Defect #26636
closed
Rails 5: "Page not found" error when accessing a page of a plugin in production mode
0%
Description
Steps to reproduce:
1. Create a test plugin.
bin/rails g redmine_plugin foo bin/rails g redmine_plugin_controller foo foo index echo 'get "foo", :to => "foo#index"' >> plugins/foo/config/routes.rb
2. Run Redmine in production mode
bin/rails s -e production
3. Open http://localhost/foo and you will see "Page not found" error. No problem in development mode.
production.log:
Related issues
Updated by Akiko Takano over 7 years ago
Hi, I'm triyng to port my plugins, from Redmine 3.4 to Redmine trunk (ver4.0, based on Rails5).
I managed to port my plugin to support Rails5, and it seems works fine under development / test environment.
But under production mode, I saw the same error.
When I try to access one of plugin's controller, error happened and the message such as "uninitialized constant xxxxxxxController” was recorded.
I personally think, it seems required files under plugin's directory are not loaded in production mode.
And also think this is because autoload definition is disabled for production mode in Rails 5 by default.
Here is my workaround and I am glad if they were helpful.
Workaround 1: Enabled autoload in production mode¶
$ hg diff config/application.rb
diff -r 95623038cf82 config/application.rb
--- a/config/application.rb Mon Jul 24 17:14:53 2017 +0000
+++ b/config/application.rb Fri Aug 04 23:35:24 2017 +0900
@@ -12,6 +12,7 @@
# Custom directories with classes and modules you want to be autoloadable.
config.autoload_paths += %W(#{config.root}/lib)
+ config.enable_dependency_loading = true
# Only load the plugins named here, in the order given (default is alphabetical).
# :all can be used as a placeholder for all plugins not explicitly named.
Workaround 2: Add plugin's directory to eager_load_paths at lib/redmine/plugin.rb¶
When application boots in production then the application loads all constants found in all directories listed in eager_load_paths.
$ hg diff lib/redmine/plugin.rb
diff -r 95623038cf82 lib/redmine/plugin.rb
--- a/lib/redmine/plugin.rb Mon Jul 24 17:14:53 2017 +0000
+++ b/lib/redmine/plugin.rb Fri Aug 04 23:38:31 2017 +0900
@@ -93,6 +93,7 @@
# Adds the app/{controllers,helpers,models} directories of the plugin to the autoload path
Dir.glob File.expand_path(File.join(p.directory, 'app', '{controllers,helpers,models}')) do |dir|
ActiveSupport::Dependencies.autoload_paths += [dir]
+ Rails.application.config.eager_load_paths += [dir] if Rails.env == 'production'
end
# Defines plugin setting if present
I personally prefer the second way.
Updated by Jean-Philippe Lang over 6 years ago
- Status changed from New to Closed
- Assignee set to Jean-Philippe Lang
- Resolution set to Fixed
Second fix committed, thanks.
Updated by Marius BĂLTEANU over 6 years ago
- Related to Feature #23630: Migrate to Rails 5.2 added
Updated by Enziin System over 6 years ago
The second way doesn't work for me.
Please use both ways.
Updated by Go MAEDA over 6 years ago
Enziin System wrote:
The second way doesn't work for me.
Could you describe more detail?
Updated by Marius BĂLTEANU about 6 years ago
- Target version deleted (
4.0.0)
I'm removing this ticket from the Changelog because it was a problem generated by the migration to Rails 5 (we did the same thing with the others tickets).
Updated by Go MAEDA almost 6 years ago
- Related to Patch #30725: Plugin eager_load should depend on environment setting instead of name added