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Possible Duplicate:
Passing only two variables between controller and view - best practice?
这是我的 Action :
def list
@codes = Code.order("created_at")
@languages = Language.order('name').collect {|l| [l.name, l.coderay]}
end
这是我的看法(我删除了一些行):
<% @codes.each do |code| %>
<div class="code">
<%= link_to code.title, :action => 'show', :id => code.id %>
<% if code.author %>
@<%= code.author %>
<% end %>
</div>
<% end %>
<%= render :partial => 'shared/error_messages', :locals => {:object => @code} %>
<%= form_for :code, :url => {:action => 'create' }, :html => {:multipart => true} do |f| %>
<%= f.text_field :title %><br />
<%= f.text_area :content %><br>
<%= f.select(:language, @languages, {:selected => 'text'}) %>
<%= f.text_field :author %><br>
<%= f.submit "Submit code" %>
<% end %>
里面有3个变量:@codes(帖子列表)，@code(当前帖子，在另一个 Action 中使用)和@languages。
我的 IDE 写道:
At most two instance variables should be shared between controller and view
This inspection warns if there are more than two instance variables shared between a controller and a view. A controller should only manage one instance variable, plus a second one for the current_user variable.
通常我在 Controller 和 View 之间共享更多变量(在 PHP 中)，有时会超过 10 个。
在 Rails 中是如何完成的？