discourse/db/fixtures/001_refresh.rb

# frozen_string_literal: true

class SeedData::Refresher
  @mutex = Mutex.new

  def self.refresh!
    return if @refreshed

    @mutex.synchronize do
      return if @refreshed
      # Fix any bust caches post initial migration
      # Not that reset_column_information is not thread safe so we have to be careful
      # not to run it concurrently within the same process.
      ActiveRecord::Base.connection.tables.each do |table|
        table.classify.constantize.reset_column_information rescue nil
      end

      @refreshed = true
    end
  end
end

SeedData::Refresher.refresh!
SiteSetting.refresh!