1 files changed, 79 insertions, 0 deletions
diff --git a/db/migrate/20210818175949_update_integrations_trigger_type_new_on_insert.rb b/db/migrate/20210818175949_update_integrations_trigger_type_new_on_insert.rb
new file mode 100644
index 00000000000..2999a6fd4f6
--- /dev/null
+++ b/db/migrate/20210818175949_update_integrations_trigger_type_new_on_insert.rb
@@ -0,0 +1,79 @@
+# frozen_string_literal: true
+
+class UpdateIntegrationsTriggerTypeNewOnInsert < ActiveRecord::Migration[6.1]
+  include Gitlab::Database::SchemaHelpers
+
+  FUNCTION_NAME = 'integrations_set_type_new'
+
+  def up
+    # Update `type_new` dynamically based on `type`.
+    #
+    # The old class names are in the format `AbcService`, and the new ones `Integrations::Abc`.
+    create_trigger_function(FUNCTION_NAME, replace: true) do
+      <<~SQL
+        UPDATE integrations SET type_new = regexp_replace(NEW.type, '\\A(.+)Service\\Z', 'Integrations::\\1')
+        WHERE integrations.id = NEW.id;
+        RETURN NULL;
+      SQL
+    end
+  end
+
+  def down
+    # We initially went with this static mapping since we assumed that new integrations could
+    # just use the correct class name directly in `type`, but this will complicate the data migration
+    # since we plan to drop `type` at some point and replace it with `type_new`, so we still need
+    # to keep this column filled for all records.
+    create_trigger_function(FUNCTION_NAME, replace: true) do
+      <<~SQL
+        WITH mapping(old_type, new_type) AS (VALUES
+          ('AsanaService',                   'Integrations::Asana'),
+          ('AssemblaService',                'Integrations::Assembla'),
+          ('BambooService',                  'Integrations::Bamboo'),
+          ('BugzillaService',                'Integrations::Bugzilla'),
+          ('BuildkiteService',               'Integrations::Buildkite'),
+          ('CampfireService',                'Integrations::Campfire'),
+          ('ConfluenceService',              'Integrations::Confluence'),
+          ('CustomIssueTrackerService',      'Integrations::CustomIssueTracker'),
+          ('DatadogService',                 'Integrations::Datadog'),
+          ('DiscordService',                 'Integrations::Discord'),
+          ('DroneCiService',                 'Integrations::DroneCi'),
+          ('EmailsOnPushService',            'Integrations::EmailsOnPush'),
+          ('EwmService',                     'Integrations::Ewm'),
+          ('ExternalWikiService',            'Integrations::ExternalWiki'),
+          ('FlowdockService',                'Integrations::Flowdock'),
+          ('HangoutsChatService',            'Integrations::HangoutsChat'),
+          ('IrkerService',                   'Integrations::Irker'),
+          ('JenkinsService',                 'Integrations::Jenkins'),
+          ('JiraService',                    'Integrations::Jira'),
+          ('MattermostService',              'Integrations::Mattermost'),
+          ('MattermostSlashCommandsService', 'Integrations::MattermostSlashCommands'),
+          ('MicrosoftTeamsService',          'Integrations::MicrosoftTeams'),
+          ('MockCiService',                  'Integrations::MockCi'),
+          ('MockMonitoringService',          'Integrations::MockMonitoring'),
+          ('PackagistService',               'Integrations::Packagist'),
+          ('PipelinesEmailService',          'Integrations::PipelinesEmail'),
+          ('PivotaltrackerService',          'Integrations::Pivotaltracker'),
+          ('PrometheusService',              'Integrations::Prometheus'),
+          ('PushoverService',                'Integrations::Pushover'),
+          ('RedmineService',                 'Integrations::Redmine'),
+          ('SlackService',                   'Integrations::Slack'),
+          ('SlackSlashCommandsService',      'Integrations::SlackSlashCommands'),
+          ('TeamcityService',                'Integrations::Teamcity'),
+          ('UnifyCircuitService',            'Integrations::UnifyCircuit'),
+          ('YoutrackService',                'Integrations::Youtrack'),
+          ('WebexTeamsService',              'Integrations::WebexTeams'),
+
+          -- EE-only integrations
+          ('GithubService',                  'Integrations::Github'),
+          ('GitlabSlackApplicationService',  'Integrations::GitlabSlackApplication')
+        )
+
+        UPDATE integrations SET type_new = mapping.new_type
+        FROM mapping
+        WHERE integrations.id = NEW.id
+          AND mapping.old_type = NEW.type;
+        RETURN NULL;
+      SQL
+    end
+  end
+end