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#include "column.h"
#include "selectcommand.h"
#include "error.h"
#include <string.h>
#include <boost/date_time/posix_time/posix_time.hpp>
PQ::Column::Column(const SelectCommand * s, unsigned int i) :
DB::Column(PQfname(s->execRes, i), i),
sc(s),
oid(PQftype(sc->execRes, colNo))
{
}
bool
PQ::Column::isNull() const
{
return PQgetisnull(sc->execRes, sc->tuple, colNo);
}
void
PQ::Column::apply(DB::HandleField & h) const
{
if (isNull()) {
h.null();
return;
}
switch (oid) {
case 18: //CHAROID:
case 1043: //VARCHAROID:
case 25: //TEXTOID:
case 142: //XMLOID:
h.string(PQgetvalue(sc->execRes, sc->tuple, colNo), PQgetlength(sc->execRes, sc->tuple, colNo));
break;
case 16: //BOOLOID:
h.integer(PQgetvalue(sc->execRes, sc->tuple, colNo)[0] == 't' ? 1 : 0);
break;
case 21: //INT2OID:
case 23: //INT4OID:
case 20: //INT8OID:
h.integer(atol(PQgetvalue(sc->execRes, sc->tuple, colNo)));
break;
case 1700: //NUMERICOID:
case 700: //FLOAT4OID:
case 701: //FLOAT8OID:
h.floatingpoint(atof(PQgetvalue(sc->execRes, sc->tuple, colNo)));
break;
case 704: //TINTERVALOID
case 1083: //TIMEOID:
case 1186: //INTERVALOID
{
int days = 0, hours = 0, minutes = 0, seconds = 0, fractions = 0, flen1 = 0, flen2 = 0;
const char * val = PQgetvalue(sc->execRes, sc->tuple, colNo);
if (sscanf(val, "%d days %d:%d:%d.%n%d%n", &days, &hours, &minutes, &seconds, &flen1, &fractions, &flen2) >= 4) {
h.interval(boost::posix_time::time_duration((24 * days) + hours, minutes, seconds, fractions * pow(10, boost::posix_time::time_res_traits::num_fractional_digits() + flen1 - flen2)));
}
else if (sscanf(val, "%d day %d:%d:%d.%n%d%n", &days, &hours, &minutes, &seconds, &flen1, &fractions, &flen2) >= 4) {
h.interval(boost::posix_time::time_duration((24 * days) + hours, minutes, seconds, fractions * pow(10, boost::posix_time::time_res_traits::num_fractional_digits() + flen1 - flen2)));
}
else {
h.interval(boost::posix_time::duration_from_string(PQgetvalue(sc->execRes, sc->tuple, colNo)));
}
break;
}
case 1082: //DATEOID:
h.timestamp(boost::posix_time::ptime(
boost::gregorian::from_string(PQgetvalue(sc->execRes, sc->tuple, colNo))));
break;
case 702: //ABSTIMEOID:
case 1114: //TIMESTAMPOID:
case 1184: //TIMESTAMPTZOID:
h.timestamp(boost::posix_time::time_from_string(PQgetvalue(sc->execRes, sc->tuple, colNo)));
break;
default:
h.string(PQgetvalue(sc->execRes, sc->tuple, colNo), PQgetlength(sc->execRes, sc->tuple, colNo));
}
}
void
PQ::Column::rebind(DB::Command *, unsigned int) const
{
throw Error("Not supported");
}
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