| rails rspec controller test with has_one relationship Posted: 03 Jul 2016 08:09 AM PDT Product :has_one company, company :belongs_to product. The following code works for my other has_one association, but for some reason it doesn't work here. In dev ENV the create action works fine. All the other controller tests (show,update,destroy...) and model tests pass. What can go wrong? before(:each) do login_user end ........ describe "POST create" do let!(:profile) { create(:profile, user: @user) } let!(:product) { create(:product, :product_with_nested_attrs, owner: @user) } before(:each) do if product.company.present? product.company.destroy end request.env["HTTP_REFERER"] = new_product_company_path(product) end context "with vaild attributes" do subject(:create_action) { post :create, product_id: product.id, company: attributes_for(:company, product: product) } it "saves the new company in the db" do expect{ create_action }.to change{ Company.count }.by(1) end it "redirects to back and shows the flash" do create_action expect(response).to redirect_to product_company_path(product) expect(controller).to set_flash[:notice].to("Company successfully created!") end end end
|
| Is render on controller the same than in views? how to call "view" render from controller? Posted: 03 Jul 2016 08:08 AM PDT I've a very simple js logic to implement when doing ajax request, so I've a respond_to block and I would like to specify the reply for js inline, so I tried to do this: respond_to do |format| format.html format.js { render js: "$('ul#slides').append('#{j(render @slide)}');" } end
The problem is that this is throwing a doublicate render error, (as I have render inside a render), but, how this work if I put that piece of code in a view? how I can call the "view" render on a controller? |
| Jquery file upload taking time before sending the ajax request Posted: 03 Jul 2016 07:23 AM PDT I am following this tutorial to direct upload to AWS S3 using jquery file uploader and the upload works fine, but the issue is when I select a file or image to be uploaded and watch the console (firefox), it tooks some "long" seconds before the ajax request start processing.. I thought maybe something is wrong with my Rails app, so I created a simple html file and used the same code and I was surprised that the request runs (correctly) right after I select the file. The last assumption was that something is wrong with other js libraries maybe, so I created a brand new Rails project and used only the code for the upload, but the same issue, the ajax request take some long seconds before start runing! Rails v 4.2.6 any help ? |
| Rails: Rendering Sanitized Markdown Posted: 03 Jul 2016 07:27 AM PDT We are using Redcarpet to render views on our Rails 4.2.6 application. To assure safe inputs we use sanitizing: def markdown(text) if text.present? sanitize(markdown_renderer.render(text)) end end def markdown_renderer Redcarpet::Markdown.new(Redcarpet::Render::HTML, no_intra_emphasis: true, fenced_code_blocks: true, autolink: true, tables: true, underline: true, highlight: true, with_toc_data: true) end def sanitize(input) if input.present? ActionView::Base.new.sanitize(input.html_safe) end end
And it worked great, but then we got a request to put in tables. I realized that HTML-table tags are not allowed in the default sanitize implementation. Our first solution was to add config.action_view.sanitized_allowed_tags = %w( table tr th td )
(if you try to do += or << you get a nil error, no default values?) But this disallowed all the default tags, so now every tag needs to be explicitly added. Is there a better way to solve this? Either using some different technique for sanitizing or something else. |
| Ruby: Ignore last line of a file and add a row to an array Posted: 03 Jul 2016 07:43 AM PDT So, I have the following: twodarray = [] File.open("SG_hum50_LODG.gro", "r") do |f| f.each_line do |line| textarray = line.split() textarray[0],textarray[1],textarray[2] = textarray[1],textarray[0],textarray[2].to_i textarray[1] = textarray[1].gsub(/:/, '').to_i twodarray << textarray end end
Which works pretty well. The problem I am having is I need to ignore the last line of the text file, and I need to add ["Sensor", "Timestamp", "Sensor Value"],
As the first row in the array. |
| can't use form variables in the controller to save the select data Posted: 03 Jul 2016 06:58 AM PDT <tr> <th><%=f.label(:id, "Choose car")%></th> <td><%= f.select(:id, @cars_all.map{|c| [c.name, c.id]}) %></td> </tr> <tr> <th><%=f.label(":list_id", "Choose List")%></th> <td><%= f.select(:list_id, @lists.map{|s| [s.name, s.id]}) %></td> </tr>
i want to get the value of these two select values to use them in the contorller to add them in the database in a joint table, @car_id = params[:id]
doesn't work and doesn't get the data, and is there is away to echo these values |
| Ruby on Rails: How to store data in two tables following the creation of a record in one? Posted: 03 Jul 2016 06:57 AM PDT I have two database tables Users and Accounts, when a new user is created their primary email address that they will use to login is stored in the Users table. What I want to do is also store a copy of their primary email address in the Accounts table, as this table will be used to store the email addresses of that user. I have tried the following in my users_controller: class UsersController < ApplicationController def index @users = User.all end def show @user = User.find(params[:id]) end def new @user = User.new end def edit @user = User.find(params[:id]) end def create @user = User.new(user_params) if @user.save session[:user_id] = @user.id @account = Account.new(email: params[:primaryemailaddress], user_id: session[:user_id]) redirect_to @user else render 'new' end end def update @user = User.find(params[:id]) if @user.update(user_params) redirect_to @user else render 'edit' end end def destroy @user = User.find(params[:id]) @user.destroy redirect_to users_path end private def user_params params.require(:user).permit(:title, :firstname, :surname, :housenumber, :street, :city, :postcode, :organisation, :primaryemailaddress, :password) end end
And the following in my User model: class User < ActiveRecord::Base has_many :accounts accepts_nested_attributes_for :accounts validates :primaryemailaddress, presence: true has_secure_password end
So, as you can see in the create method in the users_controller, I am trying to create a new record in the Accounts table using the primary email address the user has entered on the registration form. Can someone please tell me where I am going wrong? |
| Select option does not work in rails using materialize Posted: 03 Jul 2016 06:47 AM PDT I have a select option in my form_for in rails. It was working before I installed materialize but after installing it, it doesnt work anymore. I am a RnR beginner. Please see my code below: Game model class Game < ActiveRecord::Base GENRES = ['Action', 'Adventure', 'RPG', 'Simulation', 'Strategy', 'Sports', 'Others'] PLATFORMS = ['3DS', 'WII U', 'NX', 'PC', 'Playstation', 'XBOX', 'PS Vita', 'Mobile', 'Others'] end
new.html.erb <h1> Add Game </h1> <%= form_for :game, url: games_path do |f| %> Title: <%= f.text_field :title %> <br /> Genre: <%= f.collection_select :genre, Game::GENRES, :to_s, :to_s, :include_blank => true %> <br /> Platform: <%= f.collection_select :platform, Game::PLATFORMS, :to_s, :to_s, :include_blank => true %> <br /> Release Date: <%= f.date_field :release_date %> <br /> Progress: <%= f.number_field :progress %> <br /> Rating: <%= f.number_field :rating %> <br /> <%= f.submit 'Add Game', class: 'add_game_button' %> <%end%>
|
| Rspec and factory girl: Factory already registered: my_model Posted: 03 Jul 2016 05:59 AM PDT I have this: #spec/spec_helper.rb require "support/factory_girl" RSpec.configure do |config| # .....
And #spec/support/factory_girl.rb require "factory_girl_rails" RSpec.configure do |config| config.include FactoryGirl::Syntax::Methods end
And # spec/rails_helper.rb # This file is copied to spec/ when you run 'rails generate rspec:install' ENV['RAILS_ENV'] ||= 'test' require File.expand_path('../../config/environment', __FILE__) # Prevent database truncation if the environment is production abort("The Rails environment is running in production mode!") if Rails.env.production? require 'spec_helper' require 'rspec/rails' # .......
And my model spec: require "spec_helper" in spec/models/my_model_spec.rb RSpec.describe MyModel, type: :model do context "fdsfdsfds" do before do @my_model = create(:my_model) end subject{ @my_model } it { should respond_to(:aa) } it { should respond_to(:bb) } end end
The error I have: /home/me/.gem/ruby/2.3.1/gems/factory_girl-4.7.0/lib/factory_girl/decorator.rb:10:in `method_missing': Factory already registered: my_model (FactoryGirl::DuplicateDefinitionError)
The gems are: group :development, :test do gem "rspec-rails", "~> 3.4" gem "factory_girl_rails" end
I run it as just "rspec" |
| rails association proxy error Posted: 03 Jul 2016 05:52 AM PDT This error keeps displaying So i have the association done actually has_many, belongs_to i have no idea why is this error showing up. Restoraan.rb class Restoraan < ActiveRecord::Base has_many :kichens has_many :atmospheres has_many :resto_imgs accepts_nested_attributes_for :resto_imgs, :kichens, :atmospheres #serialize :resto_type, :restoKitchen end
Kichen.rb class Kichen < ActiveRecord::Base belongs_to :restoraan, dependent: :destroy end
When i do Restoraan.kichen in rails c i get a error NoMethodError: undefined method `kichen' for #< Class:0x005648039a9038> |
| How do I upgrade my rails routes with member exceptions AND collections? Posted: 03 Jul 2016 05:06 AM PDT I want to do some routing and can't figure it out. (I'm migrating from 2.3.9 to 4.2.6!) Limited Members, Some Collection In 2.3 With map.resources :contact, :only => :index, :collection => { :send_mail => :post }
I got... send_mail_contact POST /contact/send_mail(.:format) {:action=>"send_mail", :controller=>"contact"} index_contact GET /contact/index(.:format) {:action=>"index", :controller=>"contact"} contact_index GET /contact(.:format) {:action=>"index", :controller=>"contact"}
So I've tried resources :contact, only: [:index] do collection do post 'send_mail' # :index => :get, # :send_mail => :post } end end
which gives... send_mail_contact_index POST /contact/send_mail(.:format) contact#send_mail contact_index GET /contact(.:format) contact#index
?? How do I get rid of the _index for send_mail? Then I tried with_options(only: [:index]) do |opt| opt.resources :contact do collection do post 'send_mail' end end end
Which gives the same! send_mail_contact_index POST /contact/send_mail(.:format) contact#send_mail contact_index GET /contact(.:format) contact#index
=============================== No Members, Collection Only Also I have a collection of pages (non-static)... In 2.3 With map.resources :info, :except => :all, :collection => { :about => :get, :usage => :get, :privacy => :get, :kudos => :get }
I got... privacy_info GET /info/privacy(.:format) {:controller=>"info", :action=>"privacy"} usage_info GET /info/usage(.:format) {:controller=>"info", :action=>"usage"} kudos_info GET /info/kudos(.:format) {:controller=>"info", :action=>"kudos"} about_info GET /info/about(.:format) {:controller=>"info", :action=>"about"}
So I tried resources :info, only: [] do collection do get 'about' get 'usage' get 'privacy' get 'kudos' end end
which gives... about_info_index GET /info/about(.:format) info#about usage_info_index GET /info/usage(.:format) info#usage privacy_info_index GET /info/privacy(.:format) info#privacy kudos_info_index GET /info/kudos(.:format) info#kudos
Again I have the _index! about_info_index_path instead of about_info_path. Lots of answers about using except and only, but Not with collections. Is there a bug somewhere, undocumented feature, or am I really missing something? Thank you, Dirk |
| Could not find sprockets-3.6.2 in any of the sources (Bundler::GemNotFound) when doing docker-compose up Posted: 03 Jul 2016 06:56 AM PDT I am new to docker. I have an existing rails app and I want to dockerize it. Please help me, how can I solve this. I ran into this problem. I have posted the error when I run this. redis_1 | 1:M 03 Jul 11:47:39.087 * The server is now ready to accept connections on port 6379 sidekiq_1 | /usr/local/bundle/gems/bundler-1.10.6/lib/bundler/spec_set.rb:92:in `block in materialize': Could not find sprockets-3.6.2 in any of the sources (Bundler::GemNotFound) sidekiq_1 | from /usr/local/bundle/gems/bundler-1.10.6/lib/bundler/spec_set.rb:85:in `map!' sidekiq_1 | from /usr/local/bundle/gems/bundler-1.10.6/lib/bundler/spec_set.rb:85:in `materialize' sidekiq_1 | from /usr/local/bundle/gems/bundler-1.10.6/lib/bundler/definition.rb:140:in `specs' sidekiq_1 | from /usr/local/bundle/gems/bundler-1.10.6/lib/bundler/definition.rb:185:in `specs_for' sidekiq_1 | from /usr/local/bundle/gems/bundler-1.10.6/lib/bundler/definition.rb:174:in `requested_specs' sidekiq_1 | from /usr/local/bundle/gems/bundler-1.10.6/lib/bundler/environment.rb:18:in `requested_specs' sidekiq_1 | from /usr/local/bundle/gems/bundler-1.10.6/lib/bundler/runtime.rb:13:in `setup' sidekiq_1 | from /usr/local/bundle/gems/bundler-1.10.6/lib/bundler.rb:127:in `setup' sidekiq_1 | from /usr/local/bundle/gems/bundler-1.10.6/lib/bundler/setup.rb:18:in `<top (required)>' sidekiq_1 | from /usr/local/lib/ruby/site_ruby/2.2.0/rubygems/core_ext/kernel_require.rb:54:in `require' sidekiq_1 | from /usr/local/lib/ruby/site_ruby/2.2.0/rubygems/core_ext/kernel_require.rb:54:in `require' backend_1 | /usr/local/bundle/gems/bundler-1.10.6/lib/bundler/spec_set.rb:92:in `block in materialize': Could not find sprockets-3.6.2 in any of the sources (Bundler::GemNotFound) backend_1 | from /usr/local/bundle/gems/bundler-1.10.6/lib/bundler/spec_set.rb:85:in `map!' backend_1 | from /usr/local/bundle/gems/bundler-1.10.6/lib/bundler/spec_set.rb:85:in `materialize' backend_1 | from /usr/local/bundle/gems/bundler-1.10.6/lib/bundler/definition.rb:140:in `specs' backend_1 | from /usr/local/bundle/gems/bundler-1.10.6/lib/bundler/definition.rb:185:in `specs_for' backend_1 | from /usr/local/bundle/gems/bundler-1.10.6/lib/bundler/definition.rb:174:in `requested_specs' backend_1 | from /usr/local/bundle/gems/bundler-1.10.6/lib/bundler/environment.rb:18:in `requested_specs' backend_1 | from /usr/local/bundle/gems/bundler-1.10.6/lib/bundler/runtime.rb:13:in `setup' backend_1 | from /usr/local/bundle/gems/bundler-1.10.6/lib/bundler.rb:127:in `setup' backend_1 | from /usr/local/bundle/gems/bundler-1.10.6/lib/bundler/setup.rb:18:in `<top (required)>' backend_1 | from /usr/local/lib/ruby/site_ruby/2.2.0/rubygems/core_ext/kernel_require.rb:54:in `require' backend_1 | from /usr/local/lib/ruby/site_ruby/2.2.0/rubygems/core_ext/kernel_require.rb:54:in `require' backend_sidekiq_1 exited with code 1 backend_backend_1 exited with code 1
This is my Gemfile: source 'https://rubygems.org' gem 'unicorn', '~> 4.9' gem 'pg', '~> 0.18.3' gem 'sidekiq', '~> 4.0.1' gem 'redis-rails', '~> 4.0.0' # Bundle edge Rails instead: gem 'rails', github: 'rails/rails' gem 'rails', '4.2.6' # Use sqlite3 as the database for Active Record # gem 'sqlite3' # Use SCSS for stylesheets gem 'sass-rails', '~> 5.0' # Use Uglifier as compressor for JavaScript assets gem 'uglifier', '>= 1.3.0' # Use CoffeeScript for .coffee assets and views gem 'coffee-rails', '~> 4.1.0' # See https://github.com/rails/execjs#readme for more supported runtimes # gem 'therubyracer', platforms: :ruby # Use jquery as the JavaScript library gem 'jquery-rails' # Turbolinks makes following links in your web application faster. Read more: https://github.com/rails/turbolinks gem 'turbolinks' # Build JSON APIs with ease. Read more: https://github.com/rails/jbuilder gem 'jbuilder', '~> 2.0' # bundle exec rake doc:rails generates the API under doc/api. gem 'sdoc', '~> 0.4.0', group: :doc # Use ActiveModel has_secure_password # gem 'bcrypt', '~> 3.1.7' # Use Unicorn as the app server # gem 'unicorn' # Use Capistrano for deployment # gem 'capistrano-rails', group: :development group :development, :test do # Call 'byebug' anywhere in the code to stop execution and get a debugger console gem 'byebug' end group :development do # Access an IRB console on exception pages or by using <%= console %> in views gem 'web-console', '~> 2.0' # Spring speeds up development by keeping your application running in the background. Read more: https://github.com/rails/spring gem 'spring' end
When I started the build process, sprockets-3.6.2 was installed. My Dockerfile : # Use the barebones version of Ruby 2.2.3. FROM ruby:2.2.3-slim # Optionally set a maintainer name to let people know who made this image. MAINTAINER Class and Objects <classandobjects@gmail.com> # Install dependencies: RUN apt-get update && apt-get install -qq -y build-essential nodejs libpq-dev postgresql-client-9.4 --fix-missing --no-install-recommends # Set an environment variable to store where the app is installed to inside # of the Docker image. # CHANGE ALL INSTANCE OF 'backend' WITH YOUR PROJECT NAME ENV INSTALL_PATH /backend RUN mkdir -p $INSTALL_PATH # This sets the context of where commands will be ran in and is documented # on Docker's website extensively. WORKDIR $INSTALL_PATH # Ensure gems are cached and only get updated when they change. This will # drastically increase build times when your gems do not change. COPY Gemfile Gemfile RUN bundle install # Copy in the application code from your work station at the current directory # over to the working directory. COPY . . # Provide dummy data to Rails so it can pre-compile assets. RUN bundle exec rake RAILS_ENV=production DATABASE_URL=postgresql://user:pass@127.0.0.1/dbname SECRET_TOKEN=pickasecuretoken #assets:precompile # Expose a volume so that nginx will be able to read in assets in production. VOLUME ["$INSTALL_PATH/public"] # The default command that gets ran will be to start the Unicorn server. CMD bundle exec unicorn -c config/unicorn.rb
My docker-compose.yml : postgres: image: postgres:9.4.5 environment: POSTGRES_USER: backend POSTGRES_PASSWORD: yourpassword ports: - '5432:5432' volumes: - backend-postgres:/var/lib/postgresql/data redis: image: redis:3.0.5 ports: - '6379:6379' volumes: - backend-redis:/var/lib/redis/data backend: build: . links: - postgres - redis volumes: - .:/backend ports: - '8000:8000' env_file: - .backend.env sidekiq: build: . command: bundle exec sidekiq -C config/sidekiq.yml links: - postgres - redis volumes: - .:/backend env_file: - .backend.env
my sidekiq.rb: sidekiq_config = { url: ENV['JOB_WORKER_URL'] } Sidekiq.configure_server do |config| config.redis = sidekiq_config end Sidekiq.configure_client do |config| config.redis = sidekiq_config end
|
| Error ActiveRecord::Tasks::DatabaseAlreadyExists when running tests in Rails 5 Posted: 03 Jul 2016 05:48 AM PDT I am in the process of upgrading a rails app from 4.2 to 5.0.0. I have updated the bundle, and executed rails app:update The app does not need a database, so it is configured with sqlite adapter. It worked before the upgrade. Now - when I am trying to run tests, I get an error: ActiveRecord::Tasks::DatabaseAlreadyExists I have tried: - removing the
sqlite3 gem, and the config/database.yml file - but then it fails with other failures. - deleting the database files, same result.
Below is the output of trying to run a single test file. $ rails test:clip running: test/models/clip_test.rb ruby -Ilib:test test/models/clip_test.rb rails aborted! ActiveRecord::Tasks::DatabaseAlreadyExists: ActiveRecord::Tasks::DatabaseAlreadyExists /home/ubuntu/.rvm/gems/ruby-2.3.1/gems/activerecord-5.0.0/lib/active_record/tasks/sqlite_database_tasks.rb:11:in `create' /home/ubuntu/.rvm/gems/ruby-2.3.1/gems/activerecord-5.0.0/lib/active_record/tasks/sqlite_database_tasks.rb:31:in `ensure in purge' /home/ubuntu/.rvm/gems/ruby-2.3.1/gems/activerecord-5.0.0/lib/active_record/tasks/sqlite_database_tasks.rb:31:in `purge' /home/ubuntu/.rvm/gems/ruby-2.3.1/gems/activerecord-5.0.0/lib/active_record/tasks/database_tasks.rb:188:in `purge' /home/ubuntu/.rvm/gems/ruby-2.3.1/gems/activerecord-5.0.0/lib/active_record/railties/databases.rake:369:in `block (3 levels) in <top (required)>' /home/ubuntu/.rvm/gems/ruby-2.3.1/gems/activerecord-5.0.0/lib/active_record/railties/databases.rake:375:in `block (3 levels) in <top (required)>' /home/ubuntu/.rvm/gems/ruby-2.3.1/gems/railties-5.0.0/lib/rails/commands/rake_proxy.rb:13:in `block in run_rake_task' /home/ubuntu/.rvm/gems/ruby-2.3.1/gems/railties-5.0.0/lib/rails/commands/rake_proxy.rb:10:in `run_rake_task' /home/ubuntu/.rvm/gems/ruby-2.3.1/gems/railties-5.0.0/lib/rails/commands/commands_tasks.rb:51:in `run_command!' /home/ubuntu/.rvm/gems/ruby-2.3.1/gems/railties-5.0.0/lib/rails/commands.rb:18:in `<top (required)>' bin/rails:4:in `require' bin/rails:4:in `<main>' Errno::ETXTBSY: Text file busy @ unlink_internal - /vagrant/rails/playlist/db/test.sqlite3 /home/ubuntu/.rvm/gems/ruby-2.3.1/gems/activerecord-5.0.0/lib/active_record/tasks/sqlite_database_tasks.rb:22:in `drop' /home/ubuntu/.rvm/gems/ruby-2.3.1/gems/activerecord-5.0.0/lib/active_record/tasks/sqlite_database_tasks.rb:28:in `purge' /home/ubuntu/.rvm/gems/ruby-2.3.1/gems/activerecord-5.0.0/lib/active_record/tasks/database_tasks.rb:188:in `purge' /home/ubuntu/.rvm/gems/ruby-2.3.1/gems/activerecord-5.0.0/lib/active_record/railties/databases.rake:369:in `block (3 levels) in <top (required)>' /home/ubuntu/.rvm/gems/ruby-2.3.1/gems/activerecord-5.0.0/lib/active_record/railties/databases.rake:375:in `block (3 levels) in <top (required)>' /home/ubuntu/.rvm/gems/ruby-2.3.1/gems/railties-5.0.0/lib/rails/commands/rake_proxy.rb:13:in `block in run_rake_task' /home/ubuntu/.rvm/gems/ruby-2.3.1/gems/railties-5.0.0/lib/rails/commands/rake_proxy.rb:10:in `run_rake_task' /home/ubuntu/.rvm/gems/ruby-2.3.1/gems/railties-5.0.0/lib/rails/commands/commands_tasks.rb:51:in `run_command!' /home/ubuntu/.rvm/gems/ruby-2.3.1/gems/railties-5.0.0/lib/rails/commands.rb:18:in `<top (required)>' bin/rails:4:in `require' bin/rails:4:in `<main>' Tasks: TOP => db:test:load => db:test:purge (See full trace by running task with --trace) Run options: --seed 20686 # Running: .. Finished in 0.053323s, 37.5073 runs/s, 75.0147 assertions/s. 2 runs, 4 assertions, 0 failures, 0 errors, 0 skips Coverage report generated for Minitest to /vagrant/rails/playlist/coverage. 106 / 188 LOC (56.38%) covered.
|
| How to update a file/image in ROR using AWS S3? Posted: 03 Jul 2016 03:41 AM PDT I'm developing an image editing app in Ruby on Rails, and I want to update my image on AWS S3 cloud storage. Currently I have a system where the user signs in, then using Carrierwave uploader uploads the image on S3 using fog in production, then I have an AJAX call to the controller which triggers the editing using mini_magick gem, then finally reloading the image. The problem is that I don't know how to reupload it on S3 (updating the image), locally it works fine, but the problem is in production on Heroku with S3. One of the answers was this, but for me it doesn't work: (AWS::S3::S3Object.store 's3/path/to/untitled.txt', params[:textarea_contents_params_name], your_bucket_name). This is my code: def flip # controller imagesource = params["imagesource"].to_s # URL image = MiniMagick::Image.open("#{imagesource}") image.combine_options do |i| i.flip end # image.write "#{imagesource}" # development # production AWS::S3::Base.establish_connection!( :access_key_id => 'xxxxxxxxxxxxxx', :secret_access_key => 'xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx' ) AWS::S3::S3Object.store '#{imagesource}', image, 'mybucket' AWS::S3::S3Object.store('#{imagesource}', open(image), 'mybucket') #2nd attempt respond_to do |format| format.json {render :json => {:result => image}} end end
|
| What is the best way to make a database based test maker? Posted: 03 Jul 2016 04:03 AM PDT I am a teacher at a school and I am planning about making test-maker. The blue-print for the application that I want to make is like this: - There is a database that stores information of questions.(fields: question, answer, topic, level, score)
- You can add to the database by reading a csv file or a json file.
- You can make a test using the data from the database based on a query.
- You can style your test template as you like.
- Other teachers(users) can log in and add to the database.
I have done some research on how to make this and thought about using python-django or maybe ruby on rails. But I still can't decide what the best choice would be. I feel that django is a bit more difficult than rails but python's numpy, pandas library might be useful when I look into more complicated data research in the future. Someone told me that using node.js-meteor might be good because you only need to use one programming language. I have experience in writing apps in VB and using SQL. I mainly use a mac. It would be great if I could get some advice on how I should proceed. |
| Rails 5.0.0 Actioncable via Proxy Posted: 03 Jul 2016 03:04 AM PDT I have an chat application deployed to a vps with Puma and Nginx 1.10 my nginx config is the following: upstream websocket { server 127.0.0.1:28080; } server { location /cable { proxy_pass http://websocket/; proxy_http_version 1.1; proxy_set_header Upgrade $http_upgrade; proxy_set_header Connection "Upgrade"; } }
This is my config.ru file for cable: require ::File.expand_path('../../config/environment', __FILE__) Rails.application.eager_load! ActionCable.server.config.disable_request_forgery_protection = true run ActionCable.server
In environment/production.rb config.action_cable.allowed_request_origins = ['http://ahu.mydomain.ir', 'https://ahu.mydomain.ir'] config.action_cable.url = "ws://ahu.mydomain.ir/cable"
My client connected to internet via a proxy server and in chrome console i get the following error: WebSocket connection to 'ws://ahu.mydomain.ir/cable' failed: Establishing a tunnel via proxy server failed In another client without proxy every thing is OK. |
| Can't disable Guard visual notifications for Rails project Posted: 03 Jul 2016 03:01 AM PDT Whenever I run a test in my Rails project, Guard activates one of its many 'visual notification' features and changes the background of my tmux status bar (green for passing, red for failing, and just on the lefthand side). Before: 
After: 
After a little bit of digging (i.e., finding this previously asked question), I discovered that this was a feature of Guard rather than a bug, so I set out to fix the configuration. According to this official documentation, The Guardfile DSL is evaluated as plain Ruby, so you can use normal Ruby code in your Guardfile (and your ~/.guard.rb file which is evaluated first if it exists). and, importantly, Notifications can also be turned off in the Guardfile, in addition to setting the environment variable GUARD_NOTIFY or using the cli switch -n: notification :off
NOTE: since notification is more of a user setting, it's best to have each team member set this in their own ~/.guard.rb file (instead of the project Guardfile). So, I created a one-line ~/.guard.rb and Guardfile in the project root, consisting solely of the line notification :off, but the problem still persists. What else do I have to do to make Guard see its own config file? Notes I'm following Michael Hartl's Ruby on Rails Tutorial. This is the Gemfile, as he's specified it. It uses Minitest. No idea if that matters. |
| Devise related emails are not triggering devise rails Posted: 03 Jul 2016 02:45 AM PDT I have checked all the related articles but didn't find solution. Devise is not sending confirmation email when I am creating a user account through rails console. In logs I am only seeing insert statements, no logs for email. My smtp settings are working fine. My custom mails are triggering but devise emails are not triggered. Not even reset password. Please help |
| rails adding fields to 2 different tables which has many to many relation ship Posted: 03 Jul 2016 05:20 AM PDT i want to make 2 tables, list and cars, and the relation between them is many to many, class CarsController < ApplicationController layout "admin" before_action :find_list def index @cars = @list.cars.all @car_count = @list.cars.count end def show @car = Car.find(params[:id]) end def new @car = Car.new({:list_id => @list.id, :name => "Default"}) @cars_all=Car.all @lists = List.order ('Position ASC') end def create @car = Car.new(car_params) @cars_all=Car.all if @car.save @list.cars << @car flash[:notice] = "Car created successfully" redirect_to(:action => 'index', :list_id => @list.id) else @lists = List.order ('Position ASC') render('new') end end def edit @car = Car.find(params[:id]) @lists = List.order ('Position ASC') @cars_all=Car.all end def update @car = Car.find(params[:id]) @cars_all=Car.all if @car.update_attributes(car_params) flash[:notice] = "Car Updated successfully" redirect_to(:action => 'show', :id => @car.id, :list_id => @list.id) else @lists = List.order ('Position ASC') render('edit') end end def delete @car = Car.find(params[:id]) end def destroy car = Car.find(params[:id]).destroy flash[:notice] = "Car #{car.name} destoryed successfully" redirect_to(:action => 'index', :list_id => @list.id) end private def car_params params.require(:car).permit(:list_id, :name) end def find_list if params[:list_id] @list = List.find(params[:list_id]) end end end
|
| How to SELECT name FROM sqlite_master WHERE (type = 'table' OR type = 'view') AND NOT name = 'sqlite_sequence' AND name = "schema_migrations" Posted: 03 Jul 2016 02:44 AM PDT now i am studying Rails tutorial 7. There is a error :SQLite3::CorruptException: database disk image is malformed: SELECT name FROM sqlite_master WHERE (type = 'table' OR type = 'view') AND NOT name = 'sqlite_sequence' AND name = "schema_migrations" (on localhost:3000) I dont know how to solve this problem. Please tell me. Thanks. railsチュートリアルの７章をしている最中なのですが、 ローカルホストを開くと上記のエラーメッセージが出ます。 google先生に聞いても教えてくれず困っています。 どなたか解決策を知っている方がいたらよろしくお願いします。 |
| Referencing rails assets without the digest? Posted: 03 Jul 2016 02:19 AM PDT I am referencing assets in my rails app directly, for ex. background-image: url('/assets/bg.png'). But I just realized this wouldn't work in production since digested assets are served (/assets/bg-dddasd434r4tfdfs...sada.png) in production. Is my only choice to use helper methods (for ex, image-url) throughout the application or is there a more simpler solution to this? |
| Namespaced class on rails' app folder Posted: 03 Jul 2016 02:05 AM PDT I have the following folder structure: app ├── assets ├── controllers ├── helpers ├── mailers ├── market_adapters │ └── german.rb │...
And the file market_adapters/german.rb is: module MarketAdapters #(I've also tried naming it singular) class German end end
When running tests I get the error: /gems/activesupport-5.0.0/lib/active_support/dependencies.rb:512:in `load_missing_constant': Unable to autoload constant German, expected .../app/market_adapters/german.rb to define it (LoadError)
Adding the market_adapters folder to the autoload_paths seems to have no effect config.autoload_paths << "#{Rails.root}/app/market_adapters" If I move the market_adapters to the lib folder, everything works. But still would like to have it under app, any ideas? By the way, I'm using Rails 5. |
| Search nearby users based on their last location Posted: 03 Jul 2016 01:58 AM PDT Currently, below is my model structure. With geocoder gem, I can do something like User.near([3.102, 101.1231], 30) to find users nearby that coordinate. However, it will only work if User has latitude and longitude columns. Based my my current model, I keep track of User locations, so a user have many locations. If I use Location.near([3.102, 101.1231], 30), I still have to manually find only the latest location for a user from that query. Also, that query will go through all Location records, which over time, will become too big and make the query slow. Is there any good way(s) that I can find users nearby a specific location? class User < ActiveRecord::Base has_many :locations end class Location < ActiveRecord::Base belongs_to :location # columns: user_id, latitude, longitude end
|
| Assign Paperclip Attachment to Multiple Records In Model after_update Callback Posted: 03 Jul 2016 05:05 AM PDT I have products table and each product has category and attachment. I'm using paperclip gem for attachments and my question is how can I assign the attachment to multiple products (products in the same category) once I create/update it in one of the products in the same category? Note: I'm updating other string attributes through the model callbacks before_update & after_update and it's work, but I've tried to access the root_url in the Products model and tried to assign attachment to other products (which can be done just in controller not in model like this) even after add include Rails.application.routes.url_helpers in the Products model but without any result. |
| Dynamic ChartJS Chart Updated in Rails with AJAX Posted: 03 Jul 2016 02:13 AM PDT I am using Rails 5 and the latest ChartJS library (http://www.chartjs.org/docs/). What I want to accomplish is to GET the latest 20 items from the SensorReading model and update the Chart with setInterval and AJAX. I've built the AJAX call and I've loaded the Chart but I fail in two things. First of of all I get a Syntax Error when reading data from Rails: SyntaxError: expected expression, got '&' var labels = ["2016-07-03 10:33:49 +0300", "2016-07-03 10:3
No matter what I tried, they keep to appear with " instead of quotes. Secondly I am unable to update the Chart, as I need a handler available for the Chart itself to call .update() on it. index.html.erb <h1>Dashboard</h1> <div class="ui divider"></div> <div class="ui padded grid"> <div class="four wide column"> <div class="ui statistic"> <div class="value"> <%= @temperature %>.C </div> <div class="label"> TEMPERATURE </div> </div> <br> <div class="ui statistic"> <div class="value"> <%= @humidity %>% </div> <div class="label"> HUMIDITY </div> </div> </div> <div class="twelve wide column"> <div class="ui segment"> <div class="line-chart" style="max-height: 400px; display:block;"> <canvas id="updating-chart"></canvas> </div> </div> </div> </div> <br> <script> var labels = <%= @sensor_readings.map(&:created_at) %>; var canvas = document.getElementById('updating-chart'), ctx = canvas.getContext('2d'), startingData = { labels: labels, datasets: [ { fillColor: "rgba(220,220,220,0.2)", strokeColor: "rgba(220,220,220,1)", pointColor: "rgba(220,220,220,1)", pointStrokeColor: "#fff", data: <%= @sensor_readings.map(&:temperature) %> }, { fillColor: "rgba(151,187,205,0.2)", strokeColor: "rgba(151,187,205,1)", pointColor: "rgba(151,187,205,1)", pointStrokeColor: "#fff", data: <%= @sensor_readings.map(&:humidity) %> } ] }, latestLabel = startingData.labels[6]; // Reduce the animation steps for demo clarity. var myLiveChart = new Chart(ctx , { type: "line", data: startingData, animationSteps: 15 }); setInterval(function(){ // Add two random numbers for each dataset //myLiveChart.data.datasets[0].data[2] = 50; // Would update the first dataset's value of 'March' to be 50 myLiveChart.update(); // Calling update now animates the position of March from 90 to 50. }, 5000); </script>
dashboard.js var ready = function(){ setInterval(refreshSensorReadings, 3000); function refreshSensorReadings(){ console.log("--> Called"); $.rails.ajax({ type: "GET", dataType: 'script', url: "/sensor_readings_chart_data.js", success: function(result){ //$('.line-chart').html(result); console.log(result); } }); }; }; $(document).on('turbolinks:load', ready);
route get 'sensor_readings_chart_data', to: 'sensor_readings#chart_data'
sensor_readings_controller.rb def chart_data @sensor_readings = SensorReading.last(20) respond_to do |format| format.json { head :no_content } format.js end end
Any advice will be appreaciated. |
| Binding Ethereum node into a Rails app, get 'JSON::ParserError: 776' Posted: 03 Jul 2016 01:16 AM PDT I'm new to the field, I'm trying ethereum-ruby to bind Ethereum node into a Rails app. I have a node running APIs via IPC like geth --ipcapi "admin,eth,debug,miner,net,shh,txpool,personal,web3"
and in Rails console I can do client = Ethereum::IpcClient.new("#{ENV['HOME']}/.ethereum/geth.ipc")
but when I try puts client.coinbase["result"] I get and error: JSON::ParserError: 776: unexpected token at '{"jsonrpc":"2.0","error":{"code":-32600,"message":"EOF"}}
|
| Devise-invitable : Upon inviting a user, 2 emails are being sent, an invitation mail and a mail that says "Thank you for registering with us" Posted: 03 Jul 2016 02:08 AM PDT I am using Devise-invitable to send invitations to users using their email addresses. When I send and invitation, one of the mails that is (correctly) sent is one with the invitation link. However, another email gets sent which tells the invitee "Thank you for registering with us.". I cannot find why this is happening. Ruby version : 2.3.0p0 (2015-12-25 revision 53290) [x86_64-darwin15] Rails version : 4.2.4 devise version : 3.5.10 devise_invitable version : 1.6.0
Code in invitations controller: class InvitationsController < Devise::InvitationsController def create params[:user][:email].each do |email| User.invite!({:email => email}, current_user) #If I comment out this line, both emails are not sent end redirect_to root_path end end
|
| ruby on rails: heroku: Missing `secret_key_base` for 'production' environment Posted: 03 Jul 2016 01:29 AM PDT I added the key into heroku config var, but I'm still getting the error. Is this the correct way? I ignored secrets.yml as I read from other sources that its not a good idea to push this to the public. in the heroku config var: [key] SECRET_KEY_BASE [value] 3280570382948240938
in secrets.yml production: secret_key_base: <%= ENV["SECRET_KEY_BASE"] %>
What am I still doing wrong? Furthermore, if I put my secret keys into heroku's config variable, don't other developers get to see this too? So, isn't that still kind of public? I've always wondered this concept. |
| rspec-rails+capybara NoMethodError:undefined method `create' Posted: 03 Jul 2016 02:43 AM PDT I'm learning ruby on rails, but I have a problem that I couldn't solve by myself. Any one can help me? when I run:bundle exec rspec spec/models/user_spec.rb， I got this error: Failure/Error: @user = create(:user) NoMethodError: undefined method `create' for #<RSpec::ExampleGroups::User::PropertiesShouldNotNil:0xb807450> # ./spec/models/user_spec.rb:6:in `block (3 levels) in <top (required)>'
Gemfile: # Bundle edge Rails instead: gem 'rails', github: 'rails/rails' gem 'rails', '5.0.0.rc2' # Use mysql as the database for Active Record gem 'mysql2' # Use SCSS for stylesheets gem 'sass-rails', '~> 5.0' # Use Uglifier as compressor for JavaScript assets gem 'uglifier', '>= 1.3.0' # Use CoffeeScript for .coffee assets and views gem 'coffee-rails', '~> 4.1.0' # See https://github.com/rails/execjs#readme for more supported runtimes # gem 'therubyracer', platforms: :ruby # Use jquery as the JavaScript library gem 'jquery-rails', '~> 2.3.0' # Turbolinks makes following links in your web application faster. Read more: https://github.com/rails/turbolinks gem 'turbolinks' # Build JSON APIs with ease. Read more: https://github.com/rails/jbuilder gem 'jbuilder', '~> 2.0' # bundle exec rake doc:rails generates the API under doc/api. gem 'sdoc', '~> 0.4.0', group: :doc gem 'alipay', '~> 0.10.0' #支付宝接口 gem 'capistrano-rails', :group => :development gem 'capistrano-passenger', :group => :development # Use ActiveModel has_secure_password # gem 'bcrypt', '~> 3.1.7' # Use Unicorn as the app server # gem 'unicorn' # Use Capistrano for deployment # gem 'capistrano-rails', group: :development group :development, :test do # Call 'byebug' anywhere in the code to stop execution and get a debugger console gem 'byebug' # Access an IRB console on exception pages or by using <%= console %> in views #gem 'web-console', '~> 2.0' # Spring speeds up development by keeping your application running in the background. Read more: https://github.com/rails/spring gem 'spring' gem 'rspec-rails' gem "capybara" end group :development do gem 'web-console', group: :development end
spec/rails_helper.rb: ENV["RAILS_ENV"] ||= 'test' require 'spec_helper' require File.expand_path("../../config/environment", __FILE__) require 'rspec/rails' require 'capybara/rails' require 'capybara/rspec' ActiveRecord::Migration.maintain_test_schema! RSpec.configure do |config| config.fixture_path = "#{::Rails.root}/spec/fixtures" config.use_transactional_fixtures = true config.infer_spec_type_from_file_location! end
app/models/user.rb app/models/user.rb has_many :recipients end
spec/models/user_spec.rb: require 'rails_helper' RSpec.describe User, type: :model do context "properties should not nil" do before do @user = create(:user) end subject{ @user } it { should respond_to(:name) } it { should respond_to(:passwd) } end end
|
| Rails Correlated Subquery between two tables Posted: 03 Jul 2016 12:34 AM PDT I wrote following code. But it's not smart. How to write in Rails AcriveRecord Way? sql=<<-"EOS" select shops.*, products.* from shops, products where products.price = (select max(price) from products where shops.id = products.shop_id) and shops.id = products.shop_id; EOS ret = ActiveRecord::Base.connection.select_all(sql)
|
No comments:
Post a Comment