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# This conf sample is fetched from http://unicorn.bogomips.org/examples/nginx.conf | |
worker_processes 4; | |
user root; | |
pid /tmp/nginx.pid; | |
error_log /tmp/nginx.error.log warn; | |
events { |
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class Bill | |
def assign_rps_number_and_serial(save_it = nil) | |
rps = Bill.order(:rps_serial, :rps_number).where('rps_number IS NOT NULL').select(:rps_number, :rps_serial).last | |
number = rps.try(:rps_number) || 1 | |
serial = rps.try(:rps_serial) || 'A' | |
self.rps_number, self.rps_serial = if number < 999999999999 | |
[number + 1, serial] | |
else | |
[1, serial + 'A'] |
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