			}

			//---------------------------------------------------------------------
			//return new DbResultSet_DataTableReader(Database, query.BuildQuery());
			return DbResultSet_DataReader.ExecuteQuery(Database, query.BuildQuery(prm.ResultsPaging));
		}
		//-------------------------------------------------------------------
	}
	//=======================================================================
}