QSQLite2ResultPrivate Class Reference

Collaboration diagram for QSQLite2ResultPrivate:

[legend]List of all members.

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Detailed Description

Definition at line 74 of file qsql_sqlite2.cpp.

Public Member Functions
	QSQLite2ResultPrivate (QSQLite2Result *res)
void	cleanup ()
bool	fetchNext (QSqlCachedResult::ValueCache &values, int idx, bool initialFetch)
bool	isSelect ()
void	init (const char **cnames, int numCols)
void	finalize ()
Public Attributes
QSQLite2Result *	q
sqlite *	access
const char *	currentTail
sqlite_vm *	currentMachine
uint	skippedStatus: 1
uint	skipRow: 1
uint	utf8: 1
QSqlRecord	rInf

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Constructor & Destructor Documentation

QSQLite2ResultPrivate::QSQLite2ResultPrivate

(

QSQLite2Result *

res

)

Definition at line 101 of file qsql_sqlite2.cpp.

                                                                : q(res), access(0), currentTail(0),
    currentMachine(0), skippedStatus(false), skipRow(false), utf8(false)
{
}

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Member Function Documentation

void QSQLite2ResultPrivate::cleanup

(

)

Definition at line 106 of file qsql_sqlite2.cpp.

References QSql::BeforeFirstRow, QSqlCachedResult::cleanup(), QSqlRecord::clear(), currentMachine, currentTail, finalize(), q, rInf, QSqlResult::setActive(), QSqlResult::setAt(), skippedStatus, and skipRow.

Referenced by QSQLite2Result::reset(), and QSQLite2Result::~QSQLite2Result().

{
    finalize();
    rInf.clear();
    currentTail = 0;
    currentMachine = 0;
    skippedStatus = false;
    skipRow = false;
    q->setAt(QSql::BeforeFirstRow);
    q->setActive(false);
    q->cleanup();
}

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bool QSQLite2ResultPrivate::fetchNext	(	QSqlCachedResult::ValueCache &	values,
		int	idx,
		bool	initialFetch
	)

Definition at line 154 of file qsql_sqlite2.cpp.

References QSql::AfterLastRow, currentMachine, finalize(), QString::fromAscii(), QString::fromUtf8(), i, init(), QSqlRecord::isEmpty(), q, rInf, QSqlResult::setAt(), skippedStatus, skipRow, SQLITE_BUSY, SQLITE_DONE, SQLITE_ERROR, SQLITE_MISUSE, SQLITE_ROW, utf8, and values.

Referenced by QSQLite2Result::gotoNext(), and QSQLite2Result::reset().

{
    // may be caching.
    const char **fvals;
    const char **cnames;
    int colNum;
    int res;
    int i;

    if (skipRow) {
        // already fetched
        Q_ASSERT(!initialFetch);
        skipRow = false;
        return skippedStatus;
    }
    skipRow = initialFetch;

    if (!currentMachine)
        return false;

    // keep trying while busy, wish I could implement this better.
    while ((res = sqlite_step(currentMachine, &colNum, &fvals, &cnames)) == SQLITE_BUSY) {
        // sleep instead requesting result again immidiately.
#if defined Q_WS_WIN32
        Sleep(1000);
#else
        sleep(1);
#endif
    }

    switch(res) {
    case SQLITE_ROW:
        // check to see if should fill out columns
        if (rInf.isEmpty())
            // must be first call.
            init(cnames, colNum);
        if (!fvals)
            return false;
        if (idx < 0 && !initialFetch)
            return true;
        for (i = 0; i < colNum; ++i)
            values[i + idx] = utf8 ? QString::fromUtf8(fvals[i]) : QString::fromAscii(fvals[i]);
        return true;
    case SQLITE_DONE:
        if (rInf.isEmpty())
            // must be first call.
            init(cnames, colNum);
        q->setAt(QSql::AfterLastRow);
        return false;
    case SQLITE_ERROR:
    case SQLITE_MISUSE:
    default:
        // something wrong, don't get col info, but still return false
        finalize(); // finalize to get the error message.
        q->setAt(QSql::AfterLastRow);
        return false;
    }
    return false;
}

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bool QSQLite2ResultPrivate::isSelect

(

)

void QSQLite2ResultPrivate::init	(	const char **	cnames,
		int	numCols
	)

Definition at line 136 of file qsql_sqlite2.cpp.

References QSqlRecord::append(), QSqlRecord::clear(), QString::fromAscii(), i, QSqlCachedResult::init(), nameToType(), q, and rInf.

Referenced by fetchNext().

{
    if (!cnames)
        return;

    rInf.clear();
    if (numCols <= 0)
        return;
    q->init(numCols);

    for (int i = 0; i < numCols; ++i) {
        const char* lastDot = strrchr(cnames[i], '.');
        const char* fieldName = lastDot ? lastDot + 1 : cnames[i];
        rInf.append(QSqlField(QString::fromAscii(fieldName),
                              nameToType(QString::fromAscii(cnames[i+numCols]))));
    }
}

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void QSQLite2ResultPrivate::finalize

(

)

Definition at line 119 of file qsql_sqlite2.cpp.

References currentMachine, QString::fromAscii(), q, QSqlResult::setLastError(), QSqlError::StatementError, and QCoreApplication::translate().

Referenced by cleanup(), and fetchNext().

{
    if (!currentMachine)
        return;

    char* err = 0;
    int res = sqlite_finalize(currentMachine, &err);
    if (err) {
        q->setLastError(QSqlError(QCoreApplication::translate("QSQLite2Result",
                                  "Unable to fetch results"), QString::fromAscii(err),
                                  QSqlError::StatementError, res));
        sqlite_freemem(err);
    }
    currentMachine = 0;
}

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Member Data Documentation

QSQLite2Result* QSQLite2ResultPrivate::q

Definition at line 85 of file qsql_sqlite2.cpp.

Referenced by cleanup(), fetchNext(), finalize(), and init().

sqlite* QSQLite2ResultPrivate::access

Definition at line 86 of file qsql_sqlite2.cpp.

Referenced by QSQLite2Result::numRowsAffected(), QSQLite2Result::QSQLite2Result(), and QSQLite2Result::reset().

const char* QSQLite2ResultPrivate::currentTail

Definition at line 90 of file qsql_sqlite2.cpp.

Referenced by cleanup(), and QSQLite2Result::reset().

sqlite_vm* QSQLite2ResultPrivate::currentMachine

Definition at line 91 of file qsql_sqlite2.cpp.

Referenced by cleanup(), fetchNext(), finalize(), QSQLite2Result::handle(), and QSQLite2Result::reset().

uint QSQLite2ResultPrivate::skippedStatus

Definition at line 93 of file qsql_sqlite2.cpp.

Referenced by cleanup(), fetchNext(), and QSQLite2Result::reset().

uint QSQLite2ResultPrivate::skipRow

Definition at line 94 of file qsql_sqlite2.cpp.

Referenced by cleanup(), and fetchNext().

uint QSQLite2ResultPrivate::utf8

Definition at line 95 of file qsql_sqlite2.cpp.

Referenced by fetchNext(), QSQLite2Result::QSQLite2Result(), and QSQLite2Result::reset().

QSqlRecord QSQLite2ResultPrivate::rInf

Definition at line 96 of file qsql_sqlite2.cpp.

Referenced by cleanup(), fetchNext(), init(), QSQLite2Result::record(), and QSQLite2Result::reset().

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The documentation for this class was generated from the following file:

• src/sql/drivers/sqlite2/qsql_sqlite2.cpp

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