WIP, OC open-close job: finding recently opened order cycles

app/jobs/order_cycle_open_close_job.rb

@@ -0,0 +1,19 @@
+class OrderCycleOpenCloseJob
+  def perform
+    recently_opened_order_cycles.update_all(standing_orders_placed_at: Time.now)
+    recently_opened_order_cycles.each do |order_cycle|
+      Delayed::Job.enqueue(StandingOrderPlacementJob.new(order_cycle))
+    end
+  end
+
+  private
+
+  def recently_opened_order_cycles
+    return @recently_opened_order_cycles unless @recently_opened_order_cycles.nil?
+    @recently_opened_order_cycles =
+      OrderCycle.where(
+        'orders_open_at BETWEEN (?) AND (?) AND standing_orders_placed_at IS NULL',
+        10.minutes.ago, Time.now
+      )
+  end
+end

spec/jobs/order_cycle_open_close_job_spec.rb

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+require 'spec_helper'
+
+describe OrderCycleOpenCloseJob do
+
+  describe "finding recently opened order cycles" do
+    let!(:job) { OrderCycleOpenCloseJob.new }
+    let!(:order_cycle1) { create(:simple_order_cycle, orders_open_at: 11.minutes.ago) }
+    let!(:order_cycle2) { create(:simple_order_cycle, orders_open_at: 9.minutes.ago) }
+    let!(:order_cycle3) { create(:simple_order_cycle, orders_open_at: 2.minutes.ago, standing_orders_placed_at: 1.minute.ago ) }
+    let!(:order_cycle4) { create(:simple_order_cycle, orders_open_at: 1.minute.from_now) }
+
+    it "only returns uninitialized order cycles whose orders_open_at date is within the past 10 minutes" do
+      order_cycles = job.send(:recently_opened_order_cycles)
+      expect(order_cycles).to include order_cycle2
+      expect(order_cycles).to_not include order_cycle1, order_cycle3, order_cycle4
+    end
+  end
+end