demos/dbbrowse/browsedb.h

   1 //----------------------------------------------------------------------------------------
   2 // Name:        browsedb.h
   3 // Purpose:     a wxDb class
   4 // Author:      Mark Johnson, mj10777@gmx.net
   5 // Modified by:
   6 // Created:     19991127.mj10777
   7 // Copyright:   (c) Mark Johnson
   8 // Licence:     wxWindows license
   9 // RCS-ID:      $Id$
  10 //----------------------------------------------------------------------------------------
  11 //-- Zu tun in browsedb.h
  12 //----------------------------------------------------------------------------------------
  13 //-- 1)
  14 //----------------------------------------------------------------------------------------
  15 // Global structure for holding ODBC connection information
  16 //----------------------------------------------------------------------------------------
  17 extern wxDbConnectInf DbConnectInf;
  18 class MainDoc;
  19
  20 //----------------------------------------------------------------------------------------
  21 class BrowserDB
  22 {
  23 public:
  24     //---------------------------------------------------------------------------------------
  25     // Pointer to the main database connection used in the program.  This
  26     // pointer would normally be used for doing things as database lookups
  27     // for user login names and passwords, getting workstation settings, etc.
  28     // ---> IMPORTANT <---
  29     //
  30     //  For each database object created which uses this wxDb pointer
  31     //    connection to the database, when a CommitTrans() or RollBackTrans()
  32     //    will commit or rollback EVERY object which uses this wxDb pointer.
  33     //
  34     //    To allow each table object (those derived from wxDbTable) to be
  35     //    individually committed or rolled back, you MUST use a different
  36     //    instance of wxDb in the constructor of the table.  Doing so creates
  37     //  more overhead, and will use more database connections (some DBs have
  38     //    connection limits...), so use connections sparringly.
  39     //
  40     //  It is recommended that one "main" database connection be created for
  41     //  the entire program to use for READ-ONLY database accesses, but for each
  42     //  table object which will do a CommitTrans() or RollbackTrans() that a
  43     // new wxDb object be created and used for it.
  44     //---------------------------------------------------------------------------------------
  45     wxDb*          db_BrowserDB;
  46     wxDbInf*       ct_BrowserDB;
  47     wxDbColInf*    cl_BrowserDB;
  48     wxString       ODBCSource, UserName, Password;
  49     MainDoc *pDoc;
  50     //---------------------------------------------------------------------------------------
  51     wxString       Temp0, Temp1, Temp2, Temp3, Temp4, Temp5;
  52     wxString       ODBCText;
  53     wxTextCtrl*    p_LogWindow;
  54     wxString       s_SqlTyp[25];
  55     int            i_SqlTyp[25];
  56     wxString       s_dbTyp[5];
  57     int            i_dbTyp[5];
  58     int            i_Which;
  59     int            i_Records;
  60     int            i_Cols;
  61     //---------------------------------------------------------------------------------------
  62     BrowserDB();
  63     ~BrowserDB();
  64     void Zeiger_auf_NULL(int Art);
  65     bool Initialize(int Quiet);
  66     //---------------------------------------------------------------------------------------
  67     bool           OnStartDB(int Quiet);
  68     bool           OnCloseDB(int Quiet);
  69     bool           OnSelect(wxString tb_Name,int Quiet);
  70     bool           OnExecSql(wxString SQLStmt,int Quiet);
  71     bool           OnGetNext(int Cols,int Quiet);
  72     wxDbInf*       OnGetCatalog(int Quiet);
  73     wxDbColInf*    OnGetColumns(char *tableName, int numCols,int Quiet);
  74     void           OnFillSqlTyp();
  75     void           OnFilldbTyp();
  76     //---------------------------------------------------------------------------------------
  77 };  // BrowserDB class definition
  78     //----------------------------------------------------------------------------------------