diff options
Diffstat (limited to 'src/sql/drivers/ibase/qsql_ibase.cpp')
| -rw-r--r-- | src/sql/drivers/ibase/qsql_ibase.cpp | 1078 |
1 files changed, 1078 insertions, 0 deletions
diff --git a/src/sql/drivers/ibase/qsql_ibase.cpp b/src/sql/drivers/ibase/qsql_ibase.cpp new file mode 100644 index 000000000..22c41064d --- /dev/null +++ b/src/sql/drivers/ibase/qsql_ibase.cpp @@ -0,0 +1,1078 @@ +/**************************************************************************** +** +** Implementation of Interbase driver classes. +** +** Copyright (C) 1992-2008 Trolltech ASA. All rights reserved. +** +** This file is part of the sql module of the TQt GUI Toolkit. +** EDITIONS: FREE, ENTERPRISE +** +** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE +** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. +** +****************************************************************************/ + +#include "qsql_ibase.h" + +#include <qdatetime.h> +#include <private/qsqlextension_p.h> + +#include <ibase.h> +#include <stdlib.h> +#include <limits.h> +#include <math.h> + +#define TQIBASE_DRIVER_NAME "TQIBASE" + +class TQIBasePreparedExtension : public TQSqlExtension +{ +public: + TQIBasePreparedExtension(TQIBaseResult *r) + : result(r) {} + + bool prepare(const TQString &query) + { + return result->prepare(query); + } + + bool exec() + { + return result->exec(); + } + + TQIBaseResult *result; +}; + +static bool getIBaseError(TQString& msg, ISC_STATUS* status, long &sqlcode) +{ + if (status[0] != 1 || status[1] <= 0) + return FALSE; + + sqlcode = isc_sqlcode(status); + char buf[512]; + isc_sql_interprete(sqlcode, buf, 512); + msg = TQString::fromUtf8(buf); + return TRUE; +} + +static void createDA(XSQLDA *&sqlda) +{ + sqlda = (XSQLDA *) malloc(XSQLDA_LENGTH(1)); + sqlda->sqln = 1; + sqlda->sqld = 0; + sqlda->version = SQLDA_VERSION1; + sqlda->sqlvar[0].sqlind = 0; + sqlda->sqlvar[0].sqldata = 0; +} + +static void enlargeDA(XSQLDA *&sqlda, int n) +{ + free(sqlda); + sqlda = (XSQLDA *) malloc(XSQLDA_LENGTH(n)); + sqlda->sqln = n; + sqlda->version = SQLDA_VERSION1; +} + +static void initDA(XSQLDA *sqlda) +{ + for (int i = 0; i < sqlda->sqld; ++i) { + switch (sqlda->sqlvar[i].sqltype & ~1) { + case SQL_INT64: + case SQL_LONG: + case SQL_SHORT: + case SQL_FLOAT: + case SQL_DOUBLE: + case SQL_TIMESTAMP: + case SQL_TYPE_TIME: + case SQL_TYPE_DATE: + case SQL_TEXT: + case SQL_BLOB: + sqlda->sqlvar[i].sqldata = (char*)malloc(sqlda->sqlvar[i].sqllen); + break; + case SQL_VARYING: + sqlda->sqlvar[i].sqldata = (char*)malloc(sqlda->sqlvar[i].sqllen + sizeof(short)); + break; + default: + // not supported - do not bind. + sqlda->sqlvar[i].sqldata = 0; + break; + } + if (sqlda->sqlvar[i].sqltype & 1) { + sqlda->sqlvar[i].sqlind = (short*)malloc(sizeof(short)); + *(sqlda->sqlvar[i].sqlind) = 0; + } else { + sqlda->sqlvar[i].sqlind = 0; + } + } +} + +static void delDA(XSQLDA *&sqlda) +{ + if (!sqlda) + return; + for (int i = 0; i < sqlda->sqld; ++i) { + free(sqlda->sqlvar[i].sqlind); + free(sqlda->sqlvar[i].sqldata); + } + free(sqlda); + sqlda = 0; +} + +static TQVariant::Type qIBaseTypeName(int iType) +{ + switch (iType) { + case blr_varying: + case blr_varying2: + case blr_text: + case blr_cstring: + case blr_cstring2: + return TQVariant::String; + case blr_sql_time: + return TQVariant::Time; + case blr_sql_date: + return TQVariant::Date; + case blr_timestamp: + return TQVariant::DateTime; + case blr_blob: + return TQVariant::ByteArray; + case blr_quad: + case blr_short: + case blr_long: + return TQVariant::Int; + case blr_int64: + return TQVariant::LongLong; + case blr_float: + case blr_d_float: + case blr_double: + return TQVariant::Double; + } + return TQVariant::Invalid; +} + +static TQVariant::Type qIBaseTypeName2(int iType) +{ + switch(iType & ~1) { + case SQL_VARYING: + case SQL_TEXT: + return TQVariant::String; + case SQL_LONG: + case SQL_SHORT: + return TQVariant::Int; + case SQL_INT64: + return TQVariant::LongLong; + case SQL_FLOAT: + case SQL_DOUBLE: + return TQVariant::Double; + case SQL_TIMESTAMP: + return TQVariant::DateTime; + case SQL_TYPE_DATE: + return TQVariant::Date; + case SQL_TYPE_TIME: + return TQVariant::Time; + default: + return TQVariant::Invalid; + } +} + +static ISC_TIME toTime(const TQTime &t) +{ + static const TQTime midnight(0, 0, 0, 0); + return (ISC_TIME)midnight.msecsTo(t) * 10; +} + +static ISC_DATE toDate(const TQDate &d) +{ + static const TQDate basedate(1858, 11, 17); + return (ISC_DATE)basedate.daysTo(d); +} + +static ISC_TIMESTAMP toTimeStamp(const TQDateTime &dt) +{ + ISC_TIMESTAMP ts; + ts.timestamp_time = toTime(dt.time()); + ts.timestamp_date = toDate(dt.date()); + return ts; +} + +static TQTime toTQTime(ISC_TIME time) +{ + // have to demangle the structure ourselves because isc_decode_time + // strips the msecs + static const TQTime t; + return t.addMSecs(time / 10); +} + +static TQDate toTQDate(ISC_DATE d) +{ + static const TQDate bd(1858, 11, 17); + return bd.addDays(d); +} + +static TQDateTime toTQDateTime(ISC_TIMESTAMP *ts) +{ + return TQDateTime(toTQDate(ts->timestamp_date), toTQTime(ts->timestamp_time)); +} + +class TQIBaseDriverPrivate +{ +public: + TQIBaseDriverPrivate(TQIBaseDriver *d): q(d) + { + ibase = 0; + trans = 0; + } + + bool isError(const TQString &msg = TQString::null, TQSqlError::Type typ = TQSqlError::Unknown) + { + TQString imsg; + long sqlcode; + if (!getIBaseError(imsg, status, sqlcode)) + return FALSE; + + q->setLastError(TQSqlError(msg, imsg, typ, (int)sqlcode)); + return TRUE; + } + +public: + TQIBaseDriver* q; + isc_db_handle ibase; + isc_tr_handle trans; + ISC_STATUS status[20]; +}; + +class TQIBaseResultPrivate +{ +public: + TQIBaseResultPrivate(TQIBaseResult *d, const TQIBaseDriver *ddb); + ~TQIBaseResultPrivate() { cleanup(); } + + void cleanup(); + bool isError(const TQString &msg = TQString::null, TQSqlError::Type typ = TQSqlError::Unknown) + { + TQString imsg; + long sqlcode; + if (!getIBaseError(imsg, status, sqlcode)) + return FALSE; + + q->setLastError(TQSqlError(msg, imsg, typ, (int)sqlcode)); + return TRUE; + } + + bool transaction(); + bool commit(); + + bool isSelect(); + TQVariant fetchBlob(ISC_QUAD *bId); + void writeBlob(int i, const TQByteArray &ba); + +public: + TQIBaseResult *q; + const TQIBaseDriver *db; + ISC_STATUS status[20]; + isc_tr_handle trans; + //indicator whether we have a local transaction or a transaction on driver level + bool localTransaction; + isc_stmt_handle stmt; + isc_db_handle ibase; + XSQLDA *sqlda; // output sqlda + XSQLDA *inda; // input parameters + int queryType; +}; + +TQIBaseResultPrivate::TQIBaseResultPrivate(TQIBaseResult *d, const TQIBaseDriver *ddb): + q(d), db(ddb), trans(0), stmt(0), ibase(ddb->d->ibase), sqlda(0), inda(0), queryType(-1) +{ + localTransaction = (ddb->d->ibase == 0); +} + +void TQIBaseResultPrivate::cleanup() +{ + if (stmt) { + isc_dsql_free_statement(status, &stmt, DSQL_drop); + stmt = 0; + } + + commit(); + if (!localTransaction) + trans = 0; + + delDA(sqlda); + delDA(inda); + + queryType = -1; + q->cleanup(); +} + +void TQIBaseResultPrivate::writeBlob(int i, const TQByteArray &ba) +{ + isc_blob_handle handle = 0; + ISC_QUAD *bId = (ISC_QUAD*)inda->sqlvar[i].sqldata; + isc_create_blob2(status, &ibase, &trans, &handle, bId, 0, 0); + if (!isError("Unable to create BLOB", TQSqlError::Statement)) { + uint i = 0; + while (i < ba.size()) { + isc_put_segment(status, &handle, TQMIN(ba.size() - i, SHRT_MAX), ba.data()); + if (isError("Unable to write BLOB")) + break; + i += SHRT_MAX; + } + } + isc_close_blob(status, &handle); +} + +TQVariant TQIBaseResultPrivate::fetchBlob(ISC_QUAD *bId) +{ + isc_blob_handle handle = 0; + + isc_open_blob2(status, &ibase, &trans, &handle, bId, 0, 0); + if (isError("Unable to open BLOB", TQSqlError::Statement)) + return TQVariant(); + + unsigned short len = 0; + TQByteArray ba(255); + ISC_STATUS stat = isc_get_segment(status, &handle, &len, ba.size(), ba.data()); + while (status[1] == isc_segment) { + uint osize = ba.size(); + // double the amount of data fetched on each iteration + ba.resize(TQMIN(ba.size() * 2, SHRT_MAX)); + stat = isc_get_segment(status, &handle, &len, osize, ba.data() + osize); + } + bool isErr = isError("Unable to read BLOB", TQSqlError::Statement); + isc_close_blob(status, &handle); + if (isErr) + return TQVariant(); + + if (ba.size() > 255) + ba.resize(ba.size() / 2 + len); + else + ba.resize(len); + + return ba; +} + +bool TQIBaseResultPrivate::isSelect() +{ + char acBuffer[9]; + char qType = isc_info_sql_stmt_type; + isc_dsql_sql_info(status, &stmt, 1, &qType, sizeof(acBuffer), acBuffer); + if (isError("Could not get query info", TQSqlError::Statement)) + return FALSE; + int iLength = isc_vax_integer(&acBuffer[1], 2); + queryType = isc_vax_integer(&acBuffer[3], iLength); + return (queryType == isc_info_sql_stmt_select); +} + +bool TQIBaseResultPrivate::transaction() +{ + if (trans) + return TRUE; + if (db->d->trans) { + localTransaction = FALSE; + trans = db->d->trans; + return TRUE; + } + localTransaction = TRUE; + + isc_start_transaction(status, &trans, 1, &ibase, 0, NULL); + if (isError("Could not start transaction", TQSqlError::Statement)) + return FALSE; + + return TRUE; +} + +// does nothing if the transaction is on the +// driver level +bool TQIBaseResultPrivate::commit() +{ + if (!trans) + return FALSE; + // don't commit driver's transaction, the driver will do it for us + if (!localTransaction) + return TRUE; + + isc_commit_transaction(status, &trans); + trans = 0; + return !isError("Unable to commit transaction", TQSqlError::Statement); +} + +////////// + +TQIBaseResult::TQIBaseResult(const TQIBaseDriver* db): + TQtSqlCachedResult(db) +{ + d = new TQIBaseResultPrivate(this, db); + setExtension(new TQIBasePreparedExtension(this)); +} + +TQIBaseResult::~TQIBaseResult() +{ + delete d; +} + +bool TQIBaseResult::prepare(const TQString& query) +{ + //qDebug("prepare: %s", query.ascii()); + if (!driver() || !driver()->isOpen() || driver()->isOpenError()) + return FALSE; + d->cleanup(); + setActive(FALSE); + setAt(TQSql::BeforeFirst); + + createDA(d->sqlda); + createDA(d->inda); + + if (!d->transaction()) + return FALSE; + + isc_dsql_allocate_statement(d->status, &d->ibase, &d->stmt); + if (d->isError("Could not allocate statement", TQSqlError::Statement)) + return FALSE; + isc_dsql_prepare(d->status, &d->trans, &d->stmt, 0, query.utf8().data(), 3, d->sqlda); + if (d->isError("Could not prepare statement", TQSqlError::Statement)) + return FALSE; + + isc_dsql_describe_bind(d->status, &d->stmt, 1, d->inda); + if (d->isError("Could not describe input statement", TQSqlError::Statement)) + return FALSE; + if (d->inda->sqld > d->inda->sqln) { + enlargeDA(d->inda, d->inda->sqld); + + isc_dsql_describe_bind(d->status, &d->stmt, 1, d->inda); + if (d->isError("Could not describe input statement", TQSqlError::Statement)) + return FALSE; + } + initDA(d->inda); + if (d->sqlda->sqld > d->sqlda->sqln) { + // need more field descriptors + enlargeDA(d->sqlda, d->sqlda->sqld); + + isc_dsql_describe(d->status, &d->stmt, 1, d->sqlda); + if (d->isError("Could not describe statement", TQSqlError::Statement)) + return FALSE; + } + initDA(d->sqlda); + + setSelect(d->isSelect()); + if (!isSelect()) { + free(d->sqlda); + d->sqlda = 0; + } + + return TRUE; +} + +bool TQIBaseResult::exec() +{ + if (!driver() || !driver()->isOpen() || driver()->isOpenError()) + return FALSE; + setActive(FALSE); + setAt(TQSql::BeforeFirst); + + if (d->inda && extension()->index.count() > 0) { + TQMap<int, TQString>::ConstIterator it; + if ((int)extension()->index.count() > d->inda->sqld) { + qWarning("TQIBaseResult::exec: Parameter mismatch, expected %d, got %d parameters", d->inda->sqld, extension()->index.count()); + return FALSE; + } + int para = 0; + for (it = extension()->index.constBegin(); it != extension()->index.constEnd(); ++it, ++para) { + if (para >= d->inda->sqld) + break; + if (!d->inda->sqlvar[para].sqldata) + continue; + const TQVariant val(extension()->values[it.data()].value); + if (d->inda->sqlvar[para].sqltype & 1) { + if (val.isNull()) { + // set null indicator + *(d->inda->sqlvar[para].sqlind) = 1; + // and set the value to 0, otherwise it would count as empty string. + *((short*)d->inda->sqlvar[para].sqldata) = 0; + continue; + } + // a value of 0 means non-null. + *(d->inda->sqlvar[para].sqlind) = 0; + } + switch(d->inda->sqlvar[para].sqltype & ~1) { + case SQL_INT64: + if (d->inda->sqlvar[para].sqlscale < 0) + *((Q_LLONG*)d->inda->sqlvar[para].sqldata) = Q_LLONG(val.toDouble() * + pow(10.0, d->inda->sqlvar[para].sqlscale * -1)); + else + *((Q_LLONG*)d->inda->sqlvar[para].sqldata) = val.toLongLong(); + break; + case SQL_LONG: + *((long*)d->inda->sqlvar[para].sqldata) = (long)val.toLongLong(); + break; + case SQL_SHORT: + *((short*)d->inda->sqlvar[para].sqldata) = (short)val.toInt(); + break; + case SQL_FLOAT: + *((float*)d->inda->sqlvar[para].sqldata) = (float)val.toDouble(); + break; + case SQL_DOUBLE: + *((double*)d->inda->sqlvar[para].sqldata) = val.toDouble(); + break; + case SQL_TIMESTAMP: + *((ISC_TIMESTAMP*)d->inda->sqlvar[para].sqldata) = toTimeStamp(val.toDateTime()); + break; + case SQL_TYPE_TIME: + *((ISC_TIME*)d->inda->sqlvar[para].sqldata) = toTime(val.toTime()); + break; + case SQL_TYPE_DATE: + *((ISC_DATE*)d->inda->sqlvar[para].sqldata) = toDate(val.toDate()); + break; + case SQL_VARYING: { + TQCString str(val.toString().utf8()); // keep a copy of the string alive in this scope + short buflen = d->inda->sqlvar[para].sqllen; + if (str.length() < (uint)buflen) + buflen = str.length(); + *(short*)d->inda->sqlvar[para].sqldata = buflen; // first two bytes is the length + memcpy(d->inda->sqlvar[para].sqldata + sizeof(short), str.data(), buflen); + break; } + case SQL_TEXT: { + TQCString str(val.toString().utf8().leftJustify(d->inda->sqlvar[para].sqllen, ' ', TRUE)); + memcpy(d->inda->sqlvar[para].sqldata, str.data(), d->inda->sqlvar[para].sqllen); + break; } + case SQL_BLOB: + d->writeBlob(para, val.toByteArray()); + break; + default: + break; + } + } + } + + if (colCount()) { + isc_dsql_free_statement(d->status, &d->stmt, DSQL_close); + if (d->isError("Unable to close statement")) + return FALSE; + cleanup(); + } + if (d->sqlda) + init(d->sqlda->sqld); + isc_dsql_execute2(d->status, &d->trans, &d->stmt, 1, d->inda, 0); + if (d->isError("Unable to execute query")) + return FALSE; + + setActive(TRUE); + return TRUE; +} + +bool TQIBaseResult::reset (const TQString& query) +{ +// qDebug("reset: %s", query.ascii()); + if (!driver() || !driver()->isOpen() || driver()->isOpenError()) + return FALSE; + d->cleanup(); + setActive(FALSE); + setAt(TQSql::BeforeFirst); + + createDA(d->sqlda); + + if (!d->transaction()) + return FALSE; + + isc_dsql_allocate_statement(d->status, &d->ibase, &d->stmt); + if (d->isError("Could not allocate statement", TQSqlError::Statement)) + return FALSE; + isc_dsql_prepare(d->status, &d->trans, &d->stmt, 0, query.utf8().data(), 3, d->sqlda); + if (d->isError("Could not prepare statement", TQSqlError::Statement)) + return FALSE; + + if (d->sqlda->sqld > d->sqlda->sqln) { + // need more field descriptors + int n = d->sqlda->sqld; + free(d->sqlda); + d->sqlda = (XSQLDA *) malloc(XSQLDA_LENGTH(n)); + d->sqlda->sqln = n; + d->sqlda->version = SQLDA_VERSION1; + + isc_dsql_describe(d->status, &d->stmt, 1, d->sqlda); + if (d->isError("Could not describe statement", TQSqlError::Statement)) + return FALSE; + } + + initDA(d->sqlda); + + setSelect(d->isSelect()); + if (isSelect()) { + init(d->sqlda->sqld); + } else { + free(d->sqlda); + d->sqlda = 0; + } + + isc_dsql_execute(d->status, &d->trans, &d->stmt, 1, 0); + if (d->isError("Unable to execute query")) + return FALSE; + + // commit non-select queries (if they are local) + if (!isSelect() && !d->commit()) + return FALSE; + + setActive(TRUE); + return TRUE; +} + +bool TQIBaseResult::gotoNext(TQtSqlCachedResult::RowCache* row) +{ + ISC_STATUS stat = isc_dsql_fetch(d->status, &d->stmt, 1, d->sqlda); + + if (stat == 100) { + // no more rows + setAt(TQSql::AfterLast); + return FALSE; + } + if (d->isError("Could not fetch next item", TQSqlError::Statement)) + return FALSE; + if (!row) // not interested in actual values + return TRUE; + + Q_ASSERT(row); + Q_ASSERT((int)row->size() == d->sqlda->sqld); + for (int i = 0; i < d->sqlda->sqld; ++i) { + char *buf = d->sqlda->sqlvar[i].sqldata; + int size = d->sqlda->sqlvar[i].sqllen; + Q_ASSERT(buf); + + if ((d->sqlda->sqlvar[i].sqltype & 1) && *d->sqlda->sqlvar[i].sqlind) { + // null value + TQVariant v; + v.cast(qIBaseTypeName2(d->sqlda->sqlvar[i].sqltype)); + (*row)[i] = v; + continue; + } + + switch(d->sqlda->sqlvar[i].sqltype & ~1) { + case SQL_VARYING: + // pascal strings - a short with a length information followed by the data + (*row)[i] = TQString::fromUtf8(buf + sizeof(short), *(short*)buf); + break; + case SQL_INT64: + if (d->sqlda->sqlvar[i].sqlscale < 0) + (*row)[i] = *(Q_LLONG*)buf * pow(10.0, d->sqlda->sqlvar[i].sqlscale); + else + (*row)[i] = TQVariant(*(Q_LLONG*)buf); + break; + case SQL_LONG: + if (sizeof(int) == sizeof(long)) //dear compiler: please optimize me out. + (*row)[i] = TQVariant((int)(*(long*)buf)); + else + (*row)[i] = TQVariant((Q_LLONG)(*(long*)buf)); + break; + case SQL_SHORT: + (*row)[i] = TQVariant((int)(*(short*)buf)); + break; + case SQL_FLOAT: + (*row)[i] = TQVariant((double)(*(float*)buf)); + break; + case SQL_DOUBLE: + (*row)[i] = TQVariant(*(double*)buf); + break; + case SQL_TIMESTAMP: + (*row)[i] = toTQDateTime((ISC_TIMESTAMP*)buf); + break; + case SQL_TYPE_TIME: + (*row)[i] = toTQTime(*(ISC_TIME*)buf); + break; + case SQL_TYPE_DATE: + (*row)[i] = toTQDate(*(ISC_DATE*)buf); + break; + case SQL_TEXT: + (*row)[i] = TQString::fromUtf8(buf, size); + break; + case SQL_BLOB: + (*row)[i] = d->fetchBlob((ISC_QUAD*)buf); + break; + default: + // unknown type - don't even try to fetch + (*row)[i] = TQVariant(); + break; + } + } + + return TRUE; +} + +int TQIBaseResult::size() +{ + static char sizeInfo[] = {isc_info_sql_records}; + char buf[33]; + + if (!isActive() || !isSelect()) + return -1; + + isc_dsql_sql_info(d->status, &d->stmt, sizeof(sizeInfo), sizeInfo, sizeof(buf), buf); + for (char* c = buf + 3; *c != isc_info_end; /*nothing*/) { + char ct = *c++; + short len = isc_vax_integer(c, 2); + c += 2; + int val = isc_vax_integer(c, len); + c += len; + if (ct == isc_info_req_select_count) + return val; + } + return -1; +} + +int TQIBaseResult::numRowsAffected() +{ + static char acCountInfo[] = {isc_info_sql_records}; + char cCountType; + + switch (d->queryType) { + case isc_info_sql_stmt_select: + cCountType = isc_info_req_select_count; + break; + case isc_info_sql_stmt_update: + cCountType = isc_info_req_update_count; + break; + case isc_info_sql_stmt_delete: + cCountType = isc_info_req_delete_count; + break; + case isc_info_sql_stmt_insert: + cCountType = isc_info_req_insert_count; + break; + } + + char acBuffer[33]; + int iResult = -1; + isc_dsql_sql_info(d->status, &d->stmt, sizeof(acCountInfo), acCountInfo, sizeof(acBuffer), acBuffer); + if (d->isError("Could not get statement info", TQSqlError::Statement)) + return -1; + for (char *pcBuf = acBuffer + 3; *pcBuf != isc_info_end; /*nothing*/) { + char cType = *pcBuf++; + short sLength = isc_vax_integer (pcBuf, 2); + pcBuf += 2; + int iValue = isc_vax_integer (pcBuf, sLength); + pcBuf += sLength; + + if (cType == cCountType) { + iResult = iValue; + break; + } + } + return iResult; +} + +/*********************************/ + +TQIBaseDriver::TQIBaseDriver(TQObject * parent, const char * name) + : TQSqlDriver(parent, name ? name : TQIBASE_DRIVER_NAME) +{ + d = new TQIBaseDriverPrivate(this); +} + +TQIBaseDriver::TQIBaseDriver(void *connection, TQObject *parent, const char *name) + : TQSqlDriver(parent, name ? name : TQIBASE_DRIVER_NAME) +{ + d = new TQIBaseDriverPrivate(this); + d->ibase = (isc_db_handle)(long int)connection; + setOpen(TRUE); + setOpenError(FALSE); +} + +TQIBaseDriver::~TQIBaseDriver() +{ + delete d; +} + +bool TQIBaseDriver::hasFeature(DriverFeature f) const +{ + switch (f) { + case Transactions: +// case QuerySize: + case PreparedQueries: + case PositionalPlaceholders: + case Unicode: + case BLOB: + return TRUE; + default: + return FALSE; + } +} + +bool TQIBaseDriver::open(const TQString & db, + const TQString & user, + const TQString & password, + const TQString & host, + int /*port*/, + const TQString & /* connOpts */) +{ + if (isOpen()) + close(); + + static const char enc[8] = "UTF_FSS"; + TQCString usr = user.local8Bit(); + TQCString pass = password.local8Bit(); + usr.truncate(255); + pass.truncate(255); + + TQByteArray ba(usr.length() + pass.length() + sizeof(enc) + 6); + int i = -1; + ba[++i] = isc_dpb_version1; + ba[++i] = isc_dpb_user_name; + ba[++i] = usr.length(); + memcpy(&ba[++i], usr.data(), usr.length()); + i += usr.length(); + ba[i] = isc_dpb_password; + ba[++i] = pass.length(); + memcpy(&ba[++i], pass.data(), pass.length()); + i += pass.length(); + ba[i] = isc_dpb_lc_ctype; + ba[++i] = sizeof(enc) - 1; + memcpy(&ba[++i], enc, sizeof(enc) - 1); + i += sizeof(enc) - 1; + + TQString ldb; + if (!host.isEmpty()) + ldb += host + ":"; + ldb += db; + isc_attach_database(d->status, 0, (char*)ldb.latin1(), &d->ibase, i, ba.data()); + if (d->isError("Error opening database", TQSqlError::Connection)) { + setOpenError(TRUE); + return FALSE; + } + + setOpen(TRUE); + return TRUE; +} + +void TQIBaseDriver::close() +{ + if (isOpen()) { + isc_detach_database(d->status, &d->ibase); + d->ibase = 0; + setOpen(FALSE); + setOpenError(FALSE); + } +} + +TQSqlQuery TQIBaseDriver::createQuery() const +{ + return TQSqlQuery(new TQIBaseResult(this)); +} + +bool TQIBaseDriver::beginTransaction() +{ + if (!isOpen() || isOpenError()) + return FALSE; + if (d->trans) + return FALSE; + + isc_start_transaction(d->status, &d->trans, 1, &d->ibase, 0, NULL); + return !d->isError("Could not start transaction", TQSqlError::Transaction); +} + +bool TQIBaseDriver::commitTransaction() +{ + if (!isOpen() || isOpenError()) + return FALSE; + if (!d->trans) + return FALSE; + + isc_commit_transaction(d->status, &d->trans); + d->trans = 0; + return !d->isError("Unable to commit transaction", TQSqlError::Transaction); +} + +bool TQIBaseDriver::rollbackTransaction() +{ + if (!isOpen() || isOpenError()) + return FALSE; + if (!d->trans) + return FALSE; + + isc_rollback_transaction(d->status, &d->trans); + d->trans = 0; + return !d->isError("Unable to rollback transaction", TQSqlError::Transaction); +} + +TQStringList TQIBaseDriver::tables(const TQString& typeName) const +{ + TQStringList res; + if (!isOpen()) + return res; + + int type = typeName.isEmpty() ? (int)TQSql::Tables | (int)TQSql::Views : typeName.toInt(); + TQString typeFilter; + + if (type == (int)TQSql::SystemTables) { + typeFilter += "RDB$SYSTEM_FLAG != 0"; + } else if (type == ((int)TQSql::SystemTables | (int)TQSql::Views)) { + typeFilter += "RDB$SYSTEM_FLAG != 0 OR RDB$VIEW_BLR NOT NULL"; + } else { + if (!(type & (int)TQSql::SystemTables)) + typeFilter += "RDB$SYSTEM_FLAG = 0 AND "; + if (!(type & (int)TQSql::Views)) + typeFilter += "RDB$VIEW_BLR IS NULL AND "; + if (!(type & (int)TQSql::Tables)) + typeFilter += "RDB$VIEW_BLR IS NOT NULL AND "; + if (!typeFilter.isEmpty()) + typeFilter.truncate(typeFilter.length() - 5); + } + if (!typeFilter.isEmpty()) + typeFilter.prepend("where "); + + TQSqlQuery q = createQuery(); + q.setForwardOnly(TRUE); + if (!q.exec("select rdb$relation_name from rdb$relations " + typeFilter)) + return res; + while(q.next()) + res << q.value(0).toString().stripWhiteSpace(); + + return res; +} + +TQSqlRecord TQIBaseDriver::record(const TQString& tablename) const +{ + TQSqlRecord rec; + if (!isOpen()) + return rec; + + TQSqlQuery q = createQuery(); + q.setForwardOnly(TRUE); + + q.exec("SELECT a.RDB$FIELD_NAME, b.RDB$FIELD_TYPE " + "FROM RDB$RELATION_FIELDS a, RDB$FIELDS b " + "WHERE b.RDB$FIELD_NAME = a.RDB$FIELD_SOURCE " + "AND a.RDB$RELATION_NAME = '" + tablename.upper()+ "' " + "ORDER BY RDB$FIELD_POSITION"); + while (q.next()) { + TQSqlField field(q.value(0).toString().stripWhiteSpace(), qIBaseTypeName(q.value(1).toInt())); + rec.append(field); + } + + return rec; +} + +TQSqlRecordInfo TQIBaseDriver::recordInfo(const TQString& tablename) const +{ + TQSqlRecordInfo rec; + if (!isOpen()) + return rec; + + TQSqlQuery q = createQuery(); + q.setForwardOnly(TRUE); + + q.exec("SELECT a.RDB$FIELD_NAME, b.RDB$FIELD_TYPE, b.RDB$FIELD_LENGTH, b.RDB$FIELD_SCALE, " + "b.RDB$FIELD_PRECISION, a.RDB$NULL_FLAG " + "FROM RDB$RELATION_FIELDS a, RDB$FIELDS b " + "WHERE b.RDB$FIELD_NAME = a.RDB$FIELD_SOURCE " + "AND a.RDB$RELATION_NAME = '" + tablename.upper() + "' " + "ORDER BY a.RDB$FIELD_POSITION"); + + while (q.next()) { + TQVariant::Type type = qIBaseTypeName(q.value(1).toInt()); + TQSqlFieldInfo field(q.value(0).toString().stripWhiteSpace(), type, q.value(5).toInt(), + q.value(2).toInt(), q.value(4).toInt(), TQVariant()); + + rec.append(field); + } + + return rec; +} + +TQSqlIndex TQIBaseDriver::primaryIndex(const TQString &table) const +{ + TQSqlIndex index(table); + if (!isOpen()) + return index; + + TQSqlQuery q = createQuery(); + q.setForwardOnly(TRUE); + q.exec("SELECT a.RDB$INDEX_NAME, b.RDB$FIELD_NAME, d.RDB$FIELD_TYPE " + "FROM RDB$RELATION_CONSTRAINTS a, RDB$INDEX_SEGMENTS b, RDB$RELATION_FIELDS c, RDB$FIELDS d " + "WHERE a.RDB$CONSTRAINT_TYPE = 'PRIMARY KEY' " + "AND a.RDB$RELATION_NAME = '" + table.upper() + "' " + "AND a.RDB$INDEX_NAME = b.RDB$INDEX_NAME " + "AND c.RDB$RELATION_NAME = a.RDB$RELATION_NAME " + "AND c.RDB$FIELD_NAME = b.RDB$FIELD_NAME " + "AND d.RDB$FIELD_NAME = c.RDB$FIELD_SOURCE " + "ORDER BY b.RDB$FIELD_POSITION"); + + while (q.next()) { + TQSqlField field(q.value(1).toString().stripWhiteSpace(), qIBaseTypeName(q.value(2).toInt())); + index.append(field); //TODO: asc? desc? + index.setName(q.value(0).toString()); + } + + return index; +} + +TQSqlRecord TQIBaseDriver::record(const TQSqlQuery& query) const +{ + TQSqlRecord rec; + if (query.isActive() && query.driver() == this) { + TQIBaseResult* result = (TQIBaseResult*)query.result(); + if (!result->d->sqlda) + return rec; + XSQLVAR v; + for (int i = 0; i < result->d->sqlda->sqld; ++i) { + v = result->d->sqlda->sqlvar[i]; + TQSqlField f(TQString::fromLatin1(v.sqlname, v.sqlname_length).stripWhiteSpace(), + qIBaseTypeName2(result->d->sqlda->sqlvar[i].sqltype)); + rec.append(f); + } + } + return rec; +} + +TQSqlRecordInfo TQIBaseDriver::recordInfo(const TQSqlQuery& query) const +{ + TQSqlRecordInfo rec; + if (query.isActive() && query.driver() == this) { + TQIBaseResult* result = (TQIBaseResult*)query.result(); + if (!result->d->sqlda) + return rec; + XSQLVAR v; + for (int i = 0; i < result->d->sqlda->sqld; ++i) { + v = result->d->sqlda->sqlvar[i]; + TQSqlFieldInfo f(TQString::fromLatin1(v.sqlname, v.sqlname_length).stripWhiteSpace(), + qIBaseTypeName2(result->d->sqlda->sqlvar[i].sqltype), + -1, v.sqllen, TQABS(v.sqlscale), TQVariant(), v.sqltype); + rec.append(f); + } + } + return rec; +} + +TQString TQIBaseDriver::formatValue(const TQSqlField* field, bool trimStrings) const +{ + switch (field->type()) { + case TQVariant::DateTime: { + TQDateTime datetime = field->value().toDateTime(); + if (datetime.isValid()) + return "'" + TQString::number(datetime.date().year()) + "-" + + TQString::number(datetime.date().month()) + "-" + + TQString::number(datetime.date().day()) + " " + + TQString::number(datetime.time().hour()) + ":" + + TQString::number(datetime.time().minute()) + ":" + + TQString::number(datetime.time().second()) + "." + + TQString::number(datetime.time().msec()).rightJustify(3, '0', TRUE) + "'"; + else + return "NULL"; + } + case TQVariant::Time: { + TQTime time = field->value().toTime(); + if (time.isValid()) + return "'" + TQString::number(time.hour()) + ":" + + TQString::number(time.minute()) + ":" + + TQString::number(time.second()) + "." + + TQString::number(time.msec()).rightJustify(3, '0', TRUE) + "'"; + else + return "NULL"; + } + case TQVariant::Date: { + TQDate date = field->value().toDate(); + if (date.isValid()) + return "'" + TQString::number(date.year()) + "-" + + TQString::number(date.month()) + "-" + + TQString::number(date.day()) + "'"; + else + return "NULL"; + } + default: + return TQSqlDriver::formatValue(field, trimStrings); + } +} |