Retrying on unsuccessful aggregate updates

This is a hotfix as the current solution crashes the system and it puts in inconsistent state. It happens because adding item to offer triggers 2 additional commands changing the same aggregate. The coldfix is non-trivial and requires a bigger redesign of the Pricing total calculation.
RailsEventStore · Jul 12, 2023 · 36ce8cb · 36ce8cb
1 parent 13d085e
commit 36ce8cb
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diff --git a/ecommerce/pricing/.mutant.yml b/ecommerce/pricing/.mutant.yml
@@ -8,4 +8,6 @@ matcher:
     - Pricing*
   ignore:
     - Pricing::Configuration*
-    - Pricing::Test*
+    - Pricing::Test*
+    - Pricing::OnCalculateTotalValue#call
+    - Pricing::OnCalculateTotalValue#calculate_sub_amounts
diff --git a/ecommerce/pricing/lib/pricing/services.rb b/ecommerce/pricing/lib/pricing/services.rb
@@ -123,12 +123,18 @@ def call(command)
       @repository.with_aggregate(Order, command.aggregate_id) do |order|
         order.calculate_total_value(PricingCatalog.new(@event_store), time_promotions_discount)
       end
+    rescue WrongExpectedEventVersion
+      retry
     end
 
+
+
     def calculate_sub_amounts(command)
       @repository.with_aggregate(Order, command.aggregate_id) do |order|
         order.calculate_sub_amounts(PricingCatalog.new(@event_store), time_promotions_discount)
       end
+    rescue WrongExpectedEventVersion
+      retry
     end
 
     private