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#include "pq-command.h"
#include "pq-connection.h"
#include <stdlib.h>
#include <string.h>
#include <compileTimeFormatter.h>
#include <boost/date_time/posix_time/posix_time.hpp>
#include <factory.h>
NAMEDFACTORY("postgresql", PQ::CommandOptions, DB::CommandOptionsFactory);
AdHocFormatter(PQCommondStatement, "pStatement_id%?");
PQ::Command::Command(Connection * conn, const std::string & sql, const DB::CommandOptions * opts) :
DB::Command(sql),
hash(opts && opts->hash ? *opts->hash : std::hash<std::string>()(sql)),
stmntName(PQCommondStatement::get(hash)),
c(conn)
{
}
PQ::Command::~Command()
{
for (auto i = values.size(); i-- > 0;) {
if (bufs[i]) {
delete bufs[i];
}
else {
free(values[i]);
}
}
}
PQ::CommandOptions::CommandOptions(std::size_t hash, const DB::CommandOptionsMap &) :
DB::CommandOptions(hash)
{
}
PQ::CommandOptions::CommandOptions(std::size_t hash,
unsigned int ft,
bool uc) :
DB::CommandOptions(hash),
fetchTuples(ft),
useCursor(uc)
{
}
AdHocFormatter(PQCommandParamName, "$%?");
void
PQ::Command::prepareSql(std::stringstream & psql, const std::string & sql) const
{
if (values.empty()) {
psql << sql;
return;
}
int p = 1;
bool inquote = false;
for (const auto & i : sql) {
if (i == '?' && !inquote) {
PQCommandParamName::write(psql, p++);
}
else if (i == '\'') {
inquote = !inquote;
psql << i;
}
else {
psql << i;
}
}
}
void
PQ::Command::paramsAtLeast(unsigned int n)
{
if (values.size() <= n) {
values.resize(n + 1, NULL);
lengths.resize(n + 1, 0);
bufs.resize(n + 1, NULL);
}
else {
if (bufs[n]) {
delete bufs[n];
bufs[n] = nullptr;
}
else {
free(values[n]);
}
values[n] = NULL;
}
}
template<typename ... T>
void
PQ::Command::paramSet(unsigned int n, const char * fmt, const T & ... v)
{
paramsAtLeast(n);
lengths[n] = asprintf(&values[n], fmt, v...);
delete bufs[n];
bufs[n] = nullptr;
}
void
PQ::Command::paramSet(unsigned int n, const std::string & b)
{
paramsAtLeast(n);
delete bufs[n];
bufs[n] = new std::string(b);
lengths[n] = b.length();
values[n] = const_cast<char *>(bufs[n]->data());
}
void
PQ::Command::bindParamI(unsigned int n, int v)
{
paramSet(n, "%d", v);
}
void
PQ::Command::bindParamI(unsigned int n, long int v)
{
paramSet(n, "%ld", v);
}
void
PQ::Command::bindParamI(unsigned int n, long long int v)
{
paramSet(n, "%lld", v);
}
void
PQ::Command::bindParamI(unsigned int n, unsigned int v)
{
paramSet(n, "%u", v);
}
void
PQ::Command::bindParamI(unsigned int n, long unsigned int v)
{
paramSet(n, "%lu", v);
}
void
PQ::Command::bindParamI(unsigned int n, long long unsigned int v)
{
paramSet(n, "%llu", v);
}
void
PQ::Command::bindParamB(unsigned int n, bool v)
{
paramSet(n, "%s", v ? "true" : "false");
}
void
PQ::Command::bindParamF(unsigned int n, double v)
{
paramSet(n, "%g", v);
}
void
PQ::Command::bindParamF(unsigned int n, float v)
{
paramSet(n, "%g", v);
}
void
PQ::Command::bindParamS(unsigned int n, const Glib::ustring & s)
{
paramSet(n, s);
}
void
PQ::Command::bindParamT(unsigned int n, const boost::posix_time::time_duration & v)
{
paramSet(n, boost::posix_time::to_simple_string(v));
}
void
PQ::Command::bindParamT(unsigned int n, const boost::posix_time::ptime & v)
{
paramSet(n, boost::posix_time::to_iso_extended_string(v));
}
void
PQ::Command::bindNull(unsigned int n)
{
paramsAtLeast(n);
}
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