Calling a Controller method from the command line

Rails
1

Hi All,

I need to run some reports via cron. I know I can use runner and call
a method in a model class. But I’d really like to use templates and
IMO this kind of logic belongs in a controller anyways.

These are periodic reports so I don’t need nor want to leave a server
running all the time, so getting the data via curl/wget isn’t really
an option.

What I really want is
script/controller_runner MyController.my_method

Any suggestions?

2

Hi All,

On 8/10/06, Paul H. [email protected] wrote:

I need to run some reports via cron. I know I can use runner and call
a method in a model class. But I’d really like to use templates and
IMO this kind of logic belongs in a controller anyways.
I never got any responses for this. So I created the below which I
hope isn’t a reinvention of the wheel. Stuck it in scripts and now I
can cron at will.

Not sure if anyone else is interested, but there it is.

Paul H. ([email protected] [email protected])

#!/usr/bin/env ruby
begin
require File.dirname(FILE) + ‘/…/config/boot’

require ‘optparse’

USAGE = “Usage: #{$0} Controller [action] [options]”

options = { :environment => (ENV[‘RAILS_ENV’] || ‘production’).dup }

ARGV.options do |opts|
opts.banner = USAGE

opts.separator ''

opts.on('-e', '--environment=name', String,
        'Specifies the environment for the runner to operate under

(test/development/production).',
‘Default: production’) { |v| options[:environment] = v }

opts.separator ''

opts.on('-h', '--help',
        'Show this help message.') { puts opts; exit }

opts.parse!

end

if (ARGV.empty?)
puts(USAGE)
exit(-1)
end

ENV[‘RAILS_ENV’] = options[:environment]
RAILS_ENV.replace(options[:environment]) if defined?(RAILS_ENV)

require RAILS_ROOT + ‘/config/environment’

require ‘application’
include ActionController::TestProcess

Grab the controller class, constantize turns the string into a Class

object
begin
controller_class = ARGV.first.constantize
rescue Exception => e
$stderr.puts(“Couldn’t find controller ‘#{ARGV.first}’”)
exit(-2)
end

request = ActionController::TestRequest.new
response = ActionController::TestResponse.new
request.action = ARGV[1]
controller_class.process(request, response)
if (response.success?)
puts(response.body)
exit(0)
else
$stderr.puts(response.body)
exit(-3)
end

rescue SystemExit => e
raise

ignore Exit exception

rescue Exception => e
$stderr.puts(e)
exit(-4)
end