uninitialized constant ApplicationController::Bitly - ruby-on-rails

I have the bitly gem installed and am setting it up in my ApplicationController to use the API for version 3, but it is throwing the above error. Here is the beginning of my application_controller.rb
class ApplicationController < ActionController::Base
protect_from_forgery
Bitly.use_api_version_3
before_filter { #cart = find_or_create_cart_from_session }
before_filter { #bitly = Bitly.new('myusername', 'XXXXXX_API_KEY_XXXXX') }

You say you have the Gem installed, but do you have it included in your Gemfile? If the Gem isn't in your Gemfile your application won't find it, which will lead to uninitialized constant errors.

Related

alias_method': undefined method `current_user'

Hi i tried to implement forest_admin gem in rails 5 application
When i generate install with this command
rails g forest_liana:install <ENVIRONMENT SECRET>
The logs are alias_method': undefined method current_user' for classApplicationController' (NameError)
My aplication Controller
class ApplicationController < ActionController::Base
skip_before_action :verify_authenticity_token
before_action :session_expirada, unless: :devise_controller?
before_action :set_attr_to_current_user, unless: :devise_controller?
layout :layout_by_resource
alias_method :devise_current_user, :current_user
include RedirectFromEmail
# Pundi Authorization filtros
include Pundit
#after_action :verify_authorized, unless: :devise_controller? , #except: :index
#to catch message error Pundit
rescue_from Pundit::NotAuthorizedError, with: :user_not_authorized
end
What happend?
You are trying to alias the method ":devise_current_user" to ":current_user". IN your controller current_user is not defined. If you define current_user in your controller(see below) then you will not get this error.
def current_user
#logic to get a handle on current user goes here
end
Remove alias and just use regular devise current_user which is included by default

Authority gem gives 'undefined method'

I'm getting undefined method 'authorize_actions_for' in the controller when using rails-api with the Authority gem. Any ideas what I need to include? Here's my code:
Gemfile:
...
gem 'authority', '~> 2.9.0'
gem 'rails-api', '~> 0.1.0'
...
app/authorizers/session_authorizer.rb:
class SessionAuthorizer < ApplicationAuthorizer
def deletable_by?(user)
user.sessions.include?(resource)
end
end
app/controllers/v1/sessions_controller.rb:
class V1::SessionsController < ApplicationController
authorize_actions_for Session
...
end
Include Authority::Controller
As we discussed on Github, authorize_actions_for is defined in Authority::Controller.
In a normal Rails app, that module gets included into ActionController::Base by Authority's railtie.rb. Apparently the railtie isn't being required when using rails-api (maybe the Rails constant isn't defined?).
You can include the appropriate module yourself, though:
class ApplicationController < ActionController::Base
include Authority::Controller
end

Rails: Undefined method `flash' for ActionDispatch::Request

I'm trying to write an Ember application in Rails 4, and have decided to go with rails-api for the api controllers, while keeping the application controller intact for a few pages that aren't part of the single-page app. To put it in more concrete terms, here are my controllers:
app/controllers/application_controller.rb:
class ApplicationController < ActionController::Base
protect_from_forgery
end
app/controllers/sample_controller.rb:
class SampleController < ApplicationController
# my methods
end
app/controllers/api/v1/api_controller.rb:
class Api::V1::ApiController < ActionController::Api
include ActionController::MimeResponds
end
app/controllers/api/v1/sample_controller.rb:
module Api::V1
class SampleController < ApiController
respond_to :json
# my methods
end
end
My application.html.slim contains the following line:
== render partial: "flash_msgs" unless flash.blank?
The inclusion of which results in the following error:
undefined method 'flash' for #< ActionDispatch::Request:0x007f99f41d8720 >
Per discussion on this thread, it seems that the culprit could be rails-api, but I'm not entirely convinced given the inheritance I've set up. Any suggestions?
Not sure but maybe you need to include the ActionDispatch::Flash middleware to support the flash. Using:
config.middleware.use ActionDispatch::Flash
The docs says:
ActionDispatch::Flash: Supports the flash mechanism in
ActionController.
I hope it helps
See: https://github.com/plataformatec/devise/issues/2775
Inside devise.rb change
config.navigational_formats = ['*/*', :html]
to:
config.navigational_formats = [:json]
or just [ ]
If you're like me and creating an API on top of an existing application, you can add this to your config/application.rb file:
config.api_only = false
well, in my case my API mode rails app I had this code in one of my controller:
protect_from_forgery with: :null_session, if: Proc.new { |c| c.request.format == 'application/json' }
due to which handle_unverified_request was getting called that has this small piece of code request.flash = nil which was raising Undefined method 'flash' for ActionDispatch::Request for me.
Dealt with it by replacing protect_from_forgery with skip_before_action :verify_authenticity_token

Devise throwing exception when attempting to add parameter to sanitizer

I am following the instructions here in order to add two parameters to my sign up / registration form in a Ruby on Rails + devise based application: http://devise.plataformatec.com.br/#getting-started/strong-parameters
My controller is straight forward:
class ApplicationController < ActionController::Base
protect_from_forgery with: :exception
before_filter :configure_permitted_parameters, if: :devise_controller?
before_filter :authenticate_user!
protected
def configure_permitted_parameters
devise_parameter_sanitizer.for(:sign_up) << :username
end
end
The error I'm getting is the following:
NoMethodError in Devise::SessionsController#new
undefined method `<<' for {}:ActionController::Parameters
Am I using the wrong version of Devise or something? I have gem 'devise', :git => 'https://github.com/plataformatec/devise', :branch => 'v3.0' specified in my Gemfile, nothing else is out of the ordinary.
This feature requires Devise 3.1.0.rc according to an issue opened on the Devise repo.

Uninitialized constant of gem

I've installed JWT gem - https://github.com/progrium/ruby-jwt
There is gem 'jwt' in Gemfile, of course. Inspite on that, I have the error of
uninitialized constant HomeController::JWT
in HomeController
class HomeController < ApplicationController
def method1
#jwt_token = JWT.encode({.... })
end
end
I believe you need a require 'jwt'.
HTH

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