Hi folks,
Im trying to use an xmlrpc server and have it serve data using
activerecord, but every request seems to eat up a mysql database
connection, until I run out with “Too many connections”. I don’t know
enough ruby/rails (or rather ActiveRecord) to figure this one out.
ruby -v
ruby 1.8.4 (2005-12-24) [i686-linux]
rails -v
Rails 1.0.0
code below:
Here is some simplified code exhibiting this behavior:
my server code:
require ‘xmlrpc/server’
require ‘rubygems’
require_gem ‘activerecord’
a standard user table with name, email, etc
class User < ActiveRecord::Base
ActiveRecord::Base.establish_connection(
:adapter => “mysql”,
# etc. etc.
)
end
given a user id get the user name
def get_username(id)
u = User.find(id)
return u.username
end
s = XMLRPC::Server.new(8080)
s.add_handler(“get_username”) do |user_id|
get_username(user_id)
end
s.set_default_handler do |name, *args|
raise XMLRPC::FaultException.new(-99, “Method #{name} missing” +
" or wrong number of parameters!")
end
client code:
require ‘xmlrpc/client’
client = XMLRPC::Client.new(“localhost”,“/RPC2”,8080)
begin
param = client.call(“get_username”,123)
puts “Hello #{param}”
rescue XMLRPC::FaultException => e
puts “Error:”
puts e.faultCode
puts “faultString = [#{e.faultString}]”
end
“PragDave” had a recent blog on a related note:
http://blogs.pragprog.com/cgi-bin/pragdave.cgi/Tech/Ruby/Connections.rdoc
but again being a newbie to ruby/rails, my gymnastics with trying to
put the ActiveRecord::Base.establish_connection()
/ ActiveRecord.connection() method in and out of various wrapper
classes/class variables didn’t pan out.
thanks,
-Mehryar