5b077d483b
fixed small listbox thing fixed layout probs of wxFrame small DnD updates small DialogEd optical correction small ODBC updates added wxListBox DClick Text in controls sample updated wxGTK.spec git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@1445 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
1554 lines
41 KiB
C++
1554 lines
41 KiB
C++
///////////////////////////////////////////////////////////////////////////////
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// Name: dbtable.cpp
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// Purpose: Implementation of the wxTable class.
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// Author: Doug Card
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// Modified by:
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// Created: 9.96
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// RCS-ID: $Id$
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// Copyright: (c) 1996 Remstar International, Inc.
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// Licence: wxWindows licence, plus:
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// Notice: This class library and its intellectual design are free of charge for use,
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// modification, enhancement, debugging under the following conditions:
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// 1) These classes may only be used as part of the implementation of a
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// wxWindows-based application
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// 2) All enhancements and bug fixes are to be submitted back to the wxWindows
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// user groups free of all charges for use with the wxWindows library.
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// 3) These classes may not be distributed as part of any other class library,
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// DLL, text (written or electronic), other than a complete distribution of
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// the wxWindows GUI development toolkit.
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///////////////////////////////////////////////////////////////////////////////
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#ifdef __GNUG__
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#pragma implementation "dbtable.h"
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#endif
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/*
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// SYNOPSIS START
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// SYNOPSIS STOP
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*/
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/*
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#ifdef _CONSOLE
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#include <iostream.h>
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#endif
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*/
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#include "wx/wxprec.h"
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#ifdef __BORLANDC__
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#pragma hdrstop
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#endif //__BORLANDC__
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#ifndef WX_PRECOMP
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#include <wx/wx.h>
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#endif //WX_PRECOMP
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#if wxUSE_ODBC
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#include <wx/dbtable.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <assert.h>
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#ifdef __UNIX__
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// The HPUX preprocessor lines below were commented out on 8/20/97
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// because macros.h currently redefines DEBUG and is unneeded.
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// # ifdef HPUX
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// # include <macros.h>
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// # endif
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# ifdef LINUX
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# include <sys/minmax.h>
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# endif
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#endif
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/********** wxTable::wxTable() **********/
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wxTable::wxTable(wxDB *pwxDB, const char *tblName, const int nCols, const char *qryTblName)
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{
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// Assign member variables
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pDb = pwxDB; // Pointer to the wxDB object
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strcpy(tableName, tblName); // Table Name
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if (qryTblName) // Name of the table/view to query
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strcpy(queryTableName, qryTblName);
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else
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strcpy(queryTableName, tblName);
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assert(pDb); // Assert is placed after table name is assigned for error reporting reasons
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if (!pDb)
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return;
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noCols = nCols; // No. of cols in the table
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where = 0; // Where clause
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orderBy = 0; // Order By clause
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from = 0; // From clause
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selectForUpdate = FALSE; // SELECT ... FOR UPDATE; Indicates whether to include the FOR UPDATE phrase
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// Grab the HENV and HDBC from the wxDB object
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henv = pDb->henv;
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hdbc = pDb->hdbc;
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// Allocate space for column definitions
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if (noCols)
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colDefs = new CcolDef[noCols]; // Points to the first column defintion
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else
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colDefs = 0;
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// Allocate statement handles for the table
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if (SQLAllocStmt(hdbc, &c0) != SQL_SUCCESS)
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pDb->DispAllErrors(henv, hdbc);
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if (SQLAllocStmt(hdbc, &c1) != SQL_SUCCESS)
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pDb->DispAllErrors(henv, hdbc);
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if (SQLAllocStmt(hdbc, &c2) != SQL_SUCCESS)
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pDb->DispAllErrors(henv, hdbc);
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// if (SQLAllocStmt(hdbc, &c3) != SQL_SUCCESS)
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// pDb->DispAllErrors(henv, hdbc);
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// if (SQLAllocStmt(hdbc, &c4) != SQL_SUCCESS)
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// pDb->DispAllErrors(henv, hdbc);
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// if (SQLAllocStmt(hdbc, &c5) != SQL_SUCCESS)
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// pDb->DispAllErrors(henv, hdbc);
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// Allocate a separate statement handle for performing inserts
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if (SQLAllocStmt(hdbc, &hstmtInsert) != SQL_SUCCESS)
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pDb->DispAllErrors(henv, hdbc);
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// Allocate a separate statement handle for performing deletes
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if (SQLAllocStmt(hdbc, &hstmtDelete) != SQL_SUCCESS)
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pDb->DispAllErrors(henv, hdbc);
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// Allocate a separate statement handle for performing updates
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if (SQLAllocStmt(hdbc, &hstmtUpdate) != SQL_SUCCESS)
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pDb->DispAllErrors(henv, hdbc);
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// Allocate a separate statement handle for performing count(*) function
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if (SQLAllocStmt(hdbc, &hstmtCount) != SQL_SUCCESS)
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pDb->DispAllErrors(henv, hdbc);
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// Set the cursor type for the statement handles
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UDWORD cursorType = SQL_CURSOR_STATIC;
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if (SQLSetStmtOption(c1, SQL_CURSOR_TYPE, cursorType) != SQL_SUCCESS)
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{
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// Check to see if cursor type is supported
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pDb->GetNextError(henv, hdbc, c1);
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if (! strcmp(pDb->sqlState, "01S02")) // Option Value Changed
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{
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// Datasource does not support static cursors. Driver
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// will substitute a cursor type. Call SQLGetStmtOption()
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// to determine which cursor type was selected.
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if (SQLGetStmtOption(c1, SQL_CURSOR_TYPE, (UCHAR*) &cursorType) != SQL_SUCCESS)
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pDb->DispAllErrors(henv, hdbc, c1);
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#ifdef _CONSOLE
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cout << "Static cursor changed to: ";
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switch(cursorType)
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{
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case SQL_CURSOR_FORWARD_ONLY:
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cout << "Forward Only"; break;
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case SQL_CURSOR_STATIC:
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cout << "Static"; break;
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case SQL_CURSOR_KEYSET_DRIVEN:
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cout << "Keyset Driven"; break;
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case SQL_CURSOR_DYNAMIC:
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cout << "Dynamic"; break;
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}
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cout << endl << endl;
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#endif
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}
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else
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{
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pDb->DispNextError();
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pDb->DispAllErrors(henv, hdbc, c1);
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}
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}
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#ifdef _CONSOLE
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else
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cout << "Cursor Type set to STATIC" << endl << endl;
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#endif
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if (SQLSetStmtOption(c0, SQL_CURSOR_TYPE, cursorType) != SQL_SUCCESS)
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pDb->DispAllErrors(henv, hdbc, c0);
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if (SQLSetStmtOption(c2, SQL_CURSOR_TYPE, cursorType) != SQL_SUCCESS)
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pDb->DispAllErrors(henv, hdbc, c2);
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// if (SQLSetStmtOption(c3, SQL_CURSOR_TYPE, cursorType) != SQL_SUCCESS)
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// pDb->DispAllErrors(henv, hdbc, c3);
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// if (SQLSetStmtOption(c4, SQL_CURSOR_TYPE, cursorType) != SQL_SUCCESS)
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// pDb->DispAllErrors(henv, hdbc, c4);
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// if (SQLSetStmtOption(c5, SQL_CURSOR_TYPE, cursorType) != SQL_SUCCESS)
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// pDb->DispAllErrors(henv, hdbc, c5);
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// Set the cursor type for the INSERT statement handle
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if (SQLSetStmtOption(hstmtInsert, SQL_CURSOR_TYPE, SQL_CURSOR_FORWARD_ONLY) != SQL_SUCCESS)
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pDb->DispAllErrors(henv, hdbc, hstmtInsert);
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// Set the cursor type for the DELETE statement handle
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if (SQLSetStmtOption(hstmtDelete, SQL_CURSOR_TYPE, SQL_CURSOR_FORWARD_ONLY) != SQL_SUCCESS)
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pDb->DispAllErrors(henv, hdbc, hstmtDelete);
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// Set the cursor type for the UPDATE statement handle
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if (SQLSetStmtOption(hstmtUpdate, SQL_CURSOR_TYPE, SQL_CURSOR_FORWARD_ONLY) != SQL_SUCCESS)
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pDb->DispAllErrors(henv, hdbc, hstmtUpdate);
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// Set the cursor type for the COUNT(*) statement handle
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if (SQLSetStmtOption(hstmtCount, SQL_CURSOR_TYPE, SQL_CURSOR_FORWARD_ONLY) != SQL_SUCCESS)
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pDb->DispAllErrors(henv, hdbc, hstmtCount);
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// Copy cursor 1 to the default cursor
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hstmt = c1;
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currCursorNo = DB_CURSOR1;
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} // wxTable::wxTable()
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/********** wxTable::~wxTable() **********/
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wxTable::~wxTable()
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{
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// Delete memory allocated for column definitions
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if (colDefs)
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delete [] colDefs;
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// Free statement handles
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if (SQLFreeStmt(c0, SQL_DROP) != SQL_SUCCESS)
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pDb->DispAllErrors(henv, hdbc);
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if (SQLFreeStmt(c1, SQL_DROP) != SQL_SUCCESS)
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pDb->DispAllErrors(henv, hdbc);
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if (SQLFreeStmt(c2, SQL_DROP) != SQL_SUCCESS)
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pDb->DispAllErrors(henv, hdbc);
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// if (SQLFreeStmt(c3, SQL_DROP) != SQL_SUCCESS)
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// pDb->DispAllErrors(henv, hdbc);
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// if (SQLFreeStmt(c4, SQL_DROP) != SQL_SUCCESS)
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// pDb->DispAllErrors(henv, hdbc);
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// if (SQLFreeStmt(c5, SQL_DROP) != SQL_SUCCESS)
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// pDb->DispAllErrors(henv, hdbc);
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if (SQLFreeStmt(hstmtInsert, SQL_DROP) != SQL_SUCCESS)
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pDb->DispAllErrors(henv, hdbc);
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if (SQLFreeStmt(hstmtDelete, SQL_DROP) != SQL_SUCCESS)
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pDb->DispAllErrors(henv, hdbc);
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if (SQLFreeStmt(hstmtUpdate, SQL_DROP) != SQL_SUCCESS)
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pDb->DispAllErrors(henv, hdbc);
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if (SQLFreeStmt(hstmtCount, SQL_DROP) != SQL_SUCCESS)
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pDb->DispAllErrors(henv, hdbc);
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} // wxTable::~wxTable()
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/********** wxTable::Open() **********/
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bool wxTable::Open(void)
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{
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if (!pDb)
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return FALSE;
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int i;
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char sqlStmt[DB_MAX_STATEMENT_LEN];
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// Verify that the table exists in the database
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if (!pDb->TableExists(tableName))
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{
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char s[128];
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sprintf(s, "Error opening '%s', table/view does not exist in the database.", tableName);
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pDb->LogError(s);
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return(FALSE);
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}
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// Bind the member variables for field exchange between
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// the wxTable object and the ODBC record.
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if(! bindInsertParams()) // Inserts
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return(FALSE);
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if(! bindUpdateParams()) // Updates
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return(FALSE);
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if(! bindCols(c0)) // Selects
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return(FALSE);
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if(! bindCols(c1))
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return(FALSE);
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if(! bindCols(c2))
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return(FALSE);
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// if(! bindCols(c3))
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// return(FALSE);
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// if(! bindCols(c4))
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// return(FALSE);
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// if(! bindCols(c5))
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// return(FALSE);
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// Build an insert statement using parameter markers
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if (noCols > 0)
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{
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bool needComma = FALSE;
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sprintf(sqlStmt, "INSERT INTO %s (", tableName);
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for (i = 0; i < noCols; i++)
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{
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if (! colDefs[i].InsertAllowed)
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continue;
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if (needComma)
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strcat(sqlStmt, ",");
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strcat(sqlStmt, colDefs[i].ColName);
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needComma = TRUE;
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}
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needComma = FALSE;
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strcat(sqlStmt, ") VALUES (");
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for (i = 0; i < noCols; i++)
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{
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if (! colDefs[i].InsertAllowed)
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continue;
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if (needComma)
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strcat(sqlStmt, ",");
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strcat(sqlStmt, "?");
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needComma = TRUE;
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}
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strcat(sqlStmt, ")");
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pDb->WriteSqlLog(sqlStmt);
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// Prepare the insert statement for execution
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if (SQLPrepare(hstmtInsert, (UCHAR FAR *) sqlStmt, SQL_NTS) != SQL_SUCCESS)
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return(pDb->DispAllErrors(henv, hdbc, hstmtInsert));
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}
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// Completed successfully
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return(TRUE);
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} // wxTable::Open()
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/********** wxTable::Query() **********/
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bool wxTable::Query(bool forUpdate, bool distinct)
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{
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return(query(DB_SELECT_WHERE, forUpdate, distinct));
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} // wxTable::Query()
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/********** wxTable::QueryBySqlStmt() **********/
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bool wxTable::QueryBySqlStmt(char *pSqlStmt)
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{
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pDb->WriteSqlLog(pSqlStmt);
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return(query(DB_SELECT_STATEMENT, FALSE, FALSE, pSqlStmt));
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} // wxTable::QueryBySqlStmt()
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/********** wxTable::QueryMatching() **********/
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bool wxTable::QueryMatching(bool forUpdate, bool distinct)
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{
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return(query(DB_SELECT_MATCHING, forUpdate, distinct));
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} // wxTable::QueryMatching()
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/********** wxTable::QueryOnKeyFields() **********/
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bool wxTable::QueryOnKeyFields(bool forUpdate, bool distinct)
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{
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return(query(DB_SELECT_KEYFIELDS, forUpdate, distinct));
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} // wxTable::QueryOnKeyFields()
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/********** wxTable::query() **********/
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bool wxTable::query(int queryType, bool forUpdate, bool distinct, char *pSqlStmt)
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{
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char sqlStmt[DB_MAX_STATEMENT_LEN];
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// Set the selectForUpdate member variable
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if (forUpdate)
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// The user may wish to select for update, but the DBMS may not be capable
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selectForUpdate = CanSelectForUpdate();
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else
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selectForUpdate = FALSE;
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// Set the SQL SELECT string
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if (queryType != DB_SELECT_STATEMENT) // A select statement was not passed in,
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{ // so generate a select statement.
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GetSelectStmt(sqlStmt, queryType, distinct);
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pDb->WriteSqlLog(sqlStmt);
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}
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// Make sure the cursor is closed first
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if (! CloseCursor(hstmt))
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return(FALSE);
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// Execute the SQL SELECT statement
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if (SQLExecDirect(hstmt, (UCHAR FAR *) (queryType == DB_SELECT_STATEMENT ? pSqlStmt : sqlStmt),
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SQL_NTS) != SQL_SUCCESS)
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return(pDb->DispAllErrors(henv, hdbc, hstmt));
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// Completed successfully
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return(TRUE);
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} // wxTable::query()
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/********** wxTable::GetSelectStmt() **********/
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void wxTable::GetSelectStmt(char *pSqlStmt, int typeOfSelect, bool distinct)
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{
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char whereClause[DB_MAX_WHERE_CLAUSE_LEN];
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whereClause[0] = 0;
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// Build a select statement to query the database
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strcpy(pSqlStmt, "SELECT ");
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// SELECT DISTINCT values only?
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if (distinct)
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strcat(pSqlStmt, "DISTINCT ");
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// Was a FROM clause specified to join tables to the base table?
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// Available for ::Query() only!!!
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bool appendFromClause = FALSE;
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if (typeOfSelect == DB_SELECT_WHERE && from && strlen(from))
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appendFromClause = TRUE;
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// Add the column list
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for (int i = 0; i < noCols; i++)
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{
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// If joining tables, the base table column names must be qualified to avoid ambiguity
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if (appendFromClause)
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{
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strcat(pSqlStmt, queryTableName);
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strcat(pSqlStmt, ".");
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}
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strcat(pSqlStmt, colDefs[i].ColName);
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if (i + 1 < noCols)
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strcat(pSqlStmt, ",");
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}
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// If the datasource supports ROWID, get this column as well. Exception: Don't retrieve
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// the ROWID if querying distinct records. The rowid will always be unique.
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if (!distinct && CanUpdByROWID())
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{
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// If joining tables, the base table column names must be qualified to avoid ambiguity
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if (appendFromClause)
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{
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strcat(pSqlStmt, ",");
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strcat(pSqlStmt, queryTableName);
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strcat(pSqlStmt, ".ROWID");
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}
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else
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strcat(pSqlStmt, ",ROWID");
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}
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// Append the FROM tablename portion
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strcat(pSqlStmt, " FROM ");
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strcat(pSqlStmt, queryTableName);
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if (appendFromClause)
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strcat(pSqlStmt, from);
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// Append the WHERE clause. Either append the where clause for the class
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// or build a where clause. The typeOfSelect determines this.
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switch(typeOfSelect)
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{
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case DB_SELECT_WHERE:
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if (where && strlen(where)) // May not want a where clause!!!
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{
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strcat(pSqlStmt, " WHERE ");
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strcat(pSqlStmt, where);
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}
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break;
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case DB_SELECT_KEYFIELDS:
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GetWhereClause(whereClause, DB_WHERE_KEYFIELDS);
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if (strlen(whereClause))
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{
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strcat(pSqlStmt, " WHERE ");
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strcat(pSqlStmt, whereClause);
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}
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break;
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case DB_SELECT_MATCHING:
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GetWhereClause(whereClause, DB_WHERE_MATCHING);
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if (strlen(whereClause))
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{
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strcat(pSqlStmt, " WHERE ");
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strcat(pSqlStmt, whereClause);
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}
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break;
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}
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// Append the ORDER BY clause
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if (orderBy && strlen(orderBy))
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{
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strcat(pSqlStmt, " ORDER BY ");
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strcat(pSqlStmt, orderBy);
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}
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// SELECT FOR UPDATE if told to do so and the datasource is capable
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if (selectForUpdate && CanSelectForUpdate())
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strcat(pSqlStmt, " FOR UPDATE");
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} // wxTable::GetSelectStmt()
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/********** wxTable::getRec() **********/
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bool wxTable::getRec(UWORD fetchType)
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{
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RETCODE retcode;
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#ifndef FWD_ONLY_CURSORS
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// Fetch the NEXT, PREV, FIRST or LAST record, depending on fetchType
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UDWORD cRowsFetched;
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UWORD rowStatus;
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if ((retcode = SQLExtendedFetch(hstmt, fetchType, 0, &cRowsFetched, &rowStatus)) != SQL_SUCCESS)
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if (retcode == SQL_NO_DATA_FOUND)
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return(FALSE);
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else
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return(pDb->DispAllErrors(henv, hdbc, hstmt));
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#else
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// Fetch the next record from the record set
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if ((retcode = SQLFetch(hstmt)) != SQL_SUCCESS)
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if (retcode == SQL_NO_DATA_FOUND)
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return(FALSE);
|
|
else
|
|
return(pDb->DispAllErrors(henv, hdbc, hstmt));
|
|
#endif
|
|
|
|
// Completed successfully
|
|
return(TRUE);
|
|
|
|
} // wxTable::getRec()
|
|
|
|
/********** wxTable::GetRowNum() **********/
|
|
UWORD wxTable::GetRowNum(void)
|
|
{
|
|
UDWORD rowNum;
|
|
|
|
if (SQLGetStmtOption(hstmt, SQL_ROW_NUMBER, (UCHAR*) &rowNum) != SQL_SUCCESS)
|
|
{
|
|
pDb->DispAllErrors(henv, hdbc, hstmt);
|
|
return(0);
|
|
}
|
|
|
|
// Completed successfully
|
|
return((UWORD) rowNum);
|
|
|
|
} // wxTable::GetRowNum()
|
|
|
|
/********** wxTable::bindInsertParams() **********/
|
|
bool wxTable::bindInsertParams(void)
|
|
{
|
|
SWORD fSqlType = 0;
|
|
UDWORD precision = 0;
|
|
SWORD scale = 0;
|
|
|
|
// Bind each column (that can be inserted) of the table to a parameter marker
|
|
for (int i = 0; i < noCols; i++)
|
|
{
|
|
if (! colDefs[i].InsertAllowed)
|
|
continue;
|
|
switch(colDefs[i].DbDataType)
|
|
{
|
|
case DB_DATA_TYPE_VARCHAR:
|
|
fSqlType = pDb->typeInfVarchar.FsqlType;
|
|
precision = colDefs[i].SzDataObj;
|
|
scale = 0;
|
|
colDefs[i].CbValue = SQL_NTS;
|
|
break;
|
|
case DB_DATA_TYPE_INTEGER:
|
|
fSqlType = pDb->typeInfInteger.FsqlType;
|
|
precision = pDb->typeInfInteger.Precision;
|
|
scale = 0;
|
|
colDefs[i].CbValue = 0;
|
|
break;
|
|
case DB_DATA_TYPE_FLOAT:
|
|
fSqlType = pDb->typeInfFloat.FsqlType;
|
|
precision = pDb->typeInfFloat.Precision;
|
|
scale = pDb->typeInfFloat.MaximumScale;
|
|
// SQL Sybase Anywhere v5.5 returned a negative number for the
|
|
// MaxScale. This caused ODBC to kick out an error on ibscale.
|
|
// I check for this here and set the scale = precision.
|
|
//if (scale < 0)
|
|
// scale = (short) precision;
|
|
colDefs[i].CbValue = 0;
|
|
break;
|
|
case DB_DATA_TYPE_DATE:
|
|
fSqlType = pDb->typeInfDate.FsqlType;
|
|
precision = pDb->typeInfDate.Precision;
|
|
scale = 0;
|
|
colDefs[i].CbValue = 0;
|
|
break;
|
|
}
|
|
if (SQLBindParameter(hstmtInsert, i+1, SQL_PARAM_INPUT, colDefs[i].SqlCtype,
|
|
fSqlType, precision, scale, (UCHAR*) colDefs[i].PtrDataObj,
|
|
precision+1,&colDefs[i].CbValue) != SQL_SUCCESS)
|
|
return(pDb->DispAllErrors(henv, hdbc, hstmtInsert));
|
|
}
|
|
|
|
// Completed successfully
|
|
return(TRUE);
|
|
|
|
} // wxTable::bindInsertParams()
|
|
|
|
/********** wxTable::bindUpdateParams() **********/
|
|
bool wxTable::bindUpdateParams(void)
|
|
{
|
|
SWORD fSqlType = 0;
|
|
UDWORD precision = 0;
|
|
SWORD scale = 0;
|
|
|
|
// Bind each UPDATEABLE column of the table to a parameter marker
|
|
for (int i = 0, colNo = 1; i < noCols; i++)
|
|
{
|
|
if (! colDefs[i].Updateable)
|
|
continue;
|
|
switch(colDefs[i].DbDataType)
|
|
{
|
|
case DB_DATA_TYPE_VARCHAR:
|
|
fSqlType = pDb->typeInfVarchar.FsqlType;
|
|
precision = colDefs[i].SzDataObj;
|
|
scale = 0;
|
|
colDefs[i].CbValue = SQL_NTS;
|
|
break;
|
|
case DB_DATA_TYPE_INTEGER:
|
|
fSqlType = pDb->typeInfInteger.FsqlType;
|
|
precision = pDb->typeInfInteger.Precision;
|
|
scale = 0;
|
|
colDefs[i].CbValue = 0;
|
|
break;
|
|
case DB_DATA_TYPE_FLOAT:
|
|
fSqlType = pDb->typeInfFloat.FsqlType;
|
|
precision = pDb->typeInfFloat.Precision;
|
|
scale = pDb->typeInfFloat.MaximumScale;
|
|
// SQL Sybase Anywhere v5.5 returned a negative number for the
|
|
// MaxScale. This caused ODBC to kick out an error on ibscale.
|
|
// I check for this here and set the scale = precision.
|
|
//if (scale < 0)
|
|
// scale = (short) precision;
|
|
colDefs[i].CbValue = 0;
|
|
break;
|
|
case DB_DATA_TYPE_DATE:
|
|
fSqlType = pDb->typeInfDate.FsqlType;
|
|
precision = pDb->typeInfDate.Precision;
|
|
scale = 0;
|
|
colDefs[i].CbValue = 0;
|
|
break;
|
|
}
|
|
if (SQLBindParameter(hstmtUpdate, colNo++, SQL_PARAM_INPUT, colDefs[i].SqlCtype,
|
|
fSqlType, precision, scale, (UCHAR*) colDefs[i].PtrDataObj,
|
|
precision+1, &colDefs[i].CbValue) != SQL_SUCCESS)
|
|
return(pDb->DispAllErrors(henv, hdbc, hstmtUpdate));
|
|
}
|
|
|
|
// Completed successfully
|
|
return(TRUE);
|
|
|
|
} // wxTable::bindUpdateParams()
|
|
|
|
/********** wxTable::bindCols() **********/
|
|
bool wxTable::bindCols(HSTMT cursor)
|
|
{
|
|
static SDWORD cb;
|
|
|
|
// Bind each column of the table to a memory address for fetching data
|
|
for (int i = 0; i < noCols; i++)
|
|
{
|
|
if (SQLBindCol(cursor, i+1, colDefs[i].SqlCtype, (UCHAR*) colDefs[i].PtrDataObj,
|
|
colDefs[i].SzDataObj, &cb) != SQL_SUCCESS)
|
|
return(pDb->DispAllErrors(henv, hdbc, cursor));
|
|
}
|
|
|
|
// Completed successfully
|
|
return(TRUE);
|
|
|
|
} // wxTable::bindCols()
|
|
|
|
/********** wxTable::CloseCursor() **********/
|
|
bool wxTable::CloseCursor(HSTMT cursor)
|
|
{
|
|
if (SQLFreeStmt(cursor, SQL_CLOSE) != SQL_SUCCESS)
|
|
return(pDb->DispAllErrors(henv, hdbc, cursor));
|
|
|
|
// Completed successfully
|
|
return(TRUE);
|
|
|
|
} // wxTable::CloseCursor()
|
|
|
|
/********** wxTable::CreateTable() **********/
|
|
bool wxTable::CreateTable(void)
|
|
{
|
|
if (!pDb)
|
|
return FALSE;
|
|
|
|
int i, j;
|
|
char sqlStmt[DB_MAX_STATEMENT_LEN];
|
|
|
|
#ifdef _CONSOLE
|
|
cout << "Creating Table " << tableName << "..." << endl;
|
|
#endif
|
|
|
|
// Drop the table first
|
|
sprintf(sqlStmt, "DROP TABLE %s", tableName);
|
|
if (SQLExecDirect(hstmt, (UCHAR FAR *) sqlStmt, SQL_NTS) != SQL_SUCCESS)
|
|
{
|
|
/* Check for sqlState = S0002, "Table or view not found".
|
|
* Ignore this error, bomb out on any other error.
|
|
* SQL Sybase Anwhere v5.5 returns an access violation error here
|
|
* (sqlstate = 42000) rather than an S0002. */
|
|
|
|
/* PostgreSQL 6.4.0 returns "08S01" or in written form
|
|
"ERROR: Relation ... Does Not Exist", Robert Roebling */
|
|
|
|
/* MySQL 3.23.33b returns "S1000" or in written form
|
|
"ERROR: Unknown table ...", Robert Roebling */
|
|
|
|
/* This routine is bullshit, Robert Roebling */
|
|
|
|
pDb->GetNextError(henv, hdbc, hstmt);
|
|
if (strcmp(pDb->sqlState, "S0002") &&
|
|
strcmp(pDb->sqlState, "S1000") &&
|
|
strcmp(pDb->sqlState, "42000") &&
|
|
strcmp(pDb->sqlState, "08S01"))
|
|
{
|
|
pDb->DispNextError();
|
|
pDb->DispAllErrors(henv, hdbc, hstmt);
|
|
pDb->RollbackTrans();
|
|
CloseCursor(hstmt);
|
|
return(FALSE);
|
|
}
|
|
}
|
|
|
|
pDb->WriteSqlLog(sqlStmt);
|
|
|
|
// Commit the transaction and close the cursor
|
|
if (! pDb->CommitTrans())
|
|
return(FALSE);
|
|
if (! CloseCursor(hstmt))
|
|
return(FALSE);
|
|
|
|
// Create the table
|
|
#ifdef _CONSOLE
|
|
for (i = 0; i < noCols; i++)
|
|
{
|
|
// Exclude derived columns since they are NOT part of the base table
|
|
if (colDefs[i].DerivedCol)
|
|
continue;
|
|
cout << i + 1 << ": " << colDefs[i].ColName << "; ";
|
|
switch(colDefs[i].DbDataType)
|
|
{
|
|
case DB_DATA_TYPE_VARCHAR:
|
|
cout << pDb->typeInfVarchar.TypeName << "(" << colDefs[i].SzDataObj << ")";
|
|
break;
|
|
case DB_DATA_TYPE_INTEGER:
|
|
cout << pDb->typeInfInteger.TypeName;
|
|
break;
|
|
case DB_DATA_TYPE_FLOAT:
|
|
cout << pDb->typeInfFloat.TypeName;
|
|
break;
|
|
case DB_DATA_TYPE_DATE:
|
|
cout << pDb->typeInfDate.TypeName;
|
|
break;
|
|
}
|
|
cout << endl;
|
|
}
|
|
#endif
|
|
|
|
// Build a CREATE TABLE string from the colDefs structure.
|
|
bool needComma = FALSE;
|
|
sprintf(sqlStmt, "CREATE TABLE %s (", tableName);
|
|
for (i = 0; i < noCols; i++)
|
|
{
|
|
// Exclude derived columns since they are NOT part of the base table
|
|
if (colDefs[i].DerivedCol)
|
|
continue;
|
|
// Comma Delimiter
|
|
if (needComma)
|
|
strcat(sqlStmt, ",");
|
|
// Column Name
|
|
strcat(sqlStmt, colDefs[i].ColName);
|
|
strcat(sqlStmt, " ");
|
|
// Column Type
|
|
switch(colDefs[i].DbDataType)
|
|
{
|
|
case DB_DATA_TYPE_VARCHAR:
|
|
strcat(sqlStmt, pDb->typeInfVarchar.TypeName); break;
|
|
case DB_DATA_TYPE_INTEGER:
|
|
strcat(sqlStmt, pDb->typeInfInteger.TypeName); break;
|
|
case DB_DATA_TYPE_FLOAT:
|
|
strcat(sqlStmt, pDb->typeInfFloat.TypeName); break;
|
|
case DB_DATA_TYPE_DATE:
|
|
strcat(sqlStmt, pDb->typeInfDate.TypeName); break;
|
|
}
|
|
// For varchars, append the size of the string
|
|
if (colDefs[i].DbDataType == DB_DATA_TYPE_VARCHAR)
|
|
{
|
|
char s[10];
|
|
// strcat(sqlStmt, "(");
|
|
// strcat(sqlStmt, itoa(colDefs[i].SzDataObj, s, 10));
|
|
// strcat(sqlStmt, ")");
|
|
sprintf(s, "(%d)", colDefs[i].SzDataObj);
|
|
strcat(sqlStmt, s);
|
|
}
|
|
|
|
#ifdef __WXGTK__
|
|
if (colDefs[i].KeyField)
|
|
{
|
|
strcat(sqlStmt, " NOT NULL");
|
|
}
|
|
#endif
|
|
|
|
needComma = TRUE;
|
|
}
|
|
// If there is a primary key defined, include it in the create statement
|
|
for (i = j = 0; i < noCols; i++)
|
|
{
|
|
if (colDefs[i].KeyField)
|
|
{
|
|
j++;
|
|
break;
|
|
}
|
|
}
|
|
if (j) // Found a keyfield
|
|
{
|
|
#ifndef __WXGTK__
|
|
/* MySQL goes out on this one. We also declare the relevant key NON NULL above */
|
|
strcat(sqlStmt, ",CONSTRAINT ");
|
|
strcat(sqlStmt, tableName);
|
|
strcat(sqlStmt, "_PIDX PRIMARY KEY (");
|
|
#else
|
|
strcat(sqlStmt, ", PRIMARY KEY (");
|
|
#endif
|
|
|
|
// List column name(s) of column(s) comprising the primary key
|
|
for (i = j = 0; i < noCols; i++)
|
|
{
|
|
if (colDefs[i].KeyField)
|
|
{
|
|
if (j++) // Multi part key, comma separate names
|
|
strcat(sqlStmt, ",");
|
|
strcat(sqlStmt, colDefs[i].ColName);
|
|
}
|
|
}
|
|
strcat(sqlStmt, ")");
|
|
}
|
|
// Append the closing parentheses for the create table statement
|
|
strcat(sqlStmt, ")");
|
|
|
|
pDb->WriteSqlLog(sqlStmt);
|
|
|
|
#ifdef _CONSOLE
|
|
cout << endl << sqlStmt << endl;
|
|
#endif
|
|
|
|
// Execute the CREATE TABLE statement
|
|
if (SQLExecDirect(hstmt, (UCHAR FAR *) sqlStmt, SQL_NTS) != SQL_SUCCESS)
|
|
{
|
|
pDb->DispAllErrors(henv, hdbc, hstmt);
|
|
pDb->RollbackTrans();
|
|
CloseCursor(hstmt);
|
|
return(FALSE);
|
|
}
|
|
|
|
// Commit the transaction and close the cursor
|
|
if (! pDb->CommitTrans())
|
|
return(FALSE);
|
|
if (! CloseCursor(hstmt))
|
|
return(FALSE);
|
|
|
|
// Database table created successfully
|
|
return(TRUE);
|
|
|
|
} // wxTable::CreateTable()
|
|
|
|
/********** wxTable::CreateIndex() **********/
|
|
bool wxTable::CreateIndex(char * idxName, bool unique, int noIdxCols, CidxDef *pIdxDefs)
|
|
{
|
|
char sqlStmt[DB_MAX_STATEMENT_LEN];
|
|
|
|
// Build a CREATE INDEX statement
|
|
strcpy(sqlStmt, "CREATE ");
|
|
if (unique)
|
|
strcat(sqlStmt, "UNIQUE ");
|
|
|
|
strcat(sqlStmt, "INDEX ");
|
|
strcat(sqlStmt, idxName);
|
|
strcat(sqlStmt, " ON ");
|
|
strcat(sqlStmt, tableName);
|
|
strcat(sqlStmt, " (");
|
|
|
|
// Append list of columns making up index
|
|
for (int i = 0; i < noIdxCols; i++)
|
|
{
|
|
strcat(sqlStmt, pIdxDefs[i].ColName);
|
|
|
|
/* Postgres doesnt cope with ASC */
|
|
#ifndef __WXGTK__
|
|
if (pIdxDefs[i].Ascending)
|
|
strcat(sqlStmt, " ASC");
|
|
else
|
|
strcat(sqlStmt, " DESC");
|
|
#endif
|
|
|
|
if ((i + 1) < noIdxCols)
|
|
strcat(sqlStmt, ", ");
|
|
}
|
|
|
|
// Append closing parentheses
|
|
strcat(sqlStmt, ")");
|
|
|
|
pDb->WriteSqlLog(sqlStmt);
|
|
|
|
#ifdef _CONSOLE
|
|
cout << endl << sqlStmt << endl << endl;
|
|
#endif
|
|
|
|
// Execute the CREATE INDEX statement
|
|
if (SQLExecDirect(hstmt, (UCHAR FAR *) sqlStmt, SQL_NTS) != SQL_SUCCESS)
|
|
{
|
|
pDb->DispAllErrors(henv, hdbc, hstmt);
|
|
pDb->RollbackTrans();
|
|
CloseCursor(hstmt);
|
|
return(FALSE);
|
|
}
|
|
|
|
// Commit the transaction and close the cursor
|
|
if (! pDb->CommitTrans())
|
|
return(FALSE);
|
|
if (! CloseCursor(hstmt))
|
|
return(FALSE);
|
|
|
|
// Index Created Successfully
|
|
return(TRUE);
|
|
|
|
} // wxTable::CreateIndex()
|
|
|
|
/********** wxTable::Insert() **********/
|
|
int wxTable::Insert(void)
|
|
{
|
|
// Insert the record by executing the already prepared insert statement
|
|
if (SQLExecute(hstmtInsert) != SQL_SUCCESS)
|
|
{
|
|
// Check to see if integrity constraint was violated
|
|
pDb->GetNextError(henv, hdbc, hstmtInsert);
|
|
if (! strcmp(pDb->sqlState, "23000")) // Integrity constraint violated
|
|
return(DB_ERR_INTEGRITY_CONSTRAINT_VIOL);
|
|
else
|
|
{
|
|
pDb->DispNextError();
|
|
pDb->DispAllErrors(henv, hdbc, hstmtInsert);
|
|
return(DB_FAILURE);
|
|
}
|
|
}
|
|
|
|
// Record inserted into the datasource successfully
|
|
return(DB_SUCCESS);
|
|
|
|
} // wxTable::Insert()
|
|
|
|
/********** wxTable::Update(pSqlStmt) **********/
|
|
bool wxTable::Update(char *pSqlStmt)
|
|
{
|
|
pDb->WriteSqlLog(pSqlStmt);
|
|
|
|
return(execUpdate(pSqlStmt));
|
|
|
|
} // wxTable::Update(pSqlStmt)
|
|
|
|
/********** wxTable::Update() **********/
|
|
bool wxTable::Update(void)
|
|
{
|
|
char sqlStmt[DB_MAX_STATEMENT_LEN];
|
|
|
|
// Build the SQL UPDATE statement
|
|
GetUpdateStmt(sqlStmt, DB_UPD_KEYFIELDS);
|
|
|
|
pDb->WriteSqlLog(sqlStmt);
|
|
|
|
#ifdef _CONSOLE
|
|
cout << endl << sqlStmt << endl << endl;
|
|
#endif
|
|
|
|
// Execute the SQL UPDATE statement
|
|
return(execUpdate(sqlStmt));
|
|
|
|
} // wxTable::Update()
|
|
|
|
/********** wxTable::UpdateWhere() **********/
|
|
bool wxTable::UpdateWhere(char *pWhereClause)
|
|
{
|
|
char sqlStmt[DB_MAX_STATEMENT_LEN];
|
|
|
|
// Build the SQL UPDATE statement
|
|
GetUpdateStmt(sqlStmt, DB_UPD_WHERE, pWhereClause);
|
|
|
|
pDb->WriteSqlLog(sqlStmt);
|
|
|
|
#ifdef _CONSOLE
|
|
cout << endl << sqlStmt << endl << endl;
|
|
#endif
|
|
|
|
// Execute the SQL UPDATE statement
|
|
return(execUpdate(sqlStmt));
|
|
|
|
} // wxTable::UpdateWhere()
|
|
|
|
/********** wxTable::Delete() **********/
|
|
bool wxTable::Delete(void)
|
|
{
|
|
char sqlStmt[DB_MAX_STATEMENT_LEN];
|
|
|
|
// Build the SQL DELETE statement
|
|
GetDeleteStmt(sqlStmt, DB_DEL_KEYFIELDS);
|
|
|
|
pDb->WriteSqlLog(sqlStmt);
|
|
|
|
// Execute the SQL DELETE statement
|
|
return(execDelete(sqlStmt));
|
|
|
|
} // wxTable::Delete()
|
|
|
|
/********** wxTable::DeleteWhere() **********/
|
|
bool wxTable::DeleteWhere(char *pWhereClause)
|
|
{
|
|
char sqlStmt[DB_MAX_STATEMENT_LEN];
|
|
|
|
// Build the SQL DELETE statement
|
|
GetDeleteStmt(sqlStmt, DB_DEL_WHERE, pWhereClause);
|
|
|
|
pDb->WriteSqlLog(sqlStmt);
|
|
|
|
// Execute the SQL DELETE statement
|
|
return(execDelete(sqlStmt));
|
|
|
|
} // wxTable::DeleteWhere()
|
|
|
|
/********** wxTable::DeleteMatching() **********/
|
|
bool wxTable::DeleteMatching(void)
|
|
{
|
|
char sqlStmt[DB_MAX_STATEMENT_LEN];
|
|
|
|
// Build the SQL DELETE statement
|
|
GetDeleteStmt(sqlStmt, DB_DEL_MATCHING);
|
|
|
|
pDb->WriteSqlLog(sqlStmt);
|
|
|
|
// Execute the SQL DELETE statement
|
|
return(execDelete(sqlStmt));
|
|
|
|
} // wxTable::DeleteMatching()
|
|
|
|
/********** wxTable::execDelete() **********/
|
|
bool wxTable::execDelete(char *pSqlStmt)
|
|
{
|
|
// Execute the DELETE statement
|
|
if (SQLExecDirect(hstmtDelete, (UCHAR FAR *) pSqlStmt, SQL_NTS) != SQL_SUCCESS)
|
|
return(pDb->DispAllErrors(henv, hdbc, hstmtDelete));
|
|
|
|
// Record deleted successfully
|
|
return(TRUE);
|
|
|
|
} // wxTable::execDelete()
|
|
|
|
/********** wxTable::execUpdate() **********/
|
|
bool wxTable::execUpdate(char *pSqlStmt)
|
|
{
|
|
// Execute the UPDATE statement
|
|
if (SQLExecDirect(hstmtUpdate, (UCHAR FAR *) pSqlStmt, SQL_NTS) != SQL_SUCCESS)
|
|
return(pDb->DispAllErrors(henv, hdbc, hstmtUpdate));
|
|
|
|
// Record deleted successfully
|
|
return(TRUE);
|
|
|
|
} // wxTable::execUpdate()
|
|
|
|
/********** wxTable::GetUpdateStmt() **********/
|
|
void wxTable::GetUpdateStmt(char *pSqlStmt, int typeOfUpd, char *pWhereClause)
|
|
{
|
|
char whereClause[DB_MAX_WHERE_CLAUSE_LEN];
|
|
bool firstColumn = TRUE;
|
|
|
|
whereClause[0] = 0;
|
|
sprintf(pSqlStmt, "UPDATE %s SET ", tableName);
|
|
|
|
// Append a list of columns to be updated
|
|
for (int i = 0; i < noCols; i++)
|
|
{
|
|
// Only append Updateable columns
|
|
if (colDefs[i].Updateable)
|
|
{
|
|
if (! firstColumn)
|
|
strcat(pSqlStmt, ",");
|
|
else
|
|
firstColumn = FALSE;
|
|
strcat(pSqlStmt, colDefs[i].ColName);
|
|
strcat(pSqlStmt, " = ?");
|
|
}
|
|
}
|
|
|
|
// Append the WHERE clause to the SQL UPDATE statement
|
|
strcat(pSqlStmt, " WHERE ");
|
|
switch(typeOfUpd)
|
|
{
|
|
case DB_UPD_KEYFIELDS:
|
|
// If the datasource supports the ROWID column, build
|
|
// the where on ROWID for efficiency purposes.
|
|
// e.g. UPDATE PARTS SET C1 = ?, C2 = ? WHERE ROWID = '111.222.333'
|
|
if (CanUpdByROWID())
|
|
{
|
|
SDWORD cb;
|
|
char rowid[ROWID_LEN];
|
|
|
|
// Get the ROWID value. If not successful retreiving the ROWID,
|
|
// simply fall down through the code and build the WHERE clause
|
|
// based on the key fields.
|
|
if (SQLGetData(hstmt, noCols+1, SQL_C_CHAR, (UCHAR*) rowid, ROWID_LEN, &cb) == SQL_SUCCESS)
|
|
{
|
|
strcat(pSqlStmt, "ROWID = '");
|
|
strcat(pSqlStmt, rowid);
|
|
strcat(pSqlStmt, "'");
|
|
break;
|
|
}
|
|
}
|
|
// Unable to delete by ROWID, so build a WHERE
|
|
// clause based on the keyfields.
|
|
GetWhereClause(whereClause, DB_WHERE_KEYFIELDS);
|
|
strcat(pSqlStmt, whereClause);
|
|
break;
|
|
case DB_UPD_WHERE:
|
|
strcat(pSqlStmt, pWhereClause);
|
|
break;
|
|
}
|
|
|
|
} // GetUpdateStmt()
|
|
|
|
/********** wxTable::GetDeleteStmt() **********/
|
|
void wxTable::GetDeleteStmt(char *pSqlStmt, int typeOfDel, char *pWhereClause)
|
|
{
|
|
char whereClause[DB_MAX_WHERE_CLAUSE_LEN];
|
|
|
|
whereClause[0] = 0;
|
|
|
|
// Handle the case of DeleteWhere() and the where clause is blank. It should
|
|
// delete all records from the database in this case.
|
|
if (typeOfDel == DB_DEL_WHERE && (pWhereClause == 0 || strlen(pWhereClause) == 0))
|
|
{
|
|
sprintf(pSqlStmt, "DELETE FROM %s", tableName);
|
|
return;
|
|
}
|
|
|
|
sprintf(pSqlStmt, "DELETE FROM %s WHERE ", tableName);
|
|
|
|
// Append the WHERE clause to the SQL DELETE statement
|
|
switch(typeOfDel)
|
|
{
|
|
case DB_DEL_KEYFIELDS:
|
|
// If the datasource supports the ROWID column, build
|
|
// the where on ROWID for efficiency purposes.
|
|
// e.g. DELETE FROM PARTS WHERE ROWID = '111.222.333'
|
|
if (CanUpdByROWID())
|
|
{
|
|
SDWORD cb;
|
|
char rowid[ROWID_LEN];
|
|
|
|
// Get the ROWID value. If not successful retreiving the ROWID,
|
|
// simply fall down through the code and build the WHERE clause
|
|
// based on the key fields.
|
|
if (SQLGetData(hstmt, noCols+1, SQL_C_CHAR, (UCHAR*) rowid, ROWID_LEN, &cb) == SQL_SUCCESS)
|
|
{
|
|
strcat(pSqlStmt, "ROWID = '");
|
|
strcat(pSqlStmt, rowid);
|
|
strcat(pSqlStmt, "'");
|
|
break;
|
|
}
|
|
}
|
|
// Unable to delete by ROWID, so build a WHERE
|
|
// clause based on the keyfields.
|
|
GetWhereClause(whereClause, DB_WHERE_KEYFIELDS);
|
|
strcat(pSqlStmt, whereClause);
|
|
break;
|
|
case DB_DEL_WHERE:
|
|
strcat(pSqlStmt, pWhereClause);
|
|
break;
|
|
case DB_DEL_MATCHING:
|
|
GetWhereClause(whereClause, DB_WHERE_MATCHING);
|
|
strcat(pSqlStmt, whereClause);
|
|
break;
|
|
}
|
|
|
|
} // GetDeleteStmt()
|
|
|
|
/********** wxTable::GetWhereClause() **********/
|
|
/*
|
|
* Note: GetWhereClause() currently ignores timestamp columns.
|
|
* They are not included as part of the where clause.
|
|
*/
|
|
|
|
void wxTable::GetWhereClause(char *pWhereClause, int typeOfWhere, char *qualTableName)
|
|
{
|
|
bool moreThanOneColumn = FALSE;
|
|
char colValue[255];
|
|
|
|
// Loop through the columns building a where clause as you go
|
|
for (int i = 0; i < noCols; i++)
|
|
{
|
|
// Determine if this column should be included in the WHERE clause
|
|
if ((typeOfWhere == DB_WHERE_KEYFIELDS && colDefs[i].KeyField) ||
|
|
(typeOfWhere == DB_WHERE_MATCHING && (! IsColNull(i))))
|
|
{
|
|
// Skip over timestamp columns
|
|
if (colDefs[i].SqlCtype == SQL_C_TIMESTAMP)
|
|
continue;
|
|
// If there is more than 1 column, join them with the keyword "AND"
|
|
if (moreThanOneColumn)
|
|
strcat(pWhereClause, " AND ");
|
|
else
|
|
moreThanOneColumn = TRUE;
|
|
// Concatenate where phrase for the column
|
|
if (qualTableName && strlen(qualTableName))
|
|
{
|
|
strcat(pWhereClause, qualTableName);
|
|
strcat(pWhereClause, ".");
|
|
}
|
|
strcat(pWhereClause, colDefs[i].ColName);
|
|
strcat(pWhereClause, " = ");
|
|
switch(colDefs[i].SqlCtype)
|
|
{
|
|
case SQL_C_CHAR:
|
|
sprintf(colValue, "'%s'", (UCHAR FAR *) colDefs[i].PtrDataObj);
|
|
break;
|
|
case SQL_C_SSHORT:
|
|
sprintf(colValue, "%hi", *((SWORD *) colDefs[i].PtrDataObj));
|
|
break;
|
|
case SQL_C_USHORT:
|
|
sprintf(colValue, "%hu", *((UWORD *) colDefs[i].PtrDataObj));
|
|
break;
|
|
case SQL_C_SLONG:
|
|
sprintf(colValue, "%li", *((SDWORD *) colDefs[i].PtrDataObj));
|
|
break;
|
|
case SQL_C_ULONG:
|
|
sprintf(colValue, "%lu", *((UDWORD *) colDefs[i].PtrDataObj));
|
|
break;
|
|
case SQL_C_FLOAT:
|
|
sprintf(colValue, "%.6f", *((SFLOAT *) colDefs[i].PtrDataObj));
|
|
break;
|
|
case SQL_C_DOUBLE:
|
|
sprintf(colValue, "%.6f", *((SDOUBLE *) colDefs[i].PtrDataObj));
|
|
break;
|
|
}
|
|
strcat(pWhereClause, colValue);
|
|
}
|
|
}
|
|
|
|
} // wxTable::GetWhereClause()
|
|
|
|
/********** wxTable::IsColNull() **********/
|
|
bool wxTable::IsColNull(int colNo)
|
|
{
|
|
switch(colDefs[colNo].SqlCtype)
|
|
{
|
|
case SQL_C_CHAR:
|
|
return(((UCHAR FAR *) colDefs[colNo].PtrDataObj)[0] == 0);
|
|
case SQL_C_SSHORT:
|
|
return(( *((SWORD *) colDefs[colNo].PtrDataObj)) == 0);
|
|
case SQL_C_USHORT:
|
|
return(( *((UWORD*) colDefs[colNo].PtrDataObj)) == 0);
|
|
case SQL_C_SLONG:
|
|
return(( *((SDWORD *) colDefs[colNo].PtrDataObj)) == 0);
|
|
case SQL_C_ULONG:
|
|
return(( *((UDWORD *) colDefs[colNo].PtrDataObj)) == 0);
|
|
case SQL_C_FLOAT:
|
|
return(( *((SFLOAT *) colDefs[colNo].PtrDataObj)) == 0);
|
|
case SQL_C_DOUBLE:
|
|
return((*((SDOUBLE *) colDefs[colNo].PtrDataObj)) == 0);
|
|
case SQL_C_TIMESTAMP:
|
|
TIMESTAMP_STRUCT *pDt;
|
|
pDt = (TIMESTAMP_STRUCT *) colDefs[colNo].PtrDataObj;
|
|
if (pDt->year == 0 && pDt->month == 0 && pDt->day == 0)
|
|
return(TRUE);
|
|
else
|
|
return(FALSE);
|
|
default:
|
|
return(TRUE);
|
|
}
|
|
|
|
} // wxTable::IsColNull()
|
|
|
|
/********** wxTable::CanSelectForUpdate() **********/
|
|
|
|
bool wxTable::CanSelectForUpdate(void)
|
|
{
|
|
#ifndef __WXGTK__
|
|
if (pDb->dbInf.posStmts & SQL_PS_SELECT_FOR_UPDATE)
|
|
return(TRUE);
|
|
else
|
|
#endif
|
|
return(FALSE);
|
|
|
|
} // wxTable::CanSelectForUpdate()
|
|
|
|
/********** wxTable::CanUpdByROWID() **********/
|
|
bool wxTable::CanUpdByROWID(void)
|
|
{
|
|
|
|
//NOTE: Returning FALSE for now until this can be debugged,
|
|
// as the ROWID is not getting updated correctly
|
|
return FALSE;
|
|
|
|
if ((! strcmp(pDb->dbInf.dbmsName, "Oracle")) || (! strcmp(pDb->dbInf.dbmsName, "ORACLE")))
|
|
return(TRUE);
|
|
else
|
|
return(FALSE);
|
|
|
|
} // wxTable::CanUpdByROWID()
|
|
|
|
/********** wxTable::IsCursorClosedOnCommit() **********/
|
|
bool wxTable::IsCursorClosedOnCommit(void)
|
|
{
|
|
if (pDb->dbInf.cursorCommitBehavior == SQL_CB_PRESERVE)
|
|
return(FALSE);
|
|
else
|
|
return(TRUE);
|
|
|
|
} // wxTable::IsCursorClosedOnCommit()
|
|
|
|
/********** wxTable::ClearMemberVars() **********/
|
|
void wxTable::ClearMemberVars(void)
|
|
{
|
|
// Loop through the columns setting each member variable to zero
|
|
for (int i = 0; i < noCols; i++)
|
|
{
|
|
switch(colDefs[i].SqlCtype)
|
|
{
|
|
case SQL_C_CHAR:
|
|
((UCHAR FAR *) colDefs[i].PtrDataObj)[0] = 0;
|
|
break;
|
|
case SQL_C_SSHORT:
|
|
*((SWORD *) colDefs[i].PtrDataObj) = 0;
|
|
break;
|
|
case SQL_C_USHORT:
|
|
*((UWORD*) colDefs[i].PtrDataObj) = 0;
|
|
break;
|
|
case SQL_C_SLONG:
|
|
*((SDWORD *) colDefs[i].PtrDataObj) = 0;
|
|
break;
|
|
case SQL_C_ULONG:
|
|
*((UDWORD *) colDefs[i].PtrDataObj) = 0;
|
|
break;
|
|
case SQL_C_FLOAT:
|
|
*((SFLOAT *) colDefs[i].PtrDataObj) = 0.0f;
|
|
break;
|
|
case SQL_C_DOUBLE:
|
|
*((SDOUBLE *) colDefs[i].PtrDataObj) = 0.0f;
|
|
break;
|
|
case SQL_C_TIMESTAMP:
|
|
TIMESTAMP_STRUCT *pDt;
|
|
pDt = (TIMESTAMP_STRUCT *) colDefs[i].PtrDataObj;
|
|
pDt->year = 0;
|
|
pDt->month = 0;
|
|
pDt->day = 0;
|
|
pDt->hour = 0;
|
|
pDt->minute = 0;
|
|
pDt->second = 0;
|
|
pDt->fraction = 0;
|
|
break;
|
|
}
|
|
}
|
|
|
|
} // wxTable::ClearMemberVars()
|
|
|
|
/********** wxTable::SetQueryTimeout() **********/
|
|
bool wxTable::SetQueryTimeout(UDWORD nSeconds)
|
|
{
|
|
if (SQLSetStmtOption(c0, SQL_QUERY_TIMEOUT, nSeconds) != SQL_SUCCESS)
|
|
return(pDb->DispAllErrors(henv, hdbc, c0));
|
|
if (SQLSetStmtOption(c1, SQL_QUERY_TIMEOUT, nSeconds) != SQL_SUCCESS)
|
|
return(pDb->DispAllErrors(henv, hdbc, c1));
|
|
if (SQLSetStmtOption(c2, SQL_QUERY_TIMEOUT, nSeconds) != SQL_SUCCESS)
|
|
return(pDb->DispAllErrors(henv, hdbc, c2));
|
|
// if (SQLSetStmtOption(c3, SQL_QUERY_TIMEOUT, nSeconds) != SQL_SUCCESS)
|
|
// return(pDb->DispAllErrors(henv, hdbc, c3));
|
|
// if (SQLSetStmtOption(c4, SQL_QUERY_TIMEOUT, nSeconds) != SQL_SUCCESS)
|
|
// return(pDb->DispAllErrors(henv, hdbc, c4));
|
|
// if (SQLSetStmtOption(c5, SQL_QUERY_TIMEOUT, nSeconds) != SQL_SUCCESS)
|
|
// return(pDb->DispAllErrors(henv, hdbc, c5));
|
|
if (SQLSetStmtOption(hstmtInsert, SQL_QUERY_TIMEOUT, nSeconds) != SQL_SUCCESS)
|
|
return(pDb->DispAllErrors(henv, hdbc, hstmtInsert));
|
|
if (SQLSetStmtOption(hstmtUpdate, SQL_QUERY_TIMEOUT, nSeconds) != SQL_SUCCESS)
|
|
return(pDb->DispAllErrors(henv, hdbc, hstmtUpdate));
|
|
if (SQLSetStmtOption(hstmtDelete, SQL_QUERY_TIMEOUT, nSeconds) != SQL_SUCCESS)
|
|
return(pDb->DispAllErrors(henv, hdbc, hstmtDelete));
|
|
if (SQLSetStmtOption(hstmtCount, SQL_QUERY_TIMEOUT, nSeconds) != SQL_SUCCESS)
|
|
return(pDb->DispAllErrors(henv, hdbc, hstmtCount));
|
|
|
|
// Completed Successfully
|
|
return(TRUE);
|
|
|
|
} // wxTable::SetQueryTimeout()
|
|
|
|
/********** wxTable::SetColDefs() **********/
|
|
void wxTable::SetColDefs (int index, char *fieldName, int dataType, void *pData,
|
|
int cType, int size, bool keyField, bool upd,
|
|
bool insAllow, bool derivedCol)
|
|
{
|
|
// Please, no uint, it doesn't exist for VC++
|
|
if (strlen(fieldName) > (unsigned int) DB_MAX_COLUMN_NAME_LEN) // glt 4/21/97
|
|
{
|
|
strncpy (colDefs[index].ColName, fieldName, DB_MAX_COLUMN_NAME_LEN);
|
|
colDefs[index].ColName[DB_MAX_COLUMN_NAME_LEN] = 0; // glt 10/23/97
|
|
}
|
|
else
|
|
strcpy(colDefs[index].ColName, fieldName);
|
|
|
|
colDefs[index].DbDataType = dataType;
|
|
colDefs[index].PtrDataObj = pData;
|
|
colDefs[index].SqlCtype = cType;
|
|
colDefs[index].SzDataObj = size;
|
|
colDefs[index].KeyField = keyField;
|
|
colDefs[index].DerivedCol = derivedCol;
|
|
// Derived columns by definition would NOT be "Insertable" or "Updateable"
|
|
if (derivedCol)
|
|
{
|
|
colDefs[index].Updateable = FALSE;
|
|
colDefs[index].InsertAllowed = FALSE;
|
|
}
|
|
else
|
|
{
|
|
colDefs[index].Updateable = upd;
|
|
colDefs[index].InsertAllowed = insAllow;
|
|
}
|
|
|
|
} // wxTable::SetColDefs()
|
|
|
|
/********** wxTable::SetCursor() **********/
|
|
bool wxTable::SetCursor(int cursorNo)
|
|
{
|
|
switch(cursorNo)
|
|
{
|
|
case DB_CURSOR0:
|
|
hstmt = c0;
|
|
// currCursorNo doesn't change since Cursor0 is a temp cursor
|
|
break;
|
|
case DB_CURSOR1:
|
|
hstmt = c1;
|
|
currCursorNo = DB_CURSOR1;
|
|
break;
|
|
case DB_CURSOR2:
|
|
hstmt = c2;
|
|
currCursorNo = DB_CURSOR2;
|
|
break;
|
|
// case DB_CURSOR3:
|
|
// hstmt = c3;
|
|
// currCursorNo = DB_CURSOR3;
|
|
// break;
|
|
// case DB_CURSOR4:
|
|
// hstmt = c4;
|
|
// currCursorNo = DB_CURSOR4;
|
|
// break;
|
|
// case DB_CURSOR5:
|
|
// hstmt = c5;
|
|
// currCursorNo = DB_CURSOR5;
|
|
// break;
|
|
default:
|
|
return(FALSE);
|
|
}
|
|
|
|
// Refresh the current record
|
|
#ifndef FWD_ONLY_CURSORS
|
|
UDWORD cRowsFetched;
|
|
UWORD rowStatus;
|
|
SQLExtendedFetch(hstmt, SQL_FETCH_NEXT, 0, &cRowsFetched, &rowStatus);
|
|
SQLExtendedFetch(hstmt, SQL_FETCH_PRIOR, 0, &cRowsFetched, &rowStatus);
|
|
#endif
|
|
|
|
// Completed successfully
|
|
return(TRUE);
|
|
|
|
} // wxTable::SetCursor()
|
|
|
|
/********** wxTable::Count() **********/
|
|
ULONG wxTable::Count(void)
|
|
{
|
|
ULONG l;
|
|
char sqlStmt[DB_MAX_STATEMENT_LEN];
|
|
SDWORD cb;
|
|
|
|
// Build a "SELECT COUNT(*) FROM queryTableName [WHERE whereClause]" SQL Statement
|
|
strcpy(sqlStmt, "SELECT COUNT(*) FROM ");
|
|
strcat(sqlStmt, queryTableName);
|
|
|
|
if (from && strlen(from))
|
|
strcat(sqlStmt, from);
|
|
|
|
// Add the where clause if one is provided
|
|
if (where && strlen(where))
|
|
{
|
|
strcat(sqlStmt, " WHERE ");
|
|
strcat(sqlStmt, where);
|
|
}
|
|
|
|
pDb->WriteSqlLog(sqlStmt);
|
|
|
|
// Execute the SQL statement
|
|
if (SQLExecDirect(hstmtCount, (UCHAR FAR *) sqlStmt, SQL_NTS) != SQL_SUCCESS)
|
|
{
|
|
pDb->DispAllErrors(henv, hdbc, hstmtCount);
|
|
return(0);
|
|
}
|
|
|
|
// Fetch the record
|
|
if (SQLFetch(hstmtCount) != SQL_SUCCESS)
|
|
{
|
|
pDb->DispAllErrors(henv, hdbc, hstmtCount);
|
|
return(0);
|
|
}
|
|
|
|
// Obtain the result
|
|
if (SQLGetData(hstmtCount, 1, SQL_C_ULONG, (UCHAR*) &l, sizeof(l), &cb) != SQL_SUCCESS)
|
|
{
|
|
pDb->DispAllErrors(henv, hdbc, hstmtCount);
|
|
return(0);
|
|
}
|
|
|
|
// Free the cursor
|
|
if (SQLFreeStmt(hstmtCount, SQL_CLOSE) != SQL_SUCCESS)
|
|
pDb->DispAllErrors(henv, hdbc, hstmtCount);
|
|
|
|
// Return the record count
|
|
return(l);
|
|
|
|
} // wxTable::Count()
|
|
|
|
/********** wxTable::Refresh() **********/
|
|
bool wxTable::Refresh(void)
|
|
{
|
|
bool result = TRUE;
|
|
|
|
// Switch to cursor 0
|
|
int cursorNo = GetCursor();
|
|
if (!SetCursor())
|
|
return(FALSE);
|
|
|
|
// Save the where and order by clauses
|
|
char *saveWhere = where;
|
|
char *saveOrderBy = orderBy;
|
|
|
|
// Build a where clause to refetch the record with. Try and use the
|
|
// ROWID if it's available, ow use the key fields.
|
|
char whereClause[DB_MAX_WHERE_CLAUSE_LEN+1];
|
|
strcpy(whereClause, "");
|
|
if (CanUpdByROWID())
|
|
{
|
|
SDWORD cb;
|
|
char rowid[ROWID_LEN+1];
|
|
|
|
// Get the ROWID value. If not successful retreiving the ROWID,
|
|
// simply fall down through the code and build the WHERE clause
|
|
// based on the key fields.
|
|
if (SQLGetData(hstmt, noCols+1, SQL_C_CHAR, (UCHAR*) rowid, ROWID_LEN, &cb) == SQL_SUCCESS)
|
|
{
|
|
strcat(whereClause, queryTableName);
|
|
strcat(whereClause, ".ROWID = '");
|
|
strcat(whereClause, rowid);
|
|
strcat(whereClause, "'");
|
|
}
|
|
}
|
|
|
|
// If unable to use the ROWID, build a where clause from the keyfields
|
|
if (strlen(whereClause) == 0)
|
|
GetWhereClause(whereClause, DB_WHERE_KEYFIELDS, queryTableName);
|
|
|
|
// Requery the record
|
|
where = whereClause;
|
|
orderBy = 0;
|
|
if (!Query())
|
|
result = FALSE;
|
|
|
|
if (result && !GetNext())
|
|
result = FALSE;
|
|
|
|
// Switch back to original cursor
|
|
if (!SetCursor(cursorNo))
|
|
result = FALSE;
|
|
|
|
// Restore the original where and order by clauses
|
|
where = saveWhere;
|
|
orderBy = saveOrderBy;
|
|
|
|
return(result);
|
|
|
|
} // wxTable::Refresh()
|
|
|
|
#endif
|
|
// wxUSE_ODBC
|
|
|