** Branch unlinked: lp:~kormoc/drizzle/950570
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https://bugs.launchpad.net/bugs/950570
Title:
Helper function for returning unix_timestamp
Status in Drizzle:
In Progress
Bug description:
Item objects keep time information in a format inherited from MySQL.
If you want to get that time as a unix timestamp you end up writing
quite many lines of code. It would be convenient to have this as a
utility function so you don't have to copy the code every time you
need to do this conversion. (For instance, it could be a method of the
Item class(es).
For an example of how unix timestamp is computed, see
drizzled/function/time/unix_timestamp.cc
...which provides the functionality to call UNIX_TIMESTAMP() in SQL.
This issue is a feature request to provide a utility function for
Drizzle internal use.
An example consumer of this utility function is found in
plugin/js/js.cc:195:
// DATE/TIME values are also STRING_RESULT, make them a Date type in
v8
// Now we need to get the unix timestamp integer, surprisingly
tricky...
// TODO: This should really be just args[n]->get_epoch_seconds(). I
need to write a separate patch for Item class one of these days.
type::Time ltime;
Timestamp temporal;
args[n]->get_date(ltime, 0);
temporal.set_years(ltime.year);
temporal.set_months(ltime.month);
temporal.set_days(ltime.day);
temporal.set_hours(ltime.hour);
temporal.set_minutes(ltime.minute);
temporal.set_seconds(ltime.second);
temporal.set_epoch_seconds();
if (temporal.is_valid())
{
time_t tmp;
temporal.to_time_t(tmp);
// Pay attention, Ecmascript defines a date as *milliseconds* since
unix epoch
// Also, on platforms where time_t is 32 bit, we need explicit cast
to 64 bit integer
a->Set( n-1, v8::Date::New(((uint64_t)tmp)*1000) );
} else {
a->Set( n-1, v8::String::New(args[n]->val_str(str)->c_str() ) );
}
It should be possible to simply replace this code with a
if ( time_t tsamp = args[n]->get_epoch_seconds() )
{
// Pay attention, Ecmascript defines a date as *milliseconds* since
unix epoch
// Also, on platforms where time_t is 32 bit, we need explicit cast
to 64 bit integer
a->Set( n-1, v8::Date::New(((uint64_t) tstamp )*1000) );
} else {
a->Set( n-1, v8::String::New(args[n]->val_str(str)->c_str() ) );
}
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