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comp.lang.ruby

Win32ole WMI fetch

morbusg

8/8/2007 8:35:00 PM

I wonder what am I missing when trying to put together a script to
save me some typing.

require 'win32ole'
def fetch(where, what)
wmi = WIN32OLE.connect("winmgmts:{impersonationLevel=impersonate}!//
#{ARGV}")
qry = wmi.execquery("select * from win32_#{where}")
qry.each { |i| print "#{i}.#{what}" }
end

fetch("computersystemproduct", "name")

The above yields: #<WIN32OLE:0x2b369cc>.name

If it isn't obvious, I'm trying to get the ComputerSystemProduct.Name
printed out via a helper method. I was expecting the model name of the
computer I'm running.
TIA
1 Answer

Gordon Thiesfeld

8/8/2007 9:07:00 PM

0

>
> require 'win32ole'
> def fetch(where, what)
> wmi = WIN32OLE.connect("winmgmts:{impersonationLevel=impersonate}!//
> #{ARGV}")
> qry = wmi.execquery("select * from win32_#{where}")
> qry.each { |i| print "#{i}.#{what}" }
> end

You're using string interpolation, but that's not what's needed in
this case. You actually need to call an ole method on an ole object.

Try this:
qry.each { |i| print i.send(what) }

Or this:
qry.each { |i| print i[what] }