Ruby-on-rails 将变量传递给部分，rails 3？
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Pass a variable into a partial, rails 3?
提问by Elliot
I have a loop like such:
我有一个这样的循环：
<% @posts.each do |post| %>
<% render middle %>
<% end %>
Then in my middle partial, how do I access the current post?
然后在我的中间部分，我如何访问当前帖子？
回答by polarblau
Try this:
尝试这个：
<% @posts.each do |post| %>
<%= render 'middle', :post => post %>
<% end %>
Like this you'll have a local variable postavailable within the partial.
像这样，您将post在部分中拥有一个可用的局部变量。
回答by Stefaan Colman
Give it to the partial as a local variable
将其作为局部变量提供给部分
<%= render :partial => 'middle', :locals => { :post => post } %>
Of course, rails also has a shortcut for rendering collections:
当然，rails 也有渲染集合的捷径：
<%= render :partial => 'post', :collection => @posts %>
In this case it will call the partial post for every post with a local variable 'post'
在这种情况下，它将使用局部变量“post”为每个帖子调用部分帖子
You can even render a spacer template between each post:
您甚至可以在每个帖子之间渲染一个间隔模板：
<%= render :partial => 'post', :collection => @posts, :spacer_template => 'post_divider' %>
回答by Felix Andersen
<% @posts.each do |post| %>
<% render middle, :post => post %>
<% end %>
You can now access post as the local variable postin the partial
您现在可以访问 post 作为局部变量post中的局部变量
回答by sevenseacat
Replace <%= render middle %>with <%= render middle, :post => post %>. Then in your middlepartial, you can access the postvariable.
替换<%= render middle %>为<%= render middle, :post => post %>。然后在您的middle部分中，您可以访问该post变量。
