Problem
When using a nested (or embedded) scaffold in ActiveScaffold with Rails 2.3.2 you have the error:
undefined method `render_component'
Solution
According to the issue here, in Rails 2.3 the render_component has been removed.
Install the render_component from:
script/plugin install git://github.com/lackac/render_component.git -r rails-edge
and restart your server, and it should be working.
Problem
You are trying to install spree from the git source, following the instructions from here, but there are errors like:
gem install activemerchant --version "= 1.4.1"
ERROR: While generating documentation for builder-2.1.2
... MESSAGE: Unhandled special: Special: type=17, text=""
... RDOC args: --ri --op /usr/lib/ruby/gems/1.8/doc/builder-2.1.2/ri --title Builder
-- Easy XML Building --main README --line-numbers
--quiet lib CHANGES Rakefile README doc/releases/builder-1.2.4.rdoc
doc/releases/builder-2.0.0.rdoc doc/releases/builder-2.1.1.
Solution
Make sure you have the following gems installed:
sudo gem install builder haml echoe
and then run:
sudo rake gems:install
Problem
Upgrading from a previous version of Rails to the latest 2.3.2, you get an error:
NameError: uninitialized constant ApplicationController
both in the web browser and in console.
Solution
Since the introduction of Rails 2.3 the application.rb file has been renamed to application_controller.rb.
So in order to solve the problem just rename your file application.rb to application_controller.rb.
Thanks to the post here
Problem
You want to use ActiveScaffold in Rails 2.2, in a model that you have created using the standard Rails scaffolding script.
Solution
script/plugin install git://github.com/activescaffold/active_scaffold.git -r rails-2.2
<%= javascript_include_tag :defaults %> <%= active_scaffold_includes %>
class SomethingsController < ApplicationController active_scaffold :something end
map.resources :somethings, :active_scaffold => true
You should now have an active scaffold for your model.
Problem
You are using the script/dbconsole utility in Rails (with sqlite), and you want to exit the application but the usual keystrokes/commands like quit, exit, Ctrl + C don’t work.
Solution
You have to use the following keyword, paying particular notice in the leading dot (.exit):
.exit
Problem
You want to work with sqlite3 in Mandriva (2009), but the standard installation doesn’t work, and you cannot use urpmi sqlite3.
Solution
You need to install the sqlite3 command line tools, like:
urpmi sqlite3-tools
Problem
When trying to use the acts_as_ferret plugin in a search page by using the find_by_contents method then the following error appears:
undefined method `find_by_contents'
Solution
It seems that the API of the plugin has changed, and the
find_by_contents
method should be replaced with the:
find_with_ferret
method
Problem
After a recent upgrade to a newer rails version the gem package manager seems to be broken. Everytime you try to use gem install gem_name, you get the following error:
ERROR: While executing gem ... (Gem::GemNotFoundException)
Deleting the cached files as suggested in other posts results in the error:
ERROR: While executing gem ... (ArgumentError)
Solution
As suggested here, you need to do:
gem install rubygems-update update_rubygems
which should be updating the gem version to the latest one, ie 1.3.0
Problem
When trying to use facebooker according to the Developing facebook platform applications with rails book, in the network_test step you are getting the following error:
FBML Error (line 5): illegal tag "body" under "fb:canvas"
Solution
It should be caused because you are using the facebooker gem instead of the plugin.
Install the plugin:
ruby script/plugin install git://github.com/mmangino/facebooker.git
Problem
Following from a previous post about email scheduling with runner and cron, it turns out that the runner default behaviour is to run in the development environment.
Solution
Although by reading the help for the script/runner, there is a suggestion to run it with the -e production
added to the end, it doesn’t seem to be working.
The solution to make it running in the production environment was to delete the first line (shebang) from step 3 on this post
#!/usr/bin/env /path_to_your_app/script/runner
and then use the following in the cron setup:
RAILS_ENV=production /path/to/your_ror_project/script/runner /path/to/your_ror_project/lib/email_scheduler.rb
Have a look on paragraph Alternative Usage here