从Rails中的印象派宝石中重新打开印象类4(Reopen Impression Class from Impressionist Gem in Rails 4)

从Rails中的印象派宝石中重新打开印象类4(Reopen Impression Class from Impressionist Gem in Rails 4)

我试图修改印象派宝石类“印象”无济于事。

我尝试过以下方法：

class Impression def hello "world" end end Impression.class_eval do end

在：/app/models/impression.rb和/lib/impression.rb中（包含此文件夹的正确配置）

我究竟做错了什么？ 我正在使用Rails 4.理想情况下，我想添加一个活动的记录关联并添加一些帮助方法。

I'm trying to modify the Impressionist gem class "Impression" to no avail.

I've tried the following:

class Impression def hello "world" end end Impression.class_eval do end

both in: /app/models/impression.rb and /lib/impression.rb (with correct configuration to include this folder)

What am I doing wrong? I'm using Rails 4. Ideally, I'd like to add an active record association and add some helper methods.

最满意答案

如果您要覆盖gem提供的类，则需要手动要求您的版本来包含更改。 这通常在初始化程序中完成。

If you're overriding a class provided by a gem, you will need to manually require your version to get your changes included. This is usually done in an initializer.