I've built a model called "Subject" in my Rails 3.2 application. I used the scaffold command below.
rails g scaffold Subject subject singular:boolean gender:integer subject_masculine subject_feminine subject_neuter language:references --skip-stylesheets
The scaffold runs almost to the end, but then gives a mysterious error about the helper:
The name 'SubjectsHelper' is either already used in your application or reserved by Ruby on Rails. Please choose an alternative and run this generator again.
I've tried reversing the scaffold and rebuilding. In the end I just built the table and it seems to be working ok. There is no helpers/subjects_helper.rb file, but I don't expect to need a helper for this particular model.
I could not find subject among any reserved word list, but that in itself was a problem. Another SO post has been raised on this issue.
List of reserved words in rails *3*
Why am I getting this error, and can I just ignore it?
EDIT
My Gemfile as requested
source 'https://rubygems.org'
gem 'rails', '3.2.8'
gem 'thin'
gem 'sinatra'
gem 'pg'
gem 'simple_form'
gem "nested_form"
gem 'thinking-sphinx'
gem 'devise'
gem 'haml-rails'
gem 'ruby_parser'
gem 'html2haml'
gem 'best_in_place'
gem 'carrierwave'
gem 'fog'
gem 'seed_dump'
gem 'bluecloth'
gem 'redcarpet'
group :assets do
gem 'sass-rails', '~> 3.2.3'
gem 'coffee-rails', '~> 3.2.1'
gem 'prototype-rails'
gem 'uglifier', '>= 1.0.3'
gem 'twitter-bootstrap-rails'
gem 'therubyracer'
gem 'less-rails'
gem 'jquery-datatables-rails'
end
gem 'jquery-rails'
gem 'social_stream'
gem 'rails-footnotes', '>= 3.7.5.rc4', :group => :development
group :development do
gem 'rails-erd'
gem 'quiet_assets'
end
gem 'vestal_versions', :git => "git://github.com/futurechimp/vestal_versions.git"
gem 'diffy'
gem 'diffrent'
EDIT2
As per Philip's suggestion, I ran the Module.constants command from the Rails console. Amongst the output, there were two 'subject' values:
:SubjectsHelper
:Subject
I check several times there is no helper, so I decided to add one. I created the helpers/subjects_helper.rb file, with the following code:
module SubjectsHelper
end
Rails has now rebooted OK. I still don't understand what happened though.
As you correctly say, SubjectsHelper is already provided by Social Stream. See:
https://github.com/ging/social_stream/blob/master/base/app/helpers/subjects_helper.rb
Your solution is working because you are reopening the module, which is a valid action in Ruby.
I found it. I am using the Social Stream gem, which has a subject in the routes.
subject_lrdd /subjects/lrdd/:id(.:format)
It must be buried in the engine somewhere.
Related
I'm following SaaS from edX and I'm trying to run my rails server that I created using
rails s
and it keeps throwing a load error for
gem/ruby-1.9.3-p448/gems/ruby-debug-base19-0.11.25/lib/ruby_debug.so:
undefined symbol: ruby_current_thread
I'm not quite sure what I can do to fix this, or what other info would be required to help me solve this. I'm sorry for such a vague post but ruby on rails is rather new to me and I'm not sure why its throwing this
ive tried
gem install rails
and i get a permissions error
*Edit 1
Gemfile The debug19 is what i was told to put in per my instructions from edX 169.1
source 'https://rubygems.org'
gem 'rails', '3.2.14'
# Bundle edge Rails instead:
# gem 'rails', :git => 'git://github.com/rails/rails.git'
gem 'sqlite3'
# Gems used only for assets and not required
# in production environments by default.
group :assets do
gem 'sass-rails', '~> 3.2.3'
gem 'coffee-rails', '~> 3.2.1'
# See https://github.com/sstephenson/execjs#readme for more supported runtimes
# gem 'therubyracer', :platforms => :ruby
gem 'uglifier', '>= 1.0.3'
end
gem 'jquery-rails'
# To use ActiveModel has_secure_password
# gem 'bcrypt-ruby', '~> 3.0.0'
# To use Jbuilder templates for JSON
# gem 'jbuilder'
# Use unicorn as the app server
# gem 'unicorn'
# Deploy with Capistrano
# gem 'capistrano'
gem 'haml'
# To use debugger
# gem 'debugger'
group :development ,:test do
gem 'ruby-debug19' , :require => 'ruby-debug'
end
I don't know enough about your environment to give an exact answer, but you can try removing ruby-debug-base19 and ruby-debug from your Gemfile. You can also see if it's being installed by another gem by looking for references to them in your Gemfile.lock. If they are dependencies, remove the gems they depend on as well.
I want to use casual css or maybe scss for bootstrap/flatui generates. However, my generated bootstrap:install and flatuipro:install produces a .less files. I have many problems with .less such as window version of therubyracer wreck my rails page, so I don't want to use it.
Here is my Gemfile
source 'https://rubygems.org'
ruby '1.9.3'
#ruby-gemset=mybook_rails_4_0
gem 'rails'
group :development do
gem 'sqlite3'
end
group :production do
gem 'rails_12factor'
gem 'pg'
end
gem 'sass-rails'
gem 'coffee-rails'
gem 'uglifier'
gem 'haml'
gem 'haml-rails'
gem 'jquery-rails'
gem 'turbolinks'
gem 'jbuilder'
gem 'twitter-bootstrap-rails'
gem 'jquery-rails'
gem 'jquery-ui-rails'
gem 'designmodo-flatuipro-rails', '1.1.3.1'
gem 'formtastic'
gem 'protected_attributes'
gem 'angularjs-rails'
group :doc do
gem 'sdoc', require: false
end
Here is the command I used to generate bootstrap and flatuipro
rails g bootstrap:install
rails g flatuipro:install <flatui-directory>
Here is the files created in assets/stylesheet
flatuipro.less
bootstrap_and_override.css.less
Ok, I switched to rails g bootstrap:install static, which doesn't depend on less anymore... sad story, I'll have to rollback to basic css bootstraps
I am using the RMeetup gem to pull data from meetup.com. In development mode, I can feature this code in my controller, model or helper with no issues:
RMeetup::Client.api_key = "matt's key"
RMeetup::Client.fetch(:groups, :lat => #user.latitude, :lon => #user.longitude")
But when I try to deploy, Heroku tells me:
app[web.1]: NameError (uninitialized constant RMeetup::Client):
I'm a novice on Rails, and I don't know how to fix this problem. I've tried creating a new RMeetup model to maybe better house this information and fix the issue, but Rails tells me:
The name 'RMeetup' is either already used in your application or reserved by Ruby on Rails. Please choose an alternative and run this generator again.
The RMeetup gem is not located exclusively in the dev section of my gemfile. Complicating the matter, I don't actually save any of the data I receive from Meetup.com until a user fills out a form. So I don't have a natural place to build a model off the results from RMeetup fetch operations. I currently do it in a helper or controller.
So why does my local dev have no problem with "RMeetup::Client" but Heroku does, and how can I fix it?
As requested, here is also the Gemfile:
source 'https://rubygems.org'
ruby '2.0.0'
gem 'rails', '4.0.0'
gem 'bcrypt-ruby', '3.0.1'
gem 'pg', '0.15.1'
gem 'geocoder'
gem 'rmagick'
gem 'carrierwave'
gem 'rMeetup'
group :development, :test do
gem 'rspec-rails', '2.13.1'
gem 'puma'
end
group :test do
gem 'selenium-webdriver', '2.0.0'
gem 'capybara', '2.1.0'
end
gem 'sass-rails', '4.0.0'
gem 'uglifier'
gem 'coffee-rails', '4.0.0'
gem 'jquery-rails', '2.2.1'
gem 'turbolinks', '1.1.1'
gem 'jbuilder', '1.0.2'
group :doc do
gem 'sdoc', '0.3.20', require: false
end
group :production do
gem 'rails_12factor', '0.0.2'
end
Try
gem 'rMeetup', require: 'rmeetup'
in your Gemfile
Like the headline said, I am getting the aforementioned error when I try to run my rspec tests. The exact error is (word wrapped for readability):
/.rvm/gems/ruby-1.9.3-p374/gems/test-unit-2.4.8/lib/test/unit/testcase.rb:93:in
`<class:TestCase>': uninitialized constant
Test::Unit::TestCase::Assertions (NameError)
The main fix for this problem on the internet seems to be to remove the 'turn' gem, however I don't have the turn gem loaded. Here is my Gemfile:
source 'https://rubygems.org'
gem 'rails', '3.2.8'
# Bundle edge Rails instead:
# gem 'rails', :git => 'git://github.com/rails/rails.git'
gem 'devise'
gem 'therubyracer'
gem 'mysql2'
gem 'cucumber'
gem 'email_spec'
gem 'cancan'
gem 'rolify'
gem 'libv8'
gem 'simple_form'
group :test, :development do
gem 'rspec-rails'
gem 'factory_girl_rails'
gem 'test-unit'
end
group :test do
gem 'cucumber-rails', :require => false
gem 'capybara'
gem 'database_cleaner'
end
# Gems used only for assets and not required
# in production environments by default.
group :assets do
gem 'coffee-rails', '~> 3.2.1'
gem 'bootstrap-sass'
gem 'sass-rails', '~> 3.2.3'
gem 'uglifier', '>= 1.0.3'
end
gem 'jquery-rails'
The part of my code that the test seems to be choking on is when I have this line in my require 'rspec/rails' in my rspec_helper.rb file.
This project used to run rspecs flawlessly. It's only when I did a reinstall of my OS that it began to behave badly.
Any help is greatly appreciated
Since your are not generating a new app, remove the line
gem 'test-unit'
from your Gemfile and remove the gems turn and minitest, followed by a bundle update.
Answer: If you look in my Gemfile, you see a requirement in my group :test, :development for gem 'test-unit'. I commented that out and it works like a charm. Why and how this works I have no idea, if someone would mind explaining go right ahead.
I've been self-learning developing rails plugin.
One referenced tutorial I'm using is here.
Unfortunately, it seemed I got stuck since the first step when I run "rails generate plugin. It's returning an error saying "rspec [not found]".
c:\rails\test\rails generate plugin HelloWorld
create vendor/plugins/hello_world
create vendor/plugins/hello_world/MIT-LICENSE
create vendor/plugins/hello_world/README
create vendor/plugins/hello_world/Rakefile
create vendor/plugins/hello_world/init.rb
create vendor/plugins/hello_world/install.rb
create vendor/plugins/hello_world/uninstall.rb
create vendor/plugins/hello_world/lib
create vendor/plugins/hello_world/lib/hello_world.rb
error rspec [not found]
I tried to look for possible solutions myself. One that I tried was making an update of the project's bundler gem in hope that might come from a bug of plugin compatibility.
anyway, just in case it would help give you guys some clue on where it could go wrong, I also post my GemFile as follows.
source 'http://rubygems.org'
gem 'rails', '3.1.1'
gem 'annotate', ">=2.5.0"
gem 'sqlite3'
gem 'faker', '0.3.1'
gem 'gravatar_image_tag', '1.0.0.pre2'
gem 'will_paginate', '3.0.pre2'
gem 'jquery-rails'
gem 'pg', '0.14.0'
gem 'bundler', '1.2.0.rc.2'
# Gems used only for assets and not required
# in production environments by default.
group :assets do
gem 'coffee-rails', '~> 3.1.1'
gem 'uglifier', '>= 1.0.3'
end
group :development do
gem 'rspec-rails', '2.6.1'
end
group :test do
gem 'rspec-rails', '2.6.1'
gem 'webrat', '0.7.1'
gem 'factory_girl_rails', '1.0'
end
Any advice would be really appreciated!
I think it's trying to generate template rspec examples for the plugin, but the rspec directory isn't there. Did you run the rspec installer (rails g rspec:install) after adding rspec to your Gemfile?