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# File 'lib/acts_as_sweepable.rb', line 12
def sweep(*sources)
options = sources..stringify_keys
options = options.inject({}){|memo,(k,v)| memo[k.to_sym] = v; memo}
time_ago = options.delete(:time)
conditions = options.delete(:conditions)
columns = [options.delete(:columns) || :updated_at].flatten
remove_method = options.delete(:method) || :destroy_all
time = case time_ago
when /^(\d+)m$/ then Time.now - $1.to_i.minute
when /^(\d+)h$/ then Time.now - $1.to_i.hour
when /^(\d+)d$/ then Time.now - $1.to_i.day
else raise(InvalidTime, time_ago)
end
statement = []
columns.each do |column|
statement << "#{column} < '#{time.to_s(:db)}'"
end
statement = "(#{statement.join(' OR ')})"
conditions = "AND #{conditions} " if conditions
if block_given?
els = self.where("#{statement} #{conditions}")
els.find_each {|el| yield el }
end
res = self.send(remove_method, "#{statement} #{conditions}")
case res
when Integer
res
when nil
0
when Array
res.length
end
end
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