Allow configuration of task periods

lib/foodsoft_config.rb

@@ -226,6 +226,8 @@ class FoodsoftConfig
         currency_space: true,
         foodsoft_url: 'https://github.com/foodcoops/foodsoft',
         contact: {}, # avoid errors when undefined
+        tasks_period_days: 7,
+        tasks_upfront_days: 49,
         # The following keys cannot, by default, be set by foodcoops themselves.
         protected: {
           multi_coop_install: true,

lib/tasks/foodsoft.rake

@@ -40,7 +40,9 @@ namespace :foodsoft do
   task :create_upcoming_periodic_tasks => :environment do
     for tg in PeriodicTaskGroup.all
       if tg.has_next_task?
-        while tg.next_task_date.nil? or tg.next_task_date < Date.today + 50
+        create_until = Date.today + FoodsoftConfig[:tasks_upfront_days].to_i + 1
+        rake_say "creating until #{create_until}"
+        while tg.next_task_date.nil? or tg.next_task_date < create_until
           tg.create_next_task
         end
       end