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 CompareItems(List: TStringList; I1, I2: Integer): Integer;
  var
    fin: Boolean;
    pos: Integer;
    s1, s2: String;
  begin
    fin := False;
    s1 := MidStr(List[I1], 1, PosEx(';', List[I1], 6) - 1);
    s2 := MidStr(List[I2], 1, PosEx(';', List[I2], 6) - 1);
    pos := 1;
    Result := 0;
    repeat
      if Ord(s1[pos]) < Ord(s2[pos]) then
      begin
        Result := -1;
        fin := True;
      end
      else if Ord(s1[pos]) > Ord(s2[pos]) then
      begin
        Result := 1;
        fin := True;
      end;
      Inc(pos);
    until fin or (pos > Length(s1)) or (pos > Length(s2));

    if not fin then
    begin
      if pos > Length(s1) then
        Result := -1
      else
        Result := 1;
    end;
  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
  list := TStringList.Create;
  if SortType in [ST_ExtNameAsc, ST_ExtNameDesc] then
    list.Sorted := False
  else
    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 SortType in [ST_ExtNameAsc, ST_ExtNameDesc] then
    list.CustomSort(CompareItems);
  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;


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:	156
Committed:	Sun Apr 1 22:49:17 2007 UTC (18 years, 7 months ago) by alloc
Content type:	text/x-pascal
File size:	19019 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 CompareItems(List: TStringList; I1, I2: Integer): Integer;
217	var
218	fin: Boolean;
219	pos: Integer;
220	s1, s2: String;
221	begin
222	fin := False;
223	s1 := MidStr(List[I1], 1, PosEx(';', List[I1], 6) - 1);
224	s2 := MidStr(List[I2], 1, PosEx(';', List[I2], 6) - 1);
225	pos := 1;
226	Result := 0;
227	repeat
228	if Ord(s1[pos]) < Ord(s2[pos]) then
229	begin
230	Result := -1;
231	fin := True;
232	end
233	else if Ord(s1[pos]) > Ord(s2[pos]) then
234	begin
235	Result := 1;
236	fin := True;
237	end;
238	Inc(pos);
239	until fin or (pos > Length(s1)) or (pos > Length(s2));
240
241	if not fin then
242	begin
243	if pos > Length(s1) then
244	Result := -1
245	else
246	Result := 1;
247	end;
248	end;
249
250	function TAccess_OUP_ADB.GetFilesList(ext: String; pattern: String;
251	NoEmptyFiles: Boolean; SortType: TSortType): TStrings;
252	var
253	i: Integer;
254	list: TStringList;
255	id, name, extension: String;
256	fields: TStrings;
257
258	procedure getfields;
259	begin
260	fields.CommaText := StringReplace(AnsiQuotedStr(list.Strings[i], '"'), ';', '","', [rfReplaceAll]);
261	if SortType in [ST_IDAsc, ST_IDDesc] then
262	begin
263	id := fields.Strings[0];
264	name := fields.Strings[1];
265	extension := fields.Strings[2];
266	end;
267	if SortType in [ST_NameAsc, ST_NameDesc] then
268	begin
269	id := fields.Strings[1];
270	name := fields.Strings[0];
271	extension := fields.Strings[2];
272	end;
273	if SortType in [ST_ExtAsc, ST_ExtDesc] then
274	begin
275	id := fields.Strings[1];
276	name := fields.Strings[2];
277	extension := fields.Strings[0];
278	end;
279	if SortType in [ST_ExtNameAsc, ST_ExtNameDesc] then
280	begin
281	id := fields.Strings[2];
282	name := fields.Strings[1];
283	extension := fields.Strings[0];
284	end;
285	end;
286
287	begin
288	list := TStringList.Create;
289	if SortType in [ST_ExtNameAsc, ST_ExtNameDesc] then
290	list.Sorted := False
291	else
292	list.Sorted := True;
293	for i := 0 to GetFileCount - 1 do
294	begin
295	if ((Length(ext) = 0) or (Pos(Fdat_files[i].Extension, ext) > 0)) and
296	((Length(pattern) = 0) or
297	(Pos(UpperCase(pattern), UpperCase(Fdat_files[i].Name)) > 0)) then
298	begin
299	if (NoEmptyFiles = False) or ((Fdat_files[i].FileType and $02) = 0) then
300	begin
301	id := FormatNumber(Fdat_files[i].ID, 5, '0');
302	name := Fdat_files[i].Name;
303	extension := Fdat_files[i].Extension;
304
305	case SortType of
306	ST_IDAsc, ST_IDDesc: list.Add(id + ';' + name + ';' + extension);
307	ST_NameAsc, ST_NameDesc: list.Add(name + ';' + id + ';' + extension);
308	ST_ExtAsc, ST_ExtDesc: list.Add(extension + ';' + id + ';' + name);
309	ST_ExtNameAsc, ST_ExtNameDesc: list.Add(extension + ';' + name + ';' + id);
310	end;
311	end;
312	end;
313	end;
314	if SortType in [ST_ExtNameAsc, ST_ExtNameDesc] then
315	list.CustomSort(CompareItems);
316	if not Assigned(Result) then
317	Result := TStringList.Create;
318	if list.Count > 0 then
319	begin
320	fields := TStringList.Create;
321	if SortType in [ST_IDAsc, ST_NameAsc, ST_ExtAsc, ST_ExtNameAsc] then
322	for i := 0 to list.Count - 1 do
323	begin
324	getfields;
325	Result.Add(id + '-' + name + '.' + extension);
326	end
327	else
328	for i := list.Count - 1 downto 0 do
329	begin
330	getfields;
331	Result.Add(id + '-' + name + '.' + extension);
332	end;
333	fields.Free;
334	end;
335	list.Free;
336	end;
337
338
339
340
341	function TAccess_OUP_ADB.GetFileCount: Integer;
342	begin
343	Result := Length(Fdat_files);
344	end;
345
346
347	function TAccess_OUP_ADB.GetExtensionsList(ExtListFormat: TExtensionFormat): TStrings;
348	var
349	i: Integer;
350	begin
351	if not Assigned(Result) then
352	Result := TStringList.Create;
353	if Result is TStringList then
354	TStringList(Result).Sorted := True;
355	for i := 0 to Length(Fdat_extensionsmap) - 1 do
356	begin
357	with Fdat_extensionsmap[i] do
358	begin
359	case ExtListFormat of
360	EF_ExtOnly:
361	Result.Add(Extension[3] + Extension[2] + Extension[1] + Extension[0]);
362	EF_ExtCount:
363	Result.Add(Extension[3] + Extension[2] + Extension[1] + Extension[0] +
364	' (' + IntToStr(ExtCount) + ')');
365	end;
366	end;
367	end;
368	end;
369
370
371	procedure TAccess_OUP_ADB.LoadDatFile(FileID: Integer; var Target: TStream);
372	var
373	mem: TStream;
374	streampos: Integer;
375	begin
376	if fileid < GetFileCount then
377	begin
378	if not Assigned(Target) then
379	Target := TMemoryStream.Create;
380
381	streampos := Target.Position;
382
383	FQuery.SQL.Text := 'SELECT data FROM datfiles WHERE id=' + IntToStr(fileid) + ';';
384	FQuery.Open;
385	if FQuery.RecordCount > 0 then
386	begin
387	mem := FQuery.CreateBlobStream(FQuery.FieldByName('data'), bmRead);
388	mem.Seek(0, soFromBeginning);
389	Target.CopyFrom(mem, mem.Size);
390	mem.Free;
391	end;
392	FQuery.Close;
393
394	Target.Seek(streampos, soFromBeginning);
395	end;
396	end;
397
398	procedure TAccess_OUP_ADB.UpdateDatFile(FileID: Integer; Src: TStream);
399	var
400	MimeCoder: TStringFormat_MIME64;
401	mem: TMemoryStream;
402	begin
403	if fileid < GetFileCount then
404	begin
405	mimecoder := TStringFormat_MIME64.Create;
406	mem := TMemoryStream.Create;
407	mem.CopyFrom(Src, Src.Size);
408	FQuery.SQL.Text := 'UPDATE datfiles SET data=MimeToBin("' +
409	MimeCoder.StrTo(mem.Memory, mem.Size) + '"), size=' + IntToStr(mem.Size) +
410	' WHERE id=' + IntToStr(fileid) + ';';
411	FQuery.ExecSQL;
412	mem.Free;
413	mimecoder.Free;
414	end;
415	end;
416
417
418
419	procedure TAccess_OUP_ADB.LoadDatFilePart(FileID, Offset, Size: Integer; var Target: TStream);
420	var
421	streampos: Integer;
422	mem: TStream;
423	begin
424	if fileid < GetFileCount then
425	begin
426	if not Assigned(Target) then
427	Target := TMemoryStream.Create;
428	streampos := Target.Position;
429
430	FQuery.SQL.Text := 'SELECT data FROM datfiles WHERE id=' + IntToStr(fileid) + ';';
431	FQuery.Open;
432	if FQuery.RecordCount > 0 then
433	begin
434	mem := FQuery.CreateBlobStream(FQuery.FieldByName('data'), bmRead);
435	mem.Seek(offset, soFromBeginning);
436	Target.CopyFrom(mem, size);
437	mem.Free;
438	end;
439	FQuery.Close;
440	Target.Seek(streampos, soFromBeginning);
441	end;
442	end;
443
444
445
446	procedure TAccess_OUP_ADB.UpdateDatFilePart(FileID, Offset, Size: Integer; Src: TStream);
447	var
448	MimeCoder: TStringFormat_MIME64;
449	mem: TMemoryStream;
450	begin
451	if fileid < GetFileCount then
452	begin
453	mem := nil;
454	LoadDatFile(fileid, TStream(mem));
455	mem.Seek(Offset, soFromBeginning);
456	mem.CopyFrom(Src, Size);
457	mem.Seek(0, soFromBeginning);
458	mimecoder := TStringFormat_MIME64.Create;
459	FQuery.SQL.Text := 'UPDATE datfiles SET data=MimeToBin("' +
460	MimeCoder.StrTo(mem.Memory, mem.Size) + '") WHERE id=' + IntToStr(fileid) + ';';
461	FQuery.ExecSQL;
462	mem.Free;
463	mimecoder.Free;
464	end;
465	end;
466
467
468
469	function TAccess_OUP_ADB.GetDatLink(FileID, DatOffset: Integer): TDatLink;
470	begin
471	Result := DatLinksManager.GetDatLink(FConnectionID, FileID, DatOffset);
472	FQuery.SQL.Text := 'SELECT target_id FROM linkmap WHERE src_id = ' + IntToStr(FileID) + ' and src_link_offset = ' + IntToStr(DatOffset) + ';';
473	FQuery.Open;
474	if FQuery.RecordCount > 0 then
475	Result.DestID := FQuery.FieldByName('target_id').AsInteger;
476	FQuery.Close;
477	end;
478
479
480	function TAccess_OUP_ADB.GetDatLinks(FileID: Integer): TDatLinkList;
481	var
482	i: Integer;
483	SrcOffset, DestID: Integer;
484	begin
485	Result := DatLinksManager.GetDatLinks(FConnectionID, FileID);
486	if Length(Result) > 0 then
487	begin
488	FQuery.SQL.Text := 'SELECT src_link_offset, target_id FROM linkmap WHERE src_id = ' + IntToStr(FileID) + ' ORDER BY src_link_offset ASC;';
489	FQuery.Open;
490	if FQuery.RecordCount > 0 then
491	begin
492	repeat
493	SrcOffset := FQuery.FieldByName('src_link_offset').AsInteger;
494	DestID := FQuery.FieldByName('target_id').AsInteger;
495	for i := 0 to High(Result) do
496	if Result[i].SrcOffset = SrcOffset then
497	Break;
498	if i < Length(Result) then
499	Result[i].DestID := DestID
500	else
501	Result[i].DestID := -1;
502	FQuery.Next;
503	until FQuery.EOF;
504	end;
505	FQuery.Close;
506	end;
507	end;
508
509
510	function TAccess_OUP_ADB.GetRawList(FileID: Integer): TRawDataList;
511	var
512	i: Integer;
513	begin
514	SetLength(Result, 0);
515	FQuery.SQL.Text := 'SELECT [src_link_offset],[size],[sep] FROM rawmap WHERE [src_id]=' +
516	IntToStr(fileid) + ' ORDER BY src_link_offset ASC;';
517	FQuery.Open;
518	if FQuery.RecordCount > 0 then
519	begin
520	FQuery.First;
521	SetLength(Result, FQuery.RecordCount);
522	i := 0;
523	repeat
524	Result[i].SrcID := fileid;
525	Result[i].SrcOffset := FQuery.FieldByName('src_link_offset').AsInteger;
526	Result[i].RawAddr := 0;
527	Result[i].RawSize := FQuery.FieldByName('size').AsInteger;
528	Result[i].LocSep := FQuery.FieldByName('sep').AsBoolean;
529	Inc(i);
530	FQuery.Next;
531	until FQuery.EOF;
532	end;
533	FQuery.Close;
534	end;
535
536
537	function TAccess_OUP_ADB.GetRawInfo(FileID, DatOffset: Integer): TRawDataInfo;
538	var
539	i: Integer;
540	rawlist: TRawDataList;
541	begin
542	rawlist := GetRawList(FileID);
543	if Length(rawlist) > 0 then
544	begin
545	for i := 0 to High(rawlist) do
546	if rawlist[i].SrcOffset = DatOffset then
547	Break;
548	if i < Length(rawlist) then
549	Result := rawlist[i]
550	else begin
551	Result.SrcID := -1;
552	Result.SrcOffset := -1;
553	Result.RawAddr := -1;
554	Result.RawSize := -1;
555	end;
556	end;
557	end;
558
559
560
561	procedure TAccess_OUP_ADB.LoadRawFile(FileID, DatOffset: Integer; var Target: TStream);
562	var
563	mem: TStream;
564	streampos: Integer;
565	begin
566	if fileid < GetFileCount then
567	begin
568	if not Assigned(Target) then
569	Target := TMemoryStream.Create;
570	streampos := Target.Position;
571	FQuery.SQL.Text := 'SELECT data FROM rawmap WHERE (src_id=' +
572	IntToStr(FileID) + ') AND (src_link_offset=' + IntToStr(DatOffset) + ');';
573	FQuery.Open;
574	if FQuery.RecordCount > 0 then
575	begin
576	mem := FQuery.CreateBlobStream(FQuery.FieldByName('data'), bmRead);
577	mem.Seek(0, soFromBeginning);
578	Target.CopyFrom(mem, mem.Size);
579	mem.Free;
580	end;
581	FQuery.Close;
582	Target.Seek(streampos, soFromBeginning);
583	end;
584	end;
585
586
587	procedure TAccess_OUP_ADB.UpdateRawFile(FileID, DatOffset: Integer; Src: TStream);
588	var
589	MimeCoder: TStringFormat_MIME64;
590	mem: TMemoryStream;
591	begin
592	if fileid < GetFileCount then
593	begin
594	mimecoder := TStringFormat_MIME64.Create;
595	mem := TMemoryStream.Create;
596	mem.CopyFrom(Src, Src.Size);
597	mem.Seek(0, soFromBeginning);
598	FQuery.SQL.Text := 'UPDATE rawmap SET data=MimeToBin("' + MimeCoder.StrTo(
599	mem.Memory, mem.Size) + '") WHERE (src_id=' + IntToStr(FileID) +
600	') AND (src_link_offset=' + IntToStr(DatOffset) + ');';
601	FQuery.ExecSQL;
602	mem.Free;
603	mimecoder.Free;
604	end;
605	end;
606
607
608
609
610	procedure TAccess_OUP_ADB.LoadRawFilePart(FileID, DatOffset, Offset, Size: Integer; var Target: TStream);
611	var
612	mem: TMemoryStream;
613	streampos: Integer;
614	begin
615	if fileid < GetFileCount then
616	begin
617	if not Assigned(Target) then
618	Target := TMemoryStream.Create;
619	streampos := Target.Position;
620	mem := nil;
621	LoadRawFile(FileID, DatOffset, TStream(mem));
622	mem.Seek(Offset, soFromBeginning);
623	Target.CopyFrom(mem, Size);
624	mem.Free;
625	Target.Seek(streampos, soFromBeginning);
626	end;
627	end;
628
629
630
631
632	procedure TAccess_OUP_ADB.UpdateRawFilePart(FileID, DatOffset, Offset, Size: Integer; Src: TStream);
633	var
634	MimeCoder: TStringFormat_MIME64;
635	mem: TMemoryStream;
636	begin
637	if fileid < GetFileCount then
638	begin
639	mem := nil;
640	LoadRawFile(fileid, offset, TStream(mem));
641	mem.Seek(offset, soFromBeginning);
642	mem.CopyFrom(Src, Size);
643	mem.Seek(0, soFromBeginning);
644	mimecoder := TStringFormat_MIME64.Create;
645	FQuery.SQL.Text := 'UPDATE rawmap SET data=MimeToBin("' + MimeCoder.StrTo(
646	mem.Memory, mem.Size) + '") WHERE (src_id=' + IntToStr(fileid) +
647	') AND (src_link_offset=' + IntToStr(DatOffset) + ');';
648	FQuery.ExecSQL;
649	mem.Free;
650	mimecoder.Free;
651	end;
652	end;
653
654
655
656
657	end.