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module ModelTokenizer
module Base
CHARSET = %w{
a b c d e f g h i j k m n o p q r s t u v w x y z
A B C D E F G H J K L M N P R S T W X Y Z
2 3 4 5 6 7 8 9
- _
}
#Default length is 14 characters. Provides
#56!/(14!*(56-14)!) = 5,804,731,963,800 unique tokens.
@@model_tokenizer_token_length = 14
def model_tokenizer_token_length
@@model_tokenizer_token_length
end
def has_token(*attributes)
options = {
:length => @@model_tokenizer_token_length
}.merge!(attributes.last.is_a?(Hash) ? attributes.pop : {})
if(!options[:length].is_a?(Integer) || options[:length] < 8)
options[:length] = @@model_tokenizer_token_length
end
@@model_tokenizer_token_length = options[:length]
include InstanceMethods
end
module InstanceMethods
protected
def generate_token
self.token = loop do
random_token = (0...self.class.model_tokenizer_token_length).map{CHARSET[rand(CHARSET.size)]}.join
break random_token unless self.class.exists?(:token => random_token)
end
end
end
end
end
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