fix: don't drop column from view in down step, because you can't remove a column from a view in posgres

Author: bethesque

db/migrations/20190909_add_test_results_to_all_verifications.rb

@@ -18,19 +18,6 @@
   end
 
   down do
-    create_or_replace_view(:all_verifications,
-      from(:verifications).select(
-        Sequel[:verifications][:id],
-        Sequel[:verifications][:number],
-        :success,
-        :provider_version_id,
-        Sequel[:v][:number].as(:provider_version_number),
-        Sequel[:v][:order].as(:provider_version_order),
-        :build_url,
-        :pact_version_id,
-        :execution_date,
-        Sequel[:verifications][:created_at]
-        ).join(:versions, {id: :provider_version_id}, {:table_alias => :v})
-    )
+    # do nothing - you can't drop columns from a postgres view
   end
 end

db/migrations/20190910_add_test_results_to_latest_verifications.rb

@@ -32,30 +32,6 @@
   end
 
   down do
-    v = :verifications
-    create_or_replace_view(:latest_verifications,
-      from(v)
-        .select(
-          Sequel[v][:id],
-          Sequel[v][:number],
-          Sequel[v][:success],
-          Sequel[:s][:number].as(:provider_version),
-          Sequel[v][:build_url],
-          Sequel[v][:pact_version_id],
-          Sequel[v][:execution_date],
-          Sequel[v][:created_at],
-          Sequel[v][:provider_version_id],
-          Sequel[:s][:number].as(:provider_version_number),
-          Sequel[:s][:order].as(:provider_version_order))
-        .join(:latest_verification_numbers,
-          {
-            Sequel[v][:pact_version_id] => Sequel[:lv][:pact_version_id],
-            Sequel[v][:number] => Sequel[:lv][:latest_number]
-          }, { table_alias: :lv })
-        .join(:versions,
-          {
-            Sequel[v][:provider_version_id] => Sequel[:s][:id]
-          }, { table_alias: :s })
-    )
+    # do nothing - you can't drop columns from a postgres view
   end
 end

db/migrations/20190911_add_test_results_to_latest_verifications_for_pact_versions.rb

@@ -29,30 +29,6 @@
   end
 
   down do
-    # The most recent verification for each pact_version
-    v = :verifications
-    create_or_replace_view(:latest_verifications_for_pact_versions,
-      from(v)
-        .select(
-          Sequel[v][:id],
-          Sequel[v][:number],
-          Sequel[v][:success],
-          Sequel[v][:build_url],
-          Sequel[v][:pact_version_id],
-          Sequel[v][:execution_date],
-          Sequel[v][:created_at],
-          Sequel[v][:provider_version_id],
-          Sequel[:s][:number].as(:provider_version_number),
-          Sequel[:s][:order].as(:provider_version_order))
-        .join(:latest_verification_ids_for_pact_versions,
-          {
-            Sequel[v][:pact_version_id] => Sequel[:lv][:pact_version_id],
-            Sequel[v][:id] => Sequel[:lv][:latest_verification_id]
-          }, { table_alias: :lv })
-        .join(:versions,
-          {
-            Sequel[v][:provider_version_id] => Sequel[:s][:id]
-          }, { table_alias: :s })
-    )
+    # do nothing - you can't drop columns from a postgres view
   end
 end