Implement spring and reset counters functionality

app/models/supplier.rb

@@ -115,6 +115,35 @@ class Supplier
     confirmable
   end
 
+  def self.reset_counters!
+    spec = Order.by_supplier_id_and_state(reduce: true, group_level: 2)
+    reset_order_counters_with_spec spec
+  end
+
+  def reset_counters!
+    spec = Order.by_supplier_id_and_state(startkey: [id], endkey: [id, {}], reduce: true, group_level: 2)
+    self.class.reset_order_counters_with_spec spec
+  end
+
+  def self.reset_order_counters_with_spec(spec)
+    # taken from the couch_potato source since we want a model/custom mix here (hmmmm, something that should be fixed in the couchbase version)
+    results = CouchPotato::View::ViewQuery.new(
+      database.couchrest_database,
+      spec.design_document,
+      {spec.view_name => { map: spec.map_function, reduce: spec.reduce_function} },
+      ({spec.list_name => spec.list_function} unless spec.list_name.nil?),
+      spec.language
+    ).query_view!(spec.view_parameters)
+    Array.wrap(results['rows']).each do |result|
+      supplier_id, state = result['key']
+      case state
+      when 'placed' then Qwaiter::Counter.set "supplier:#{supplier_id}:orders_in_process", result['value']
+      when 'active' then Qwaiter::Counter.set "supplier:#{supplier_id}:orders_delivered", result['value']
+      end
+    end
+  end
+
+
   # Send confirmation instructions by email
   def send_confirmation_instructions(*args)
     self.confirmation_token = nil if reconfirmation_required?