在 Rails 3 中使用液体

发布于 2024-10-27 07:40:47 字数 466 浏览 0 评论 0原文

我正在制作一个 Rails 博客引擎用于学习目的。我想使用液体作为模板引擎。我有这样的东西

    ## posts_controller.rb
    ...
    def index
      @posts = Post.all
    end
   ... 
    ## posts/index.html.liquid
    {% for post in posts do %}
      {{ post.title }}
    {% endfor %}

这给了我以下错误：

undefined local variable or method `template' for
#<PostsController:0x103d16290>

我已经在initializers/liquid.rb中加载了LiquidView 请让我知道我的问题是什么。谢谢

原文

Im making a Rails blog engine for learning purpose. I want to use liquid as template engine. I have something like this

    ## posts_controller.rb
    ...
    def index
      @posts = Post.all
    end
   ... 
    ## posts/index.html.liquid
    {% for post in posts do %}
      {{ post.title }}
    {% endfor %}

That gave me the following error:

undefined local variable or method `template' for
#<PostsController:0x103d16290>

I already had LiquidView loaded in initializers/liquid.rb
Please let me know what is my problem.
Thank you

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遇见了你 2024-11-03 07:40:47

据我所知，您应该对属性有液体方法（在您的情况下是“标题”）。尝试这样的事情

class Post < ActiveRecord::Base
  liquid_methods :title
end

看看。

如果不尝试让 Post 类被 Liquid::Drop 继承，

就像

class Posts < Liquid::Drop

end

** 顺便说一句，因为你收到一个错误，声称缺少模板变量，请确保你的液体渲染部分如下

（直接从液体文档复制）

@template = Liquid::Template.parse("hi {{name}}")  # Parses and compiles the template
@template.render( 'name' => 'tobi' )               # Renders the output => "hi tobi"

希望这有助于

欢呼

Sameera

As I know you should have liquid methods for attributes (in your case for 'title'). try something like this

class Post < ActiveRecord::Base
  liquid_methods :title
end

and see.

If not try to make Post class inherited by Liquid::Drop

class Posts < Liquid::Drop

end

** BTW since you get an error claiming missing template variable make sure your liquid rendering part is as follows

(directly copied from liquid doc)

@template = Liquid::Template.parse("hi {{name}}")  # Parses and compiles the template
@template.render( 'name' => 'tobi' )               # Renders the output => "hi tobi"

hope this helps

cheers

sameera

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