Lua HasAura

Description

HasAura(id) returns a true if a player or a unit has a specified Aura otherwise it returns false.

Usage/Example

This script will check if the player has Mark of the Wild. If he hasn’t it will buff the player.

if player:HasAura(1126) == true then -- 1126 = Mark of the Wild
  player:SendBroadcastMessage("You already have Mark of the Wild")
else
  player:FullCastSpellOnTarget(1126, player)
end
end