require 'humane_integer'
# Simple model to hold sets of questions and answers.
class BrainBuster < ActiveRecord::Base
VERSION = "0.8.3"
# Attempt to answer a captcha, returns true if the answer is correct.
def attempt?(string)
string = string.strip.downcase
if answer_is_integer?
return string == answer || string == HumaneInteger.new(answer.to_i).to_english
else
return string == answer.downcase
end
end
def self.find_random_or_previous(id = nil)
id ? find_specific_or_fallback(id) : find_random
end
def self.random_function
case connection.adapter_name.downcase
when /sqlite/, /postgres/ then "random()"
else "rand()"
end
end
private
def self.find_random
find(:first, :order => random_function)
end
def self.find_specific_or_fallback(id)
find(id)
rescue ActiveRecord::RecordNotFound
find_random
end
def answer_is_integer?
int_answer = answer.to_i
(int_answer != 0) || (int_answer == 0 && answer == "0")
end
end
