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module Finder def self.included(base) base.extend ClassMethods class << base alias_method_chain :method_missing, :will_paginate define_method(:per_page) { 30 } unless respond_to? :per_page end end module ClassMethods def method_missing_with_will_paginate(method_id, *args, &block) unless match = /^paginate/.match(method_id.to_s) return method_missing_without_will_paginate(method_id, *args, &block) end options = args.last.is_a?(Hash) ? args.pop : {} page = options[:page].to_i.zero? ? 1 : options[:page].to_i options.delete(:page) limit_per_page = options[:per_page] || per_page options.delete(:per_page) args << options with_scope :find => { :offset => (page - 1) * limit_per_page, :limit => limit_per_page } do send(method_id.to_s.sub(/^paginate/, 'find'), *args) end end end end

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