I found this very helpful snippet in this thread on the devise google group initializers/some_initializer.rb: Warden::Strategies.add(:custom_strategy_name) do def valid? # code here to check whether to try and authenticate using this strategy; return true/false end def authenticate! # code here for doing authentication; # if successful, call success!(resource) # where resource is the whatever you’ve … Read more
In Ruby 2.4, there was a unification of integer types (i.e. Fixnum and Bignum are now the very same thing: Integer). This results on quite a few incompatibilities with existing gems which relied on the distinction of the classes. Older versions of ActiveSupport are among those which don’t like this unification and barf over it … Read more
It means your Rails installation is corrupted or incomplete. If you list your gems, chances are you won’t find railties $ gem list Run the command $ gem install rails again. It will download and install missing dependencies, including railties.
The serialization of objects in Rails has two steps: First, as_json is called to convert the object to a simplified Hash. Then, to_json is called on the as_json return value to get the final JSON string. You generally want to leave to_json alone so all you need to do is add your own as_json implementation … Read more
The initializer directory is a good place to collect all those little scraps. Since I tend to go a bit overboard with core extensions, I like to make a folder there called “extensions” and toss them all in there. So, try /config/initializers/string_extension.rb, or /config/initializers/extensions/string.rb, or something similar. Either way, you can just forget about them … Read more
While the scripts directory in Rails 4 is gone, the bin directory remains. You can get WEBrick working with an SSL certificate by editing the bin/rails script. Tested on Rails 4 and Ruby 2.1.1, installed with rbenv. Much of this is from this blog post and this Stack Overflow question. #!/usr/bin/env ruby require ‘rails/commands/server’ require … Read more
If you’re on Rails 5, and want to preserve config.api_only = true you could extend the middleware to add the sessions layer, adding this code after class Application < Rails::Application in config/application.rb config.middleware.use ActionDispatch::Cookies config.middleware.use ActionDispatch::Session::CookieStore, key: ‘_namespace_key’ This could come in handy when you want to have a rails api-only enabled app but have … Read more
In Rails 3.1 set_inheritance_column is deprecated, also you can just use nil as a name, like this: class Pancakes < ActiveRecord::Base self.inheritance_column = nil #… end
This is a Rails bug, as the subclass is violating the superclass API contract. The warning can be safely ignored by Rails users. (https://github.com/rack/rack/issues/485#issuecomment-11956708, emphasis added) Confirmation on the rails bug discussion: https://github.com/rails/rails/issues/7372#issuecomment-11981397
After some searching here is what I found: If you’re using Ruby to open connections to an external server over https, eg. the Facebook Graph API, you may run into the following error: OpenSSL::SSL::SSLError:SSL_connectreturned=1errno=0state=SSLv3readservercertificateB:certificateverifyfailed This error is due to Ruby not being able to find the certification authority certificates (CA Certs) used to verify the … Read more