// Name: dbtable.cpp
// Purpose: Implementation of the wxTable class.
// Author: Doug Card
-// Modified by:
+// Mods: April 1999
+// -Dynamic cursor support - Only one predefined cursor, as many others as
+// you need may be created on demand
+// -Reduced number of active cursors significantly
+// -Query-Only wxTable objects
// Created: 9.96
// RCS-ID: $Id$
// Copyright: (c) 1996 Remstar International, Inc.
// Licence: wxWindows licence, plus:
-// Notice: This class library and its intellectual design are free of charge for use,
+// Notice: This class library and its intellectual design are free of charge for use,
// modification, enhancement, debugging under the following conditions:
// 1) These classes may only be used as part of the implementation of a
// wxWindows-based application
// the wxWindows GUI development toolkit.
///////////////////////////////////////////////////////////////////////////////
-#ifdef __GNUG__
-#pragma implementation "dbtable.h"
-#endif
-
/*
// SYNOPSIS START
// SYNOPSIS STOP
*/
-/*
-#ifdef _CONSOLE
- #include <iostream.h>
+// Use this line for wxWindows v1.x
+//#include "wx_ver.h"
+// Use this line for wxWindows v2.x
+#include "wx/version.h"
+#include "wx/wxprec.h"
+
+#if wxMAJOR_VERSION == 2
+# ifdef __GNUG__
+# pragma implementation "dbtable.h"
+# endif
#endif
-*/
-#include "wx/wxprec.h"
+#ifdef DBDEBUG_CONSOLE
+# include <iostream.h>
+#endif
#ifdef __BORLANDC__
#pragma hdrstop
#endif //__BORLANDC__
-#ifndef WX_PRECOMP
- #include <wx/wx.h>
-#endif //WX_PRECOMP
+#if wxMAJOR_VERSION == 2
+# ifndef WX_PRECOMP
+# include <wx/wx.h>
+# endif //WX_PRECOMP
+#endif
-#if wxUSE_ODBC
+#if wxMAJOR_VERSION == 1
+# if defined(wx_msw) || defined(wx_x)
+# ifdef WX_PRECOMP
+# include "wx_prec.h"
+# else
+# include "wx.h"
+# endif
+# endif
+# define wxUSE_ODBC 1
+#endif
-#include <wx/dbtable.h>
+#if wxUSE_ODBC
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <assert.h>
+#if wxMAJOR_VERSION == 1
+ #include "table.h"
+#elif wxMAJOR_VERSION == 2
+ #include "wx/dbtable.h"
+#endif
#ifdef __UNIX__
// The HPUX preprocessor lines below were commented out on 8/20/97
# endif
#endif
+ULONG lastTableID = 0;
+
+
+#if __WXDEBUG__ > 0
+ wxList TablesInUse;
+#endif
+
+
/********** wxTable::wxTable() **********/
-wxTable::wxTable(wxDB *pwxDB, const char *tblName, const int nCols, const char *qryTblName)
+wxTable::wxTable(wxDB *pwxDB, const char *tblName, const int nCols,
+ const char *qryTblName, bool qryOnly, char *tblPath)
{
- // Assign member variables
- pDb = pwxDB; // Pointer to the wxDB object
+ pDb = pwxDB; // Pointer to the wxDB object
+ henv = 0;
+ hdbc = 0;
+ hstmt = 0;
+ hstmtDefault = 0; // Initialized below
+ hstmtCount = 0; // Initialized first time it is needed
+ hstmtInsert = 0;
+ hstmtDelete = 0;
+ hstmtUpdate = 0;
+ hstmtInternal = 0;
+ colDefs = 0;
+ tableID = 0;
+ noCols = nCols; // No. of cols in the table
+ where = 0; // Where clause
+ orderBy = 0; // Order By clause
+ from = 0; // From clause
+ selectForUpdate = FALSE; // SELECT ... FOR UPDATE; Indicates whether to include the FOR UPDATE phrase
+ queryOnly = qryOnly;
+
+ assert (tblName);
strcpy(tableName, tblName); // Table Name
+ if (tblPath)
+ strcpy(tablePath, tblPath); // Table Path - used for dBase files
+
if (qryTblName) // Name of the table/view to query
strcpy(queryTableName, qryTblName);
else
strcpy(queryTableName, tblName);
- assert(pDb); // Assert is placed after table name is assigned for error reporting reasons
+// assert(pDb); // Assert is placed after table name is assigned for error reporting reasons
if (!pDb)
return;
- noCols = nCols; // No. of cols in the table
- where = 0; // Where clause
- orderBy = 0; // Order By clause
- from = 0; // From clause
- selectForUpdate = FALSE; // SELECT ... FOR UPDATE; Indicates whether to include the FOR UPDATE phrase
+ pDb->nTables++;
+
+ char s[200];
+ tableID = ++lastTableID;
+ sprintf(s, "wxTable constructor (%-20s) tableID:[%6lu] pDb:[%p]", tblName,tableID,pDb);
+
+#if __WXDEBUG__ > 0
+ CstructTablesInUse *tableInUse;
+ tableInUse = new CstructTablesInUse();
+ tableInUse->tableName = tblName;
+ tableInUse->tableID = tableID;
+ tableInUse->pDb = pDb;
+ TablesInUse.Append(tableInUse);
+#endif
+
+ pDb->WriteSqlLog(s);
// Grab the HENV and HDBC from the wxDB object
henv = pDb->henv;
// Allocate space for column definitions
if (noCols)
colDefs = new CcolDef[noCols]; // Points to the first column defintion
- else
- colDefs = 0;
// Allocate statement handles for the table
- if (SQLAllocStmt(hdbc, &c0) != SQL_SUCCESS)
- pDb->DispAllErrors(henv, hdbc);
- if (SQLAllocStmt(hdbc, &c1) != SQL_SUCCESS)
- pDb->DispAllErrors(henv, hdbc);
- if (SQLAllocStmt(hdbc, &c2) != SQL_SUCCESS)
- pDb->DispAllErrors(henv, hdbc);
-// if (SQLAllocStmt(hdbc, &c3) != SQL_SUCCESS)
-// pDb->DispAllErrors(henv, hdbc);
-// if (SQLAllocStmt(hdbc, &c4) != SQL_SUCCESS)
-// pDb->DispAllErrors(henv, hdbc);
-// if (SQLAllocStmt(hdbc, &c5) != SQL_SUCCESS)
-// pDb->DispAllErrors(henv, hdbc);
- // Allocate a separate statement handle for performing inserts
- if (SQLAllocStmt(hdbc, &hstmtInsert) != SQL_SUCCESS)
- pDb->DispAllErrors(henv, hdbc);
- // Allocate a separate statement handle for performing deletes
- if (SQLAllocStmt(hdbc, &hstmtDelete) != SQL_SUCCESS)
- pDb->DispAllErrors(henv, hdbc);
- // Allocate a separate statement handle for performing updates
- if (SQLAllocStmt(hdbc, &hstmtUpdate) != SQL_SUCCESS)
- pDb->DispAllErrors(henv, hdbc);
- // Allocate a separate statement handle for performing count(*) function
- if (SQLAllocStmt(hdbc, &hstmtCount) != SQL_SUCCESS)
+ if (!queryOnly)
+ {
+ // Allocate a separate statement handle for performing inserts
+ if (SQLAllocStmt(hdbc, &hstmtInsert) != SQL_SUCCESS)
+ pDb->DispAllErrors(henv, hdbc);
+ // Allocate a separate statement handle for performing deletes
+ if (SQLAllocStmt(hdbc, &hstmtDelete) != SQL_SUCCESS)
+ pDb->DispAllErrors(henv, hdbc);
+ // Allocate a separate statement handle for performing updates
+ if (SQLAllocStmt(hdbc, &hstmtUpdate) != SQL_SUCCESS)
+ pDb->DispAllErrors(henv, hdbc);
+ }
+ // Allocate a separate statement handle for internal use
+ if (SQLAllocStmt(hdbc, &hstmtInternal) != SQL_SUCCESS)
pDb->DispAllErrors(henv, hdbc);
// Set the cursor type for the statement handles
- UDWORD cursorType = SQL_CURSOR_STATIC;
- if (SQLSetStmtOption(c1, SQL_CURSOR_TYPE, cursorType) != SQL_SUCCESS)
+ cursorType = SQL_CURSOR_STATIC;
+ if (SQLSetStmtOption(hstmtInternal, SQL_CURSOR_TYPE, cursorType) != SQL_SUCCESS)
{
// Check to see if cursor type is supported
- pDb->GetNextError(henv, hdbc, c1);
+ pDb->GetNextError(henv, hdbc, hstmtInternal);
if (! strcmp(pDb->sqlState, "01S02")) // Option Value Changed
{
// Datasource does not support static cursors. Driver
// will substitute a cursor type. Call SQLGetStmtOption()
// to determine which cursor type was selected.
- if (SQLGetStmtOption(c1, SQL_CURSOR_TYPE, (UCHAR*) &cursorType) != SQL_SUCCESS)
- pDb->DispAllErrors(henv, hdbc, c1);
-#ifdef _CONSOLE
+ if (SQLGetStmtOption(hstmtInternal, SQL_CURSOR_TYPE, &cursorType) != SQL_SUCCESS)
+ pDb->DispAllErrors(henv, hdbc, hstmtInternal);
+#ifdef DBDEBUG_CONSOLE
cout << "Static cursor changed to: ";
switch(cursorType)
{
else
{
pDb->DispNextError();
- pDb->DispAllErrors(henv, hdbc, c1);
+ pDb->DispAllErrors(henv, hdbc, hstmtInternal);
}
}
-#ifdef _CONSOLE
+#ifdef DBDEBUG_CONSOLE
else
cout << "Cursor Type set to STATIC" << endl << endl;
#endif
- if (SQLSetStmtOption(c0, SQL_CURSOR_TYPE, cursorType) != SQL_SUCCESS)
- pDb->DispAllErrors(henv, hdbc, c0);
- if (SQLSetStmtOption(c2, SQL_CURSOR_TYPE, cursorType) != SQL_SUCCESS)
- pDb->DispAllErrors(henv, hdbc, c2);
-// if (SQLSetStmtOption(c3, SQL_CURSOR_TYPE, cursorType) != SQL_SUCCESS)
-// pDb->DispAllErrors(henv, hdbc, c3);
-// if (SQLSetStmtOption(c4, SQL_CURSOR_TYPE, cursorType) != SQL_SUCCESS)
-// pDb->DispAllErrors(henv, hdbc, c4);
-// if (SQLSetStmtOption(c5, SQL_CURSOR_TYPE, cursorType) != SQL_SUCCESS)
-// pDb->DispAllErrors(henv, hdbc, c5);
-
- // Set the cursor type for the INSERT statement handle
- if (SQLSetStmtOption(hstmtInsert, SQL_CURSOR_TYPE, SQL_CURSOR_FORWARD_ONLY) != SQL_SUCCESS)
- pDb->DispAllErrors(henv, hdbc, hstmtInsert);
- // Set the cursor type for the DELETE statement handle
- if (SQLSetStmtOption(hstmtDelete, SQL_CURSOR_TYPE, SQL_CURSOR_FORWARD_ONLY) != SQL_SUCCESS)
- pDb->DispAllErrors(henv, hdbc, hstmtDelete);
- // Set the cursor type for the UPDATE statement handle
- if (SQLSetStmtOption(hstmtUpdate, SQL_CURSOR_TYPE, SQL_CURSOR_FORWARD_ONLY) != SQL_SUCCESS)
- pDb->DispAllErrors(henv, hdbc, hstmtUpdate);
- // Set the cursor type for the COUNT(*) statement handle
- if (SQLSetStmtOption(hstmtCount, SQL_CURSOR_TYPE, SQL_CURSOR_FORWARD_ONLY) != SQL_SUCCESS)
- pDb->DispAllErrors(henv, hdbc, hstmtCount);
-
- // Copy cursor 1 to the default cursor
- hstmt = c1;
- currCursorNo = DB_CURSOR1;
+ if (!queryOnly)
+ {
+ // Set the cursor type for the INSERT statement handle
+ if (SQLSetStmtOption(hstmtInsert, SQL_CURSOR_TYPE, SQL_CURSOR_FORWARD_ONLY) != SQL_SUCCESS)
+ pDb->DispAllErrors(henv, hdbc, hstmtInsert);
+ // Set the cursor type for the DELETE statement handle
+ if (SQLSetStmtOption(hstmtDelete, SQL_CURSOR_TYPE, SQL_CURSOR_FORWARD_ONLY) != SQL_SUCCESS)
+ pDb->DispAllErrors(henv, hdbc, hstmtDelete);
+ // Set the cursor type for the UPDATE statement handle
+ if (SQLSetStmtOption(hstmtUpdate, SQL_CURSOR_TYPE, SQL_CURSOR_FORWARD_ONLY) != SQL_SUCCESS)
+ pDb->DispAllErrors(henv, hdbc, hstmtUpdate);
+ }
+
+ // Make the default cursor the active cursor
+ hstmtDefault = NewCursor(FALSE,FALSE);
+ assert(hstmtDefault);
+ hstmt = *hstmtDefault;
} // wxTable::wxTable()
/********** wxTable::~wxTable() **********/
wxTable::~wxTable()
{
+ char s[80];
+ if (pDb)
+ {
+ sprintf(s, "wxTable destructor (%-20s) tableID:[%6lu] pDb:[%p]", tableName,tableID,pDb);
+ pDb->WriteSqlLog(s);
+ }
+
+#ifndef PROGRAM_FP4UPG
+#if __WXDEBUG__ > 0
+ if (tableID)
+ {
+ bool found = FALSE;
+ wxNode *pNode;
+ pNode = TablesInUse.First();
+ while (pNode && !found)
+ {
+ if (((CstructTablesInUse *)pNode->Data())->tableID == tableID)
+ {
+ found = TRUE;
+ if (!TablesInUse.DeleteNode(pNode))
+ wxMessageBox (s,"Unable to delete node!");
+ }
+ else
+ pNode = pNode->Next();
+ }
+ if (!found)
+ {
+ char msg[250];
+ sprintf(msg,"Unable to find the tableID in the linked\nlist of tables in use.\n\n%s",s);
+ wxMessageBox (msg,"NOTICE...");
+ }
+ }
+#endif
+#endif
+ // Decrement the wxDB table count
+ if (pDb)
+ pDb->nTables--;
+
// Delete memory allocated for column definitions
if (colDefs)
delete [] colDefs;
// Free statement handles
- if (SQLFreeStmt(c0, SQL_DROP) != SQL_SUCCESS)
- pDb->DispAllErrors(henv, hdbc);
- if (SQLFreeStmt(c1, SQL_DROP) != SQL_SUCCESS)
- pDb->DispAllErrors(henv, hdbc);
- if (SQLFreeStmt(c2, SQL_DROP) != SQL_SUCCESS)
- pDb->DispAllErrors(henv, hdbc);
-// if (SQLFreeStmt(c3, SQL_DROP) != SQL_SUCCESS)
-// pDb->DispAllErrors(henv, hdbc);
-// if (SQLFreeStmt(c4, SQL_DROP) != SQL_SUCCESS)
-// pDb->DispAllErrors(henv, hdbc);
-// if (SQLFreeStmt(c5, SQL_DROP) != SQL_SUCCESS)
-// pDb->DispAllErrors(henv, hdbc);
- if (SQLFreeStmt(hstmtInsert, SQL_DROP) != SQL_SUCCESS)
- pDb->DispAllErrors(henv, hdbc);
- if (SQLFreeStmt(hstmtDelete, SQL_DROP) != SQL_SUCCESS)
- pDb->DispAllErrors(henv, hdbc);
- if (SQLFreeStmt(hstmtUpdate, SQL_DROP) != SQL_SUCCESS)
- pDb->DispAllErrors(henv, hdbc);
- if (SQLFreeStmt(hstmtCount, SQL_DROP) != SQL_SUCCESS)
- pDb->DispAllErrors(henv, hdbc);
+ if (!queryOnly)
+ {
+ if (hstmtInsert)
+ if (SQLFreeStmt(hstmtInsert, SQL_DROP) != SQL_SUCCESS)
+ pDb->DispAllErrors(henv, hdbc);
+ if (hstmtDelete)
+ if (SQLFreeStmt(hstmtDelete, SQL_DROP) != SQL_SUCCESS)
+ pDb->DispAllErrors(henv, hdbc);
+ if (hstmtUpdate)
+ if (SQLFreeStmt(hstmtUpdate, SQL_DROP) != SQL_SUCCESS)
+ pDb->DispAllErrors(henv, hdbc);
+ }
+ if (hstmtInternal)
+ if (SQLFreeStmt(hstmtInternal, SQL_DROP) != SQL_SUCCESS)
+ pDb->DispAllErrors(henv, hdbc);
+
+ // Delete dynamically allocated cursors
+ if (hstmtDefault)
+ DeleteCursor(hstmtDefault);
+ if (hstmtCount)
+ DeleteCursor(hstmtCount);
} // wxTable::~wxTable()
char sqlStmt[DB_MAX_STATEMENT_LEN];
// Verify that the table exists in the database
- if (!pDb->TableExists(tableName))
+ if (!pDb->TableExists(tableName,NULL,tablePath))
{
char s[128];
sprintf(s, "Error opening '%s', table/view does not exist in the database.", tableName);
// Bind the member variables for field exchange between
// the wxTable object and the ODBC record.
- if(! bindInsertParams()) // Inserts
- return(FALSE);
- if(! bindUpdateParams()) // Updates
- return(FALSE);
- if(! bindCols(c0)) // Selects
- return(FALSE);
- if(! bindCols(c1))
+ if (!queryOnly)
+ {
+ if (!bindInsertParams()) // Inserts
+ return(FALSE);
+ if (!bindUpdateParams()) // Updates
+ return(FALSE);
+ }
+ if (!bindCols(*hstmtDefault)) // Selects
return(FALSE);
- if(! bindCols(c2))
+ if (!bindCols(hstmtInternal)) // Internal use only
return(FALSE);
-// if(! bindCols(c3))
-// return(FALSE);
-// if(! bindCols(c4))
-// return(FALSE);
-// if(! bindCols(c5))
-// return(FALSE);
+ /*
+ * Do NOT bind the hstmtCount cursor!!!
+ */
// Build an insert statement using parameter markers
- if (noCols > 0)
+ if (!queryOnly && noCols > 0)
{
bool needComma = FALSE;
sprintf(sqlStmt, "INSERT INTO %s (", tableName);
}
strcat(sqlStmt, ")");
- pDb->WriteSqlLog(sqlStmt);
+// pDb->WriteSqlLog(sqlStmt);
// Prepare the insert statement for execution
if (SQLPrepare(hstmtInsert, (UCHAR FAR *) sqlStmt, SQL_NTS) != SQL_SUCCESS)
return(FALSE);
// Execute the SQL SELECT statement
- if (SQLExecDirect(hstmt, (UCHAR FAR *) (queryType == DB_SELECT_STATEMENT ? pSqlStmt : sqlStmt),
- SQL_NTS) != SQL_SUCCESS)
+ int retcode;
+
+ retcode = SQLExecDirect(hstmt, (UCHAR FAR *) (queryType == DB_SELECT_STATEMENT ? pSqlStmt : sqlStmt), SQL_NTS);
+ if (retcode != SQL_SUCCESS && retcode != SQL_SUCCESS_WITH_INFO)
return(pDb->DispAllErrors(henv, hdbc, hstmt));
// Completed successfully
appendFromClause = TRUE;
// Add the column list
- for (int i = 0; i < noCols; i++)
+ int i;
+ for (i = 0; i < noCols; i++)
{
// If joining tables, the base table column names must be qualified to avoid ambiguity
if (appendFromClause)
// Append the FROM tablename portion
strcat(pSqlStmt, " FROM ");
strcat(pSqlStmt, queryTableName);
+
+ // Sybase uses the HOLDLOCK keyword to lock a record during query.
+ // The HOLDLOCK keyword follows the table name in the from clause.
+ // Each table in the from clause must specify HOLDLOCK or
+ // NOHOLDLOCK (the default). Note: The "FOR UPDATE" clause
+ // is parsed but ignored in SYBASE Transact-SQL.
+ if (selectForUpdate && (pDb->Dbms() == dbmsSYBASE_ASA || pDb->Dbms() == dbmsSYBASE_ASE))
+ strcat(pSqlStmt, " HOLDLOCK");
+
if (appendFromClause)
strcat(pSqlStmt, from);
strcat(pSqlStmt, orderBy);
}
- // SELECT FOR UPDATE if told to do so and the datasource is capable
+ // SELECT FOR UPDATE if told to do so and the datasource is capable. Sybase
+ // parses the FOR UPDATE clause but ignores it. See the comment above on the
+ // HOLDLOCK for Sybase.
if (selectForUpdate && CanSelectForUpdate())
strcat(pSqlStmt, " FOR UPDATE");
return(pDb->DispAllErrors(henv, hdbc, hstmt));
#else
// Fetch the next record from the record set
- if ((retcode = SQLFetch(hstmt)) != SQL_SUCCESS)
+
+ retcode = SQLFetch(hstmt);
+ if (retcode != SQL_SUCCESS && retcode != SQL_SUCCESS_WITH_INFO)
+ {
if (retcode == SQL_NO_DATA_FOUND)
return(FALSE);
else
return(pDb->DispAllErrors(henv, hdbc, hstmt));
+ }
#endif
// Completed successfully
/********** wxTable::bindInsertParams() **********/
bool wxTable::bindInsertParams(void)
{
- SWORD fSqlType;
- UDWORD precision;
- SWORD scale;
+ assert(!queryOnly);
+ if (queryOnly)
+ return(FALSE);
+
+ 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++)
+ int i;
+ for (i = 0; i < noCols; i++)
{
if (! colDefs[i].InsertAllowed)
continue;
colDefs[i].CbValue = 0;
break;
}
+ // Null values
+ if (colDefs[i].Null)
+ {
+ colDefs[i].CbValue = SQL_NULL_DATA;
+ colDefs[i].Null = FALSE;
+ }
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)
/********** wxTable::bindUpdateParams() **********/
bool wxTable::bindUpdateParams(void)
{
- SWORD fSqlType;
- UDWORD precision;
- SWORD scale;
+ assert(!queryOnly);
+ if (queryOnly)
+ return(FALSE);
+
+ 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++)
+ int i,colNo;
+ for (i = 0, colNo = 1; i < noCols; i++)
{
if (! colDefs[i].Updateable)
continue;
static SDWORD cb;
// Bind each column of the table to a memory address for fetching data
- for (int i = 0; i < noCols; i++)
+ int i;
+ for (i = 0; i < noCols; i++)
{
if (SQLBindCol(cursor, i+1, colDefs[i].SqlCtype, (UCHAR*) colDefs[i].PtrDataObj,
colDefs[i].SzDataObj, &cb) != SQL_SUCCESS)
} // wxTable::CloseCursor()
/********** wxTable::CreateTable() **********/
-bool wxTable::CreateTable(void)
+bool wxTable::CreateTable(bool attemptDrop)
{
if (!pDb)
return FALSE;
int i, j;
char sqlStmt[DB_MAX_STATEMENT_LEN];
-#ifdef _CONSOLE
+#ifdef DBDEBUG_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 */
-
- pDb->GetNextError(henv, hdbc, hstmt);
- if (strcmp(pDb->sqlState, "S0002") &&
- 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);
+ // Drop table first
+ if (attemptDrop && !DropTable())
+ return FALSE;
// Create the table
-#ifdef _CONSOLE
+#ifdef DBDEBUG_CONSOLE
for (i = 0; i < noCols; i++)
{
// Exclude derived columns since they are NOT part of the base table
sprintf(s, "(%d)", colDefs[i].SzDataObj);
strcat(sqlStmt, s);
}
+
+ if (pDb->Dbms() == dbmsSYBASE_ASE || pDb->Dbms() == dbmsMY_SQL)
+ {
+ if (colDefs[i].KeyField)
+ {
+ strcat(sqlStmt, " NOT NULL");
+ }
+ }
+
needComma = TRUE;
}
// If there is a primary key defined, include it in the create statement
break;
}
}
- if (j) // Found a keyfield
+ if (j && pDb->Dbms() != dbmsDBASE) // Found a keyfield
{
- strcat(sqlStmt, ",CONSTRAINT ");
- strcat(sqlStmt, tableName);
- strcat(sqlStmt, "_PIDX PRIMARY KEY (");
+ if (pDb->Dbms() != dbmsMY_SQL)
+ {
+ strcat(sqlStmt, ",CONSTRAINT ");
+ strcat(sqlStmt, tableName);
+ strcat(sqlStmt, "_PIDX PRIMARY KEY (");
+ }
+ else
+ {
+ /* MySQL goes out on this one. We also declare the relevant key NON NULL above */
+ strcat(sqlStmt, ", PRIMARY KEY (");
+ }
+
// List column name(s) of column(s) comprising the primary key
for (i = j = 0; i < noCols; i++)
{
pDb->WriteSqlLog(sqlStmt);
-#ifdef _CONSOLE
+#ifdef DBDEBUG_CONSOLE
cout << endl << sqlStmt << endl;
#endif
} // wxTable::CreateTable()
+/********** wxTable::DropTable() **********/
+bool wxTable::DropTable()
+{
+ // NOTE: This function returns TRUE if the Table does not exist, but
+ // only for identified databases. Code will need to be added
+ // below for any other databases when those databases are defined
+ // to handle this situation consistently
+
+ char sqlStmt[DB_MAX_STATEMENT_LEN];
+
+ sprintf(sqlStmt, "DROP TABLE %s", tableName);
+
+ pDb->WriteSqlLog(sqlStmt);
+
+#ifdef DBDEBUG_CONSOLE
+ cout << endl << sqlStmt << endl;
+#endif
+
+ if (SQLExecDirect(hstmt, (UCHAR FAR *) sqlStmt, SQL_NTS) != SQL_SUCCESS)
+ {
+ // Check for "Base table not found" error and ignore
+ pDb->GetNextError(henv, hdbc, hstmt);
+ if (strcmp(pDb->sqlState,"S0002")) // "Base table not found"
+ {
+ // Check for product specific error codes
+ if (!((pDb->Dbms() == dbmsSYBASE_ASA && !strcmp(pDb->sqlState,"42000")) || // 5.x (and lower?)
+ (pDb->Dbms() == dbmsMY_SQL && !strcmp(pDb->sqlState,"S1000")) || // untested
+ (pDb->Dbms() == dbmsPOSTGRES && !strcmp(pDb->sqlState,"08S01")))) // untested
+ {
+ pDb->DispNextError();
+ 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);
+
+ return(TRUE);
+} // wxTable::DropTable()
+
/********** wxTable::CreateIndex() **********/
-bool wxTable::CreateIndex(char * idxName, bool unique, int noIdxCols, CidxDef *pIdxDefs)
+bool wxTable::CreateIndex(char * idxName, bool unique, int noIdxCols, CidxDef *pIdxDefs, bool attemptDrop)
{
char sqlStmt[DB_MAX_STATEMENT_LEN];
+ // Drop the index first
+ if (attemptDrop && !DropIndex(idxName))
+ return (FALSE);
+
// Build a CREATE INDEX statement
strcpy(sqlStmt, "CREATE ");
if (unique)
strcat(sqlStmt, " (");
// Append list of columns making up index
- for (int i = 0; i < noIdxCols; i++)
+ int i;
+ for (i = 0; i < noIdxCols; i++)
{
strcat(sqlStmt, pIdxDefs[i].ColName);
- if (pIdxDefs[i].Ascending)
- strcat(sqlStmt, " ASC");
- else
- strcat(sqlStmt, " DESC");
+ /* Postgres doesn't cope with ASC */
+ if (pDb->Dbms() != dbmsPOSTGRES)
+ {
+ if (pIdxDefs[i].Ascending)
+ strcat(sqlStmt, " ASC");
+ else
+ strcat(sqlStmt, " DESC");
+ }
+
if ((i + 1) < noIdxCols)
- strcat(sqlStmt, ", ");
+ strcat(sqlStmt, ",");
}
// Append closing parentheses
pDb->WriteSqlLog(sqlStmt);
-#ifdef _CONSOLE
+#ifdef DBDEBUG_CONSOLE
cout << endl << sqlStmt << endl << endl;
#endif
} // wxTable::CreateIndex()
+/********** wxTable::DropIndex() **********/
+bool wxTable::DropIndex(char * idxName)
+{
+ // NOTE: This function returns TRUE if the Index does not exist, but
+ // only for identified databases. Code will need to be added
+ // below for any other databases when those databases are defined
+ // to handle this situation consistently
+
+ char sqlStmt[DB_MAX_STATEMENT_LEN];
+
+ if (pDb->Dbms() == dbmsACCESS)
+ sprintf(sqlStmt, "DROP INDEX %s ON %s",idxName,tableName);
+ else if (pDb->Dbms() == dbmsSYBASE_ASE)
+ sprintf(sqlStmt, "DROP INDEX %s.%s",tableName,idxName);
+ else
+ sprintf(sqlStmt, "DROP INDEX %s",idxName);
+
+ pDb->WriteSqlLog(sqlStmt);
+
+#ifdef DBDEBUG_CONSOLE
+ cout << endl << sqlStmt << endl;
+#endif
+
+ if (SQLExecDirect(hstmt, (UCHAR FAR *) sqlStmt, SQL_NTS) != SQL_SUCCESS)
+ {
+ // Check for "Index not found" error and ignore
+ pDb->GetNextError(henv, hdbc, hstmt);
+ if (strcmp(pDb->sqlState,"S0012")) // "Index not found"
+ {
+ // Check for product specific error codes
+ if (!((pDb->Dbms() == dbmsSYBASE_ASA && !strcmp(pDb->sqlState,"42000")) || // v5.x (and lower?)
+ (pDb->Dbms() == dbmsSYBASE_ASE && !strcmp(pDb->sqlState,"S0002")) || // Base table not found
+ (pDb->Dbms() == dbmsMY_SQL && !strcmp(pDb->sqlState,"42S02")) // untested
+ ))
+ {
+ pDb->DispNextError();
+ 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);
+
+ return(TRUE);
+} // wxTable::DropIndex()
+
/********** wxTable::Insert() **********/
int wxTable::Insert(void)
{
+ assert(!queryOnly);
+ if (queryOnly)
+ return(DB_FAILURE);
+
+ bindInsertParams();
+
// Insert the record by executing the already prepared insert statement
- if (SQLExecute(hstmtInsert) != SQL_SUCCESS)
+ RETCODE retcode;
+ retcode=SQLExecute(hstmtInsert);
+ if (retcode != SQL_SUCCESS && retcode != SQL_SUCCESS_WITH_INFO)
{
// Check to see if integrity constraint was violated
pDb->GetNextError(henv, hdbc, hstmtInsert);
/********** wxTable::Update(pSqlStmt) **********/
bool wxTable::Update(char *pSqlStmt)
{
+ assert(!queryOnly);
+ if (queryOnly)
+ return(FALSE);
+
pDb->WriteSqlLog(pSqlStmt);
return(execUpdate(pSqlStmt));
/********** wxTable::Update() **********/
bool wxTable::Update(void)
{
+ assert(!queryOnly);
+ if (queryOnly)
+ return(FALSE);
+
char sqlStmt[DB_MAX_STATEMENT_LEN];
// Build the SQL UPDATE statement
pDb->WriteSqlLog(sqlStmt);
-#ifdef _CONSOLE
+#ifdef DBDEBUG_CONSOLE
cout << endl << sqlStmt << endl << endl;
#endif
/********** wxTable::UpdateWhere() **********/
bool wxTable::UpdateWhere(char *pWhereClause)
{
+ assert(!queryOnly);
+ if (queryOnly)
+ return(FALSE);
+
char sqlStmt[DB_MAX_STATEMENT_LEN];
// Build the SQL UPDATE statement
pDb->WriteSqlLog(sqlStmt);
-#ifdef _CONSOLE
+#ifdef DBDEBUG_CONSOLE
cout << endl << sqlStmt << endl << endl;
#endif
/********** wxTable::Delete() **********/
bool wxTable::Delete(void)
{
+ assert(!queryOnly);
+ if (queryOnly)
+ return(FALSE);
+
char sqlStmt[DB_MAX_STATEMENT_LEN];
// Build the SQL DELETE statement
/********** wxTable::DeleteWhere() **********/
bool wxTable::DeleteWhere(char *pWhereClause)
{
+ assert(!queryOnly);
+ if (queryOnly)
+ return(FALSE);
+
char sqlStmt[DB_MAX_STATEMENT_LEN];
// Build the SQL DELETE statement
/********** wxTable::DeleteMatching() **********/
bool wxTable::DeleteMatching(void)
{
+ assert(!queryOnly);
+ if (queryOnly)
+ return(FALSE);
+
char sqlStmt[DB_MAX_STATEMENT_LEN];
// Build the SQL DELETE statement
/********** wxTable::GetUpdateStmt() **********/
void wxTable::GetUpdateStmt(char *pSqlStmt, int typeOfUpd, char *pWhereClause)
{
+ assert(!queryOnly);
+ if (queryOnly)
+ return;
+
char whereClause[DB_MAX_WHERE_CLAUSE_LEN];
bool firstColumn = TRUE;
sprintf(pSqlStmt, "UPDATE %s SET ", tableName);
// Append a list of columns to be updated
- for (int i = 0; i < noCols; i++)
+ int i;
+ for (i = 0; i < noCols; i++)
{
// Only append Updateable columns
if (colDefs[i].Updateable)
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'
+ // e.g. UPDATE PARTS SET Col1 = ?, Col2 = ? WHERE ROWID = '111.222.333'
if (CanUpdByROWID())
{
SDWORD cb;
/********** wxTable::GetDeleteStmt() **********/
void wxTable::GetDeleteStmt(char *pSqlStmt, int typeOfDel, char *pWhereClause)
{
+ assert(!queryOnly);
+ if (queryOnly)
+ return;
+
char whereClause[DB_MAX_WHERE_CLAUSE_LEN];
whereClause[0] = 0;
char colValue[255];
// Loop through the columns building a where clause as you go
- for (int i = 0; i < noCols; i++)
+ int i;
+ for (i = 0; i < noCols; i++)
{
// Determine if this column should be included in the WHERE clause
if ((typeOfWhere == DB_WHERE_KEYFIELDS && colDefs[i].KeyField) ||
} // wxTable::IsColNull()
/********** wxTable::CanSelectForUpdate() **********/
-
bool wxTable::CanSelectForUpdate(void)
{
-#ifndef __WXGTK__
+ if (pDb->Dbms() == dbmsMY_SQL)
+ return FALSE;
+
if (pDb->dbInf.posStmts & SQL_PS_SELECT_FOR_UPDATE)
return(TRUE);
else
-#endif
return(FALSE);
} // wxTable::CanSelectForUpdate()
// as the ROWID is not getting updated correctly
return FALSE;
- if ((! strcmp(pDb->dbInf.dbmsName, "Oracle")) || (! strcmp(pDb->dbInf.dbmsName, "ORACLE")))
+ if (pDb->Dbms() == dbmsORACLE)
return(TRUE);
else
return(FALSE);
void wxTable::ClearMemberVars(void)
{
// Loop through the columns setting each member variable to zero
- for (int i = 0; i < noCols; i++)
+ int i;
+ for (i = 0; i < noCols; i++)
{
switch(colDefs[i].SqlCtype)
{
/********** 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));
+ if (SQLSetStmtOption(hstmtInternal, SQL_QUERY_TIMEOUT, nSeconds) != SQL_SUCCESS)
+ return(pDb->DispAllErrors(henv, hdbc, hstmtInternal));
// Completed Successfully
return(TRUE);
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
+ if (!colDefs) // May happen if the database connection fails
+ return;
+
+ if (strlen(fieldName) > (unsigned int) DB_MAX_COLUMN_NAME_LEN)
{
strncpy (colDefs[index].ColName, fieldName, DB_MAX_COLUMN_NAME_LEN);
- colDefs[index].ColName[DB_MAX_COLUMN_NAME_LEN] = 0; // glt 10/23/97
+ colDefs[index].ColName[DB_MAX_COLUMN_NAME_LEN] = 0;
}
else
strcpy(colDefs[index].ColName, fieldName);
colDefs[index].Updateable = upd;
colDefs[index].InsertAllowed = insAllow;
}
+
+ colDefs[index].Null = FALSE;
} // wxTable::SetColDefs()
/********** wxTable::SetCursor() **********/
-bool wxTable::SetCursor(int cursorNo)
+void wxTable::SetCursor(HSTMT *hstmtActivate)
{
- 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);
+ if (hstmtActivate == DEFAULT_CURSOR)
+ hstmt = *hstmtDefault;
+ else
+ hstmt = *hstmtActivate;
} // wxTable::SetCursor()
pDb->WriteSqlLog(sqlStmt);
+ // Initialize the Count cursor if it's not already initialized
+ if (!hstmtCount)
+ {
+ hstmtCount = NewCursor(FALSE,FALSE);
+ assert(hstmtCount);
+ if (!hstmtCount)
+ return(0);
+ }
+
// Execute the SQL statement
- if (SQLExecDirect(hstmtCount, (UCHAR FAR *) sqlStmt, SQL_NTS) != SQL_SUCCESS)
+ if (SQLExecDirect(*hstmtCount, (UCHAR FAR *) sqlStmt, SQL_NTS) != SQL_SUCCESS)
{
- pDb->DispAllErrors(henv, hdbc, hstmtCount);
+ pDb->DispAllErrors(henv, hdbc, *hstmtCount);
return(0);
}
// Fetch the record
- if (SQLFetch(hstmtCount) != SQL_SUCCESS)
+ if (SQLFetch(*hstmtCount) != SQL_SUCCESS)
{
- pDb->DispAllErrors(henv, hdbc, hstmtCount);
+ pDb->DispAllErrors(henv, hdbc, *hstmtCount);
return(0);
}
// Obtain the result
- if (SQLGetData(hstmtCount, 1, SQL_C_ULONG, (UCHAR*) &l, sizeof(l), &cb) != SQL_SUCCESS)
+ if (SQLGetData(*hstmtCount, 1, SQL_C_ULONG, &l, sizeof(l), &cb) != SQL_SUCCESS)
{
- pDb->DispAllErrors(henv, hdbc, hstmtCount);
+ pDb->DispAllErrors(henv, hdbc, *hstmtCount);
return(0);
}
// Free the cursor
- if (SQLFreeStmt(hstmtCount, SQL_CLOSE) != SQL_SUCCESS)
- pDb->DispAllErrors(henv, hdbc, hstmtCount);
+ if (SQLFreeStmt(*hstmtCount, SQL_CLOSE) != SQL_SUCCESS)
+ pDb->DispAllErrors(henv, hdbc, *hstmtCount);
// Return the record count
return(l);
{
bool result = TRUE;
- // Switch to cursor 0
- int cursorNo = GetCursor();
- if (!SetCursor())
- return(FALSE);
+ // Switch to the internal cursor so any active cursors are not corrupted
+ HSTMT currCursor = GetCursor();
+ hstmt = hstmtInternal;
// Save the where and order by clauses
char *saveWhere = where;
result = FALSE;
// Switch back to original cursor
- if (!SetCursor(cursorNo))
- result = FALSE;
+ SetCursor(&currCursor);
+
+ // Free the internal cursor
+ if (SQLFreeStmt(hstmtInternal, SQL_CLOSE) != SQL_SUCCESS)
+ pDb->DispAllErrors(henv, hdbc, hstmtInternal);
// Restore the original where and order by clauses
where = saveWhere;
} // wxTable::Refresh()
-#endif
- // wxUSE_ODBC
+/********** wxTable::SetNull(UINT colNo) **********/
+bool wxTable::SetNull(int colNo)
+{
+ if (colNo < noCols)
+ return(colDefs[colNo].Null = TRUE);
+ else
+ return(FALSE);
+
+} // wxTable::SetNull(UINT colNo)
+
+/********** wxTable::SetNull(char *colName) **********/
+bool wxTable::SetNull(char *colName)
+{
+ int i;
+ for (i = 0; i < noCols; i++)
+ {
+ if (!stricmp(colName, colDefs[i].ColName))
+ break;
+ }
+
+ if (i < noCols)
+ return(colDefs[i].Null = TRUE);
+ else
+ return(FALSE);
+
+} // wxTable::SetNull(char *colName)
+
+/********** wxTable::NewCursor() **********/
+HSTMT *wxTable::NewCursor(bool setCursor, bool bindColumns)
+{
+ HSTMT *newHSTMT = new HSTMT;
+ assert(newHSTMT);
+ if (!newHSTMT)
+ return(0);
+
+ if (SQLAllocStmt(hdbc, newHSTMT) != SQL_SUCCESS)
+ {
+ pDb->DispAllErrors(henv, hdbc);
+ delete newHSTMT;
+ return(0);
+ }
+
+ if (SQLSetStmtOption(*newHSTMT, SQL_CURSOR_TYPE, cursorType) != SQL_SUCCESS)
+ {
+ pDb->DispAllErrors(henv, hdbc, *newHSTMT);
+ delete newHSTMT;
+ return(0);
+ }
+
+ if (bindColumns)
+ {
+ if(!bindCols(*newHSTMT))
+ {
+ delete newHSTMT;
+ return(0);
+ }
+ }
+
+ if (setCursor)
+ SetCursor(newHSTMT);
+
+ return(newHSTMT);
+
+} // wxTable::NewCursor()
+
+/********** wxTable::DeleteCursor() **********/
+bool wxTable::DeleteCursor(HSTMT *hstmtDel)
+{
+ bool result = TRUE;
+
+ if (!hstmtDel) // Cursor already deleted
+ return(result);
+
+ if (SQLFreeStmt(*hstmtDel, SQL_DROP) != SQL_SUCCESS)
+ {
+ pDb->DispAllErrors(henv, hdbc);
+ result = FALSE;
+ }
+
+ delete hstmtDel;
+
+ return(result);
+
+} // wxTable::DeleteCursor()
+
+#endif // wxUSE_ODBC
projects / wxWidgets.git / blobdiff