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PORails Caching: Using sweepers for actions which require parameters
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  1. PORails Caching: Using sweepers for actions which require parameters
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    copied!<p>I'm trying to use sweepers to handle my page refreshes. For refreshing index actions, etc everything works fine...but I can't seem to sweepers to interpret page parameters. If anyone can tell me what's wrong with the code below, I'd be very appreciative:</p> <p>Controller:</p> <pre><code>class PostsController &lt; ApplicationController load_and_authorize_resource cache_sweeper :post_sweeper, :only =&gt; [:create, :update, :destroy] caches_page :index caches_page :show caches_action :edit, :new # This refreshes cache correctly def index @posts = Post.all end </code></pre> <p># This creates cache, but does not refresh it (ever). If I place the expire_page command directly into the action (instead of the sweeper), it works fine</p> <pre><code>def update @post = Post.find(params[:id]) respond_to do |format| if @post.update_attributes(params[:post]) flash[:notice] = t(:post_updated) format.html { redirect_to(@post) } format.xml { head :ok } else format.html { render :action =&gt; "edit" } format.xml { render :xml =&gt; @post.errors, :status =&gt; :unprocessable_entity } end end end </code></pre> <p>The sweeper:</p> <pre><code>class PostSweeper &lt; ActionController::Caching::Sweeper observe Post def after_create(record) expire_cache_for_index(record) end def after_update(record) expire_cache_for_index(record) expire_cache_for_post(record) expire_cache_for_edit(record) end def after_destroy(record) expire_cache_for_index(record) expire_cache_for_post(record) expire_cache_for_edit(record) end private def expire_cache_for_index(record) expire_page :controller =&gt; 'posts', :action =&gt; 'index' end def expire_cache_for_post(record) expire_page :controller =&gt; 'posts', :action =&gt; 'show', :id =&gt; record.id end def expire_case_for_edit(record) expire_action :controller =&gt; 'posts', :action =&gt; 'edit', :id =&gt; record.id end end </code></pre>
 

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