Bulk update to Conolophus subcristatus

lib/tasks/ephemeral/set_eu_opinions_to_not_current.rake

@@ -0,0 +1,57 @@
+namespace :ephemeral do
+  ##
+  # See ticket cites-support-maintenance 435
+  #
+  # Following SRG 107, certain opinions on Conolophus subcristatus (4404), which
+  # are applied to all countries, have changed as follows:
+  #
+  # To update: `Negative` opinions for sources W and F to be made not current
+  # New opinions: `Negative removed` for sources W and F; mark as not current
+  #
+  # It does not make sense to make these changes manually.
+  task set_eu_opinions_to_not_current: :environment do
+    OLD_EVENT_NAME = 'SRG 92'
+    NEW_EVENT_NAME = 'SRG 107'
+    OLD_DECISION_TYPE = 'Negative'
+    NEW_DECISION_TYPE = 'Negative removed'
+    SOURCE_CODES = [ 'W', 'F' ]
+
+    ApplicationRecord.transaction do
+      new_event = Event.find_by!(name: NEW_EVENT_NAME)
+      new_type = EuDecisionType.find_by!(name: NEW_DECISION_TYPE)
+
+      EuDecision.joins(
+        :eu_decision_type,
+        :start_event,
+        :source
+      ).where(
+        taxon_concept_id: 4404,
+        is_current: true,
+        eu_decision_type: { name: OLD_DECISION_TYPE },
+        start_event: { name: OLD_EVENT_NAME },
+        source: { code: SOURCE_CODES }
+      ).map do |decision|
+        decision.update!(
+          is_current: false,
+          # Following discussion with SB, end_date is not used.
+          # end_date: new_event.effective_at,
+          end_event: new_event
+        )
+
+        replacement_decision = decision.dup
+
+        replacement_decision.is_current = false
+        replacement_decision.eu_decision_type = new_type
+        replacement_decision.start_event = new_event
+        replacement_decision.start_date = new_event.effective_at # todo - confirm
+        replacement_decision.note = 'All countries' # todo - specify
+
+        replacement_decision.save!
+
+        replacement_decision
+      end
+
+      raise 'Dry run: Rollback'
+    end
+  end
+end