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Editorial Team
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Asked: 2026-05-23T15:05:28+00:00

I was migrating a system rail2 to rails3, and got a problem when I

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I was migrating a system rail2 to rails3, and got a problem when I tried to delete a item from a list. I just clicked the delete link, then session was destroyed and item was not destroyed. That problem happened in all controllers and with all three session stores. I deleted gems except rails and mysql2 and tried it but result was same. I emptied destroy actions of session stores but that was happened too. Btw, if I didn’t use session, the item was destroyed.

view:

    <%= link_to image_tag("icons/10.png" ,:size => "20x20", :alt => "show", :border => 0, :class => "show"), admin_info_path(info) -%>
    <%= link_to image_tag("icons/2.png" ,:size => "20x20", :alt => "edit", :border => 0, :class => "edit"), edit_admin_info_path(info) -%>
    <%= link_to image_tag("icons/9.png" ,:size => "20x20", :alt => "delete", :border => 0, :class => "delete"), admin_info_path(info), :confirm => 'Are you sure?', :method => :delete %>

Gemfile:

gem 'rails', '3.0.9'
gem 'mysql2', '~> 0.2.6'
gem "settingslogic", "~> 2.0.6"
gem 'jpmobile', '0.1.6'
gem "kaminari"
gem "memcache-client"
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1 Answer

  1. Editorial Team

    This is almost always a result of request forgery protection. Make sure you have <%= csrf_meta_tag %> and a working rails.js or jquery_ujs.js JavaScript include inside the <head> tag of your layout.

    <%= javascript_include_tag :defaults %> will usually include these files automatically.

    If you’re still having trouble, you can always comment out the protect_from_forgery call (probably inside your application_controller.rb file) just to see if that is what is causing your problem. But I wouldn’t recommend turning off forgery protection permanently for security reasons.

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