Class: ActiveRecord::QueryCache

# File 'activerecord/lib/active_record/query_cache.rb', line 26

def initialize(app)
  @app = app
end

# File 'activerecord/lib/active_record/query_cache.rb', line 30

def call(env)
  connection    = ActiveRecord::Base.connection
  enabled       = connection.query_cache_enabled
  connection_id = ActiveRecord::Base.connection_id
  connection.enable_query_cache!

  response = @app.call(env)
  response[2] = Rack::BodyProxy.new(response[2]) do
    restore_query_cache_settings(connection_id, enabled)
  end

  response
rescue Exception => e
  restore_query_cache_settings(connection_id, enabled)
  raise e
end