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

namespace Saxonite.Net.Standard.Dbas.Mgr
{
	//=======================================================================
	partial class SaxReferenceMgr_Dbas
	{
		//*******************************************************************
		// Reference Mgr - Sport
		//*******************************************************************
		// Utilities.
		private List<StringPair> GetLogProperties(SaxSport sport)
		{
			return new List<StringPair>()
			{
				new StringPair("Id", SysId.ToString(sport.Id)),
				new StringPair("Name", sport.Name),
				new StringPair("Status", sport.StatusCode)
			};
		}

		//-------------------------------------------------------------------
		// Create item.
		public override SaxSport CreateSport()
		{
			ClearErrorState();
			return new SaxSport_Dbas(CoreDatabase, null, 0);
		}
		private SaxSport_Dbas CreateSport(Sport_Db dbSport)
		{
			ClearErrorState();
			SaxSport_Dbas sport = new SaxSport_Dbas(CoreDatabase, new SysId(dbSport._Id), (UInt16)dbSport._Flags);
			PopulateFrom(dbSport, sport);
			return sport;
		}

		//-------------------------------------------------------------------
		// Get item.
		public override SaxSport GetSport(SaxSport.Params prm)
		{
			ClearErrorState();
			return GetSport(GetSportQueryFilter(prm).Concat(" And ", "(", ")"));
		}
		private SaxSport GetSport(String filter)
		{
			ClearErrorState();
			long count = GetSportCount(filter);
			if (count == 0) return null;
			if (count != 1)
			{
				SetErrorState("Multiple items found");
				return null;
			}
			SaxSport sport = null;
			// Query data.
			using (var dbConnection = CoreDatabase.CreateConnection())
			using (var dbCommand = dbConnection.CreateCommand())
			{
				try
				{
					dbConnection.Open();
					Sport_Db dbSport = new Sport_Db(CoreDbInfo);
					dbSport.PopulateFrom(dbCommand, aliasSport, filter);
					sport = CreateSport(dbSport);
				}
				catch (Exception exc)
				{
					SetErrorState("Database query exception");
					SaLogger.Warn($"{SysUtil.Fn}\n\tQuery: {dbCommand.CommandText}\n\t{ExceptionUtil.GetErrorStateMessage(exc)}");
				}
			}
			return sport;
		}

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

		//-------------------------------------------------------------------
		// Insert item.
		public override bool InsertSport(SaxSport sport, DbUpdateInfo dbUpdateInfo)
		{
			ClearErrorState();
			if (!IsValidSport(sport)) return false;
			if (SysId.IsValid(sport.Id)) return SetErrorState(ErrorMessage.ValidItemId);
			using (var dbConnection = CoreDatabase.CreateConnection())
			using (var dbCommand = dbConnection.CreateCommand())
			{
				try
				{
					dbConnection.Open();
					Sport_Db dbSport = new Sport_Db(CoreDbInfo);
					PopulateTo(dbSport, sport, dbUpdateInfo);
					if (Sport_Db.FieldsNonId.Contains("Id"))
					{
						// Generate next Id.
						// ToDo dbSport._Id = CoreDatabase.GetNextIdFromTable("Sport");
					}
					dbSport.ExecuteInsertCommand(dbCommand);
					sport.Id = new SysId(dbSport._Id);
					sport.Changed = false;
					if (DebugMode) SaLogger.Debug($"{SysUtil.Fn} Inserted.{GetLogProperties(sport).Concat(": ").Concat("", "\n\t")}");
				}
				catch (Exception exc) { SetErrorState(exc.Message); }
			}
			return !HasErrorState();
		}

		//-------------------------------------------------------------------
		// Update item.
		public override bool UpdateSport(SaxSport sport, DbUpdateInfo dbUpdateInfo)
		{
			ClearErrorState();
			if (!IsValidSport(sport)) return false;
			if (!SysId.IsValid(sport.Id)) return SetErrorState(ErrorMessage.InvalidItemId);
			if (!sport.Changed)
			{
				if (DebugMode) SaLogger.Debug($"{SysUtil.Fn} Data not changed.{GetLogProperties(sport).Concat(": ").Concat("", "\n\t")}");
				return true;
			}
			using (var dbConnection = CoreDatabase.CreateConnection())
			using (var dbCommand = dbConnection.CreateCommand())
			{
				try
				{
					// Retrieve item.
					dbConnection.Open();
					Sport_Db dbSport = new Sport_Db(CoreDbInfo);
					dbSport.PopulateFrom(dbCommand, aliasSport, "Id=" + SysId.ToString(sport.Id));
					// ToDo SaxUpdateLogItemMonitor_Sport updateLogMonitor = new SaxUpdateLogItemMonitor_Sport(SessionContext, CreateSport(dbSport), dbUpdateInfo);
					// Update item.
					PopulateTo(dbSport, sport, dbUpdateInfo);
					dbSport.ExecuteUpdateCommand(dbCommand);
					sport.Changed = false;
					if (DebugMode) SaLogger.Debug($"{SysUtil.Fn} Updated.{GetLogProperties(sport).Concat(": ").Concat("", "\n\t")}");
					// Record updates.
					// ToDo updateLogMonitor.RecordUpdatedValues(sport);
					// ToDo updateLogMonitor.LogUpdates();
				}
				catch (Exception exc) { SetErrorState(exc.Message); }
			}
			return !HasErrorState();
		}

		//-------------------------------------------------------------------
		// Delete item.
		public override bool SportCanBeDeleted(SaxSport sport)
		{
			ClearErrorState();
			if (!base.SportCanBeDeleted(sport)) return false;
			return true;
		}
		public override bool DeleteSport(SaxSport sport, DbUpdateInfo dbUpdateInfo)
		{
			ClearErrorState();
			if (!SportCanBeDeleted(sport)) return false;

			// Sports are logically deleted by changing the status.
			sport.Status = SaStatus.Deleted;
			return UpdateSport(sport, dbUpdateInfo);

			/*
			 * Physical deletion.
			using (var dbConnection = CoreDatabase.CreateConnection())
			using (var dbCommand = dbConnection.CreateCommand())
			{
				try
				{
					// Retrieve item.
					dbConnection.Open();
					Sport_Db dbSport = new Sport_Db(CoreDbInfo);
					dbSport.PopulateFrom(dbCommand, aliasSport, "Id=" + sport.Id.ToString());
					// Delete item.
					dbCommand.CommandType = System.Data.CommandType.Text;
					dbCommand.CommandText = "DELETE FROM " + SaxDbDfn_Core.GetTableName(SaxDbDfn_Core.TableIdx.Sport) + " WHERE Id=" + SysId.ToString(sport.Id) + ";";
					dbCommand.ExecuteNonQuery();
					sport.Changed = false;
					if (DebugMode) SaLogger.Debug($"{SysUtil.Fn} Deleted. " + GetLogProperties(sport).Concat(": ").Concat("", "\n\t"));
				}
				catch (Exception exc) { SetErrorState(exc.Message); }
			}
			return !HasErrorState();
			*/
		}

		//-------------------------------------------------------------------
		// Copy data properties to and from database.
		private void PopulateTo(Sport_Db dbSport, SaxSport sport, DbUpdateInfo dbUpdateInfo)
		{
			dbSport._Id = SysId.ToInt(sport.Id);
			dbSport._Grouping = (short)sport.Grouping;
			dbSport._SportIdParent = SysId.ToInt(sport.SportIdParent);
			dbSport._Name = sport.Name;
			dbSport._SpecialityLabel = (short)sport.SpecialityLabel;
			// Common properties.
			dbSport._Notes = sport.Notes;
			dbSport._Status = SacsSystem.GetStatusCode(sport.Status);
			dbSport._Flags = (short)sport.Flags;
			if (!SysId.IsValid(sport.Id))
			{
				dbSport._CreateOn = DateTime.Now;
				dbSport._CreateBy = dbUpdateInfo.UserId.ToInt();
				dbSport._CreateHost = dbUpdateInfo.Host;
			}
			dbSport._UpdateOn = DateTime.Now;
			dbSport._UpdateBy = dbUpdateInfo.UserId.ToInt();
			dbSport._UpdateHost = dbUpdateInfo.Host;
		}
		private void PopulateFrom(Sport_Db dbSport, SaxSport sport)
		{
			//sport.Id = new SysId(dbSport._Id);
			sport.Grouping = (Sax.SportGrouping)(dbSport._Grouping ?? (int)Sax.SportGrouping.Specific);
			sport.SportIdParent = new SysId(dbSport._SportIdParent ?? 0);
			sport.Name = dbSport._Name;
			sport.SpecialityLabel = (Sax.SportSpecialityLabel)(dbSport._SpecialityLabel ?? 0);
			// Common properties.
			sport.Notes = dbSport._Notes;
			sport.Status = SacsSystem.GetStatusForCode(dbSport._Status);
			sport.SetCreateStamp(dbSport._CreateOn, new SysId(dbSport._CreateBy), dbSport._CreateHost);
			sport.SetUpdateStamp(dbSport._UpdateOn, new SysId(dbSport._UpdateBy), dbSport._UpdateHost);
			sport.AcceptChanges();
		}

		//-------------------------------------------------------------------
		// Item column definitions.
		private static readonly String aliasSport = "Spt";
		private static readonly String aliasSport_Parent = "Spt_Prt";
		private static readonly String prefixSport_Parent = aliasSport_Parent + "_";
		//private static readonly String colSport_AssociatedData_Count   = "UsrAct_AD_Count";
		private void SetSportColDfn
			(ColumnDfn col, String caption, int width, SaxDbDfn_Core.ColumnIdx dbCol,
			ColumnAlignment align = ColumnAlignment.Default, DataValue.DataType dataType = DataValue.DataType.String,
			String alias = "", String prefix = "")
		{
			if (String.IsNullOrEmpty(alias) && SaxDbDfn_Core.GetTableForColumn(dbCol) == SaxDbDfn_Core.TableIdx.Sport)
				alias = aliasSport;
			col.Set(caption, width, (int)dbCol, prefix + SaxDbDfn_Core.GetColumnName(dbCol, false), SaxDbDfn_Core.GetColumnNameQual(dbCol, alias), dataType, align);
			if (dataType == DataValue.DataType.String && dbCol != SaxDbDfn_Core.ColumnIdx.Unknown)
				col.MaxLength = (int)SaxDbDfn_Core.GetColTextLen(dbCol);
		}
		public override ColumnDfn GetSportColumnDfn(SaxSport.Column columnId, string caption = "", int width = 0)
		{
			ColumnDfn columnDfn = new ColumnDfn((int)columnId, caption, width);
			switch (columnId)
			{
				//-----------------------------------------------------------
				// Identification.
				case SaxSport.Column.Pos:
					SetSportColDfn(columnDfn, "Pos", 60, SaxDbDfn_Core.ColumnIdx.Unknown, ColumnAlignment.Right);
					columnDfn.SortMode = ColumnDfn.ColumnSortMode.Off;
					columnDfn.ReadOnly = true;
					columnDfn.Resizable = false;
					break;
				case SaxSport.Column.Id:
					SetSportColDfn(columnDfn, "Id", 80, SaxDbDfn_Core.ColumnIdx.Sport_Id, ColumnAlignment.Right, DataValue.DataType.Long);
					columnDfn.ReadOnly = true;
					break;

				//-----------------------------------------------------------
				// Properties.
				case SaxSport.Column.Grouping:
					SetSportColDfn(columnDfn, "Grouping", 80, SaxDbDfn_Core.ColumnIdx.Sport_Grouping, ColumnAlignment.Center, DataValue.DataType.Long);
					break;
				case SaxSport.Column.Grouping_Desc:
					SetSportColDfn(columnDfn, "Grouping", 100, SaxDbDfn_Core.ColumnIdx.Sport_Grouping, ColumnAlignment.Center);
					break;
				case SaxSport.Column.SportIdParent:
					SetSportColDfn(columnDfn, "Parent #", 60, SaxDbDfn_Core.ColumnIdx.Sport_SportIdParent, ColumnAlignment.Right, DataValue.DataType.Long);
					columnDfn.ReadOnly = true;
					break;
				case SaxSport.Column.ParentSport_Name:
					SetSportColDfn(columnDfn, "Parent", 120, SaxDbDfn_Core.ColumnIdx.Sport_Name, ColumnAlignment.Center, DataValue.DataType.String, aliasSport_Parent, prefixSport_Parent);
					columnDfn.ReadOnly = true;
					break;
				case SaxSport.Column.Name:
					SetSportColDfn(columnDfn, "Name", 120, SaxDbDfn_Core.ColumnIdx.Sport_Name);
					break;
				case SaxSport.Column.SpecialityLabel:
					SetSportColDfn(columnDfn, "Speciality label", 80, SaxDbDfn_Core.ColumnIdx.Sport_SpecialityLabel, ColumnAlignment.Center, DataValue.DataType.Long);
					break;
				case SaxSport.Column.SpecialityLabel_Desc:
					SetSportColDfn(columnDfn, "Speciality label", 100, SaxDbDfn_Core.ColumnIdx.Sport_SpecialityLabel, ColumnAlignment.Center);
					break;

				//-----------------------------------------------------------
				// Derived properties.

				//-----------------------------------------------------------
				// Common properties.
				case SaxSport.Column.Notes:
					SetSportColDfn(columnDfn, "Notes", 240, SaxDbDfn_Core.ColumnIdx.Sport_Notes);
					break;
				case SaxSport.Column.Flags:
					SetSportColDfn(columnDfn, "Flags", 60, SaxDbDfn_Core.ColumnIdx.Sport_Flags, ColumnAlignment.Center, DataValue.DataType.Long);
					break;
				case SaxSport.Column.Status:
					SetSportColDfn(columnDfn, "Status", 80, SaxDbDfn_Core.ColumnIdx.Sport_Status, ColumnAlignment.Center);
					break;
				case SaxSport.Column.Status_Desc:
					SetSportColDfn(columnDfn, "Status", 90, SaxDbDfn_Core.ColumnIdx.Sport_Status, ColumnAlignment.Center);
					break;
				case SaxSport.Column.Status_Ind:
					SetSportColDfn(columnDfn, "Status", 80, SaxDbDfn_Core.ColumnIdx.Sport_Status, ColumnAlignment.Center, DataValue.DataType.TriState);
					columnDfn.TriStateFormat = ColumnTriStateFormat.Lights;
					break;
				case SaxSport.Column.CreateOn_Date:
					SetSportColDfn(columnDfn, "Created", 80, SaxDbDfn_Core.ColumnIdx.Sport_CreateOn, ColumnAlignment.Center, DataValue.DataType.Date);
					columnDfn.ReadOnly = true;
					break;
				case SaxSport.Column.UpdateOn_Date:
					SetSportColDfn(columnDfn, "Updated", 80, SaxDbDfn_Core.ColumnIdx.Sport_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;
		}

		//-------------------------------------------------------------------
		// Item query filter.
		public override List<string> GetSportQueryFilter(SaxSport.Params prm)
		{
			List<String> filter = new List<String>();
			String colId = SaxDbDfn_Core.GetColumnNameQual(SaxDbDfn_Core.ColumnIdx.Sport_Id, aliasSport);

			// Item Ids.
			if (prm.IdsIncluded.HasValidIds())
				filter.Add($"{colId} IN ({prm.IdsIncluded.Concat(",")})");
			if (prm.IdsExcluded.HasValidIds())
				filter.Add($"{colId} NOT IN ({prm.IdsExcluded.Concat(",")})");

			// Grouping.
			if (prm.SportGroupingCat != SaxSport.SportGroupingCat.Any)
			{
				String colGrouping = SaxDbDfn_Core.GetColumnNameQual(SaxDbDfn_Core.ColumnIdx.Sport_Grouping, aliasSport);
				String isNullGrouping = $"IsNull({colGrouping},{(int)Sax.SportGrouping.Specific})";
				if (prm.SportGroupingCat == SaxSport.SportGroupingCat.Specific)
					filter.Add($"{isNullGrouping} IN ({(int)Sax.SportGrouping.Specific})");
				else if (prm.SportGroupingCat == SaxSport.SportGroupingCat.Banner)
					filter.Add($"{isNullGrouping} IN ({(int)Sax.SportGrouping.Banner})");
				else if (prm.SportGroupingCat == SaxSport.SportGroupingCat.BannerOrSpecific)
					filter.Add($"{isNullGrouping} IN ({(int)Sax.SportGrouping.Specific},{(int)Sax.SportGrouping.Banner})");
				else if (prm.SportGroupingCat == SaxSport.SportGroupingCat.Group)
					filter.Add($"{isNullGrouping} IN ({(int)Sax.SportGrouping.Group})");
			}

			// Parent Sport.
			if (SysId.IsValid(prm.SportIdParent))
				filter.Add($"{SaxDbDfn_Core.GetColumnNameQual(SaxDbDfn_Core.ColumnIdx.Sport_SportIdParent, aliasSport)}={prm.SportIdParent.ToLong()}");

			// Generic filter.
			if (!StringUtil.IsEmpty(prm.SportFilter))
			{
				// Split filter into words.
				List<String> filterWords = prm.SportFilter.Split((char[])null).ToList();
				filterWords.RemoveDuplicatesCI();
				filterWords.RemoveBlanks();
				foreach (String filterWord in filterWords)
				{
					List<String> sportFilter = new List<String>();
					sportFilter.Add(SaxDbDfn_Core.GetColumnNameQual(SaxDbDfn_Core.ColumnIdx.Sport_Name, aliasSport) + " Like '%" + DbQuery.FormatForLike(filterWord, true) + "%'");
					filter.Add(sportFilter.Concat(" OR ", "(", ")"));
				}
			}

			// Name.
			if (!StringUtil.IsEmpty(prm.NameFull))
				filter.Add(SaxDbDfn_Core.GetColumnNameQual(SaxDbDfn_Core.ColumnIdx.Sport_Name, aliasSport) + "='" + DbQuery.FormatForCondition(prm.NameFull) + "'");
			if (!StringUtil.IsEmpty(prm.NamePartial))
				filter.Add(SaxDbDfn_Core.GetColumnNameQual(SaxDbDfn_Core.ColumnIdx.Sport_Name, aliasSport) + " Like '%" + DbQuery.FormatForLike(prm.NamePartial, true) + "%'");

			// Notes.
			if (!StringUtil.IsEmpty(prm.NotesPartial))
				filter.Add(SaxDbDfn_Core.GetColumnNameQual(SaxDbDfn_Core.ColumnIdx.Sport_Notes, aliasSport) + " LIKE '%" + DbQuery.FormatForLike(prm.NotesPartial) + "%'");

			// Status.
			if (prm.StatusCat != SaxSport.StatusCat.Any)
				filter.Add($"{SaxDbDfn_Core.GetColumnNameQual(SaxDbDfn_Core.ColumnIdx.Sport_Status, aliasSport)} {GetSportStatusCatFilterCondition(prm.StatusCat)}");

			if (filter.Count < 1) filter.Add("1=1");
			return filter;
		}
		internal static String GetSportStatusCatFilterCondition(SaxSport.StatusCat statusCat)
		{
			if (statusCat == SaxSport.StatusCat.ActiveOnly)
				return "='" + SacsSystem.GetStatusCode(SaStatus.Active) + "'";
			if (statusCat == SaxSport.StatusCat.InactiveOnly)
				return "='" + SacsSystem.GetStatusCode(SaStatus.Inactive) + "'";
			if (statusCat == SaxSport.StatusCat.NotDeleted)
				return "!='" + SacsSystem.GetStatusCode(SaStatus.Deleted) + "'";
			if (statusCat == SaxSport.StatusCat.DeletedOnly)
				return "='" + SacsSystem.GetStatusCode(SaStatus.Deleted) + "'";
			return "";
		}
		// Item sort columns.
		public List<String> GetSportSortColumns(SaxSport.Params prm)
		{
			// Sort sequence:
			List<String> sortColumnNames = new List<String>();
			foreach (var columnDfn in prm.SortColumns)
			{
				// Need to ensure correct alias used for Sport columns in case of conflict.
				String sortCol = String.Empty;
				if (SaxDbDfn_Core.GetTableForColumn((SaxDbDfn_Core.ColumnIdx)columnDfn.DbColumn) == SaxDbDfn_Core.TableIdx.Sport)
				{
					sortCol = SaxDbDfn_Core.GetColumnNameQual((SaxDbDfn_Core.ColumnIdx)columnDfn.DbColumn, aliasSport);
				}
				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(SaxDbDfn_Core.GetColumnNameQual(SaxDbDfn_Core.ColumnIdx.Sport_Id, aliasSport) + " ASC");
			}
			return sortColumnNames;
		}

		//-------------------------------------------------------------------
		// Item count.
		private long GetSportCount(String filter)
		{
			ClearErrorState();
			return CoreDatabase.GetRowCount(SaxDbDfn_Core.GetTableName(SaxDbDfn_Core.TableIdx.Sport) + " As " + aliasSport, filter);
		}
		public override long GetSportCount(SaxSport.Params prm)
		{
			ClearErrorState();
			return GetSportCount(GetSportQueryFilter(prm).Concat(" AND ", "(", ")"));
		}

		//-------------------------------------------------------------------
		// Item list.
		public override List<SaxSport> GetSportList(SaxSport.Params prm)
		{
			ClearErrorState();
			List<SaxSport> userReferences = new List<SaxSport>();
			DbQuery qry = new DbQuery(CoreDatabase.DbmsType);
			qry.Tables.Add(SaxDbDfn_Core.GetTableName(SaxDbDfn_Core.TableIdx.Sport), aliasSport);
			Sport_Db dbSport = new Sport_Db(CoreDbInfo);
			qry.Columns.AddRange(dbSport.ExistingColumnNames);
			qry.Filters.AddRange(GetSportQueryFilter(prm));
			qry.OrderBy.AddRange(GetSportSortColumns(prm));
			// Query data.
			using (var dbConnection = CoreDatabase.CreateConnection())
			using (var dbCommand = dbConnection.CreateCommand())
			{
				try
				{
					dbConnection.Open();
					dbCommand.CommandText = qry.BuildQuery(prm.ResultsPaging);
					using (DbDataReader dbDataReader = dbCommand.ExecuteReader())
					{
						while (dbDataReader.Read())
						{
							dbSport = new Sport_Db(CoreDbInfo);
							dbSport.PopulateFrom(dbDataReader);
							userReferences.Add(CreateSport(dbSport));
						}
					}
				}
				catch (Exception exc)
				{
					SetErrorState("Database query exception");
					SaLogger.Warn($"{SysUtil.Fn}\n\tQuery: {dbCommand.CommandText}\n\t{ExceptionUtil.GetErrorStateMessage(exc)}");
				}
			}
			return userReferences;
		}

		//-------------------------------------------------------------------
		// Item query execution.
		public override DbResultSet ExecuteSportQuery(List<ColumnDfn> columns, SaxSport.Params prm)
		{
			ClearErrorState();

			//---------------------------------------------------------------------
			// Construct query.
			DbQuery query = new DbQuery(CoreDatabase.DbmsType);
			query.Tables.Add(SaxDbDfn_Core.GetTableName(SaxDbDfn_Core.TableIdx.Sport), aliasSport);

			// Add columns as defined in query list.
			if (columns.HasId(SaxSport.Column.Id))
				query.Columns.Add(SaxDbDfn_Core.GetColumnNameQual(SaxDbDfn_Core.ColumnIdx.Sport_Id, aliasSport));
			if (columns.HasId(SaxSport.Column.Grouping) || columns.HasId(SaxSport.Column.Grouping_Desc))
				query.Columns.Add(SaxDbDfn_Core.GetColumnNameQual(SaxDbDfn_Core.ColumnIdx.Sport_Grouping, aliasSport));
			if (columns.HasId(SaxSport.Column.SportIdParent))
				query.Columns.Add(SaxDbDfn_Core.GetColumnNameQual(SaxDbDfn_Core.ColumnIdx.Sport_SportIdParent, aliasSport));
			if (columns.HasId(SaxSport.Column.Name))
				query.Columns.Add(SaxDbDfn_Core.GetColumnNameQual(SaxDbDfn_Core.ColumnIdx.Sport_Name, aliasSport));
			if (columns.HasId(SaxSport.Column.SpecialityLabel) || columns.HasId(SaxSport.Column.SpecialityLabel_Desc))
				query.Columns.Add(SaxDbDfn_Core.GetColumnNameQual(SaxDbDfn_Core.ColumnIdx.Sport_SpecialityLabel, aliasSport));
			// Common properties.
			if (columns.HasId(SaxSport.Column.Notes))
				query.Columns.Add(SaxDbDfn_Core.GetColumnNameQual(SaxDbDfn_Core.ColumnIdx.Sport_Notes, aliasSport));
			if (columns.HasId(SaxSport.Column.Flags))
				query.Columns.Add(SaxDbDfn_Core.GetColumnNameQual(SaxDbDfn_Core.ColumnIdx.Sport_Flags, aliasSport));
			if (columns.HasId(SaxSport.Column.Status) || columns.HasId(SaxSport.Column.Status_Desc) || columns.HasId(SaxSport.Column.Status_Ind))
				query.Columns.Add(SaxDbDfn_Core.GetColumnNameQual(SaxDbDfn_Core.ColumnIdx.Sport_Status, aliasSport));
			if (columns.HasId(SaxSport.Column.CreateOn_Date))
				query.Columns.Add(SaxDbDfn_Core.GetColumnNameQual(SaxDbDfn_Core.ColumnIdx.Sport_CreateOn, aliasSport));
			if (columns.HasId(SaxSport.Column.UpdateOn_Date))
				query.Columns.Add(SaxDbDfn_Core.GetColumnNameQual(SaxDbDfn_Core.ColumnIdx.Sport_UpdateOn, aliasSport));

			//---------------------------------------------------------------------
			// Parent Sport.
			if (columns.HasId(SaxSport.Column.ParentSport_Name))
			{
				DbQueryJoin joinSport = new DbQueryJoin(DbJoinType.LeftOuter);
				joinSport.Table = new StringPair(SaxDbDfn_Core.GetTableName(SaxDbDfn_Core.TableIdx.Sport), aliasSport_Parent);
				joinSport.Filters.Add(SaxDbDfn_Core.GetColumnNameQual(SaxDbDfn_Core.ColumnIdx.Sport_Id, aliasSport_Parent) + "=" + SaxDbDfn_Core.GetColumnNameQual(SaxDbDfn_Core.ColumnIdx.Sport_SportIdParent, aliasSport));
				query.Joins.Add(joinSport);
				List<SaxDbDfn_Core.ColumnIdx> cols = new List<SaxDbDfn_Core.ColumnIdx>();
				cols.Add(SaxDbDfn_Core.ColumnIdx.Sport_Name);
				foreach (var col in cols)
					query.Columns.Add(SaxDbDfn_Core.GetColumnNameQual(col, aliasSport_Parent), prefixSport_Parent + SaxDbDfn_Core.GetColumnName(col, false));
			}

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

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

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

		//-------------------------------------------------------------------
	}
	//=======================================================================
}