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* src/backend/postgres/PostgresBackend.c (pgendEnable):

Browse Source 
Added ENTER/LEAVE statements

	* src/backend/postgres/escape.c: Adde gnc-engine-util.h,
	  and "module = MOD_BACKEND"
	- (sqlEscape_destroy): Added ENTER/LEAVE statemtents.

	* src/backend/postgres/gncquery.c (sql_Query_destroy): Added
	ENTER/LEAVE statements.

	* src/backend/postgres/putil.h: Cleaned up the formatting on the
	SEND/FINISH/EXEC/GET_RESULT macros.  Changed them to use
	PQresultErrorMessage where possible. Made them all set the Backend
	error message string.  Removed the PQfinish() calls, and setting
	be->connection to NULL.  Reasoning: if a malformed query fails, there is
	no reason to close the connection.  If an update/insert fails,
	again, there is no need to close the connection.  The user should
	be presented an error message and respond appropriately.  If
	a update/insert/delete fails, then generally the transaction is
	rolled back to the last BEGIN, thereby preventing data corruption.

	* src/engine/QueryNew.c (gncQueryPrint): Check that q is not NULL
	prior to processing it.


git-svn-id: svn+ssh://svn.gnucash.org/repo/gnucash/trunk@7905 57a11ea4-9604-0410-9ed3-97b8803252fd
This commit is contained in:
Derek Atkins 2003-02-01 21:26:33 +00:00
parent dda9a689f7
commit 5acf50fa9b
6 changed files with 103 additions and 55 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

26
ChangeLog
View File

@ -1,3 +1,29 @@
2003-02-01 Matthew Vanecek <mevanecek@yahoo.com>
* src/backend/postgres/PostgresBackend.c (pgendEnable):
Added ENTER/LEAVE statements
* src/backend/postgres/escape.c: Adde gnc-engine-util.h,
and "module = MOD_BACKEND"
- (sqlEscape_destroy): Added ENTER/LEAVE statemtents.
* src/backend/postgres/gncquery.c (sql_Query_destroy): Added
ENTER/LEAVE statements.
* src/backend/postgres/putil.h: Cleaned up the formatting on the
SEND/FINISH/EXEC/GET_RESULT macros. Changed them to use
PQresultErrorMessage where possible. Made them all set the Backend
error message string. Removed the PQfinish() calls, and setting
be->connection to NULL. Reasoning: if a malformed query fails, there is
no reason to close the connection. If an update/insert fails,
again, there is no need to close the connection. The user should
be presented an error message and respond appropriately. If
a update/insert/delete fails, then generally the transaction is
rolled back to the last BEGIN, thereby preventing data corruption.
* src/engine/QueryNew.c (gncQueryPrint): Check that q is not NULL
prior to processing it.
2003-02-01 Derek Atkins <derek@ihtfp.com>
* src/gnome/window-register.c: fix the query code to use the correct

3
src/backend/postgres/PostgresBackend.c
View File

@ -2405,6 +2405,7 @@ pgendDisable (PGBackend *be)
void
pgendEnable (PGBackend *be)
{
ENTER(" ");
if (0 >= be->nest_count)
{
PERR ("too many nested disables");
@ -2428,6 +2429,8 @@ pgendEnable (PGBackend *be)
be->be.percentage = be->snr.percentage;
be->be.events_pending = be->snr.events_pending;
be->be.process_events = be->snr.process_events;
LEAVE(" ");
}
/* ============================================================= */

7
src/backend/postgres/escape.c
View File

@ -32,8 +32,11 @@
#include <glib.h>
#include <string.h>
#include "gnc-engine-util.h"
#include "escape.h"
static short module = MOD_BACKEND;
/* ================================================ */
struct _escape {
@ -129,9 +132,11 @@ sqlEscape_new (void)
void
sqlEscape_destroy (sqlEscape *b)
{
if (!b) return;
ENTER(" ");
if (!b) { LEAVE("b is (null)"); return; }
g_free (b->escape); b->escape = NULL;
g_free (b);
LEAVE(" ");
}
/* ================ END OF FILE ==================== */

6
src/backend/postgres/gncquery.c
View File

@ -83,11 +83,15 @@ sqlQuery_new(void)
void
sql_Query_destroy(sqlQuery * sq)
{
if (!sq)
ENTER(" ");
if (!sq) {
LEAVE("sq = (null)");
return;
}
g_free(sq->q_base);
sqlEscape_destroy(sq->escape);
g_free(sq);
LEAVE(" ");
}
/*

108
src/backend/postgres/putil.h
View File

@ -84,22 +84,22 @@ int finishQuery(PGBackend *be);
* It performs a minimal check to see that the send succeeded.
*/
#define SEND_QUERY(be,buff,retval) \
{ \
int rc; \
if (NULL == be->connection) return retval; \
PINFO ("sending query %s", buff); \
rc = PQsendQuery (be->connection, buff); \
if (!rc) \
{ \
#define SEND_QUERY(be,buff,retval) \
{ \
int rc; \
if (NULL == be->connection) return retval; \
PINFO ("sending query %s", buff); \
rc = PQsendQuery (be->connection, buff); \
if (!rc) \
{ \
gchar * msg = (gchar *)PQerrorMessage(be->connection); \
/* hack alert -- we need kinder, gentler error handling */\
PERR("send query failed:\n\t%s", msg); \
xaccBackendSetMessage (&be->be, msg); \
xaccBackendSetError (&be->be, ERR_BACKEND_SERVER_ERR); \
return retval; \
} \
}
PERR("send query failed:\n\t%s", msg); \
xaccBackendSetMessage (&be->be, msg); \
xaccBackendSetError (&be->be, ERR_BACKEND_SERVER_ERR); \
return retval; \
} \
} \
/* --------------------------------------------------------------- */
/* The FINISH_QUERY macro makes sure that the previously sent
@ -138,50 +138,54 @@ int finishQuery(PGBackend *be);
* wire, and makes sure that no errors occured. Results are left
* in the result buffer.
*/
#define GET_RESULTS(conn,result) \
{ \
ExecStatusType status; \
result = PQgetResult (conn); \
if (!result) break; \
status = PQresultStatus(result); \
if ((PGRES_COMMAND_OK != status) && \
(PGRES_TUPLES_OK != status)) \
{ \
PERR("failed to get result to query:\n" \
"\t%s", PQerrorMessage((conn))); \
PQclear (result); \
PQfinish (conn); \
be->connection = NULL; \
xaccBackendSetError (&be->be, ERR_BACKEND_SERVER_ERR); \
break; \
} \
}
#define GET_RESULTS(conn,result) \
{ \
gchar *msg = NULL; \
ExecStatusType status; \
result = PQgetResult (conn); \
if (!result) break; \
status = PQresultStatus(result); \
msg = PQresultErrorMessage(result); \
if ((PGRES_COMMAND_OK != status) && \
(PGRES_TUPLES_OK != status)) \
{ \
PERR("failed to get result to query:\n\t%s", msg); \
PQclear (result); \
xaccBackendSetMessage (&be->be, msg); \
xaccBackendSetError (&be->be, ERR_BACKEND_SERVER_ERR);\
break; \
} \
} \
/* --------------------------------------------------------------- */
/* The EXEC_QUERY macro executes a query and returns the results
* and makes sure that no errors occured. Results are left
* in the result buffer.
*/
#define EXEC_QUERY(conn,buff,result) \
{ \
ExecStatusType status = 0; \
result = PQexec (conn, buff); \
if (result) \
status = PQresultStatus(result); \
if (!result || \
((PGRES_COMMAND_OK != status) && \
(PGRES_TUPLES_OK != status))) \
{ \
PERR("failed to get result to query:\n" \
"\t%s", PQerrorMessage((conn))); \
if (result) \
PQclear (result); \
result = NULL; \
PQfinish (conn); \
be->connection = NULL; \
xaccBackendSetError (&be->be, ERR_BACKEND_SERVER_ERR); \
} \
}
#define EXEC_QUERY(conn,buff,result) \
{ \
gchar *msg = NULL; \
ExecStatusType status = 0; \
result = PQexec (conn, buff); \
if (result) { \
status = PQresultStatus(result); \
msg = PQresultErrorMessage(result); \
} else { \
msg = PQerrorMessage(conn); \
} \
if (!result || \
((PGRES_COMMAND_OK != status) && \
(PGRES_TUPLES_OK != status))) \
{ \
PERR("failed to get result to query:\n" \
"\t%s", msg); \
if (result) \
PQclear (result); \
result = NULL; \
xaccBackendSetMessage (&be->be, msg); \
xaccBackendSetError (&be->be, ERR_BACKEND_SERVER_ERR);\
} \
} \
/* --------------------------------------------------------------- */
/* The IF_ONE_ROW macro counts the number of rows returned by

8
src/engine/QueryNew.c
View File

@ -1322,11 +1322,17 @@ gncQueryPrint (QueryNew * query)
QueryNewSort_t s[3];
gint maxResults = 0, numSorts = 3;
ENTER (" ");
if (!query) {
LEAVE("query is (null)");
return;
}
output = NULL;
str = NULL;
maxResults = gncQueryGetMaxResults (query);
ENTER (" ");
output = gncQueryPrintSearchFor (query, output);
output = gncQueryPrintTerms (query, output);