Sap and OnUnitAura

[calvid]

I'm trying to extend a mod called cctimer. It basically watches your focus target for debuffs and displays them to you in a window. I'm trying to make it work with rogue crowd control. It's working fine with blind and gouge, but I can't get sap to work. Here's the code in question:

function CCTimer:OnUnitAura( unitId )

if ( unitId ~= "focus" ) then return; end

for i = 1, 40 do

local debuffName,_,_,_,_,_,debuffTime = UnitDebuff( "focus", i );

end

end

This function is registered for OnUnitAura events.

If I print the debuffName variable, it's clear this function is getting called for a wide variety of debuffs - gouge, blind, stuns, poisons, etc. But it doesn't seem to be getting called for sap.

Is sap different in some way? Is there another event I can register to catch it?

Thanks for any help!

[calvid]

Sorry, there's an error in my original post. I meant to say that the OnUnitAura function is registered for the UNIT_AURA event.