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I am confused on how this returns:
def utc2user(t)
ENV["TZ"] = current_user.time_zone_name
res = t.getlocal
ENV["TZ"] = "UTC"
res
end
It first sets the ENV variable, then sets 'res' to the local value, then re-assignes ENV variable, then returns res?
Not sure I understand how this is convering from UTC to the user time zone?
869
Ruby methods are very similar to functions in any other programming language. Ruby methods are used to bundle one or more repeatable statements into a single unit.
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The first line is setting the environmental time zone variable to the user's time zone in order to get the res value in the correct time for that user. If it didn't set it to the user's, the time would still be in UTC.
It then sets the environmental variable back to UTC time, which I assume is the application's default.
It then returns res.
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