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fixed an sqlite bug where empty results would count as no result set

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--HG--
extra : convert_revision : svn%3A39bc706e-5318-0410-9160-8a85361fbb7c/trunk%401216
This commit is contained in:
David Anderson 2007-07-29 14:56:24 +00:00
parent dd8a7512a6
commit 64d7fd751a
2 changed files with 13 additions and 1 deletions
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13
extensions/sqlite/driver/SqQuery.cpp
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@ -27,6 +27,7 @@ SqQuery::SqQuery(SqDatabase *parent, sqlite3_stmt *stmt) :
m_pParent(parent), m_pStmt(stmt), m_pResults(NULL), m_AffectedRows(0), m_InsertID(0) m_pParent(parent), m_pStmt(stmt), m_pResults(NULL), m_AffectedRows(0), m_InsertID(0)
{ {
m_ParamCount = sqlite3_bind_parameter_count(m_pStmt); m_ParamCount = sqlite3_bind_parameter_count(m_pStmt);
m_ColCount = sqlite3_column_count(m_pStmt);
m_pParent->IncReferenceCount(); m_pParent->IncReferenceCount();
} }
@ -127,15 +128,25 @@ bool SqQuery::Execute()
{ {
int rc; int rc;
/* If we don't have a result set and we have a column count,
* create a result set pre-emptively. This is in case there
* are no rows in the upcoming result set.
*/
if (!m_pResults && m_ColCount)
{
m_pResults = new SqResults(this);
}
/* If we've got results, throw them away */ /* If we've got results, throw them away */
if (m_pResults) if (m_pResults)
{ {
m_pResults->ResetResultCount(); m_pResults->ResetResultCount();
} }
/* Fetch each row, if any */
while ((rc = sqlite3_step(m_pStmt)) == SQLITE_ROW) while ((rc = sqlite3_step(m_pStmt)) == SQLITE_ROW)
{ {
/* Delay creation as long as possible... */ /* This should NEVER happen but we're being safe. */
if (!m_pResults) if (!m_pResults)
{ {
m_pResults = new SqResults(this); m_pResults = new SqResults(this);

1
extensions/sqlite/driver/SqQuery.h
View File

@ -81,6 +81,7 @@ private:
int m_LastErrorCode; int m_LastErrorCode;
unsigned int m_AffectedRows; unsigned int m_AffectedRows;
unsigned int m_InsertID; unsigned int m_InsertID;
unsigned int m_ColCount;
}; };
#endif //_INCLUDE_SQLITE_SOURCEMOD_QUERY_H_ #endif //_INCLUDE_SQLITE_SOURCEMOD_QUERY_H_