I am trying to follow RESTful Rails Development from O'Reilly by Silvia Puglisi.
I have created an app (wikicat), database (MySQL), models (category and link), controllers (CategoryController show) and routes. I have followed everything that the book said (taking in to consideration the published errata) and I am going round and round in circles trying to fix an ActiveRecord::ConnectionNotEstablished error.
I am running on Linux Mint 17.2 with:
Rails version 4.1.4 mysql version 14.14 Distribution 5.5.46
I have started mysql server. My Gemfile has been bundled and is shown below:
source 'https://rubygems.org'
# Bundle edge Rails instead: gem 'rails', github: 'rails/rails' gem 'rails', '4.1.4' gem 'rails-api'
# Use mysql as the database for Active Record gem 'mysql2', '~> 0.3.18'
#Serialiser for JSON gem 'active_model_serializers' group :doc do #bundle exec rake doc:rails generates the API under doc/api gem 'sdoc', '~>0.4.0' end group :development do #Spring speeds up development by keeping your application #running in the background. Read more: #GitHub - rails/spring: Rails application preloader gem 'spring' end
There isn't an application trace, but there is a framework trace which I have pasted below:
activerecord (4.1.4) lib/active_record/connection_adapters/abstract/connection_pool.rb:541:in `retrieve_connection' activerecord (4.1.4) lib/active_record/connection_handling.rb:113:in `retrieve_connection' activerecord (4.1.4) lib/active_record/connection_handling.rb:87:in `connection' activerecord (4.1.4) lib/active_record/migration.rb:388:in `check_pending!' activerecord (4.1.4) lib/active_record/migration.rb:377:in `call' actionpack (4.1.4) lib/action_dispatch/middleware/callbacks.rb:29:in `block in call' activesupport (4.1.4) lib/active_support/callbacks.rb:82:in `run_callbacks' actionpack (4.1.4) lib/action_dispatch/middleware/callbacks.rb:27:in `call' actionpack (4.1.4) lib/action_dispatch/middleware/reloader.rb:73:in `call' actionpack (4.1.4) lib/action_dispatch/middleware/remote_ip.rb:76:in `call' actionpack (4.1.4) lib/action_dispatch/middleware/debug_exceptions.rb:17:in `call' actionpack (4.1.4) lib/action_dispatch/middleware/show_exceptions.rb:30:in `call' railties (4.1.4) lib/rails/rack/logger.rb:38:in `call_app' railties (4.1.4) lib/rails/rack/logger.rb:20:in `block in call' activesupport (4.1.4) lib/active_support/tagged_logging.rb:68:in `block in tagged' activesupport (4.1.4) lib/active_support/tagged_logging.rb:26:in `tagged' activesupport (4.1.4) lib/active_support/tagged_logging.rb:68:in `tagged' railties (4.1.4) lib/rails/rack/logger.rb:20:in `call' actionpack (4.1.4) lib/action_dispatch/middleware/request_id.rb:21:in `call' rack (1.5.5) lib/rack/runtime.rb:17:in `call' activesupport (4.1.4) lib/active_support/cache/strategy/local_cache_middleware.rb:26:in `call' rack (1.5.5) lib/rack/lock.rb:17:in `call' actionpack (4.1.4) lib/action_dispatch/middleware/static.rb:64:in `call' railties (4.1.4) lib/rails/engine.rb:514:in `call' railties (4.1.4) lib/rails/application.rb:144:in `call' rack (1.5.5) lib/rack/lock.rb:17:in `call' rack (1.5.5) lib/rack/content_length.rb:14:in `call' rack (1.5.5) lib/rack/handler/webrick.rb:60:in `service' /usr/lib/ruby/1.9.1/webrick/httpserver.rb:138:in `service' /usr/lib/ruby/1.9.1/webrick/httpserver.rb:94:in `run' /usr/lib/ruby/1.9.1/webrick/server.rb:191:in `block in start_thread'
Is there anything in there telling me why I can't get a connection? Thank you for your patience with my newbie query.
