Aim: perform a method chaining based on hash

Required operation:

ErrorLog.event_eq([3, 7]).subdomain_like("default").user_id_eq(100)

Given:

search_opts = { :event_eq => [3, 7], :subdomain_like => "default", :user_id_eq => 100 }

Solution:

search_opts.inject(ErrorLog) { |memo, (k, v)| memo.send(k, v) }

This tip was submitted by sumskyi.