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uninformative error message when using 'markdown' helper without bluecloth gem
Reported by Josh Nichols | January 16th, 2010 @ 05:38 AM
If you happen to use the markdown helper, like so:
<%= markdown(post.body) %>
You get a pretty uninformative error message:
ActionView::Template::Error (uninitialized constant ActionView::Helpers::TextHelper::BlueCloth) on line #4 of /Users/technicalpickles/code/scratch/rails-3-blog/app/views/posts/_post.html.erb:
1: <h2><%= link_to post, post %></h2>
2:
3: <div id="<%= dom_id(post) %>" class="<%= dom_class(post) %>">
4: <div class="body"><%= markdown(post.body) %></div>
5:
6: <ul class="actions">
7: <li><%= 'Not' unless post.published? %> Published</li>
app/views/posts/_post.html.erb:4:in `_render_template_887285710_17704920_230336'
app/views/posts/show.html.erb:1:in `_render_template__976704918_17747910_0'
app/controllers/posts_controller.rb:18:in `show'
Fortunately, I'm familiar enough with markdown and bluecloth to know it needs the bluecloth gem, so I'd add this to Gemfile:
gem 'bluecloth'
This doesn't really fix the problem. I double checked that BlueCloth is defined by bluecloth.rb, and it is.
The only way I was able to get it to work was:
<% require 'bluecloth' %>
<%= markdown(post.body) %>
I would have guessed this would have happened by adding it to
Gemfile, or at latest, inside the markdown helper.
Comments and changes to this ticket
-
Josh Nichols January 16th, 2010 @ 05:38 AM
- Tag changed from “action_view, markdown, rails3” to “action_view, bugmash, markdown, rails3”
-
Ravil Bayramgalin January 16th, 2010 @ 08:24 AM
Specifying gems in Gemfile doesn't require them automatically. You always need to require them manually, i prefer to do it in initializer.
-
Josh Nichols January 16th, 2010 @ 04:38 PM
That matches the behavior I'm seeing, but contradicts bundler's documentation:
# Don't auto-require this gem. gem "rspec-rails", "1.2.9", :require_as => nil # Require something other than the default. gem "yajl-ruby", "0.6.7", :require_as => "yajl/json_gem"I did try specifically using @:require_as@, but that didn't work either.
-
Prem Sichanugrist (sikachu) February 11th, 2010 @ 03:46 PM
- State changed from “new” to “resolved”
Current
masterand3.0.0.betadoes automatically require those gems now. I think this can be closed :) -
Rolando Murillo June 29th, 2010 @ 08:00 AM
I've got the same problem. But I noted that I just need to restart the app to apply the changes within Gemfile.
-
Rolando Murillo June 29th, 2010 @ 08:00 AM
I've got the same problem. But I noted that I just need to restart the app to apply the changes within Gemfile.
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Josh Nichols
Prem Sichanugrist (sikachu)