Defect #20513
closed
Unloadable plugin convention breaks with Rails 4.2.3
0%
Description
The RM documentation and existing plugins use the Rails unloadable statement. This doesn't work as expected with Redmine 3.1. I have quite a bit of experience with Rails and building RM plugins so please do not disregard this without an investigation.
The following steps illustrate and reproduce the problem:
1) Create a fresh new Redmine:
git clone https://github.com/redmine/redmine.git cd redmine git checkout 3.1-stable nano config/database.yml bundle exec rake generate_secret_token bundle exec rake db:migrate
2) Create a fresh new plugin:
rails g redmine_plugin polls rails g redmine_plugin_model polls poll name:string bundle exec rake redmine:plugins:migrate
3) Add any code reference to this new unloadable Poll model. A quick ways is to add the following to plugins/polls/init.rb:
Rails.application.config.to_prepare do Poll.new end
4) At this point when Rails need to do code reloading it will fail with a message indicating it expected plugin/polls/app/models/poll.rb to define Poll. Try it by doing the following:
- Run the rails server and open any page served by it in your browser.
- Edit the any .rb file. An example is to add a newline to plugins/polls/app/models/poll.rb.
- Click any link in the page opened in the first step. You will get: Unable to autoload constant Poll, expected /home/pierre/redmine/plugins/polls/app/models/poll.rb to define it.
If you remove the unloadable in the plugin Poll model this problem disappears. Note that a very large amount of RM plugins currently use unloadable and causes this issue. My environment after performing these 4 steps:
Environment: Redmine version 3.1.0.stable Ruby version 2.1.3-p242 (2014-09-19) [x86_64-linux] Rails version 4.2.3 Environment production Database adapter PostgreSQL SCM: Subversion 1.8.8 Git 1.9.1 Filesystem Redmine plugins: polls 0.0.1
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