第一次调用控制器，定义了常量，第二次调用，“未初始化常量 Oauth”？
我正在尝试让 OAuth gem 与 Rails 3 一起使用，但我遇到了这个奇怪的问题...（独立于 gem，我想我以前遇到过这个问题）
我有一个名为“OauthTestController”的控制器，以及一个名为“ConsumerToken”的模型。模型看起来像这样。
require 'oauth/models/consumers/token'
class ConsumerToken < ActiveRecord::Base
include Oauth::Models::Consumers::Token
end
当我转到“/oauth_test/twitter”时，它会加载 Oauth::Models::Consumers::Token 模块，我可以毫无问题地连接到 twitter。但是当我第二次尝试时（只需刷新 /oauth_test/twitter url），它给了我这个错误：
NameError (uninitialized constant Oauth):
app/models/consumer_token.rb:4
app/models/twitter_token.rb:2
app/controllers/oauth_test_controller.rb:66:in `load_consumer'
这是为什么？它可能与加载路径或处于开发模式有关？
I am trying to get the OAuth gem to work with Rails 3 and I'm running into this weird problem... (independent of the gem, I think I've run into this once before)
I have a controller called "OauthTestController", and a model called "ConsumerToken". The model looks like this.
require 'oauth/models/consumers/token'
class ConsumerToken < ActiveRecord::Base
include Oauth::Models::Consumers::Token
end
When I go to "/oauth_test/twitter", it loads the Oauth::Models::Consumers::Token module and I'm able to connect to twitter no problem. But the second time I try it (just refresh the /oauth_test/twitter url), it gives me this error:
NameError (uninitialized constant Oauth):
app/models/consumer_token.rb:4
app/models/twitter_token.rb:2
app/controllers/oauth_test_controller.rb:66:in `load_consumer'
Why is that? It has something to do with load paths or being in development mode maybe?
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尝试使用 require_or_load 而不是 require。这在开发过程中每次都会强制满载，有时可以帮助解决此类问题。
Try using require_or_load instead of require. That forces full load each time when in development and can sometimes help with this sort of issue.
是的，这与处于开发模式有关。在 development.rb 中设置 config.cache_classes = true 让它工作（但很痛苦）
Yeah it's something to do with being in development mode. Setting config.cache_classes = true in your development.rb get's it working (but is a pain in the ass)