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module RailsBigBrother
module Model
def self.included(base)
base.send :extend, ClassMethods
end
module ClassMethods
def big_brother_watch(options = {})
send :include, InstanceMethods
class_attribute :big_brother_options
self.big_brother_options = {}
[:ignore, :only].each do |k|
self.big_brother_options[k] = [options[k]].flatten.compact.map(&:to_s) if options.has_key?(k)
end
after_create :log_create if !options[:on] || options[:on].include?(:create)
before_update :log_update if !options[:on] || options[:on].include?(:update)
after_destroy :log_destroy if !options[:on] || options[:on].include?(:destroy)
end
end
module InstanceMethods
private
def log_create
big_brother_log 'create'
end
def log_update
changed_fields = self.changed
changed_fields = changed_fields - self.class.big_brother_options[:ignore] if self.class.big_brother_options.has_key?(:ignore)
changed_fields = changed_fields & self.class.big_brother_options[:only] if self.class.big_brother_options.has_key?(:only)
unless changed_fields.empty?
big_brother_log 'update', changed_fields.join(',')
end
end
def log_destroy
big_brother_log 'destroy', to_s
end
def big_brother_log(action, *args)
# TODO RailsBigBrother.format, RailsBigBrother.separator
Rails.logger.info "big_brother;#{RailsBigBrother.user};" <<
"#{RailsBigBrother.controller_info_string};" <<
"#{self.class.name};#{self.to_param};#{action};#{args.join(';')}"
end
end
end
end