Fix use of ActiveRecord::Base in Seeder

Relates to https://gitlab.com/gitlab-org/gitlab/-/issues/350651

lib/gitlab/seeder.rb

@@ -62,10 +62,6 @@ module Gitlab
     end
 
     def self.quiet
-      # Disable database insertion logs so speed isn't limited by ability to print to console
-      old_logger = ActiveRecord::Base.logger
-      ActiveRecord::Base.logger = nil
-
       # Additional seed logic for models.
       Project.include(ProjectSeed)
       User.include(UserSeed)
@@ -75,9 +71,11 @@ module Gitlab
 
       SeedFu.quiet = true
 
-      without_statement_timeout do
-        without_new_note_notifications do
-          yield
+      without_database_logging do
+        without_statement_timeout do
+          without_new_note_notifications do
+            yield
+          end
         end
       end
 
@@ -85,7 +83,6 @@ module Gitlab
     ensure
       SeedFu.quiet = false
       ActionMailer::Base.perform_deliveries = old_perform_deliveries
-      ActiveRecord::Base.logger = old_logger
     end
 
     def self.without_gitaly_timeout
@@ -112,10 +109,30 @@ module Gitlab
     end
 
     def self.without_statement_timeout
-      ActiveRecord::Base.connection.execute('SET statement_timeout=0')
+      Gitlab::Database::EachDatabase.each_database_connection do |connection|
+        connection.execute('SET statement_timeout=0')
+      end
+      yield
+    ensure
+      Gitlab::Database::EachDatabase.each_database_connection do |connection|
+        connection.execute('RESET statement_timeout')
+      end
+    end
+
+    def self.without_database_logging
+      old_loggers = Gitlab::Database.database_base_models.transform_values do |model|
+        model.logger
+      end
+
+      Gitlab::Database.database_base_models.each do |_, model|
+        model.logger = nil
+      end
+
       yield
     ensure
-      ActiveRecord::Base.connection.execute('RESET statement_timeout')
+      Gitlab::Database.database_base_models.each do |connection_name, model|
+        model.logger = old_loggers[connection_name]
+      end
     end
   end
 end

spec/lib/gitlab/seeder_spec.rb

@@ -4,6 +4,26 @@ require 'spec_helper'
 
 RSpec.describe Gitlab::Seeder do
   describe '.quiet' do
+    let(:database_base_models) do
+      {
+        main: ApplicationRecord,
+        ci: Ci::ApplicationRecord
+      }
+    end
+
+    it 'disables database logging' do
+      allow(Gitlab::Database).to receive(:database_base_models)
+        .and_return(database_base_models.with_indifferent_access)
+
+      described_class.quiet do
+        expect(ApplicationRecord.logger).to be_nil
+        expect(Ci::ApplicationRecord.logger).to be_nil
+      end
+
+      expect(ApplicationRecord.logger).not_to be_nil
+      expect(Ci::ApplicationRecord.logger).not_to be_nil
+    end
+
     it 'disables mail deliveries' do
       expect(ActionMailer::Base.perform_deliveries).to eq(true)