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Size: 1.15 KB
Versions: 40
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Stored size: 1.15 KB
Contents
require 'csv'
module ActiveAdmin
class ResourceController < BaseController
# This module overrides CSV responses to allow large data downloads.
# Could be expanded to JSON and XML in the future.
#
module Streaming
def index
super do |format|
format.csv { stream_csv }
yield(format) if block_given?
end
end
protected
def stream_resource(&block)
headers['X-Accel-Buffering'] = 'no'
headers['Cache-Control'] = 'no-cache'
if ActiveAdmin.application.disable_streaming_in.include? Rails.env
self.response_body = block['']
else
self.response_body = Enumerator.new &block
end
end
def csv_filename
"#{resource_collection_name.to_s.gsub('_', '-')}-#{Time.zone.now.to_date.to_s(:default)}.csv"
end
def stream_csv
headers['Content-Type'] = 'text/csv; charset=utf-8' # In Rails 5 it's set to HTML??
headers['Content-Disposition'] = %{attachment; filename="#{csv_filename}"}
stream_resource &active_admin_config.csv_builder.method(:build).to_proc.curry[self]
end
end
end
end
Version data entries
40 entries across 40 versions & 4 rubygems