wxWidgets/demos/dbbrowse/browsedb.cpp

//----------------------------------------------------------------------------------------
// Name:		BrowserDB.h,cpp
// Purpose: 	a wxDB class
// Author:		Mark Johnson
// Modified by:
// Created: 	19991127.mj10777
// Copyright:	(c) Mark Johnson
// Licence: 	wxWindows license
// RCS-ID:		$Id$
//----------------------------------------------------------------------------------------
//-- 1)
//----------------------------------------------------------------------------------------
//-- all #ifdefs that the whole Project needs. -------------------------------------------
//----------------------------------------------------------------------------------------
#ifdef __GNUG__
#pragma implementation
#pragma interface
#endif
//----------------------------------------------------------------------------------------
// For compilers that support precompilation, includes "wx/wx.h".
#include "wx/wxprec.h"
//----------------------------------------------------------------------------------------
#ifdef __BORLANDC__
#pragma hdrstop
#endif
//----------------------------------------------------------------------------------------
#ifndef WX_PRECOMP
#include "wx/wx.h"
#endif
//----------------------------------------------------------------------------------------
#include "std.h"
//----------------------------------------------------------------------------------------
// Global structure for holding ODBC connection information
// - darf nur einmal im Projekte definiert werden ?? Extra Databasse Klasse ?
wxDbConnectInf DbConnectInf;		// F<>r DBase

#if !wxUSE_ODBC
  #error Demo cannot be compiled unless setup.h has wxUSE_ODBC set to 1
#endif

//----------------------------------------------------------------------------------------
extern WXDLLEXPORT_DATA(wxDbList*) PtrBegDbList;	/* from db.cpp, used in getting back error results from db connections */

//----------------------------------------------------------------------------------------
char *GetExtendedDBErrorMsg(char *ErrFile, int ErrLine)
{
    static wxString msg;
    wxString tStr;
    if (ErrFile || ErrLine)
    {
        msg += "File: ";
        msg += ErrFile;
        msg += "   Line: ";
        tStr.Printf("%d",ErrLine);
        msg += tStr.GetData();
        // msg += "\n";
    }
    msg.Append ("\nODBC errors:\n");
    // msg += "\n";
    /* Scan through each database connection displaying
    * any ODBC errors that have occured. */
    wxDbList *pDbList;
    for (pDbList = PtrBegDbList; pDbList; pDbList = pDbList->PtrNext)
    {
        // Skip over any free connections
        if (pDbList->Free)
            continue;
        // Display errors for this connection
        for (int i = 0; i < DB_MAX_ERROR_HISTORY; i++)
        {
            if (pDbList->PtrDb->errorList[i])
            {
                msg.Append(pDbList->PtrDb->errorList[i]);
                if (strcmp(pDbList->PtrDb->errorList[i],"") != 0)
                    msg.Append("\n");
            }
        }
    }
    msg += "\n";
    return (char*) (const char*) msg;
}  // GetExtendedDBErrorMsg

//----------------------------------------------------------------------------------------
BrowserDB::BrowserDB()
{
    PointerToNULL(0);
    ODBCSource = "";			 // ODBC data source name (created with ODBC Administrator under Win95/NT)
    UserName   = "";			 // database username - must already exist in the data source
    Password   = "";			 // password database username
    OnFillSqlTyp();
    OnFilldbTyp();
}  // BrowserDB Constructor

//----------------------------------------------------------------------------------------
BrowserDB::~BrowserDB()
{
    PointerToNULL(1);  // Clean up Tables and Databases (Commit, Close and delete)
}  // BrowserDB destructor

//----------------------------------------------------------------------------------------
bool BrowserDB::Initialize(int Quiet)
{
    if (!OnStartDB(Quiet))
    {
        wxLogMessage(_("\n\n-E-> BrowserDB::OnStartDB(%s) : Failed ! "),ODBCSource.c_str());
        return FALSE;
    }
    return TRUE;
}  // BrowserDB:Initialize

//----------------------------------------------------------------------------------------
bool BrowserDB::OnStartDB(int Quiet)
{
    wxStopWatch sw;
    if (!Quiet)
        wxLogMessage(_("\n-I-> BrowserDB::OnStartDB(%s) : Begin "),ODBCSource.c_str());
    if (db_BrowserDB != NULL)
    {
        if (!Quiet)
            wxLogMessage(_("\n-I-> BrowserDB::OnStartDB() : DB is already open."));
        return TRUE;
    }

    DbConnectInf.AllocHenv();

    //---------------------------------------------------------------------------------------
    // Connect to datasource
    //---------------------------------------------------------------------------------------
    DlgUser *p_Dlg;
    p_Dlg = new DlgUser(pDoc->p_MainFrame,pDoc,"");
    p_Dlg->s_DSN	  = ODBCSource;
    p_Dlg->s_User	  = UserName;
    p_Dlg->s_Password = Password;
    p_Dlg->OnInit();
    p_Dlg->Fit();
    
    bool OK = FALSE;
    if (p_Dlg->ShowModal() == wxID_OK)
    {
        (pDoc->p_DSN+i_Which)->Usr = p_Dlg->s_User;
        (pDoc->p_DSN+i_Which)->Pas = p_Dlg->s_Password;
        UserName  = p_Dlg->s_User;
        Password  = p_Dlg->s_Password;
        OK = TRUE;
    }
    delete p_Dlg;
    if (OK)
    {
        //--------------------------------------------------------------------------------------
        DbConnectInf.SetDsn(ODBCSource); 		  // ODBC data source name (created with ODBC Administrator under Win95/NT)
        DbConnectInf.SetUserID(UserName);	      // database username - must already exist in the data source
        DbConnectInf.SetPassword(Password);	  // password database username
        db_BrowserDB = wxDbGetConnection(&DbConnectInf);
        // wxLogMessage(">>>%s<<<>>>%s<<<",UserName.c_str(),Password.c_str());
        if (db_BrowserDB == NULL)
        {
            DbConnectInf.SetDsn(wxT(""));
            DbConnectInf.SetUserID(wxT(""));
            DbConnectInf.SetPassword(wxT(""));
            if (!Quiet)
            {
                wxLogMessage(_("\n-E-> BrowserDB::OnConnectDataSource() DB CONNECTION ERROR : Unable to connect to the data source.\n\nCheck the name of your data source to verify it has been correctly entered/spelled.\n\nWith some databases, the user name and password must\nbe created with full rights to the table prior to making a connection\n(using tools provided by the database manufacturer)"));
                wxLogMessage(_("-I-> BrowserDB::OnStartDB(%s) : End - Time needed : %ld ms"),ODBCSource.c_str(),sw.Time());
            }
            DbConnectInf.FreeHenv();
            return FALSE;
        }
        //--------------------------------------------------------------------------------------
        if (!Quiet)
        {
            Temp1 = db_BrowserDB->GetDatabaseName();
            Temp2 = db_BrowserDB->GetDataSource();
            wxLogMessage(_("-I-> BrowserDB::OnGetDataSourceODBC() - DatabaseName(%s) ; DataSource(%s)"),Temp1.c_str(),Temp2.c_str());
            wxLogMessage(_("-I-> BrowserDB::OnStartDB(%s) : End - Time needed : %ld ms"),ODBCSource.c_str(),sw.Time());
        }
        return TRUE;
    }
    else
    {
        DbConnectInf.FreeHenv();
        return FALSE;
    }
}

//----------------------------------------------------------------------------------------
bool BrowserDB::OnCloseDB(int Quiet)
{
    if (!Quiet)
        wxLogMessage(_("-I-> BrowserDB::OnCloseDB() : Begin "));
    if (db_BrowserDB)
    {
//        db_BrowserDB->Close();
        wxDbFreeConnection(db_BrowserDB);

        DbConnectInf.FreeHenv();

        db_BrowserDB = NULL;
    }
    if (!Quiet)
        wxLogMessage(_("\n-I-> BrowserDB::OnCloseDB() : End "));
    return TRUE;
}

//----------------------------------------------------------------------------------------
bool BrowserDB::OnGetNext(int Cols,int Quiet)
{
    SDWORD cb;
    int 	 i_dbDataType;
    int   i=0;
    char			 s_temp[1024+1];
    long			 l_temp;
    double			 f_temp;
    int 			 AnzError=0;
    TIMESTAMP_STRUCT t_temp;
    wxString Temp0;
    //-----------------------------
    if (!db_BrowserDB->GetNext())
    {
        return FALSE;
        Temp0.Printf(_("\n-E-> BrowserDB::OnGetNext - ODBC-Error with GetNext \n-E-> "));
        Temp0 += GetExtendedDBErrorMsg(__FILE__,__LINE__);
        wxLogMessage(Temp0);
        wxMessageBox(Temp0);
    }
    else
    {
        for (i=0;i<Cols;i++)
        {
            strcpy((cl_BrowserDB+i)->tableName,"-E->");
            i_dbDataType = (cl_BrowserDB->pColFor+i)->i_dbDataType;
            if (i_dbDataType == 0)						  // Filter unsupported dbDataTypes
            {
                if (((cl_BrowserDB->pColFor+i)->i_sqlDataType == SQL_VARCHAR) || ((cl_BrowserDB->pColFor+i)->i_sqlDataType == SQL_LONGVARCHAR))
                    i_dbDataType = DB_DATA_TYPE_VARCHAR;
                if ((cl_BrowserDB->pColFor+i)->i_sqlDataType == SQL_C_DATE)
                    i_dbDataType = DB_DATA_TYPE_DATE;
                if ((cl_BrowserDB->pColFor+i)->i_sqlDataType == SQL_C_BIT)
                    i_dbDataType = DB_DATA_TYPE_INTEGER;
                if ((cl_BrowserDB->pColFor+i)->i_sqlDataType == SQL_NUMERIC)
                    i_dbDataType = DB_DATA_TYPE_VARCHAR;
                if ((cl_BrowserDB->pColFor+i)->i_sqlDataType == SQL_REAL)
                    i_dbDataType = DB_DATA_TYPE_FLOAT;
            }
            if ((i_dbDataType == DB_DATA_TYPE_INTEGER) && ((cl_BrowserDB->pColFor+i)->i_sqlDataType == SQL_C_DOUBLE))
            {	// DBASE Numeric
                i_dbDataType = DB_DATA_TYPE_FLOAT;
            }
            switch(i_dbDataType)
            {
            case DB_DATA_TYPE_VARCHAR:
                strcpy(s_temp,"");
                if (!db_BrowserDB->GetData(i+1,(cl_BrowserDB->pColFor+i)->i_dbDataType,&s_temp,sizeof(s_temp), &cb))
                {
                    Temp0.Printf(_("\n-E-> BrowserDB::OnGetNext - ODBC-Error with GetNext of >%s<.\n-E-> "),(cl_BrowserDB+i)->tableName);
                    Temp0 += GetExtendedDBErrorMsg(__FILE__,__LINE__);
                    wxLogMessage(Temp0);
                }
                Temp0.Printf((cl_BrowserDB->pColFor+i)->s_Field,s_temp);
                strcpy((cl_BrowserDB+i)->tableName,Temp0.c_str());
                break;
            case DB_DATA_TYPE_INTEGER:
                l_temp = 0;
                if (!db_BrowserDB->GetData(i+1,(cl_BrowserDB->pColFor+i)->i_sqlDataType,&l_temp,sizeof(l_temp), &cb))
                {
                    Temp0.Printf(_("\n-E-> BrowserDB::OnGetData - ODBC-Error with GetNext \n-E-> "));
                    Temp0 += GetExtendedDBErrorMsg(__FILE__,__LINE__);
                }
                else
                {
                    Temp0.Printf((cl_BrowserDB->pColFor+i)->s_Field,l_temp);
                    strcpy((cl_BrowserDB+i)->tableName,Temp0.c_str());
                }
                break;
            case DB_DATA_TYPE_FLOAT:
                f_temp = 0;
                if (!db_BrowserDB->GetData(i+1,(cl_BrowserDB->pColFor+i)->i_sqlDataType,&f_temp,sizeof(f_temp), &cb))
                {
                    Temp0.Printf(_("\n-E-> BrowserDB::OnGetData - ODBC-Error with GetNext \n-E-> "));
                    Temp0 += GetExtendedDBErrorMsg(__FILE__,__LINE__);
                    wxMessageBox(Temp0);
                }
                else
                {
                    Temp0.Printf((cl_BrowserDB->pColFor+i)->s_Field,f_temp);
                    strcpy((cl_BrowserDB+i)->tableName,Temp0.c_str());
                }
                break;
            case DB_DATA_TYPE_DATE:
                t_temp.day = t_temp.month = t_temp.year = t_temp.hour = t_temp.minute = t_temp.second = t_temp.fraction = 0;
                if (!db_BrowserDB->GetData(i+1,(cl_BrowserDB->pColFor+i)->i_sqlDataType,&t_temp,sizeof(t_temp), &cb))
                {
                    Temp0.Printf(_("\n-E-> BrowserDB::OnGetData - ODBC-Error with GetNext \n-E-> "));
                    Temp0 += GetExtendedDBErrorMsg(__FILE__,__LINE__);
                }
                else
                {
                    // i_Nation =  0 = timestamp , 1=EU, 2=UK, 3=International, 4=US
                    if (((cl_BrowserDB->pColFor+i)->i_Nation == 0)	||	// TS  YYYY-MM-DD
                        ((cl_BrowserDB->pColFor+i)->i_Nation == 3)) 	// IT  YYYY-MM-DD
                    {
                        Temp0.Printf((cl_BrowserDB->pColFor+i)->s_Field,t_temp.year,t_temp.month,t_temp.day,
                            t_temp.hour, t_temp.minute, t_temp.second, t_temp.fraction);
                        strcpy((cl_BrowserDB+i)->tableName,Temp0.c_str());
                    }
                    if (((cl_BrowserDB->pColFor+i)->i_Nation == 1) ||  // EU  DD.MM.YYYY
                        ((cl_BrowserDB->pColFor+i)->i_Nation == 2))   // UK  DD/MM/YYYY
                    {
                        Temp0.Printf((cl_BrowserDB->pColFor+i)->s_Field,t_temp.day,t_temp.month,t_temp.year,
                            t_temp.hour, t_temp.minute, t_temp.second, t_temp.fraction);
                        strcpy((cl_BrowserDB+i)->tableName,Temp0.c_str());
                    }
                    if ((cl_BrowserDB->pColFor+i)->i_Nation == 3)	   // US  MM/DD/YYYY
                    {
                        Temp0.Printf((cl_BrowserDB->pColFor+i)->s_Field,t_temp.month,t_temp.day,t_temp.year,
                            t_temp.hour, t_temp.minute, t_temp.second, t_temp.fraction);
                        strcpy((cl_BrowserDB+i)->tableName,Temp0.c_str());
                    }
                }
                break;
            default:
                AnzError++;
                if (AnzError <= 100)
                {
                    Temp0 = (cl_BrowserDB+i)->colName;
                    wxLogMessage(_("-E-> BrowserDB::OnGetNext - DB_DATA_TYPE_?? (%d) in Col(%s)"),(cl_BrowserDB->pColFor+i)->i_dbDataType,Temp0.c_str());
                }
                else
                    return TRUE;
                Temp0.Printf(_("-E-> unknown Format(%d) - sql(%d)"),(cl_BrowserDB->pColFor+i)->i_dbDataType,(cl_BrowserDB->pColFor+i)->i_sqlDataType);
                strcpy((cl_BrowserDB+i)->tableName,Temp0.c_str());
                break;
            };  // switch
        }  // for
    }  // else

    return TRUE;
}

//----------------------------------------------------------------------------------------
bool BrowserDB::OnSelect(wxString tb_Name, int Quiet)
{
    wxStopWatch sw;
    wxString SQLStmt;
    i_Records = 0;
    //---------------------------------------------------------------------------------------
    SQLStmt.sprintf("SELECT * FROM %s",tb_Name.c_str());
    if (!db_BrowserDB->ExecSql((char *)(SQLStmt.GetData())))
    {
        Temp0.Printf(_("\n-E-> BrowserDB::OnSelect - ODBC-Error with ExecSql of >%s<.\n-E-> "),tb_Name.c_str());
        Temp0 += GetExtendedDBErrorMsg(__FILE__,__LINE__);
        wxLogMessage(Temp0);
        wxMessageBox("-E-> BrowserDB::OnSelect - GetData()");
        return FALSE;
    }
    //---------------------------------------------------------------------------------------
    while (db_BrowserDB->GetNext())
    {
        i_Records++;
    }
    //---------------------------------------------------------------------------------------
    if (!db_BrowserDB->ExecSql((char *)(SQLStmt.GetData())))
    {
        Temp0.Printf(_("\n-E-> BrowserDB::OnSelect - ODBC-Error with ExecSql of >%s<.\n-E-> "),tb_Name.c_str());
        Temp0 += GetExtendedDBErrorMsg(__FILE__,__LINE__);
        wxLogMessage(Temp0);
        return FALSE;
    }
    //---------------------------------------------------------------------------------------
    // SetColDefs ( 0,"NAME",	  DB_DATA_TYPE_VARCHAR,  Name,	   SQL_C_CHAR,		sizeof(Name),	 TRUE, TRUE);  // Primary index
    //---------------------------------------------------------------------------------------
    if (!Quiet)
    {
        wxLogMessage(_("\n-I-> BrowserDB::OnSelect(%s) Records(%d): End - Time needed : %ld ms"),tb_Name.c_str(),i_Records,sw.Time());
    }
    return TRUE;
}

//----------------------------------------------------------------------------------------
bool BrowserDB::OnExecSql(wxString SQLStmt, int Quiet)
{
    //---------------------------------------------------------------------------------------
    if (!db_BrowserDB->ExecSql((char *)(SQLStmt.GetData())))
    {
        Temp0.Printf(_("\n-E-> BrowserDB::OnExecSQL - ODBC-Error with ExecSql of >%s<.\n-E-> "),SQLStmt.c_str());
        Temp0 += GetExtendedDBErrorMsg(__FILE__,__LINE__);
        if (!Quiet)
            wxLogMessage(Temp0);
        else
            wxMessageBox("-E-> BrowserDB::OnExecSql - ExecSql()");
        return FALSE;
    }
    if (!Quiet)
    {
        // wxLogMessage(_("\n-I-> BrowserDB::OnExecSql(%s) - End - Time needed : %ld ms"),SQLStmt.c_str(),sw.Time());
    }
    return TRUE;
}

//----------------------------------------------------------------------------------------
wxDbInf* BrowserDB::OnGetCatalog(int Quiet)
{
    char UName[255];
    strcpy(UName,UserName);
    ct_BrowserDB = db_BrowserDB->GetCatalog(UName);
    return ct_BrowserDB;
}

//----------------------------------------------------------------------------------------
wxDbColInf* BrowserDB::OnGetColumns(char *tableName, int numCols, int Quiet)
{
    char UName[255];
    int i;
    strcpy(UName,UserName);
    cl_BrowserDB = db_BrowserDB->GetColumns(tableName,&numCols,UName);
    cl_BrowserDB->pColFor = new wxDbColFor[numCols];
    for (i=0;i<numCols;i++)
    {
        (cl_BrowserDB->pColFor+i)->Format(1,(cl_BrowserDB+i)->dbDataType,(cl_BrowserDB+i)->sqlDataType,
            (cl_BrowserDB+i)->columnSize, (cl_BrowserDB+i)->decimalDigits);
    }
    return cl_BrowserDB;
}

//----------------------------------------------------------------------------------------
void BrowserDB::PointerToNULL(int Art)
{
    if (Art == 1) // L<>schen
    {
        if (cl_BrowserDB != NULL)
        { // Destroy the memory
            delete [] cl_BrowserDB;
        }
        if (ct_BrowserDB != NULL)
        { // Destroy the memory
            delete [] ct_BrowserDB;
        }
        if (db_BrowserDB != NULL)
        {
            db_BrowserDB->CommitTrans();
            db_BrowserDB->Close();
            wxDbCloseConnections();
            delete db_BrowserDB;
        }
    }
    cl_BrowserDB	   = NULL;
    ct_BrowserDB	   = NULL;
    db_BrowserDB	   = NULL;
    p_LogWindow 	   = NULL;
}

//----------------------------------------------------------------------------------------
void BrowserDB::OnFillSqlTyp()
{
    i_SqlTyp[1]  = SQL_C_BINARY;	 s_SqlTyp[1]  = "SQL_C_BINARY";
    i_SqlTyp[2]  = SQL_C_BIT;		 s_SqlTyp[2]  = "SQL_C_BIT";
    i_SqlTyp[3]  = SQL_C_BOOKMARK;	 s_SqlTyp[3]  = "SQL_C_BOOKMARK";
    i_SqlTyp[4]  = SQL_C_CHAR;		 s_SqlTyp[4]  = "SQL_C_CHAR";
    i_SqlTyp[5]  = SQL_C_DATE;		 s_SqlTyp[5]  = "SQL_C_DATE";
    i_SqlTyp[6]  = SQL_C_DEFAULT;	 s_SqlTyp[6]  = "SQL_C_DEFAULT";
    i_SqlTyp[7]  = SQL_C_DOUBLE;	 s_SqlTyp[7]  = "SQL_C_DOUBLE";
    i_SqlTyp[8]  = SQL_C_FLOAT; 	 s_SqlTyp[8]  = "SQL_C_FLOAT";
    i_SqlTyp[9]  = SQL_C_LONG;		 s_SqlTyp[9]  = "SQL_C_LONG";
    i_SqlTyp[10] = SQL_C_SHORT; 	 s_SqlTyp[10] = "SQL_C_SHORT";
    i_SqlTyp[11] = SQL_C_SLONG; 	 s_SqlTyp[11] = "SQL_C_SLONG";
    i_SqlTyp[12] = SQL_C_SSHORT;	 s_SqlTyp[12] = "SQL_C_SSHORT";
    i_SqlTyp[13] = SQL_C_STINYINT;	 s_SqlTyp[13] = "SQL_C_STINYINT";
    i_SqlTyp[14] = SQL_C_TIME;		 s_SqlTyp[14] = "SQL_C_TIME";
    i_SqlTyp[15] = SQL_C_TIMESTAMP;  s_SqlTyp[15] = "SQL_C_TIMESTAMP";
    i_SqlTyp[16] = SQL_C_TINYINT;	 s_SqlTyp[16] = "SQL_C_TINYINT";
    i_SqlTyp[17] = SQL_C_ULONG; 	 s_SqlTyp[17] = "SQL_C_ULONG";
    i_SqlTyp[18] = SQL_C_USHORT;	 s_SqlTyp[18] = "SQL_C_USHORT";
    i_SqlTyp[19] = SQL_C_UTINYINT;	 s_SqlTyp[19] = "SQL_C_UTINYINT";
    i_SqlTyp[20] = SQL_VARCHAR; 	 s_SqlTyp[20] = "SQL_VARCHAR";
    i_SqlTyp[21] = SQL_NUMERIC; 	 s_SqlTyp[21] = "SQL_NUMERIC";
    i_SqlTyp[22] = SQL_LONGVARCHAR;  s_SqlTyp[22] = "SQL_LONGVARCHAR";
    i_SqlTyp[23] = SQL_REAL;		 s_SqlTyp[23] = "SQL_REAL";
    i_SqlTyp[0]  = 23;				 s_SqlTyp[0]  = "";
}

//----------------------------------------------------------------------------------------
void BrowserDB::OnFilldbTyp()
{
    i_dbTyp[1]	 = DB_DATA_TYPE_VARCHAR;	 s_dbTyp[1]  = "DB_DATA_TYPE_VARCHAR";
    i_dbTyp[2]	 = DB_DATA_TYPE_INTEGER;	 s_dbTyp[2]  = "DB_DATA_TYPE_INTEGER";
    i_dbTyp[3]	 = DB_DATA_TYPE_FLOAT;		 s_dbTyp[3]  = "DB_DATA_TYPE_FLOAT";
    i_dbTyp[4]	 = DB_DATA_TYPE_DATE;		 s_dbTyp[4]  = "DB_DATA_TYPE_DATE";
    i_dbTyp[0]	 = 4;						 s_dbTyp[0]   = "";
}
//----------------------------------------------------------------------------------------