unit LinkMst;

interface

uses
  Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms, Dialogs,
  wItem,
  FireDAC.Stan.Intf,
  FireDAC.Stan.Option, FireDAC.Stan.Error, FireDAC.UI.Intf, FireDAC.Phys.Intf,
  FireDAC.Stan.Def, FireDAC.Stan.Pool, FireDAC.Stan.Async, FireDAC.Phys,
  FireDAC.Stan.Param, FireDAC.DatS, FireDAC.DApt.Intf, FireDAC.DApt,
  FireDAC.Phys.PGDef, FireDAC.VCLUI.Wait, FireDAC.Comp.UI, FireDAC.Phys.PG,
  Data.DB, FireDAC.Comp.DataSet, FireDAC.Comp.Client
  ;

type
  TLinkMst = class(TwItem)
  private
    { Private declarations }
    FOrdNum: string;
    FSiteName: string;
    FURL: string;
    FDescriptions: string;
    FMenuType: string;
    FParentName: string;

    FIsParent: string;
    FParentCode: string;
    FDepth: string;
  protected
    { Protected declarations }
  public
    { Public declarations }
    class function xAddSqlMark(velStr: string): string;
    class function xGetObjsLinkMstList(AQuery: TFDQuery): TList;
    class function xAddSqlDoubleMark(velStr: string): string;
    class function LoadFromQuery(AQuery: TFDQuery): TList;

    class function xGetIntLinkMstCount(AQuery: TFDQuery): Integer;
    class function LoadFromStringsQuery(AQuery: TFDQuery; column: string): TStrings;

    class function xGetStrParentCode(AQuery: TFDQuery; pName,pCode: string): string;
  published
    { Published declarations }
    property OrdNum: string read FOrdNum write FOrdNum;
    property SiteName: string read FSiteName write FSiteName;
    property URL: string read FURL write FURL;
    property Descriptions: string read FDescriptions write FDescriptions;
    property MenuType: string read FMenuType write FMenuType;
    property ParentName: string read FParentName write FParentName;

    property IsParent: string read FIsParent write FIsParent;
    property ParentCode: string read FParentCode write FParentCode;
    property Depth: string read FDepth write FDepth;
  end;

implementation

{ TLinkMst }

class function TLinkMst.LoadFromQuery(AQuery: TFDQuery): TList;
var
  curLink: TLinkMst;
begin
  Result := TList.Create;
  while not AQuery.Eof do begin
    curLink := TLinkMst.Create(nil);
    curLink.OBID := AQuery.FieldByName('OBID').AsString;
    curLink.Name := AQuery.FieldByName('Name').AsString;
    curLink.wClassName := AQuery.FieldByName('wClassName').AsString;
    curLink.CreateDate := AQuery.FieldByName('CreateDate').AsString;
    curLink.CreateTime := FormatDateTime('hh:nn:ss', AQuery.FieldByName('CreateTime').AsDateTime);
    curLink.CreatorID := AQuery.FieldByName('CreatorID').AsString;
    curLink.IsValid := AQuery.FieldByName('IsValid').AsString;
    curLink.LcStatus := AQuery.FieldByName('LcStatus').AsString;
    curLink.OrdNum := AQuery.FieldByName('OrdNum').AsString;
    curLink.SiteName := AQuery.FieldByName('SiteName').AsString;
    curLink.URL := AQuery.FieldByName('URL').AsString;
    curLink.Descriptions := AQuery.FieldByName('Descriptions').AsString;
    curLink.MenuType := AQuery.FieldByName('MenuType').AsString;
    curLink.ParentName := AQuery.FieldByName('ParentName').AsString;
    curLink.IsParent := AQuery.FieldByName('IsParent').AsString;
    curLink.ParentCode := AQuery.FieldByName('ParentCode').AsString;
    curLink.Depth := AQuery.FieldByName('Depth').AsString;
    Result.Add(curLink);

    AQuery.Next;
  end;
end;

class function TLinkMst.LoadFromStringsQuery(AQuery: TFDQuery;
  column: string): TStrings;
var
  valStr: string;
begin
  Result := TStringList.Create;
  while not AQuery.Eof do begin
    valStr := AQuery.FieldByName(column).AsString;
    Result.Add(valStr);

    AQuery.Next;
  end;
end;

class function TLinkMst.xAddSqlDoubleMark(velStr: String): String;
begin
  Result := '';
  Result := '"' + velStr + '"';
end;

class function TLinkMst.xAddSqlMark(velStr: string): string;
begin
  Result := '';
  Result := '''' + velStr + '''';
end;

class function TLinkMst.xGetIntLinkMstCount(AQuery: TFDQuery): Integer;
var
  sql, column: string;
  resStrs: TStrings;
begin
  Result := 0;
  sql := 'SELECT COUNT(*) FROM "LinkMst"';
  sql := sql + ' WHERE "IsValid"=' + xAddSqlMark('t');

  try
    AQuery.Close;
    AQuery.SQL.Text := sql;
    AQuery.Open;
  except
    on E: Exception do ShowMessage('xGetIntLinkMstCount Äõ¸® ½ÇÇà ¿À·ù: ' + E.Message);
  end;

  column := 'COUNT';
  resStrs := LoadFromStringsQuery(AQuery, column);
  if resStrs.Count > 0 then begin
    Result := StrToIntDef(resStrs.Strings[0],1);
    Result := Result + 1;
  end;
  resStrs.Free;
end;

class function TLinkMst.xGetObjsLinkMstList(AQuery: TFDQuery): TList;
var
  sql: string;
begin
  Result := nil;
  sql := 'SELECT * FROM "LinkMst"';
  sql := sql + ' WHERE "IsValid"=' + xAddSqlMark('t');
  sql := sql + ' ORDER BY "OrdNum"';

  try
    AQuery.Close;
    AQuery.SQL.Text := sql;
    AQuery.Open;
  except
    on E: Exception do ShowMessage('xGetObjsLinkMstList Äõ¸® ½ÇÇà ¿À·ù: ' + E.Message);
  end;
  Result := LoadFromQuery(AQuery);
end;

class function TLinkMst.xGetStrParentCode(AQuery: TFDQuery; pName,
  pCode: string): string;
var
  sql, colnum: string;
  tmpStrs: TStrings;
begin
  Result := '';
  sql := 'SELECT * FROM "LinkMst"';
  sql := sql + ' WHERE "IsValid"=' + xAddSqlMark('t');
  if Length(Trim(pName)) > 0 then sql := sql + ' AND "Name"=' + xAddSqlMark(pName);
  if Length(Trim(pCode)) > 0 then sql := sql + ' AND "ParentCode"=' + xAddSqlMark(pCode);

  try
    AQuery.Close;
    AQuery.SQL.Text := sql;
    AQuery.Open;
  except
    on E: Exception do ShowMessage('xGetStrParentCode Äõ¸® ½ÇÇà ¿À·ù: ' + E.Message);
  end;
  colnum := 'OrdNum';
  tmpStrs := LoadFromStringsQuery(AQuery, colnum);

  if tmpStrs.Count > 0 then Result := tmpStrs.Strings[0];
  tmpStrs.Free;
end;

end.