discourse/lib/tasks/revisions.rake
David Taylor 23ec819e70
DEV: Introduce debugging rake task for PostRevision issues (#17998)
See https://meta.discourse.org/t/232885 for context. This rake task enumerates problematic records and prints out a sample of each failure.
2022-08-19 11:30:46 +01:00

39 lines
1.1 KiB
Ruby

# frozen_string_literal: true
desc 'Print debug information about post_revisions which cannot be deserialized'
task 'revisions:debug_deserialization' => :environment do
puts "Checking #{PostRevision.count} PostRevision records in batches of 1000... this may take some time..."
sleep 1
counts = Hash.new(0)
examples = Hash.new()
PostRevision.find_each do |revision|
revision.modifications
rescue Psych::DisallowedClass => e
class_name = e.message.sub("Tried to load unspecified class: ", "")
counts[class_name] += 1
examples[class_name] ||= revision
puts "#{Discourse.base_url}/p/#{revision.post_id} (revision number:#{revision.number} id:#{revision.id}) #{e.message}"
end
puts
puts "Done"
puts
puts "---- Summary ----"
puts "Checked records: #{PostRevision.count}"
counts.each_pair { |k, v| puts " #{k}: #{v}" }
puts
puts "---- Examples ----"
puts
examples.each_pair do |class_name, revision|
puts "-- BEGIN Example #{class_name} --"
puts
puts revision.modifications_before_type_cast
puts
puts "-- END Example #{class_name} --"
end
end