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/*
* The contents of this file are subject to the AOLserver Public License
* Version 1.1 (the "License"); you may not use this file except in
* compliance with the License. You may obtain a copy of the License at
* http://aolserver.com/.
*
* Software distributed under the License is distributed on an "AS IS"
* basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
* the License for the specific language governing rights and limitations
* under the License.
*
* The Original Code is AOLserver Code and related documentation
* distributed by AOL.
*
* The Initial Developer of the Original Code is America Online,
* Inc. Portions created by AOL are Copyright (C) 1999 America Online,
* Inc. All Rights Reserved.
*
* Alternatively, the contents of this file may be used under the terms
* of the GNU General Public License (the "GPL"), in which case the
* provisions of GPL are applicable instead of those above. If you wish
* to allow use of your version of this file only under the terms of the
* GPL and not to allow others to use your version of this file under the
* License, indicate your decision by deleting the provisions above and
* replace them with the notice and other provisions required by the GPL.
* If you do not delete the provisions above, a recipient may use your
* version of this file under either the License or the GPL.
*
* $Header: /cvsroot/aolserver/nspostgres/nspostgres.h,v 1.4 2003/01/09 21:07:05 lowen Exp $
*/
/* NOTE: for OpenACS use, you need to define FOR_ACS_USE! */
#include "ns.h"
/* If we're under AOLserver 3, we don't need some things.
the constant NS_AOLSERVER_3_PLUS is defined in AOLserver 3 and greater's
ns.h */
#ifndef NS_DML
#include "nsdb.h"
#endif
#ifndef NS_AOLSERVER_3_PLUS
#include "nstcl.h"
#endif /* NS_AOLSERVER_3_PLUS */
#include "libpq-fe.h"
#include <string.h>
#include <stdio.h>
#include <ctype.h>
#define DRIVER_NAME "PostgreSQL"
#define OID_QUOTED_STRING " oid = '"
#define STRING_BUF_LEN 256
#ifndef FALSE
#define FALSE 0
#endif
#ifndef TRUE
#define TRUE 1
#endif
static void Ns_PgUnQuoteOidString(Ns_DString *sql);
static char *Ns_PgName(Ns_DbHandle *handle);
static char *Ns_PgDbType(Ns_DbHandle *handle);
static int Ns_PgOpenDb(Ns_DbHandle *dbhandle);
static int Ns_PgCloseDb(Ns_DbHandle *dbhandle);
static int Ns_PgGetRow(Ns_DbHandle *handle, Ns_Set *row);
static int Ns_PgFlush(Ns_DbHandle *handle);
/* Clunky construct follows :-) We want these statics for either AS 2.3
OR for OpenACS under AS3 -- plain AS3 doesn't get these */
/* Hack out the extended_table_info stuff if AOLserver 3, and add in our
driver's reimplement of ns_table and ns_column */
#ifdef NS_AOLSERVER_3_PLUS
#ifdef FOR_ACS_USE
/* So that we don't have to do this clunky thing again, set a define */
#define NOT_AS3_PLAIN
/* A linked list to use when parsing SQL. */
typedef struct _string_list_elt {
char *string;
struct _string_list_elt *next;
} string_list_elt_t;
static Ns_DbTableInfo *Ns_PgGetTableInfo(Ns_DbHandle *handle, char *table);
static char *Ns_PgTableList(Ns_DString *pds, Ns_DbHandle *handle, int includesystem);
static int pg_column_command (ClientData dummy, Tcl_Interp *interp,
int argc, char *argv[]);
static int pg_table_command (ClientData dummy, Tcl_Interp *interp,
int argc, char *argv[]);
static Ns_DbTableInfo *Ns_DbNewTableInfo (char *table);
static void Ns_DbFreeTableInfo (Ns_DbTableInfo *tinfo);
static void Ns_DbAddColumnInfo (Ns_DbTableInfo *tinfo, Ns_Set *column_info);
static int Ns_DbColumnIndex (Ns_DbTableInfo *tinfo, char *name);
#endif /* FOR_ACS_USE */
/* PLAIN AS 3! */
#define AS3_PLAIN /* that is, AS3 without the ACS extensions */
#else /* NS_AOLSERVER_3_PLUS */
/* define NOT_AS3_PLAIN here as well, so that a single ifdef can be used */
#define NOT_AS3_PLAIN
static Ns_DbTableInfo *Ns_PgGetTableInfo(Ns_DbHandle *handle, char *table);
static char *Ns_PgTableList(Ns_DString *pds, Ns_DbHandle *handle, int includesystem);
static char *Ns_PgBestRowId(Ns_DString *pds, Ns_DbHandle *handle, char *table);
#endif /* NS_AOLSERVER_3_PLUS */
static int Ns_PgServerInit(char *hServer, char *hModule, char *hDriver);
static void Ns_PgSetErrorstate(Ns_DbHandle *handle);
static int Ns_PgExec(Ns_DbHandle *handle, char *sql);
static Ns_Set *Ns_PgBindRow(Ns_DbHandle *handle);
static int Ns_PgResetHandle(Ns_DbHandle *handle);
static char *pgName = DRIVER_NAME;
static unsigned int pgCNum = 0;
/*-
*
* The NULL-terminated PgProcs[] array of Ns_DbProc structures is the
* method by which the function pointers are passed to the nsdb module
* through the Ns_DbRegisterDriver() function. Each Ns_DbProc includes
* the function id (i.e., DbFn_OpenDb, DbFn_CloseDb, etc.) and the
* cooresponding driver function pointer (i.e., Ns_PgOpendb, Ns_PgCloseDb,
* etc.). See nsdb.h for a complete list of function ids.
*/
static Ns_DbProc PgProcs[] = {
{DbFn_Name, (void *) Ns_PgName},
{DbFn_DbType, (void *) Ns_PgDbType},
{DbFn_OpenDb, (void *) Ns_PgOpenDb},
{DbFn_CloseDb, (void *) Ns_PgCloseDb},
{DbFn_BindRow, (void *) Ns_PgBindRow},
{DbFn_Exec, (void *) Ns_PgExec},
{DbFn_GetRow, (void *) Ns_PgGetRow},
{DbFn_Flush, (void *) Ns_PgFlush},
{DbFn_Cancel, (void *) Ns_PgFlush},
/* Excise for AS 3 */
#ifndef NS_AOLSERVER_3_PLUS
{DbFn_GetTableInfo, (void *) Ns_PgGetTableInfo},
{DbFn_TableList, (void *) Ns_PgTableList},
{DbFn_BestRowId, (void *) Ns_PgBestRowId},
#endif /* NS_AOLSERVER_3_PLUS */
{DbFn_ServerInit, (void *) Ns_PgServerInit},
{DbFn_ResetHandle, (void *) Ns_PgResetHandle },
{0, NULL}
};
/*
* The NsPgConn structure is connection data specific
* to PostgreSQL.
*/
typedef struct NsPgConn {
PGconn *conn;
unsigned int cNum;
PGresult *res;
int nCols;
int nTuples;
int curTuple;
int in_transaction;
} NsPgConn;
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