ruby on rails

I'm using acts-as-taggable-on gem v.2.4.1 with rails v.3.2.13 and ruby 1.9.3p392. I've just upgraded the gem from v.2.2.1 to v.2.4.1 and following these instructions I've added a 'cached_tag_list' column to my database. The column seems to update as expected when a record is saved/updated but when I try to fetch tagged records I can still see SQL tag queries being performed (and not fetching cached tags). This is my code in my view:

<% if !tape.tag_list.empty? %>
    <% for tag in tape.tags %>
        <span><%= tag.name %></span>
     <% end %>
<% end %>

My model has the following line:

acts_as_taggable_on :tags

And here's a screenshot from newrelic showing the SQL queries being performed even though these records have saved tag strings in the ''cached_tag_list' database column.

Any ideas how to enable caching with this gem?

Thanks, Alex

---

Until this bug is fixed, here's a workaround I've implemented:

    <% if tape.cached_tag_list != "" %>
        <% for tag in tape.cached_tag_list.split(', ') %>
            <span><%= tag %></span>
        <% end %>
    <% end %>

Since the cached_tag_list column is updated properly every time a record is saved I'm using it to get each record's tags without calling extra SQL queries, just one. Since the cached_tag_list column stores a string with comma-seperated tags I'm using split() function to get each one of them.

I'm sharing this in case this is useful to anyone else..

链接地址: http://www.djcxy.com/p/36024.html

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