void prepared_statement_t::_bind_date_time_parameter(size_t index, const ::sqlpp::chrono::microsecond_point* value, bool is_null) {
if(_handle->debug) {
std::cerr << "ODBC debug: binding date_time parameter"
" at index: " << index << ", being " << (is_null ? std::string() : "not") << " null" << std::endl;
}
SQLLEN indPtr(is_null ? SQL_NULL_DATA : 0);
SQL_TIMESTAMP_STRUCT ts_value = {0};
if(!is_null) {
const auto dp = ::date::floor<::date::days>(*value);
const auto time = date::make_time(*value - dp);
const auto ymd = ::date::year_month_day{dp};
ts_value.year = static_cast<int>(ymd.year());
ts_value.month = static_cast<unsigned>(ymd.month());
ts_value.day = static_cast<unsigned>(ymd.day());
ts_value.hour = time.hours().count();
ts_value.minute = time.minutes().count();
ts_value.second = time.seconds().count();
ts_value.fraction = time.subseconds().count();
}
auto rc = SQLBindParameter(_handle->stmt,
index,
SQL_PARAM_INPUT,
SQL_C_TYPE_TIMESTAMP,
SQL_TYPE_TIMESTAMP,
sizeof(SQL_TIMESTAMP_STRUCT),
0,
(SQLPOINTER)&ts_value,
sizeof(SQL_DATE_STRUCT),
&indPtr);
if(rc != SQL_SUCCESS && rc != SQL_SUCCESS_WITH_INFO) {
throw sqlpp::exception("ODBC error: couldn't bind date parameter: "+detail::odbc_error(_handle->stmt, SQL_HANDLE_STMT));
}
}
// This teebuf has no buffer. So every character "overflows"
// and can be put directly into the teed buffers.
virtual int overflow(int c)
{
// if previous char was newline, print timestamp now.
if (mNewLine && arg_timestamp) {
char buffer[32];
auto const now = std::chrono::system_clock::now();
auto const dp = floor<date::days>(now);
auto const date = date::year_month_day(dp);
auto const time = date::make_time(now-dp);
int l = snprintf(buffer, sizeof(buffer) - 1, "%04d%02d%02d %02d:%02d:%02lld.%03lld| ", (const int) date.year(), (unsigned) date.month(), (unsigned) date.day(), time.hours().count(), time.minutes().count(), time.seconds().count(), std::chrono::duration_cast<std::chrono::milliseconds>(time.subseconds()).count());
mStreamBuf1->sputn(buffer, l);
if (mStreamBuf2 != NULL)
mStreamBuf2->sputn(buffer, l);
mNewLine = false;
}
// check if this char is a newline.
if (c == '\n')
mNewLine = true;
if (c == EOF)
{
return !EOF;
}
else
{
int const r1 = mStreamBuf1->sputc(c);
int const r2 = (mStreamBuf2 != NULL) ? mStreamBuf2->sputc(c) : 0;
return r1 == EOF || r2 == EOF ? EOF : c;
}
}