在 Sinatra 应用程序中,我有
#config.rb
require 'mongoid'
class App
configure do
Mongoid.configure do |config|
name = "my_db"
host = "localhost"
config.master = Mongo::Connection.new.db(name)
config.slaves = [Mongo::Connection.new(host, 27017, :slave_ok => true).db(name)]
config.persist_in_safe_mode = false
end
end
end
#Gemfile
gem "mongoid", "~> 3.0.0"
gem "bson_ext"
它给了我一个错误“`const_missing': uninitialized constant App::Mongo (NameError)” 我该如何解决?