The ENV hash-like object is plain Ruby, not part of Rails. From the fine ENV#[] manual: Retrieves the value for environment variable name as a String. Returns nil if the named variable does not exist. and the fine ENV#fetch manual: Retrieves the environment variable name. If the given name does not exist and neither default … Read more
If you are on rails 5 and you are using the default config/environments/development.rb file it will have this line of code in there. config.file_watcher = ActiveSupport::EventedFileUpdateChecker This requires the gem listen. This threw me for a bit as I was doing a rails 4 upgrades to a rails 5 edit: Forgot to mention that if … Read more
While it may seem the same in basic Rails applications, there actually is an important difference once you begin to use rails engines, plugins / gems or direct methods from ActiveRecord::Base. ActiveRecord::Base.include(MyFeatures) mixes in the features directly into ActiveRecord::Base and it is present there forever for all later uses of ActiveRecord::Base (it cannot be “unmixed”) … Read more
HTTP request methods will accept only the following keyword arguments params, headers, env, xhr, format According to the new API, you should use keyword arguments, params in this case: it ‘should show field’ do get :show, params: { id: field.id } expect(response.status).to eq(200) end
New Rails 5 command to generate binstubs: rails app:update:bin Allows me to run the solution as the error suggested: bin/rails db:environment:set RAILS_ENV=test Tip from @max comment: If you are using database_cleaner and this error keeps popping up then change your config to: DatabaseCleaner.clean_with( :truncation, except: %w(ar_internal_metadata) )
There are 5 options that could be considered as implementations of «Hash notation» (the last two are kinda hash-ish): With Ruby on Rails 5 you are able to do the following chaining using ActiveRecord::Relation#or method: Person.where(name: ‘Neil’).or(Person.where(age: 27)) Use where_values together with reduce. The unscoped method is necessary only for Rails 4.1+ to ensure default_scope … Read more
What’s happening? Looks like you’ve upgraded sprockets. The later version(s) of sprockets require what’s called a manifest.js file. You don’t have one. You need to create one, and add in a few “directives”. Why do I need to do this? In the old version of sprockets, big assumptions were made about what assets to bundle/concatenate** … Read more
The secret_token.rb file’s content includes a long randomized string which is used to verify the integrity of signed cookies (such as user sessions when people are signed into your web app). Documentation says: Use your existing secret_key_base from the secret_token.rb initializer to set the SECRET_KEY_BASE environment variable for whichever users run the Rails app in … Read more
The non-deprecated way is to use render :plain Rails Guide on Layouts and Rendering: 2.2.6 Rendering Text You can send plain text – with no markup at all – back to the browser by using the :plain option to render: render plain: “OK” Bonus Instead of render nothing: true (also removed), one should now use … Read more
Rather than listen to the ready event, you need to hook in to an event fired by Turbolinks for every page visit. Unfortunately, Turbolinks 5 (which is the version that appears in Rails 5) has been re-written, and does not use the same event names as in previous versions of Turbolinks, causing the answers mentioned … Read more