How can I "pipe" input from one guard to another? - guard

I'm trying out guard, and I would like to write handlebars templates using haml. Is there a way to "pipe" the output of guard-haml to guard-handlebars (i.e. have 2 guards operate on the same file)? Or perhaps, is there a guard plugin that can do both steps?

Cobbled together a solution using guard-shell. The fundamental problem is that guard-handlebars expects it's input files to end in ".handlebars" and there is no configuration option to change that. Rather than patch guard-handlebars, I simply used guard-shell to rename the files after guard-haml had processed them. Here is the resulting code in my Guardfile:
guard 'haml', :input => 'src/templates', :output => 'public/js/templates/html' do
watch %r{^.+(\.hbs\.haml)$}
end
guard :shell do
watch %r{^public/js/templates/html/.+(\.hbs\.html)$} do |m|
path = m[0]
new_path = path.gsub(/\.hbs\.html$/, '.handlebars')
`mv #{path} #{new_path}`
end
end
guard 'handlebars', :input => 'public/js/templates/html', :output => 'public/js/templates' do
watch %r{^.+(\.handlebars)$}
end

Related

Force Swagger UI To Load https path when hosted on Heroku

I have a rails 4 app with a Grape API and Swagger through the gem grape-swagger and grape-swagger-ui gems.
In dev everything works well, I load http://localhost:3000/api/swagger and the swagger header's text input along the top loads the expected url, http://localhost:3000/api/swagger_doc. This points properly to the file it seeks, swagger_doc.json.
I've pushed this app to heroku, which forces https connections. Unfortunately, when loading https://my-app.herokuapp.com/api/swagger the swagger header's text input along the top loads http://my-app.herokuapp.com/api/swagger_doc instead of loading https://my-app.herokuapp.com/api/swagger_doc (http vs https).
I've tried coming at this from the heroku side with things like:
routes.rb
unless Rails.env.development?
get "*path" => redirect("https://my-app.herokuapp.com%{path}"), :constraints => { :protocol => "http://" }
post "*path" => redirect("https://my-app.herokuapp.com%{path}"), :constraints => { :protocol => "http://" }
end
config/environments/production
config.force_ssl = false
config/environments/production
#config.force_ssl = false
And I've come at it with trying to set or manipulate the base_path attribute of add_swagger_documentation.
app/controllers/api/base.rb
base_path: "my-app.herokuapp.com",
app/controllers/api/base.rb
base_path: "http://my-app.herokuapp.com",
app/controllers/api/base.rb
base_path: = lambda do |request|
return "http://my-app.herokuapp.com"
end
app/controllers/api/base.rb
base_path: lambda { |request| "http://#{request.host}:#{request.port}" }
I recently clicked "view raw" on one of my resources and noticed that it was picking up my changes to base_path but that base_path isn't even used to populate the url in the text input in the swagger header. It seems to be generated from a js file. I'm unable to edit it and would happily accept a hack to do so as a solution. Here's that raw output:
https://gist.github.com/johnnygoodman/5fd246765dc5236fb8c4
The line of interest is:
"basePath":"http://localhost:3000/my-app.herokuapp.com"
Which would break the app if it was being populated and used, but it is not. I don't see an option in the grape-swagger gem that I can use to pass in this variable and change the path to https.
In conclusion:
I'd like the swagger text input box to load https://my-app.herokuapp.com/api/swagger_doc when I visit https://my-app.herokuapp.com/api/swagger.
Anyone know a hack to accomplish this on heroku?
I was able to work around this. I suggest:
Do not use + uninstall #gem 'grape-swagger-ui'
Use and install gem 'grape-swagger-rails' and follow the docs here: https://github.com/ruby-grape/grape-swagger-rails

rails-translate-routes gem: Is it possible to translate routes but keep (some) original ones?

I'm using rails-translate-routes gem to translate "front" routes only.
I'm using carrierwave to upload some files in my admin. Here's an uploader:
class CheatsheetUploader < CarrierWave::Uploader::Base
[...]
def store_dir
"uploads/#{model.class.to_s.underscore}/#{mounted_as}/#{model.id}"
end
[...]
end
As you see, the path is using the name of the model and the name of the field.
When I try to get the file:
link_to "my file", download.cheatsheet.url
The path is the default one:
http://localhost:3000/uploads/download/cheatsheet/1/a_really_nice_file.pdf
And Rails give me a nice Routing error:
No route matches [GET] "/uploads/download/cheatsheet/1/a_really_nice_file.pdf"
Any way to handle this?
You can pass keep_untranslated_routes: true in your call to ActionDispatch::Routing::Translator.translate_from_file.
For example:
ActionDispatch::Routing::Translator.translate_from_file(
'config/locales/routes.yml',
no_prefixes: true,
keep_untranslated_routes: true)

How can I use RSpec to test my model's interaction with external services

I have a method in a model that interacts with an external video encoding service (Zencoder). It uses the zencoder_rb gem. https://github.com/zencoder/zencoder-rb
class EncodingRequest
def check_encoding_status
response = Zencoder::Job.details(self.request_id)
if response.success?
# do something
else
# do something else
end
end
end
The Zencoder::Job#details method makes a call to the Zencoder web service to find out if the video encoding is complete.
The question is how can I hijack the Zencoder::Job#details method so when it is called by check_encoding_status it will return an object that I can craft. The plan is to make that object respond to #success? in whatever way makes sense for my test.
So here's how I'd like the spec to look
it "should mark the encoding as failed if there was an error in Zencoder" do
dummy_response = Zencoder::Response.new(:body => {:state => "finished"}, :code => 200)
# code that will force Zencoder::Job#details to return this dummy_response
#encoding = EncodingRequest.new(:source_asset => #final_large, :target_asset => #final_small)
#encoding.check_encoding_status
#encoding.status.should eql "success"
end
I am currently using rspec 2.5.
I read a bit about mocks and stubs, but I am not sure it's possible to use them in this scenario.
Your help is much appreciated.
Zencoder::Job.stub_chain(:details, :success).and_return(true)

Rails: how to pass a url parameter?

I need to pass the url for each post into user model so it can be shared to twitter. Right now I can pass attributes of the post, such as title and content, which is shared to twitter, but I can't seem to figure out how to pass the post url. Thanks in advance.
post.rb
after_commit :share_all
def share_all
if user.authentications.where(:provider => 'twitter').any?
user.twitter_share(self)
end
end
user.rb
def twitter_share(post)
twitter.update("#{post.title}, #{post.content}") #<--- this goes to twitter feed
end
I haven't tried or tested it but I guess you can do something like:
def share_all
if user.authentications.where(:provider => 'twitter').any?
user.twitter_share(title, content, post_url(self, :host => "your_host"))
end
end
Prior to that, in your model add this:
include ActionController::UrlWriter
This will make the url helper available in your model as well. You can read this to get more information about it.
Please try this as well (found it on this page again):
Rails.application.routes.url_helpers.post_url(self, :host => "your_host")
[EDIT]
I have just read your gist, what you should do is this instead:
## posts.rb
after_commit :share_all
def share_all
# note that I am using self inside the method not outside it.
url = Rails.application.routes.url_helpers.post_url(self, :host => "localhost:3000")
if user.authentications.where(:provider => 'twitter').any?
user.twitter_share(url)
end
end
Or:
include ActionController::UrlWriter #very important if you use post_url(..) directly
after_commit :share_all
def share_all
# if you use the url helper directly you need to include ActionController::UrlWriter
url = post_url(self, :host => "localhost:3000")
if user.authentications.where(:provider => 'twitter').any?
user.twitter_share(url)
end
end
It is very important that you get that url inside the share_all method and not outside it, because self has not the same value whether it's inside or outside. When it's inside the method, self references the instance of Post on which the share_all method is called. When it's outside it's the class Post itself.
I have tested those two variants and they work just well :).

How do I write a Rails 3.1 engine controller test in rspec?

I have written a Rails 3.1 engine with the namespace Posts. Hence, my controllers are found in app/controllers/posts/, my models in app/models/posts, etc. I can test the models just fine. The spec for one model looks like...
module Posts
describe Post do
describe 'Associations' do
it ...
end
... and everything works fine.
However, the specs for the controllers do not work. The Rails engine is mounted at /posts, yet the controller is Posts::PostController. Thus, the tests look for the controller route to be posts/posts.
describe "GET index" do
it "assigns all posts as #posts" do
Posts::Post.stub(:all) { [mock_post] }
get :index
assigns(:posts).should eq([mock_post])
end
end
which yields...
1) Posts::PostsController GET index assigns all posts as #posts
Failure/Error: get :index
ActionController::RoutingError:
No route matches {:controller=>"posts/posts"}
# ./spec/controllers/posts/posts_controller_spec.rb:16
I've tried all sorts of tricks in the test app's routes file... :namespace, etc, to no avail.
How do I make this work? It seems like it won't, since the engine puts the controller at /posts, yet the namespacing puts the controller at /posts/posts for the purpose of testing.
I'm assuming you're testing your engine with a dummy rails app, like the one that would be generated by enginex.
Your engine should be mounted in the dummy app:
In spec/dummy/config/routes.rb:
Dummy::Application.routes.draw do
mount Posts::Engine => '/posts-prefix'
end
My second assumption is that your engine is isolated:
In lib/posts.rb:
module Posts
class Engine < Rails::Engine
isolate_namespace Posts
end
end
I don't know if these two assumptions are really required, but that is how my own engine is structured.
The workaround is quite simple, instead of this
get :show, :id => 1
use this
get :show, {:id => 1, :use_route => :posts}
The :posts symbol should be the name of your engine and NOT the path where it is mounted.
This works because the get method parameters are passed straight to ActionDispatch::Routing::RouteSet::Generator#initialize (defined here), which in turn uses #named_route to get the correct route from Rack::Mount::RouteSet#generate (see here and here).
Plunging into the rails internals is fun, but quite time consuming, I would not do this every day ;-) .
HTH
I worked around this issue by overriding the get, post, put, and delete methods that are provided, making it so they always pass use_route as a parameter.
I used Benoit's answer as a basis for this. Thanks buddy!
module ControllerHacks
def get(action, parameters = nil, session = nil, flash = nil)
process_action(action, parameters, session, flash, "GET")
end
# Executes a request simulating POST HTTP method and set/volley the response
def post(action, parameters = nil, session = nil, flash = nil)
process_action(action, parameters, session, flash, "POST")
end
# Executes a request simulating PUT HTTP method and set/volley the response
def put(action, parameters = nil, session = nil, flash = nil)
process_action(action, parameters, session, flash, "PUT")
end
# Executes a request simulating DELETE HTTP method and set/volley the response
def delete(action, parameters = nil, session = nil, flash = nil)
process_action(action, parameters, session, flash, "DELETE")
end
private
def process_action(action, parameters = nil, session = nil, flash = nil, method = "GET")
parameters ||= {}
process(action, parameters.merge!(:use_route => :my_engine), session, flash, method)
end
end
RSpec.configure do |c|
c.include ControllerHacks, :type => :controller
end
Use the rspec-rails routes directive:
describe MyEngine::WidgetsController do
routes { MyEngine::Engine.routes }
# Specs can use the engine's routes & named URL helpers
# without any other special code.
end
– RSpec Rails 2.14 official docs.
Based on this answer I chose the following solution:
#spec/spec_helper.rb
RSpec.configure do |config|
# other code
config.before(:each) { #routes = UserManager::Engine.routes }
end
The additional benefit is, that you don't need to have the before(:each) block in every controller-spec.
Solution for a problem when you don't have or cannot use isolate_namespace:
module Posts
class Engine < Rails::Engine
end
end
In controller specs, to fix routes:
get :show, {:id => 1, :use_route => :posts_engine}
Rails adds _engine to your app routes if you don't use isolate_namespace.
I'm developing a gem for my company that provides an API for the applications we're running. We're using Rails 3.0.9 still, with latest Rspec-Rails (2.10.1). I was having a similar issue where I had defined routes like so in my Rails engine gem.
match '/companyname/api_name' => 'CompanyName/ApiName/ControllerName#apimethod'
I was getting an error like
ActionController::RoutingError:
No route matches {:controller=>"company_name/api_name/controller_name", :action=>"apimethod"}
It turns out I just needed to redefine my route in underscore case so that RSpec could match it.
match '/companyname/api_name' => 'company_name/api_name/controller_name#apimethod'
I guess Rspec controller tests use a reverse lookup based on underscore case, whereas Rails will setup and interpret the route if you define it in camelcase or underscore case.
It was already mentioned about adding routes { MyEngine::Engine.routes }, although it's possible to specify this for all controller tests:
# spec/support/test_helpers/controller_routes.rb
module TestHelpers
module ControllerRoutes
extend ActiveSupport::Concern
included do
routes { MyEngine::Engine.routes }
end
end
end
and use in rails_helper.rb:
RSpec.configure do |config|
config.include TestHelpers::ControllerRoutes, type: :controller
end