current/DataAccess/Access_OUP_ADB.pas

unit Access_OUP_ADB;
interface

uses DataAccess, ABSMain, TypeDefs, Classes;

type
  TAccess_OUP_ADB = class(TDataAccess)
  private
    FDatabase:          TABSDatabase;
    FQuery:             TABSQuery;
    Fdat_files:         TFiles;
    Fdat_extensionsmap: TExtensionsMap;
  protected
  public
    constructor Create(DBFilename: String; ConnectionID: Integer; var Msg: TStatusMessages); override;
    procedure Close; override;

    procedure UpdateListCache;

    function GetLinksToFile(FileID: Integer): TLinks;

    function GetFileInfo(FileID: Integer): TFileInfo; override;
    function GetFilesList(Ext: String; Pattern: String;
      NoEmptyFiles: Boolean; SortType: TSortType): TStrings; override;
    function GetFileCount: Integer; override;
    function GetExtensionsList(ExtListFormat: TExtensionFormat): TStrings; override;

    procedure LoadDatFile(FileID: Integer; var Target: TStream); overload; override;
    procedure UpdateDatFile(FileID: Integer; Src: TStream); overload; override;
    procedure LoadDatFilePart(FileID, Offset, Size: Integer; var Target: TStream); overload; override;
    procedure UpdateDatFilePart(FileID, Offset, Size: Integer; Src: TStream); overload; override;

    function GetDatLinks(FileID: Integer): TDatLinkList; override;
    function GetDatLink(FileID, DatOffset: Integer): TDatLink; override;
    function GetRawList(FileID: Integer): TRawDataList; override;
    function GetRawInfo(FileID, DatOffset: Integer): TRawDataInfo; override;

    procedure LoadRawFile(FileID, DatOffset: Integer; var Target: TStream); overload; override;
    procedure UpdateRawFile(FileID, DatOffset: Integer; Src: TStream); overload; override;
    procedure LoadRawFilePart(FileID, DatOffset, Offset, Size: Integer; var Target: TStream); overload; override;
    procedure UpdateRawFilePart(FileID, DatOffset, Offset, Size: Integer; Src: TStream); overload; override;
  published
  end;


implementation

uses
  SysUtils, Data, Functions, ABSDecUtil, DB, DatLinks, StrUtils;


(*
================================================================================
                     Implementation of  TOniDataADB
*)


constructor TAccess_OUP_ADB.Create(DBFilename: String; ConnectionID: Integer; var Msg: TStatusMessages);
begin
  Msg := SM_UnknownError;
  if not FileExists(DBFilename) then
  begin
    Msg := SM_FileNotFound;
    Exit;
  end;
  FFileName := DBFilename;

  FDatabase := TABSDatabase.Create(nil);
  FDatabase.Exclusive := True;
  FDatabase.MultiUser := False;
  FDatabase.DatabaseName := 'OLDBcon' + IntToStr(ConnectionID);
  FDatabase.DatabaseFileName := DBFilename;
  FDatabase.Open;
  FQuery := TABSQuery.Create(FDatabase);
  FQuery.DisableControls;
  FQuery.RequestLive := False;
  FQuery.DatabaseName := 'OLDBcon' + IntToStr(ConnectionID);
  FQuery.SQL.Text := 'SELECT [name],[value] FROM globals ORDER BY [name] ASC';
  FQuery.Open;
  FQuery.First;
  repeat
    if FQuery.FieldByName('name').AsString = 'dbversion' then
    begin
      if FQuery.FieldByName('value').AsString <> DBversion then
      begin
        Msg := SM_IncompatibleDBVersion;
        FQuery.Close;
        Exit;
      end;
    end;
    if FQuery.FieldByName('name').AsString = 'lvl' then
      FLevelNumber := StrToInt(FQuery.FieldByName('value').AsString);
    if FQuery.FieldByName('name').AsString = 'DataOS' then
    begin
      if FQuery.FieldByName('value').AsString = 'WIN' then
        FDataOS := DOS_WIN
      else if FQuery.FieldByName('value').AsString = 'WINDEMO' then
        FDataOS := DOS_WINDEMO
      else if FQuery.FieldByName('value').AsString = 'MAC' then
        FDataOS := DOS_MAC
      else if FQuery.FieldByName('value').AsString = 'MACBETA' then
        FDataOS := DOS_MACBETA;
    end;
    FQuery.Next;
  until FQuery.EOF;
  FQuery.Close;

  Msg := SM_OK;
  FBackend := DB_ADB;

  FConnectionID := ConnectionID;
  FChangeRights := [CR_EditDat, CR_EditRaw, CR_ResizeDat, CR_ResizeRaw];

  UpdateListCache;
end;


procedure TAccess_OUP_ADB.Close;
begin
  FQuery.Free;
  FDatabase.Close;
  FDatabase.Free;
  Self.Free;
end;


procedure TAccess_OUP_ADB.UpdateListCache;
var
  i:     Integer;
  temps: String;
begin
  FQuery.SQL.Text := 'SELECT id,name,extension,[size],contenttype FROM datfiles ORDER BY id ASC;';
  FQuery.Open;
  SetLength(Fdat_files, FQuery.RecordCount);
  if FQuery.RecordCount > 0 then
  begin
    FQuery.First;
    i := 0;
    repeat
      Fdat_files[i].ID := FQuery.FieldByName('id').AsInteger;
      Fdat_files[i].Name := FQuery.FieldByName('name').AsString;
      Fdat_files[i].Extension := FQuery.FieldByName('extension').AsString;
      Fdat_files[i].Size := FQuery.FieldByName('size').AsInteger;
      Fdat_files[i].FileType := StrToInt('$'+FQuery.FieldByName('contenttype').AsString);
      Fdat_files[i].DatAddr := 0;
      Inc(i);
      FQuery.Next;
    until FQuery.EOF;
  end;
  FQuery.Close;

  FQuery.SQL.Text :=
    'SELECT extension,count(extension) AS x FROM datfiles GROUP BY extension ORDER BY extension ASC;';
  FQuery.Open;
  SetLength(Fdat_extensionsmap, FQuery.RecordCount);
  if FQuery.RecordCount > 0 then
  begin
    i := 0;
    repeat
      temps := FQuery.FieldByName('extension').AsString;
      Fdat_extensionsmap[i].Extension[3] := temps[1];
      Fdat_extensionsmap[i].Extension[2] := temps[2];
      Fdat_extensionsmap[i].Extension[1] := temps[3];
      Fdat_extensionsmap[i].Extension[0] := temps[4];
      Fdat_extensionsmap[i].ExtCount := FQuery.FieldByName('x').AsInteger;
      Inc(i);
      FQuery.Next;
    until FQuery.EOF;
  end;
  FQuery.Close;
end;


function TAccess_OUP_ADB.GetLinksToFile(FileID: Integer): TLinks;
var
  i: Integer;
begin
  SetLength(Result.ByName, 0);
  FQuery.SQL.Text := 'SELECT src_link_offset, src_id FROM linkmap WHERE target_id = ' + IntToStr(FileID) + ' ORDER BY src_id ASC;';
  FQuery.Open;
  SetLength(Result.ByID, FQuery.RecordCount);
  if FQuery.RecordCount > 0 then
  begin
    i := 0;
    repeat
      Result.ByID[i].SrcOffset := FQuery.FieldByName('src_link_offset').AsInteger;
      Result.ByID[i].Destination := FQuery.FieldByName('src_id').AsInteger;
      Inc(i);
      FQuery.Next;
    until FQuery.EOF;
  end;
  FQuery.Close;
end;


function TAccess_OUP_ADB.GetFileInfo(fileid: Integer): TFileInfo;
begin
  if fileid = -1 then
  begin
    Result := inherited GetFileInfo(fileid);
    Exit;
  end;
  if fileid < Self.GetFileCount then
    Result    := Fdat_files[fileid]
  else
    Result.ID := -1;
end;


function TAccess_OUP_ADB.GetFilesList(ext: String; pattern: String;
  NoEmptyFiles: Boolean; SortType: TSortType): TStrings;
var
  i:      Integer;
  list:   TStringList;
  id, name, extension: String;
  fields: TStrings;

  procedure getfields;
  begin
    fields.CommaText := StringReplace(AnsiQuotedStr(list.Strings[i], '"'), ';', '","', [rfReplaceAll]);
    if SortType in [ST_IDAsc, ST_IDDesc] then
    begin
      id := fields.Strings[0];
      name := fields.Strings[1];
      extension := fields.Strings[2];
    end;
    if SortType in [ST_NameAsc, ST_NameDesc] then
    begin
      id := fields.Strings[1];
      name := fields.Strings[0];
      extension := fields.Strings[2];
    end;
    if SortType in [ST_ExtAsc, ST_ExtDesc] then
    begin
      id := fields.Strings[1];
      name := fields.Strings[2];
      extension := fields.Strings[0];
    end;
    if SortType in [ST_ExtNameAsc, ST_ExtNameDesc] then
    begin
      id := fields.Strings[2];
      name := fields.Strings[1];
      extension := fields.Strings[0];
    end;
  end;

begin
  if not (SortType in [ST_ExtNameAsc, ST_ExtNameDesc]) then
  begin
    list := TStringList.Create;
    list.Sorted := True;
    for i := 0 to GetFileCount - 1 do
    begin
      if ((Length(ext) = 0) or (Pos(Fdat_files[i].Extension, ext) > 0)) and
        ((Length(pattern) = 0) or
        (Pos(UpperCase(pattern), UpperCase(Fdat_files[i].Name)) > 0)) then
      begin
        if (NoEmptyFiles = False) or ((Fdat_files[i].FileType and $02) = 0) then
        begin
          id := FormatNumber(Fdat_files[i].ID, 5, '0');
          name := Fdat_files[i].Name;
          extension := Fdat_files[i].Extension;

          case SortType of
            ST_IDAsc, ST_IDDesc:     list.Add(id + ';' + name + ';' + extension);
            ST_NameAsc, ST_NameDesc: list.Add(name + ';' + id + ';' + extension);
            ST_ExtAsc, ST_ExtDesc:   list.Add(extension + ';' + id + ';' + name);
            ST_ExtNameAsc, ST_ExtNameDesc: list.Add(extension + ';' + name + ';' + id);
          end;
        end;
      end;
    end;
    if not Assigned(Result) then
      Result := TStringList.Create;
    if list.Count > 0 then
    begin
      fields := TStringList.Create;
      if SortType in [ST_IDAsc, ST_NameAsc, ST_ExtAsc, ST_ExtNameAsc] then
        for i := 0 to list.Count - 1 do
        begin
          getfields;
          Result.Add(id + '-' + name + '.' + extension);
        end
      else
        for i := list.Count - 1 downto 0 do
        begin
          getfields;
          Result.Add(id + '-' + name + '.' + extension);
        end;
      fields.Free;
    end;
    list.Free;
  end
  else
  begin
    FQuery.SQL.Text := 'SELECT id, name, extension FROM datfiles ' +
        'WHERE Length(name) > 0 ORDER BY extension ASC, name ASC;';
    FQuery.Open;
    if not Assigned(Result) then
      Result := TStringList.Create;
    if FQuery.RecordCount > 0 then
    begin
      FQuery.First;
      repeat
        name := FormatNumber(FQuery.FieldByName('id').AsInteger, 5, '0') +
              '-' + FQuery.FieldByName('name').AsString + '.' +
              FQuery.FieldByName('extension').AsString;
        if SortType = ST_ExtNameAsc then
          Result.Add(name)
        else
          Result.Insert(0, name);
        FQuery.Next;
      until FQuery.EOF;
    end;
    FQuery.Close;
  end;
end;


function TAccess_OUP_ADB.GetFileCount: Integer;
begin
  Result := Length(Fdat_files);
end;


function TAccess_OUP_ADB.GetExtensionsList(ExtListFormat: TExtensionFormat): TStrings;
var
  i: Integer;
begin
  if not Assigned(Result) then
    Result := TStringList.Create;
  if Result is TStringList then
    TStringList(Result).Sorted := True;
  for i := 0 to Length(Fdat_extensionsmap) - 1 do
  begin
    with Fdat_extensionsmap[i] do
    begin
      case ExtListFormat of
        EF_ExtOnly:
          Result.Add(Extension[3] + Extension[2] + Extension[1] + Extension[0]);
        EF_ExtCount:
          Result.Add(Extension[3] + Extension[2] + Extension[1] + Extension[0] +
                ' (' + IntToStr(ExtCount) + ')');
      end;
    end;
  end;
end;


procedure TAccess_OUP_ADB.LoadDatFile(FileID: Integer; var Target: TStream);
var
  mem: TStream;
  streampos: Integer;
begin
  if fileid < GetFileCount then
  begin
    if not Assigned(Target) then
      Target := TMemoryStream.Create;

    streampos := Target.Position;

    FQuery.SQL.Text := 'SELECT data FROM datfiles WHERE id=' + IntToStr(fileid) + ';';
    FQuery.Open;
    if FQuery.RecordCount > 0 then
    begin
      mem := FQuery.CreateBlobStream(FQuery.FieldByName('data'), bmRead);
      mem.Seek(0, soFromBeginning);
      Target.CopyFrom(mem, mem.Size);
      mem.Free;
    end;
    FQuery.Close;

    Target.Seek(streampos, soFromBeginning);
  end;
end;

procedure TAccess_OUP_ADB.UpdateDatFile(FileID: Integer; Src: TStream);
var
  MimeCoder: TStringFormat_MIME64;
  mem: TMemoryStream;
begin
  if fileid < GetFileCount then
  begin
    mimecoder := TStringFormat_MIME64.Create;
    mem := TMemoryStream.Create;
    mem.CopyFrom(Src, Src.Size); 
    FQuery.SQL.Text := 'UPDATE datfiles SET data=MimeToBin("' +
      MimeCoder.StrTo(mem.Memory, mem.Size) + '"), size=' + IntToStr(mem.Size) +
      ' WHERE id=' + IntToStr(fileid) + ';';
    FQuery.ExecSQL;
    mem.Free;
    mimecoder.Free;
  end;
end;


procedure TAccess_OUP_ADB.LoadDatFilePart(FileID, Offset, Size: Integer; var Target: TStream);
var
  streampos: Integer;
  mem: TStream;
begin
  if fileid < GetFileCount then
  begin
    if not Assigned(Target) then
      Target := TMemoryStream.Create;
    streampos := Target.Position;

    FQuery.SQL.Text := 'SELECT data FROM datfiles WHERE id=' + IntToStr(fileid) + ';';
    FQuery.Open;
    if FQuery.RecordCount > 0 then
    begin
      mem := FQuery.CreateBlobStream(FQuery.FieldByName('data'), bmRead);
      mem.Seek(offset, soFromBeginning);
      Target.CopyFrom(mem, size);
      mem.Free;
    end;
    FQuery.Close;
    Target.Seek(streampos, soFromBeginning);
  end;
end;


procedure TAccess_OUP_ADB.UpdateDatFilePart(FileID, Offset, Size: Integer; Src: TStream);
var
  MimeCoder: TStringFormat_MIME64;
  mem:  TMemoryStream;
begin
  if fileid < GetFileCount then
  begin
    mem := nil;
    LoadDatFile(fileid, TStream(mem));
    mem.Seek(Offset, soFromBeginning);
    mem.CopyFrom(Src, Size);
    mem.Seek(0, soFromBeginning);
    mimecoder := TStringFormat_MIME64.Create;
    FQuery.SQL.Text := 'UPDATE datfiles SET data=MimeToBin("' +
      MimeCoder.StrTo(mem.Memory, mem.Size) + '") WHERE id=' + IntToStr(fileid) + ';';
    FQuery.ExecSQL;
    mem.Free;
    mimecoder.Free;
  end;
end;


function TAccess_OUP_ADB.GetDatLink(FileID, DatOffset: Integer): TDatLink;
begin
  Result := DatLinksManager.GetDatLink(FConnectionID, FileID, DatOffset);
  FQuery.SQL.Text := 'SELECT target_id FROM linkmap WHERE src_id = ' + IntToStr(FileID) + ' and src_link_offset = ' + IntToStr(DatOffset) + ';';
  FQuery.Open;
  if FQuery.RecordCount > 0 then
    Result.DestID := FQuery.FieldByName('target_id').AsInteger;
  FQuery.Close;
end;


function TAccess_OUP_ADB.GetDatLinks(FileID: Integer): TDatLinkList;
var
  i: Integer;
  SrcOffset, DestID: Integer;
begin
  Result := DatLinksManager.GetDatLinks(FConnectionID, FileID);
  if Length(Result) > 0 then
  begin
    FQuery.SQL.Text := 'SELECT src_link_offset, target_id FROM linkmap WHERE src_id = ' + IntToStr(FileID) + ' ORDER BY src_link_offset ASC;';
    FQuery.Open;
    if FQuery.RecordCount > 0 then
    begin
      repeat
        SrcOffset := FQuery.FieldByName('src_link_offset').AsInteger;
        DestID := FQuery.FieldByName('target_id').AsInteger;
        for i := 0 to High(Result) do
          if Result[i].SrcOffset = SrcOffset then
            Break;
        if i < Length(Result) then
          Result[i].DestID := DestID
        else
          Result[i].DestID := -1;
        FQuery.Next;
      until FQuery.EOF;
    end;
    FQuery.Close;
  end;
end;


function TAccess_OUP_ADB.GetRawList(FileID: Integer): TRawDataList;
var
  i: Integer;
begin
  SetLength(Result, 0);
  FQuery.SQL.Text := 'SELECT [src_link_offset],[size],[sep] FROM rawmap WHERE [src_id]=' +
    IntToStr(fileid) + ' ORDER BY src_link_offset ASC;';
  FQuery.Open;
  if FQuery.RecordCount > 0 then
  begin
    FQuery.First;
    SetLength(Result, FQuery.RecordCount);
    i := 0;
    repeat
      Result[i].SrcID     := fileid;
      Result[i].SrcOffset := FQuery.FieldByName('src_link_offset').AsInteger;
      Result[i].RawAddr   := 0;
      Result[i].RawSize   := FQuery.FieldByName('size').AsInteger;
      Result[i].LocSep    := FQuery.FieldByName('sep').AsBoolean;
      Inc(i);
      FQuery.Next;
    until FQuery.EOF;
  end;
  FQuery.Close;
end;


function TAccess_OUP_ADB.GetRawInfo(FileID, DatOffset: Integer): TRawDataInfo;
var
  i: Integer;
  rawlist: TRawDataList;
begin
  rawlist := GetRawList(FileID);
  if Length(rawlist) > 0 then
  begin
    for i := 0 to High(rawlist) do
      if rawlist[i].SrcOffset = DatOffset then
        Break;
    if i < Length(rawlist) then
      Result := rawlist[i]
    else begin
      Result.SrcID     := -1;
      Result.SrcOffset := -1;
      Result.RawAddr   := -1;
      Result.RawSize   := -1;
    end;
  end;
end;


procedure TAccess_OUP_ADB.LoadRawFile(FileID, DatOffset: Integer; var Target: TStream);
var
  mem: TStream;
  streampos: Integer;
begin
  if fileid < GetFileCount then
  begin
    if not Assigned(Target) then
      Target := TMemoryStream.Create;
    streampos := Target.Position;
    FQuery.SQL.Text := 'SELECT data FROM rawmap WHERE (src_id=' +
      IntToStr(FileID) + ') AND (src_link_offset=' + IntToStr(DatOffset) + ');';
    FQuery.Open;
    if FQuery.RecordCount > 0 then
    begin
      mem := FQuery.CreateBlobStream(FQuery.FieldByName('data'), bmRead);
      mem.Seek(0, soFromBeginning);
      Target.CopyFrom(mem, mem.Size);
      mem.Free;
    end;
    FQuery.Close;
    Target.Seek(streampos, soFromBeginning);
  end;
end;


procedure TAccess_OUP_ADB.UpdateRawFile(FileID, DatOffset: Integer; Src: TStream);
var
  MimeCoder: TStringFormat_MIME64;
  mem: TMemoryStream;
begin
  if fileid < GetFileCount then
  begin
    mimecoder := TStringFormat_MIME64.Create;
    mem := TMemoryStream.Create;
    mem.CopyFrom(Src, Src.Size);
    mem.Seek(0, soFromBeginning);
    FQuery.SQL.Text := 'UPDATE rawmap SET data=MimeToBin("' + MimeCoder.StrTo(
      mem.Memory, mem.Size) + '") WHERE (src_id=' + IntToStr(FileID) +
      ') AND (src_link_offset=' + IntToStr(DatOffset) + ');';
    FQuery.ExecSQL;
    mem.Free;
    mimecoder.Free;
  end;
end;


procedure TAccess_OUP_ADB.LoadRawFilePart(FileID, DatOffset, Offset, Size: Integer; var Target: TStream);
var
  mem:  TMemoryStream;
  streampos: Integer;
begin
  if fileid < GetFileCount then
  begin
    if not Assigned(Target) then
      Target := TMemoryStream.Create;
    streampos := Target.Position;
    mem := nil;
    LoadRawFile(FileID, DatOffset, TStream(mem));
    mem.Seek(Offset, soFromBeginning);
    Target.CopyFrom(mem, Size);
    mem.Free;
    Target.Seek(streampos, soFromBeginning);
  end;
end;


procedure TAccess_OUP_ADB.UpdateRawFilePart(FileID, DatOffset, Offset, Size: Integer; Src: TStream);
var
  MimeCoder: TStringFormat_MIME64;
  mem:  TMemoryStream;
begin
  if fileid < GetFileCount then
  begin
    mem := nil;
    LoadRawFile(fileid, offset, TStream(mem));
    mem.Seek(offset, soFromBeginning);
    mem.CopyFrom(Src, Size);
    mem.Seek(0, soFromBeginning);
    mimecoder := TStringFormat_MIME64.Create;
    FQuery.SQL.Text := 'UPDATE rawmap SET data=MimeToBin("' + MimeCoder.StrTo(
      mem.Memory, mem.Size) + '") WHERE (src_id=' + IntToStr(fileid) +
      ') AND (src_link_offset=' + IntToStr(DatOffset) + ');';
    FQuery.ExecSQL;
    mem.Free;
    mimecoder.Free;
  end;
end;


end.
Revision:	157
Committed:	Sun Apr 1 23:47:18 2007 UTC (18 years, 6 months ago) by alloc
Content type:	text/x-pascal
File size:	18946 byte(s)
Log Message:
#	Content
1	unit Access_OUP_ADB;
2	interface
3
4	uses DataAccess, ABSMain, TypeDefs, Classes;
5
6	type
7	TAccess_OUP_ADB = class(TDataAccess)
8	private
9	FDatabase: TABSDatabase;
10	FQuery: TABSQuery;
11	Fdat_files: TFiles;
12	Fdat_extensionsmap: TExtensionsMap;
13	protected
14	public
15	constructor Create(DBFilename: String; ConnectionID: Integer; var Msg: TStatusMessages); override;
16	procedure Close; override;
17
18	procedure UpdateListCache;
19
20	function GetLinksToFile(FileID: Integer): TLinks;
21
22	function GetFileInfo(FileID: Integer): TFileInfo; override;
23	function GetFilesList(Ext: String; Pattern: String;
24	NoEmptyFiles: Boolean; SortType: TSortType): TStrings; override;
25	function GetFileCount: Integer; override;
26	function GetExtensionsList(ExtListFormat: TExtensionFormat): TStrings; override;
27
28	procedure LoadDatFile(FileID: Integer; var Target: TStream); overload; override;
29	procedure UpdateDatFile(FileID: Integer; Src: TStream); overload; override;
30	procedure LoadDatFilePart(FileID, Offset, Size: Integer; var Target: TStream); overload; override;
31	procedure UpdateDatFilePart(FileID, Offset, Size: Integer; Src: TStream); overload; override;
32
33	function GetDatLinks(FileID: Integer): TDatLinkList; override;
34	function GetDatLink(FileID, DatOffset: Integer): TDatLink; override;
35	function GetRawList(FileID: Integer): TRawDataList; override;
36	function GetRawInfo(FileID, DatOffset: Integer): TRawDataInfo; override;
37
38	procedure LoadRawFile(FileID, DatOffset: Integer; var Target: TStream); overload; override;
39	procedure UpdateRawFile(FileID, DatOffset: Integer; Src: TStream); overload; override;
40	procedure LoadRawFilePart(FileID, DatOffset, Offset, Size: Integer; var Target: TStream); overload; override;
41	procedure UpdateRawFilePart(FileID, DatOffset, Offset, Size: Integer; Src: TStream); overload; override;
42	published
43	end;
44
45
46	implementation
47
48	uses
49	SysUtils, Data, Functions, ABSDecUtil, DB, DatLinks, StrUtils;
50
51
52	(*
53	================================================================================
54	Implementation of TOniDataADB
55	*)
56
57
58	constructor TAccess_OUP_ADB.Create(DBFilename: String; ConnectionID: Integer; var Msg: TStatusMessages);
59	begin
60	Msg := SM_UnknownError;
61	if not FileExists(DBFilename) then
62	begin
63	Msg := SM_FileNotFound;
64	Exit;
65	end;
66	FFileName := DBFilename;
67
68	FDatabase := TABSDatabase.Create(nil);
69	FDatabase.Exclusive := True;
70	FDatabase.MultiUser := False;
71	FDatabase.DatabaseName := 'OLDBcon' + IntToStr(ConnectionID);
72	FDatabase.DatabaseFileName := DBFilename;
73	FDatabase.Open;
74	FQuery := TABSQuery.Create(FDatabase);
75	FQuery.DisableControls;
76	FQuery.RequestLive := False;
77	FQuery.DatabaseName := 'OLDBcon' + IntToStr(ConnectionID);
78	FQuery.SQL.Text := 'SELECT [name],[value] FROM globals ORDER BY [name] ASC';
79	FQuery.Open;
80	FQuery.First;
81	repeat
82	if FQuery.FieldByName('name').AsString = 'dbversion' then
83	begin
84	if FQuery.FieldByName('value').AsString <> DBversion then
85	begin
86	Msg := SM_IncompatibleDBVersion;
87	FQuery.Close;
88	Exit;
89	end;
90	end;
91	if FQuery.FieldByName('name').AsString = 'lvl' then
92	FLevelNumber := StrToInt(FQuery.FieldByName('value').AsString);
93	if FQuery.FieldByName('name').AsString = 'DataOS' then
94	begin
95	if FQuery.FieldByName('value').AsString = 'WIN' then
96	FDataOS := DOS_WIN
97	else if FQuery.FieldByName('value').AsString = 'WINDEMO' then
98	FDataOS := DOS_WINDEMO
99	else if FQuery.FieldByName('value').AsString = 'MAC' then
100	FDataOS := DOS_MAC
101	else if FQuery.FieldByName('value').AsString = 'MACBETA' then
102	FDataOS := DOS_MACBETA;
103	end;
104	FQuery.Next;
105	until FQuery.EOF;
106	FQuery.Close;
107
108	Msg := SM_OK;
109	FBackend := DB_ADB;
110
111	FConnectionID := ConnectionID;
112	FChangeRights := [CR_EditDat, CR_EditRaw, CR_ResizeDat, CR_ResizeRaw];
113
114	UpdateListCache;
115	end;
116
117
118
119
120	procedure TAccess_OUP_ADB.Close;
121	begin
122	FQuery.Free;
123	FDatabase.Close;
124	FDatabase.Free;
125	Self.Free;
126	end;
127
128
129
130	procedure TAccess_OUP_ADB.UpdateListCache;
131	var
132	i: Integer;
133	temps: String;
134	begin
135	FQuery.SQL.Text := 'SELECT id,name,extension,[size],contenttype FROM datfiles ORDER BY id ASC;';
136	FQuery.Open;
137	SetLength(Fdat_files, FQuery.RecordCount);
138	if FQuery.RecordCount > 0 then
139	begin
140	FQuery.First;
141	i := 0;
142	repeat
143	Fdat_files[i].ID := FQuery.FieldByName('id').AsInteger;
144	Fdat_files[i].Name := FQuery.FieldByName('name').AsString;
145	Fdat_files[i].Extension := FQuery.FieldByName('extension').AsString;
146	Fdat_files[i].Size := FQuery.FieldByName('size').AsInteger;
147	Fdat_files[i].FileType := StrToInt('$'+FQuery.FieldByName('contenttype').AsString);
148	Fdat_files[i].DatAddr := 0;
149	Inc(i);
150	FQuery.Next;
151	until FQuery.EOF;
152	end;
153	FQuery.Close;
154
155	FQuery.SQL.Text :=
156	'SELECT extension,count(extension) AS x FROM datfiles GROUP BY extension ORDER BY extension ASC;';
157	FQuery.Open;
158	SetLength(Fdat_extensionsmap, FQuery.RecordCount);
159	if FQuery.RecordCount > 0 then
160	begin
161	i := 0;
162	repeat
163	temps := FQuery.FieldByName('extension').AsString;
164	Fdat_extensionsmap[i].Extension[3] := temps[1];
165	Fdat_extensionsmap[i].Extension[2] := temps[2];
166	Fdat_extensionsmap[i].Extension[1] := temps[3];
167	Fdat_extensionsmap[i].Extension[0] := temps[4];
168	Fdat_extensionsmap[i].ExtCount := FQuery.FieldByName('x').AsInteger;
169	Inc(i);
170	FQuery.Next;
171	until FQuery.EOF;
172	end;
173	FQuery.Close;
174	end;
175
176
177
178	function TAccess_OUP_ADB.GetLinksToFile(FileID: Integer): TLinks;
179	var
180	i: Integer;
181	begin
182	SetLength(Result.ByName, 0);
183	FQuery.SQL.Text := 'SELECT src_link_offset, src_id FROM linkmap WHERE target_id = ' + IntToStr(FileID) + ' ORDER BY src_id ASC;';
184	FQuery.Open;
185	SetLength(Result.ByID, FQuery.RecordCount);
186	if FQuery.RecordCount > 0 then
187	begin
188	i := 0;
189	repeat
190	Result.ByID[i].SrcOffset := FQuery.FieldByName('src_link_offset').AsInteger;
191	Result.ByID[i].Destination := FQuery.FieldByName('src_id').AsInteger;
192	Inc(i);
193	FQuery.Next;
194	until FQuery.EOF;
195	end;
196	FQuery.Close;
197	end;
198
199
200
201	function TAccess_OUP_ADB.GetFileInfo(fileid: Integer): TFileInfo;
202	begin
203	if fileid = -1 then
204	begin
205	Result := inherited GetFileInfo(fileid);
206	Exit;
207	end;
208	if fileid < Self.GetFileCount then
209	Result := Fdat_files[fileid]
210	else
211	Result.ID := -1;
212	end;
213
214
215
216	function TAccess_OUP_ADB.GetFilesList(ext: String; pattern: String;
217	NoEmptyFiles: Boolean; SortType: TSortType): TStrings;
218	var
219	i: Integer;
220	list: TStringList;
221	id, name, extension: String;
222	fields: TStrings;
223
224	procedure getfields;
225	begin
226	fields.CommaText := StringReplace(AnsiQuotedStr(list.Strings[i], '"'), ';', '","', [rfReplaceAll]);
227	if SortType in [ST_IDAsc, ST_IDDesc] then
228	begin
229	id := fields.Strings[0];
230	name := fields.Strings[1];
231	extension := fields.Strings[2];
232	end;
233	if SortType in [ST_NameAsc, ST_NameDesc] then
234	begin
235	id := fields.Strings[1];
236	name := fields.Strings[0];
237	extension := fields.Strings[2];
238	end;
239	if SortType in [ST_ExtAsc, ST_ExtDesc] then
240	begin
241	id := fields.Strings[1];
242	name := fields.Strings[2];
243	extension := fields.Strings[0];
244	end;
245	if SortType in [ST_ExtNameAsc, ST_ExtNameDesc] then
246	begin
247	id := fields.Strings[2];
248	name := fields.Strings[1];
249	extension := fields.Strings[0];
250	end;
251	end;
252
253	begin
254	if not (SortType in [ST_ExtNameAsc, ST_ExtNameDesc]) then
255	begin
256	list := TStringList.Create;
257	list.Sorted := True;
258	for i := 0 to GetFileCount - 1 do
259	begin
260	if ((Length(ext) = 0) or (Pos(Fdat_files[i].Extension, ext) > 0)) and
261	((Length(pattern) = 0) or
262	(Pos(UpperCase(pattern), UpperCase(Fdat_files[i].Name)) > 0)) then
263	begin
264	if (NoEmptyFiles = False) or ((Fdat_files[i].FileType and $02) = 0) then
265	begin
266	id := FormatNumber(Fdat_files[i].ID, 5, '0');
267	name := Fdat_files[i].Name;
268	extension := Fdat_files[i].Extension;
269
270	case SortType of
271	ST_IDAsc, ST_IDDesc: list.Add(id + ';' + name + ';' + extension);
272	ST_NameAsc, ST_NameDesc: list.Add(name + ';' + id + ';' + extension);
273	ST_ExtAsc, ST_ExtDesc: list.Add(extension + ';' + id + ';' + name);
274	ST_ExtNameAsc, ST_ExtNameDesc: list.Add(extension + ';' + name + ';' + id);
275	end;
276	end;
277	end;
278	end;
279	if not Assigned(Result) then
280	Result := TStringList.Create;
281	if list.Count > 0 then
282	begin
283	fields := TStringList.Create;
284	if SortType in [ST_IDAsc, ST_NameAsc, ST_ExtAsc, ST_ExtNameAsc] then
285	for i := 0 to list.Count - 1 do
286	begin
287	getfields;
288	Result.Add(id + '-' + name + '.' + extension);
289	end
290	else
291	for i := list.Count - 1 downto 0 do
292	begin
293	getfields;
294	Result.Add(id + '-' + name + '.' + extension);
295	end;
296	fields.Free;
297	end;
298	list.Free;
299	end
300	else
301	begin
302	FQuery.SQL.Text := 'SELECT id, name, extension FROM datfiles ' +
303	'WHERE Length(name) > 0 ORDER BY extension ASC, name ASC;';
304	FQuery.Open;
305	if not Assigned(Result) then
306	Result := TStringList.Create;
307	if FQuery.RecordCount > 0 then
308	begin
309	FQuery.First;
310	repeat
311	name := FormatNumber(FQuery.FieldByName('id').AsInteger, 5, '0') +
312	'-' + FQuery.FieldByName('name').AsString + '.' +
313	FQuery.FieldByName('extension').AsString;
314	if SortType = ST_ExtNameAsc then
315	Result.Add(name)
316	else
317	Result.Insert(0, name);
318	FQuery.Next;
319	until FQuery.EOF;
320	end;
321	FQuery.Close;
322	end;
323	end;
324
325
326
327
328	function TAccess_OUP_ADB.GetFileCount: Integer;
329	begin
330	Result := Length(Fdat_files);
331	end;
332
333
334	function TAccess_OUP_ADB.GetExtensionsList(ExtListFormat: TExtensionFormat): TStrings;
335	var
336	i: Integer;
337	begin
338	if not Assigned(Result) then
339	Result := TStringList.Create;
340	if Result is TStringList then
341	TStringList(Result).Sorted := True;
342	for i := 0 to Length(Fdat_extensionsmap) - 1 do
343	begin
344	with Fdat_extensionsmap[i] do
345	begin
346	case ExtListFormat of
347	EF_ExtOnly:
348	Result.Add(Extension[3] + Extension[2] + Extension[1] + Extension[0]);
349	EF_ExtCount:
350	Result.Add(Extension[3] + Extension[2] + Extension[1] + Extension[0] +
351	' (' + IntToStr(ExtCount) + ')');
352	end;
353	end;
354	end;
355	end;
356
357
358	procedure TAccess_OUP_ADB.LoadDatFile(FileID: Integer; var Target: TStream);
359	var
360	mem: TStream;
361	streampos: Integer;
362	begin
363	if fileid < GetFileCount then
364	begin
365	if not Assigned(Target) then
366	Target := TMemoryStream.Create;
367
368	streampos := Target.Position;
369
370	FQuery.SQL.Text := 'SELECT data FROM datfiles WHERE id=' + IntToStr(fileid) + ';';
371	FQuery.Open;
372	if FQuery.RecordCount > 0 then
373	begin
374	mem := FQuery.CreateBlobStream(FQuery.FieldByName('data'), bmRead);
375	mem.Seek(0, soFromBeginning);
376	Target.CopyFrom(mem, mem.Size);
377	mem.Free;
378	end;
379	FQuery.Close;
380
381	Target.Seek(streampos, soFromBeginning);
382	end;
383	end;
384
385	procedure TAccess_OUP_ADB.UpdateDatFile(FileID: Integer; Src: TStream);
386	var
387	MimeCoder: TStringFormat_MIME64;
388	mem: TMemoryStream;
389	begin
390	if fileid < GetFileCount then
391	begin
392	mimecoder := TStringFormat_MIME64.Create;
393	mem := TMemoryStream.Create;
394	mem.CopyFrom(Src, Src.Size);
395	FQuery.SQL.Text := 'UPDATE datfiles SET data=MimeToBin("' +
396	MimeCoder.StrTo(mem.Memory, mem.Size) + '"), size=' + IntToStr(mem.Size) +
397	' WHERE id=' + IntToStr(fileid) + ';';
398	FQuery.ExecSQL;
399	mem.Free;
400	mimecoder.Free;
401	end;
402	end;
403
404
405
406	procedure TAccess_OUP_ADB.LoadDatFilePart(FileID, Offset, Size: Integer; var Target: TStream);
407	var
408	streampos: Integer;
409	mem: TStream;
410	begin
411	if fileid < GetFileCount then
412	begin
413	if not Assigned(Target) then
414	Target := TMemoryStream.Create;
415	streampos := Target.Position;
416
417	FQuery.SQL.Text := 'SELECT data FROM datfiles WHERE id=' + IntToStr(fileid) + ';';
418	FQuery.Open;
419	if FQuery.RecordCount > 0 then
420	begin
421	mem := FQuery.CreateBlobStream(FQuery.FieldByName('data'), bmRead);
422	mem.Seek(offset, soFromBeginning);
423	Target.CopyFrom(mem, size);
424	mem.Free;
425	end;
426	FQuery.Close;
427	Target.Seek(streampos, soFromBeginning);
428	end;
429	end;
430
431
432
433	procedure TAccess_OUP_ADB.UpdateDatFilePart(FileID, Offset, Size: Integer; Src: TStream);
434	var
435	MimeCoder: TStringFormat_MIME64;
436	mem: TMemoryStream;
437	begin
438	if fileid < GetFileCount then
439	begin
440	mem := nil;
441	LoadDatFile(fileid, TStream(mem));
442	mem.Seek(Offset, soFromBeginning);
443	mem.CopyFrom(Src, Size);
444	mem.Seek(0, soFromBeginning);
445	mimecoder := TStringFormat_MIME64.Create;
446	FQuery.SQL.Text := 'UPDATE datfiles SET data=MimeToBin("' +
447	MimeCoder.StrTo(mem.Memory, mem.Size) + '") WHERE id=' + IntToStr(fileid) + ';';
448	FQuery.ExecSQL;
449	mem.Free;
450	mimecoder.Free;
451	end;
452	end;
453
454
455
456	function TAccess_OUP_ADB.GetDatLink(FileID, DatOffset: Integer): TDatLink;
457	begin
458	Result := DatLinksManager.GetDatLink(FConnectionID, FileID, DatOffset);
459	FQuery.SQL.Text := 'SELECT target_id FROM linkmap WHERE src_id = ' + IntToStr(FileID) + ' and src_link_offset = ' + IntToStr(DatOffset) + ';';
460	FQuery.Open;
461	if FQuery.RecordCount > 0 then
462	Result.DestID := FQuery.FieldByName('target_id').AsInteger;
463	FQuery.Close;
464	end;
465
466
467	function TAccess_OUP_ADB.GetDatLinks(FileID: Integer): TDatLinkList;
468	var
469	i: Integer;
470	SrcOffset, DestID: Integer;
471	begin
472	Result := DatLinksManager.GetDatLinks(FConnectionID, FileID);
473	if Length(Result) > 0 then
474	begin
475	FQuery.SQL.Text := 'SELECT src_link_offset, target_id FROM linkmap WHERE src_id = ' + IntToStr(FileID) + ' ORDER BY src_link_offset ASC;';
476	FQuery.Open;
477	if FQuery.RecordCount > 0 then
478	begin
479	repeat
480	SrcOffset := FQuery.FieldByName('src_link_offset').AsInteger;
481	DestID := FQuery.FieldByName('target_id').AsInteger;
482	for i := 0 to High(Result) do
483	if Result[i].SrcOffset = SrcOffset then
484	Break;
485	if i < Length(Result) then
486	Result[i].DestID := DestID
487	else
488	Result[i].DestID := -1;
489	FQuery.Next;
490	until FQuery.EOF;
491	end;
492	FQuery.Close;
493	end;
494	end;
495
496
497	function TAccess_OUP_ADB.GetRawList(FileID: Integer): TRawDataList;
498	var
499	i: Integer;
500	begin
501	SetLength(Result, 0);
502	FQuery.SQL.Text := 'SELECT [src_link_offset],[size],[sep] FROM rawmap WHERE [src_id]=' +
503	IntToStr(fileid) + ' ORDER BY src_link_offset ASC;';
504	FQuery.Open;
505	if FQuery.RecordCount > 0 then
506	begin
507	FQuery.First;
508	SetLength(Result, FQuery.RecordCount);
509	i := 0;
510	repeat
511	Result[i].SrcID := fileid;
512	Result[i].SrcOffset := FQuery.FieldByName('src_link_offset').AsInteger;
513	Result[i].RawAddr := 0;
514	Result[i].RawSize := FQuery.FieldByName('size').AsInteger;
515	Result[i].LocSep := FQuery.FieldByName('sep').AsBoolean;
516	Inc(i);
517	FQuery.Next;
518	until FQuery.EOF;
519	end;
520	FQuery.Close;
521	end;
522
523
524	function TAccess_OUP_ADB.GetRawInfo(FileID, DatOffset: Integer): TRawDataInfo;
525	var
526	i: Integer;
527	rawlist: TRawDataList;
528	begin
529	rawlist := GetRawList(FileID);
530	if Length(rawlist) > 0 then
531	begin
532	for i := 0 to High(rawlist) do
533	if rawlist[i].SrcOffset = DatOffset then
534	Break;
535	if i < Length(rawlist) then
536	Result := rawlist[i]
537	else begin
538	Result.SrcID := -1;
539	Result.SrcOffset := -1;
540	Result.RawAddr := -1;
541	Result.RawSize := -1;
542	end;
543	end;
544	end;
545
546
547
548	procedure TAccess_OUP_ADB.LoadRawFile(FileID, DatOffset: Integer; var Target: TStream);
549	var
550	mem: TStream;
551	streampos: Integer;
552	begin
553	if fileid < GetFileCount then
554	begin
555	if not Assigned(Target) then
556	Target := TMemoryStream.Create;
557	streampos := Target.Position;
558	FQuery.SQL.Text := 'SELECT data FROM rawmap WHERE (src_id=' +
559	IntToStr(FileID) + ') AND (src_link_offset=' + IntToStr(DatOffset) + ');';
560	FQuery.Open;
561	if FQuery.RecordCount > 0 then
562	begin
563	mem := FQuery.CreateBlobStream(FQuery.FieldByName('data'), bmRead);
564	mem.Seek(0, soFromBeginning);
565	Target.CopyFrom(mem, mem.Size);
566	mem.Free;
567	end;
568	FQuery.Close;
569	Target.Seek(streampos, soFromBeginning);
570	end;
571	end;
572
573
574	procedure TAccess_OUP_ADB.UpdateRawFile(FileID, DatOffset: Integer; Src: TStream);
575	var
576	MimeCoder: TStringFormat_MIME64;
577	mem: TMemoryStream;
578	begin
579	if fileid < GetFileCount then
580	begin
581	mimecoder := TStringFormat_MIME64.Create;
582	mem := TMemoryStream.Create;
583	mem.CopyFrom(Src, Src.Size);
584	mem.Seek(0, soFromBeginning);
585	FQuery.SQL.Text := 'UPDATE rawmap SET data=MimeToBin("' + MimeCoder.StrTo(
586	mem.Memory, mem.Size) + '") WHERE (src_id=' + IntToStr(FileID) +
587	') AND (src_link_offset=' + IntToStr(DatOffset) + ');';
588	FQuery.ExecSQL;
589	mem.Free;
590	mimecoder.Free;
591	end;
592	end;
593
594
595
596
597	procedure TAccess_OUP_ADB.LoadRawFilePart(FileID, DatOffset, Offset, Size: Integer; var Target: TStream);
598	var
599	mem: TMemoryStream;
600	streampos: Integer;
601	begin
602	if fileid < GetFileCount then
603	begin
604	if not Assigned(Target) then
605	Target := TMemoryStream.Create;
606	streampos := Target.Position;
607	mem := nil;
608	LoadRawFile(FileID, DatOffset, TStream(mem));
609	mem.Seek(Offset, soFromBeginning);
610	Target.CopyFrom(mem, Size);
611	mem.Free;
612	Target.Seek(streampos, soFromBeginning);
613	end;
614	end;
615
616
617
618
619	procedure TAccess_OUP_ADB.UpdateRawFilePart(FileID, DatOffset, Offset, Size: Integer; Src: TStream);
620	var
621	MimeCoder: TStringFormat_MIME64;
622	mem: TMemoryStream;
623	begin
624	if fileid < GetFileCount then
625	begin
626	mem := nil;
627	LoadRawFile(fileid, offset, TStream(mem));
628	mem.Seek(offset, soFromBeginning);
629	mem.CopyFrom(Src, Size);
630	mem.Seek(0, soFromBeginning);
631	mimecoder := TStringFormat_MIME64.Create;
632	FQuery.SQL.Text := 'UPDATE rawmap SET data=MimeToBin("' + MimeCoder.StrTo(
633	mem.Memory, mem.Size) + '") WHERE (src_id=' + IntToStr(fileid) +
634	') AND (src_link_offset=' + IntToStr(DatOffset) + ');';
635	FQuery.ExecSQL;
636	mem.Free;
637	mimecoder.Free;
638	end;
639	end;
640
641
642
643
644	end.