Rails 使用块渲染部分内容

发布于 2024-09-03 22:13:31 字数 1703 浏览 9 评论 0 原文

我正在尝试重新使用我编写的提供面板样式的 html 组件。像这样:

  <div class="v-panel">
    <div class="v-panel-tr"></div>
    <h3>Some Title</h3>
    <div class="v-panel-c">
      .. content goes here
    </div>
    <div class="v-panel-b"><div class="v-panel-br"></div><div class="v-panel-bl"></div></div>
  </div>

所以我看到渲染需要一个块。我想然后我可以做这样的事情:

# /shared/_panel.html.erb
<div class="v-panel">
  <div class="v-panel-tr"></div>
  <h3><%= title %></h3>
  <div class="v-panel-c">
    <%= yield %>
  </div>
  <div class="v-panel-b"><div class="v-panel-br"></div><div class="v-panel-bl"></div></div>
</div>

我想做这样的事情:

#some html view
<%= render :partial => '/shared/panel', :locals =>{:title => "Some Title"} do %>
  <p>Here is some content to be rendered inside the panel</p>
<% end %>

不幸的是,这不适用于此错误:

ActionView::TemplateError (/Users/bradrobertson/Repos/VeloUltralite/source/trunk/app/views/sessions/new.html.erb:1: , unexpected tRPAREN

old_output_buffer = output_buffer;;@output_buffer = '';  __in_erb_template=true ; @output_buffer.concat(( render :partial => '/shared/panel', :locals => {:title => "Welcome"} do ).to_s)
on line #1 of app/views/sessions/new.html.erb:
1: <%= render :partial => '/shared/panel', :locals => {:title => "Welcome"} do -%>
...

所以它不喜欢带有块的 = ,但是如果我删除它,然后它就不会输出任何内容。

有谁知道如何做我想在这里实现的目标?我想在我网站的许多地方重复使用这个面板 html。

I'm trying to re-use an html component that i've written that provides panel styling. Something like:

  <div class="v-panel">
    <div class="v-panel-tr"></div>
    <h3>Some Title</h3>
    <div class="v-panel-c">
      .. content goes here
    </div>
    <div class="v-panel-b"><div class="v-panel-br"></div><div class="v-panel-bl"></div></div>
  </div>

So I see that render takes a block. I figured then I could do something like this:

# /shared/_panel.html.erb
<div class="v-panel">
  <div class="v-panel-tr"></div>
  <h3><%= title %></h3>
  <div class="v-panel-c">
    <%= yield %>
  </div>
  <div class="v-panel-b"><div class="v-panel-br"></div><div class="v-panel-bl"></div></div>
</div>

And I want to do something like:

#some html view
<%= render :partial => '/shared/panel', :locals =>{:title => "Some Title"} do %>
  <p>Here is some content to be rendered inside the panel</p>
<% end %>

Unfortunately this doesn't work with this error:

ActionView::TemplateError (/Users/bradrobertson/Repos/VeloUltralite/source/trunk/app/views/sessions/new.html.erb:1: , unexpected tRPAREN

old_output_buffer = output_buffer;;@output_buffer = '';  __in_erb_template=true ; @output_buffer.concat(( render :partial => '/shared/panel', :locals => {:title => "Welcome"} do ).to_s)
on line #1 of app/views/sessions/new.html.erb:
1: <%= render :partial => '/shared/panel', :locals => {:title => "Welcome"} do -%>
...

So it doesn't like the = obviously with a block, but if I remove it, then it just doesn't output anything.

Does anyone know how to do what I'm trying to achieve here? I'd like to re-use this panel html in many places on my site.

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评论(5

蓝海似她心 2024-09-10 22:13:32

根据已接受的答案,这对我使用 Rails 4 来说效果很好。

我们可以这样渲染面板:

= render_panel('Non Compliance Reports', type: 'primary') do
  %p your content goes here!

< img src="https://i.sstatic.net/s1uyO.png" alt="在此处输入图像描述">

这需要一个辅助方法和一个共享视图:

辅助方法 (ui_helper.rb)

def render_panel(heading, options = {}, &block)
  options.reverse_merge!(type: 'default')
  options[:panel_classes] = ["panel-#{options[:type]}"]

  render layout: '/ui/panel', locals: { heading: heading, options: options } do
    capture(&block)
  end
end

View ( /ui/panel.html.haml)

.panel{ class: options[:panel_classes] }
  .panel-heading= heading
  .panel-body
    = yield

Based on the accepted answer this is what worked well for me using Rails 4.

We can render a panel as such:

= render_panel('Non Compliance Reports', type: 'primary') do
  %p your content goes here!

enter image description here

This requires a helper method and a shared view:

helper method (ui_helper.rb)

def render_panel(heading, options = {}, &block)
  options.reverse_merge!(type: 'default')
  options[:panel_classes] = ["panel-#{options[:type]}"]

  render layout: '/ui/panel', locals: { heading: heading, options: options } do
    capture(&block)
  end
end

View (/ui/panel.html.haml)

.panel{ class: options[:panel_classes] }
  .panel-heading= heading
  .panel-body
    = yield
我很坚强 2024-09-10 22:13:32

我认为如果你先将它分配给一个变量然后输出它,它会起作用(只是做了快速脏测试)。

<% foo = render :partial => '/shared/panel', :locals =>{:title => "Some Title"} do %>
<p>Here is some content to be rendered inside the panel</p>
<% end %>
<%= foo %>

I think it will work (just did quick dirty test) if you assign it to a variable first and then output it.

<% foo = render :partial => '/shared/panel', :locals =>{:title => "Some Title"} do %>
<p>Here is some content to be rendered inside the panel</p>
<% end %>
<%= foo %>
弥枳 2024-09-10 22:13:31

虽然上面的两个答案都有效(好吧,托尼链接到的例子),但我最终在上面的帖子中找到了最简洁的答案(Kornelis Sietsma 的评论),

我猜 render :layout 确实正是我正在寻找的东西:

# Some View
<%= render :layout => '/shared/panel', :locals => {:title => 'some title'} do %>
  <p>Here is some content</p>
<% end %>

结合:

# /shared/_panel.html.erb
<div class="v-panel">
  <div class="v-panel-tr"></div>
  <h3><%= title -%></h3>
  <div class="v-panel-c">
    <%= yield %>
  </div>
</div>

While both of those answers above work (well the example that tony links to anyway) I ended up finding the most succinct answer in that above post (comment by Kornelis Sietsma)

I guess render :layout does exactly what I was looking for:

# Some View
<%= render :layout => '/shared/panel', :locals => {:title => 'some title'} do %>
  <p>Here is some content</p>
<% end %>

combined with:

# /shared/_panel.html.erb
<div class="v-panel">
  <div class="v-panel-tr"></div>
  <h3><%= title -%></h3>
  <div class="v-panel-c">
    <%= yield %>
  </div>
</div>
稍尽春風 2024-09-10 22:13:31

这是基于之前答案的替代方案。

shared/_modal.html.erb 上创建您的部分:

<div class="ui modal form">
  <i class="close icon"></i>
  <div class="header">
    <%= heading %>
  </div>
  <div class="content">
    <%= capture(&block) %>
  </div>
  <div class="actions">
    <div class="ui negative button">Cancel</div>
    <div class="ui positive button">Ok</div>
  </div>
</div>

application_helper.rb 上定义您的方法:

def modal_for(heading, &block)
  render(
    partial: 'shared/modal',
    locals: { heading: heading, block: block }
  )
end

从任何视图调用它:

<%= modal_for('My Title') do |t| %>
  <p>Here is some content to be rendered inside the partial</p>
<% end %>

Here's an alternative based on previous answers.

Create your partial on shared/_modal.html.erb:

<div class="ui modal form">
  <i class="close icon"></i>
  <div class="header">
    <%= heading %>
  </div>
  <div class="content">
    <%= capture(&block) %>
  </div>
  <div class="actions">
    <div class="ui negative button">Cancel</div>
    <div class="ui positive button">Ok</div>
  </div>
</div>

Define your method on application_helper.rb:

def modal_for(heading, &block)
  render(
    partial: 'shared/modal',
    locals: { heading: heading, block: block }
  )
end

Call it from any view:

<%= modal_for('My Title') do |t| %>
  <p>Here is some content to be rendered inside the partial</p>
<% end %>
鱼窥荷 2024-09-10 22:13:31

您可以使用捕获助手,甚至可以在渲染调用中内联:

<%= render 'my_partial',
           :locals => { :title => "Some Title" },
           :captured => capture { %>
    <p>Here is some content to be rendered inside the partial</p>
<% } %>

和在共享/面板:中,

<h3><%= title %></h3>
<div class="my-outer-wrapper">
  <%= captured %>
</div>

这将产生:

<h3>Some Title</h3>
<div class="my-outer-wrapper">
  <p>Here is some content to be rendered inside the partial</p>
</div>

请参阅 http://api.rubyonrails.org/classes/ActionView/Helpers/CaptureHelper.html

You can use the capture helper, and even inline in the render call :

<%= render 'my_partial',
           :locals => { :title => "Some Title" },
           :captured => capture { %>
    <p>Here is some content to be rendered inside the partial</p>
<% } %>

and in shared/panel:

<h3><%= title %></h3>
<div class="my-outer-wrapper">
  <%= captured %>
</div>

which will produce:

<h3>Some Title</h3>
<div class="my-outer-wrapper">
  <p>Here is some content to be rendered inside the partial</p>
</div>

See http://api.rubyonrails.org/classes/ActionView/Helpers/CaptureHelper.html

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