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| ///////////////////////////////////////////////////////////////////////////
// //
// Copyright (c) 2015 by Charta Software B.V. //
// All rights reserved //
// //
// Version: 1.7.0.83525 //
// Web site: https://pascal.chartasoftware.com/ //
// //
// This code and information are provided "as is" without warranty of //
// any kind. Dissemination of this information or reproduction of //
// this material is strictly forbidden unless prior written permission //
// is obtained from Charta Software B.V.. //
// //
///////////////////////////////////////////////////////////////////////////
unit WebSite.Table;
interface
uses
Boolean,
Collection.List,
DataMethod,
Table.Header.Identifier.Producer,
Table.Model,
Table.Row.Ordering.Column,
WebSite.Request,
WebSite.Table.Column,
WebSite.Table.Row.UriProducer,
WebSite.Table.Session,
WebSite.UriProducer.Type_;
type
TRenderScope = (rsBody, rsTable);
TSelectorMode = (smNone, smSelect, smDelete);
TWebSiteTable = class(TObject)
private
FColumns: TList<TWebSiteTableColumn>;
FTableModel: TTableModel;
FRowIdentifierProducer: TTableHeaderIdentifierProducer;
FRowUriProducer: TTableRowUriProducer;
FRecordUriProducer: TTypeUriProducer;
procedure SetTableModel(const Value: TTableModel);
procedure SetRowIdentifierProducer(const Value: TTableHeaderIdentifierProducer);
procedure SetRowUriProducer(const Value: TTableRowUriProducer);
procedure SetRecordUriProducer(const Value: TTypeUriProducer);
function Old_CreateDefaultRowIdentifierProducer(): TMultipleColumnsTableHeaderIdentifierProducer; deprecated;
procedure DetermineColumns();
public
InitialUpdateOperations: TUpdateMethods;
DefaultSortColumns: TSortColumns;
ShowFilter: TBoolean;
SelectorMode: TSelectorMode;
constructor Create(TableModel: TTableModel); virtual;
destructor Destroy(); override;
function GetSession(Request: TWebSiteRequest): TWebSiteTableSession;
procedure ReturnSession(Request: TWebSiteRequest; Session: TWebSiteTableSession);
property TableModel: TTableModel read FTableModel write SetTableModel;
property Columns: TList<TWebSiteTableColumn> read FColumns;
property RowIdentifierProducer: TTableHeaderIdentifierProducer read FRowIdentifierProducer write SetRowIdentifierProducer;
property RowUriProducer: TTableRowUriProducer read FRowUriProducer write SetRowUriProducer;
property RecordUriProducer: TTypeUriProducer read FRecordUriProducer write SetRecordUriProducer;
end;
implementation
uses
Dom.Element,
Integer._32,
Integer._32.Interval,
Object_.List,
Table.Header,
Table.Header.Model,
WebSite.Table.Column.FilterSource;
{ TWebSiteTable }
constructor TWebSiteTable.Create(TableModel: TTableModel);
begin
inherited Create();
Self.TableModel := TableModel;
FColumns := TObjectList<TWebSiteTableColumn>.Create();
DefaultSortColumns := TSortColumns.Create();
RowIdentifierProducer := Old_CreateDefaultRowIdentifierProducer();
DetermineColumns();
end;
destructor TWebSiteTable.Destroy();
begin
Columns.Free();
DefaultSortColumns.Free();
RowIdentifierProducer.ReleaseReference();
RowUriProducer.ReleaseReference();
RecordUriProducer.ReleaseReference();
TableModel.ReleaseReference();
inherited Destroy();
end;
procedure TWebSiteTable.DetermineColumns();
var
ColumnModel: TTableHeaderModel;
Headers: TTableHeaders;
Header: TTableHeader;
i: TInteger32;
Column: TWebSiteTableColumn;
begin
ColumnModel := TableModel.GetColumnModel();
Headers := ColumnModel.GetHeaders(TInteger32Interval.NewFromSize(ColumnModel.GetCount()));
for i := Headers.Range.Low to Headers.Range.High do
begin
Header := Headers[i];
Column := TWebSiteTableColumn.Create();
Column.Aggregates.AddAll(Header.Aggregates);
Columns.Add(Column);
end;
Headers.Free();
end;
function TWebSiteTable.GetSession(Request: TWebSiteRequest): TWebSiteTableSession;
var
Storage: TDomElement;
i: TInteger32;
Column: TWebSiteTableColumn;
FilterSource: TColumnFilterSource;
begin
Storage := Request.AcquireModuleStorage();
try
Result := TWebSiteTableSession.Create();
Result.Model := TableModel;
Result.ShowFilter := ShowFilter;
for Column in Columns do
Result.FilterColumns.Add(TFilterColumn.Create('', TDataMethod.Read in Column.EnabledMethods));
if Storage.Nodes.Count > 0 then
Result.ReadFromXml(Storage)
else
begin
Result.SortColumns.AssignFrom(DefaultSortColumns);
Result.EnabledOperations := InitialUpdateOperations;
for i := 0 to Columns.Count - 1 do
begin
FilterSource := Columns[i].FilterSource;
if FilterSource <> nil then
Result.FilterColumns[i].Expression := FilterSource.GetFilterText();
end;
end;
finally
Request.ReleaseModuleStorage();
end;
end;
function TWebSiteTable.Old_CreateDefaultRowIdentifierProducer(): TMultipleColumnsTableHeaderIdentifierProducer;
begin
// TODO: This is a hack to support old web site table that assumed the first column is the ID column
Result := TMultipleColumnsTableHeaderIdentifierProducer.Create();
Result.Indexes.Add(0);
end;
procedure TWebSiteTable.ReturnSession(Request: TWebSiteRequest; Session: TWebSiteTableSession);
var
Storage: TDomElement;
begin
Storage := Request.AcquireModuleStorage();
try
Session.WriteToXml(Storage);
Session.Free();
finally
Request.ReleaseModuleStorage();
end;
end;
procedure TWebSiteTable.SetRecordUriProducer(const Value: TTypeUriProducer);
begin
if Value <> RecordUriProducer then
begin
Value.AddReference();
RecordUriProducer.ReleaseReference();
FRecordUriProducer := Value;
end;
end;
procedure TWebSiteTable.SetRowIdentifierProducer(const Value: TTableHeaderIdentifierProducer);
begin
if Value <> RowIdentifierProducer then
begin
Value.AddReference();
RowIdentifierProducer.ReleaseReference();
FRowIdentifierProducer := Value;
end;
end;
procedure TWebSiteTable.SetRowUriProducer(const Value: TTableRowUriProducer);
begin
if Value <> RowUriProducer then
begin
Value.AddReference();
RowUriProducer.ReleaseReference();
FRowUriProducer := Value;
end;
end;
procedure TWebSiteTable.SetTableModel(const Value: TTableModel);
begin
if Value <> TableModel then
begin
Value.AddReference();
TableModel.ReleaseReference();
FTableModel := Value;
end;
end;
end.
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