| How to solve NoMethodError in RailsAdmin::Main#index? Posted: 10 Dec 2016 07:41 AM PST When I try to use Rails Admin for articles. I'm getting the following error. This Image shows you the error I am facing Here is articles_controller.rb class ArticlesController < ApplicationController before_action :set_article, only: [:show, :edit, :update, :destroy] before_action :authenticate_auth_user!, except: [:index, :show] # GET /articles # GET /articles.json def index @articles=Article.all end # GET /articles/1 # GET /articles/1.json def show end # GET /articles/new def new @article = Article.new end # GET /articles/1/edit def edit end # POST /articles # POST /articles.json def create @article = Article.new(article_params) respond_to do |format| if @article.save format.html { redirect_to @article, notice: 'Article was successfully created.' } format.json { render :show, status: :created, location: @article } else format.html { render :new } format.json { render json: @article.errors, status: :unprocessable_entity } end end end # PATCH/PUT /articles/1 # PATCH/PUT /articles/1.json def update respond_to do |format| if @article.update(article_params) format.html { redirect_to @article, notice: 'Article was successfully updated.' } format.json { render :show, status: :ok, location: @article } else format.html { render :edit } format.json { render json: @article.errors, status: :unprocessable_entity } end end end # DELETE /articles/1 # DELETE /articles/1.json def destroy @article.destroy respond_to do |format| format.html { redirect_to articles_url, notice: 'Article was successfully destroyed.' } format.json { head :no_content } end end private # Use callbacks to share common setup or constraints between actions. def set_article @article = Article.find(params[:id]) @comments = @article.comments.all @comment = @article.comments.build end # Never trust parameters from the scary internet, only allow the white list through. def article_params params.require(:article).permit(:title, :meta_description, :description, :category_id, :video) end end
And here is article.rb file in model class Article include Mongoid::Document include Mongoid::Timestamps has_many :comments belongs_to :category field :title, type: String field :meta_description, type: String field :description, type: String field :category_id, type: String field :video, type: String end
Here is my gemfile source 'https://rubygems.org' ruby "2.3.1" # Bundle edge Rails instead: gem 'rails', github: 'rails/rails' gem 'rails', '~> 5.0.0', '>= 5.0.0.1' # Use sqlite3 as the database for Active Record gem 'sqlite3' # Use Puma as the app server gem 'puma', '~> 3.0' # Use SCSS for stylesheets gem 'sass-rails', '~> 5.0.6' # Use Uglifier as compressor for JavaScript assets gem 'uglifier', '>= 1.3.0' # Use CoffeeScript for .coffee assets and views gem 'coffee-rails', '~> 4.2' # 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 navigating your web application faster. Read more: https://github.com/turbolinks/turbolinks gem 'turbolinks', '~> 5' # Build JSON APIs with ease. Read more: https://github.com/rails/jbuilder gem 'jbuilder', '~> 2.5' gem 'mongoid', '~>6.0.3' gem 'carrierwave-mongoid', :require => 'carrierwave/mongoid' gem 'friendly_id', '~> 5.2' gem 'devise', '~> 4.2' gem 'mail_form', '~> 1.6' gem 'ckeditor', '~> 4.2' gem 'rails_admin', '~> 1.1' gem 'twitter-bootstrap-rails', '~> 3.2', '>= 3.2.2' gem 'bootstrap-sass', '3.2.0.2' gem 'less-rails', '~> 2.8' gem 'therubyracer', '~> 0.12.2' gem 'mongoid-ancestry', '~> 0.4.2' gem 'simple_form', '~> 3.3', '>= 3.3.1' # Use Redis adapter to run Action Cable in production # gem 'redis', '~> 3.0' # Use ActiveModel has_secure_password # gem 'bcrypt', '~> 3.1.7' # Use Capistrano for deployment # gem 'capistrano-rails', group: :development group :production do gem 'pg', '~> 0.19.0' gem 'rails_12factor', '~> 0.0.3' end group :development, :test do # Call 'byebug' anywhere in the code to stop execution and get a debugger console gem 'byebug', platform: :mri end group :development do # Access an IRB console on exception pages or by using <%= console %> anywhere in the code. gem 'web-console' gem 'listen', '~> 3.0.5' # Spring speeds up development by keeping your application running in the background. Read more: https://github.com/rails/spring gem 'spring' gem 'spring-watcher-listen', '~> 2.0.0' end # Windows does not include zoneinfo files, so bundle the tzinfo-data gem gem 'tzinfo-data', platforms: [:mingw, :mswin, :x64_mingw, :jruby]
How can I solve this problem? |
| How to programmatically get current db schema Posted: 10 Dec 2016 06:35 AM PST How to programmatically get current db schema as struct or enumerable or some like this. I'd like to walk through schema and know list of tables and fields with types and indexes and so on. Please provide api reference or class name and method or path to file from root of repo to see. |
| Perform action each hour in Ruby on Rails app Posted: 10 Dec 2016 07:24 AM PST I have certain method that get some information from web and add it to DB. But I need to perform this method each hour. How can I do it in my rails app? |
| rails HABTM to has many through Posted: 10 Dec 2016 06:15 AM PST class QuestionSet has_and_belongs_to_many :questions, class_name: 'Exam', join_table: 'question_question_sets', foreign_key: 'question_set_id', association_foreign_key: 'question_id' end class Question has_and_belongs_to_many :question_sets, class_name: 'Exam', join_table: 'question_question_sets', foreign_key: 'question_id', association_foreign_key: 'question_set_id' end
The above models are inherited from the base model Exam(using rails STI) and the join table contains two fields: question_id and question_set_id. Now I need to convert this association into has_many through. I have tried as follows: class QuestionQuestionSet has_many :questions has_many :question_sets end class Question has_many :question_question_sets, foreign_key: :question_id has_many :question_sets, through: :question_question_sets end class QuestionSet has_many :question_question_sets, foreign_key: :question_set_id has_many :questions, through: :question_question_sets end
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| Rails is not sending custom font to browser Posted: 10 Dec 2016 05:47 AM PST I'm having problems to add custom fonts to a rails app. it doesn't work locally,. At my network tab i can't see my custom font being loaded. font is stored at: /assets/fonts/Page-icon.ttf Assets.rb: Rails.application.config.assets.paths << "#{Rails.root}/app/assets/fonts" Rails.application.config.assets.precompile += %w( .svg .eot .woff .ttf .otf)
Application.rb: config.assets.enabled = true config.assets.paths << "#{Rails.root}/app/assets/fonts"
Rails 5.0.0.1 thanks |
| Disable logging for column in activerecord/activejob 4.2 Posted: 10 Dec 2016 05:46 AM PST is there any way to disable logging for certain columns in ActiveRecord/ActiveJob? I'm using delayed_job to queue mailing jobs with attachments, but when having activerecord debug enabled (I need to have it on) the log is filled with the INSERT statements with the attachments encoded. I was looking a this answer http://stackoverflow.com/a/21731809/6712797 but it doesn't seem to work, as I understand because when entering the log_with_binary_truncate method the sql is already populated and the binds array is empty, don't know if has something to do in how ActiveJob works. In summary, i need to have debug enabled, but not log some column, or trim them if they are long (as the link provided), and I'm not talking about request parameters. Thanks in advance |
| How to handle big Rails 5 application? Posted: 10 Dec 2016 05:31 AM PST I am assigned a task where I need to check the params are passed as Hash to the jobs. Scenario: Inside app/jobs there are 211 files. I have to check which one have parameter called params. Then look at the name of that job inside the config/initializers/services.rb (CreatesSomethingJob probably maps to :creates_something). Then, search inside the controllers for that service reference. If the service is being given params object, use params.to_unsafe_h instead of just params. How would you tackle this? What is your way of doing it? |
| What is the easiest way to use MDI icons in my Rails 4 Project? Posted: 10 Dec 2016 05:16 AM PST I want to use MDI icons in my new Ruby on Rails 4 project. How I integrate MDI icons with my Rails code? What to include in my Gemfile? https://materialdesignicons.com/ offer only NPM way. It should be SASS or CDN way. Or, another way what best you prefer? Thanks. |
| Is it possible to set custom foreign key in Rails? Posted: 10 Dec 2016 06:03 AM PST I've searched a lot and tried to set as: class Choco < ActiveRecord::Base has_many :kinds, inverse_of: :choco, foreign_key: :myhash
and class Kind < ActiveRecord::Base belongs_to :choco, foreign_key: :myhash
So, I want to when I create a new kind, it will take myHash value from the Choco table and paste as a choco_id. But instead it pastes in that column NULL and I cannot understand why. What is the problem? Schema For Choco: — (id, title, myhash)
For Kind: — (id, choco_id, title)
I want to paste myhash on choco_id field |
| one-to-many dynamic menu in rails Posted: 10 Dec 2016 05:06 AM PST I believe I am caught in a black zone between rails4 and rails 5 functionalities to generate dynamic menus. The grouped_collection_select for rails5 available on rails 4 I have working for many-to-many relationships... However Consumo belongs_to :articolo Consumo => attr_accessor :tipoarticolo_id Articolo belongs_to :tipoarticolo
the form to create a consumo calls <%= collection_select(:consumo, :tipoarticolo_id, @tipoarticolos, :id, :tipoarticolo_label, {prompt: "do something"}) %> <%= f.collection_select :articolo_id, @articolos, :id, :descrizione, prompt: "again" %>
I have route resources :consumos do collection do get :get_articolos, to: 'consumos#get_articolos' end end
app/assets/javascripts/consumos.js.coffee is set $(document).ready -> $(".tipoarticolo_selection").on "change", -> $.ajax url: "/consumos/get_articolos" type: "GET" dataType: "script" data: tipoarticolo_id: $('.tipoarticolo_selection option:selected').val()
to invoke app/views/consumos/get_articolos.js.erb $('.tipoarticolo_selection').empty(); $('.tipoarticolo_selection').append( $('<option>scegliere articolo</option>')); <% @articolos.each do |articolo| %> $('.tipoarticolo_selection').append($('<option value="<%= articolo.id %>"><%= articolo.descrizione %></option>')); <% end %>
@articolos renders all the relevant option values, but does not react to a change in tipoarticolo_id (which is confirmed by the prompt string which does not change to the one of the js.erb file consumos controller states def get_articolos @magazzino = Magazzino.where('user_id = ?', current_user.id).first @scortes = Scorte.where('magazzino_id = ?', @magazzino.id).pluck('articolo_id') @articolos = Articolo.where("tipoarticolo_id = ? AND id IN (?)", params[:tipoarticolo_id], @scortes) end
Where have I missed something? |
| Rails carrierwave multiple file upload error Posted: 10 Dec 2016 04:51 AM PST I've been experiencing some issues with implementing multiple file uploads i've tried a few ways to get it to work namely the answers here Rails 4 multiple image or file upload using carrierwave. I couldn't get the first answer to work however i was able to get the second answer, and the one most similar to the carrierwave docs to add a entry to the database which looked like this; images: [{"tempfile"=>[], "original_filename"=>"Cinque_Deck-and-Jacuzzi.jpg", "content_type"=>"image/jpeg", "headers"=>"Content-Disposition: form-data; name=\"location[images][]\"; filename=\"Cinque_Deck-and-Jacuzzi.jpg\"\r\nContent-Type: image/jpeg\r\n"}, {"tempfile"=>[], "original_filename"=>"cooking.jpeg", "content_type"=>"image/jpeg", "headers"=>"Content-Disposition: form-data; name=\"location[images][]\"; filename=\"cooking.jpeg\"\r\nContent-Type: image/jpeg\r\n"}, {"tempfile"=>[], "original_filename"=>"hanging-rock.jpg", "content_type"=>"image/jpeg", "headers"=>"Content-Disposition: form-data; name=\"location[images][]\"; filename=\"hanging-rock.jpg\"\r\nContent-Type: image/jpeg\r\n"}]> However when i try to display it, i get "NoMethodError in Locations#show", "undefined method `url' for #" Can someone please tell me what i'm doing wrong? I've been working on this for days now and not getting anywhere. The rest of my code is show.html.erb <%= image_tag @location.images[0].url, class: "display-location animated bounce" %> <div class = "row hidden-sm-down"> <div class = "col-sm-4 hidden-sm-down"> <a href = "#" class = "thumbnail"> <%= image_tag @location.images[1].url %> </a> </div> <div class = "col-sm-4"> <a href = "#" class = "thumbnail"> <%= image_tag @location.images[2].url %> </a> </div> <div class = "col-sm-4"> <a href = "#" class = "thumbnail"> <%= image_tag @location.images[3].url %> </a> </div> </div>
schema.rb ActiveRecord::Schema.define(version: 20161210123055) do enable_extension "plpgsql" create_table "locations", force: :cascade do |t| t.string "name" t.string "address" t.string "website" t.datetime "created_at", null: false t.datetime "updated_at", null: false t.string "image" t.text "description" t.string "price" t.json "images" end
locations controller class LocationsController < ApplicationController .... # GET /locations # GET /locations.json def index @locations = Location.all @locations = @locations.paginate(:page => 1, :per_page => 2) end # GET /locations/1 # GET /locations/1.json def show @random_location = Location.where.not(id: @location).order("RANDOM()").first(3) @reviews = Review.where(location_id: @location.id).order("created_at DESC") if @reviews.blank? @avg_rating = 0 else @avg_rating = @reviews.average(:rating).round(2) end end # GET /locations/new def new @location = Location.new end # GET /locations/1/edit def edit end # POST /locations # POST /locations.json def create @location = Location.new(location_params) respond_to do |format| if @location.save format.html { redirect_to @location, notice: 'Location was successfully created.' } format.json { render :show, status: :created, location: @location } else format.html { render :new } format.json { render json: @location.errors, status: :unprocessable_entity } end end end # PATCH/PUT /locations/1 # PATCH/PUT /locations/1.json def update respond_to do |format| if @location.update(location_params) format.html { redirect_to @location, notice: 'Location was successfully updated.' } format.json { render :show, status: :ok, location: @location } else format.html { render :edit } format.json { render json: @location.errors, status: :unprocessable_entity } end end end # DELETE /locations/1 # DELETE /locations/1.json def destroy @location.destroy respond_to do |format| format.html { redirect_to locations_url, notice: 'Location was successfully destroyed.' } format.json { head :no_content } end end private # Use callbacks to share common setup or constraints between actions. def set_location @location = Location.find(params[:id]) end # Never trust parameters from the scary internet, only allow the white list through. def location_params params.require(:location).permit(:name, :price, :address, :website, :description, {images: []}) end def check_user unless current_user.admin? redirect_to root_url, alert: "Sorry currently only admins have that functionality" end end end
Thanks, |
| Ruby on Rails page control Posted: 10 Dec 2016 04:16 AM PST I'm sorry, my English is bad. Question: i have model Pages with columns title, description etc. I can create, change, destroy this pages. I can see the contents of the link mydomian/pages/1. I need for each page has been template and rout, so i can see the content on the link, example maydomian/contacts. How to do it? Help me please. |
| How to check logs for Rails application on Unicorn and Nginx? Posted: 10 Dec 2016 02:57 AM PST I'm facing issue with one part of application which doesn't exist when I run application from production environment on localhost but there are no logs presented in /log folder. Application is running on DigitalOcean with Debian 8 droplet. |
| Ruby method doesn't seem to return value Posted: 10 Dec 2016 03:02 AM PST I'm new to Ruby (and Rails), and I'm trying to take the form data from the view file and calculate something in the controller, but no value seems to be returned by the method. I have a feeling it's something very simple that I'm overlooking. This is inside a def create: def calcQuadrant important = params[:task][:important] # INT of 0 or 1 urgent = params[:task][:urgent] # INT of 0 or 1 if important == 1 && urgent == 1 return 1 elsif important == 1 && urgent == 0 return 2 elsif important == 0 && urgent == 1 return 3 elsif important == 0 && urgent == 0 return 4 end end
calcQuadrant doesn't seem return anything, even when I put important or urgent to the console and they have values. I'm ultimately trying to assign the value returned by calcQuadrant to a new param: params[:task][:quadrant].
At a high level, what I'm really trying to figure out is the best way for passing a param to the model which wasn't passed to the controller from the view. Is the best way to do that just assigning a value to that param in the controller? For example, I ask the user for a 'to-do' and whether the to-do is 'important' and/or 'urgent'. Based on their choices, I calculate a quadrant for the task to go into. Rather than saving the importance and urgency of the to-do in the DB, I just want to save the quadrant. |
| Rails engine dependencies not loading properly when using Cucumber Posted: 10 Dec 2016 02:07 AM PST I'm developing a Rails 5 engine (https://github.com/Sento/sento-kanban) using a "normal" Rails 5 application mounting the engine from the local disk. Now I'm looking to add automated testing using Cucumber and I'm facing a dependencies loading issue when running the first scenario, and the first step which is visiting the root page of the app: $ ccucumber Using the default profile... Feature: Create a new board In order to manage my projects As a project manager I want to create a new board Scenario: Try to create a new board without a title # features/boards/create_a_board.feature:6 Given I'm creating a board with an empty title # features/step_definitions/board_steps.rb:1 File to import not found or unreadable: perfect-scrollbar. Load paths: /application/spec/test_app/app/assets/config /application/spec/test_app/app/assets/images /application/spec/test_app/app/assets/javascripts /application/spec/test_app/app/assets/stylesheets /application/app/assets/config /application/app/assets/images /application/app/assets/javascripts /application/app/assets/stylesheets /usr/local/bundle/gems/unobtrusive_flash-3.3.1/lib/assets/javascripts /usr/local/bundle/gems/unobtrusive_flash-3.3.1/lib/assets/stylesheets /usr/local/bundle/gems/pace-rails-0.1.3/vendor/assets/javascripts /usr/local/bundle/gems/pace-rails-0.1.3/vendor/assets/stylesheets /usr/local/bundle/gems/modal-responder-rails-1.0.3/vendor/assets/javascripts /usr/local/bundle/gems/modal-responder-rails-1.0.3/vendor/assets/stylesheets /usr/local/bundle/gems/perfect-scrollbar-rails-0.6.15/vendor/assets/javascripts /usr/local/bundle/gems/perfect-scrollbar-rails-0.6.15/vendor/assets/stylesheets /usr/local/bundle/bundler/gems/dragula-rails-9417236588b6/vendor/assets/javascripts /usr/local/bundle/bundler/gems/dragula-rails-9417236588b6/vendor/assets/stylesheets /usr/local/bundle/gems/actioncable-5.0.0.1/lib/assets/compiled /usr/local/bundle/gems/bootstrap-4.0.0.alpha5/assets/stylesheets /usr/local/bundle/gems/bootstrap-4.0.0.alpha5/assets/javascripts /usr/local/bundle/gems/bootstrap-4.0.0.alpha5/assets/stylesheets (ActionView::Template::Error) ./app/assets/stylesheets/sento/kanban/application.scss:22 ./app/views/layouts/sento/kanban/application.html.slim:11:in `__application_app_views_layouts_sento_kanban_application_html_slim___2646165938008234128_69844567400820' ./features/step_definitions/web_steps.rb:2:in `/^(?:|I )go to (.+)$/' ./features/step_definitions/board_steps.rb:2:in `/^I'm creating a board with an empty title$/' features/boards/create_a_board.feature:7:in `Given I'm creating a board with an empty title'
Regarding the paths, I'm using Docker, mounting the project as /application/ It seems the engine dependencies aren't loaded. Even worst, when I comment the lines requiring perfect-scrollbar and all the other external libraries, keeping only the import of the engine's style/*, it also say it cannot find this folder. Can anyone give me a direction in order to solve this? |
| How to get rows with a distinct column in Rails Posted: 10 Dec 2016 01:25 AM PST How do I make a query that will give me all columns of a row, while a specific column is distinct amongst the results? I have User and Message models where each user has many messages. I want to retrieve one message for each distinct from (phone number represented as a string). If I use user.messages.select(:from).distinct this gives me one message for each distinct from, but I only have the from attribute available. Current result: [#<Message id: nil, from: "+12033189163">, #<Message id: nil, from: "+12033189166">]
Instead I want the query to return all the attributes/columns for each row. Temporarily I am just running: user.messages.group_by(&:from).map { |_, thread| thread.first }
which works for now but I think is bad because it is loading every message instead of just one for each group. Is there a better, and more efficient way? |
| Rails: merge simplecov results gives RuntimeError (can't modify frozen object) Posted: 10 Dec 2016 12:36 AM PST I'm trying to use simplecov to check code coverage by tests in Rails application. So I bumped into common problem: the uncovered files are not shown in the report. Adding Rails.application.eager_load! to test_helper.rb as well as changing config/environments/test.rb (solutions for this question: Simple cov gem missing untested files in Rails) didn't work for me. I tried the solution proposed here: https://github.com/colszowka/simplecov/issues/16#issuecomment-31076575 Now my test_helper.rb looks like this: require 'simplecov' SimpleCov.start do add_group 'Controllers', 'app/controllers' add_group 'Models', 'app/models' add_group 'Helpers', 'app/helpers' add_group 'Mailers', 'app/mailers' add_group 'Views', 'app/views' end all_files = Dir['**/*.rb'] base_result = {} all_files.each do |file| absolute = File::expand_path(file) lines = File.readlines(absolute, :encoding => 'UTF-8') base_result[absolute] = lines.map do |l| l.strip! l.empty? || l =~ /^end$/ || l[0] == '#' ? nil : 0 end end SimpleCov.at_exit do merged = SimpleCov::Result.new(Coverage.result).original_result.merge_resultset(base_result) result = SimpleCov::Result.new(merged) result.format! end #Rails.application.eager_load! ENV['RAILS_ENV'] ||= 'test' require File.expand_path('../../config/environment', __FILE__) require 'rails/test_help' class ActiveSupport::TestCase # Setup all fixtures in test/fixtures/*.yml for all tests in alphabetical order. fixtures :all # Add more helper methods to be used by all tests here... end
Now after calling rails test I get the error: Running via Spring preloader in process 17211 Run options: --seed 8726 # Running: ................................... Finished in 3.251970s, 10.7627 runs/s, 15.6828 assertions/s. 35 runs, 51 assertions, 0 failures, 0 errors, 0 skips /var/lib/gems/2.3.0/gems/simplecov-0.12.0/lib/simplecov/merge_helpers.rb:29:in `extend_object': can't modify frozen object (RuntimeError) from /var/lib/gems/2.3.0/gems/simplecov-0.12.0/lib/simplecov/merge_helpers.rb:29:in `extend' from /var/lib/gems/2.3.0/gems/simplecov-0.12.0/lib/simplecov/merge_helpers.rb:29:in `block in merge_resultset' from /var/lib/gems/2.3.0/gems/simplecov-0.12.0/lib/simplecov/merge_helpers.rb:28:in `each_key' from /var/lib/gems/2.3.0/gems/simplecov-0.12.0/lib/simplecov/merge_helpers.rb:28:in `merge_resultset' from /home/tamila/Ruby/workspace/books_app/test/test_helper.rb:24:in `block in <top (required)>' from /var/lib/gems/2.3.0/gems/simplecov-0.12.0/lib/simplecov/defaults.rb:67:in `block in <top (required)>' from /var/lib/gems/2.3.0/gems/spring-1.7.2/lib/spring/application.rb:161:in `fork' from /var/lib/gems/2.3.0/gems/spring-1.7.2/lib/spring/application.rb:161:in `serve' from /var/lib/gems/2.3.0/gems/spring-1.7.2/lib/spring/application.rb:131:in `block in run' from /var/lib/gems/2.3.0/gems/spring-1.7.2/lib/spring/application.rb:125:in `loop' from /var/lib/gems/2.3.0/gems/spring-1.7.2/lib/spring/application.rb:125:in `run' from /var/lib/gems/2.3.0/gems/spring-1.7.2/lib/spring/application/boot.rb:19:in `<top (required)>' from /usr/lib/ruby/2.3.0/rubygems/core_ext/kernel_require.rb:55:in `require' from /usr/lib/ruby/2.3.0/rubygems/core_ext/kernel_require.rb:55:in `require' from -e:1:in `<main>'
Is there a way either to fix this error or to load the files without this bunch of code? |
| How do I enable :recoverable in Devise? Posted: 10 Dec 2016 12:05 AM PST By default, the forgot password in Devise doesn't actually send a password reset link to email and I know the :recoverable module is what needs to be enabled/implemented. I have tried searching for tutorials or guides in google and here in stackoverflow but no success. Where can I find a good example or what code do I need to enable it? |
| How to use modal with login? Posted: 09 Dec 2016 10:22 PM PST How can I use modal with login? <%= link_to login_path, data: { modal: true } do %> Log in via Email <% end %>
sessions_controller def new @session = ??? # Model.new is what it should be but Session isn't a model so I don't know what to put instead to work with tutorial (cited below) respond_modal_with @session end def create user = User.find_by(email: params[:session][:email].downcase) if user && user.authenticate(params[:session][:password]) log_in user params[:session][:remember_me] == 'nil' ? forget(user) : remember(user) else flash[:alert] = 'INVALID EMAIL/PASSWORD COMBINATION' render 'new' end end
application_controller def respond_modal_with(*args, &blk) options = args.extract_options! options[:responder] = ModalResponder respond_with *args, options, &blk end
routes get 'login' => 'sessions#new' post 'login' => 'sessions#create' delete 'logout' => 'sessions#destroy'
sessions/new <%= simple_form_for(:session, url: login_path, html: { data: { modal: true } }) do |f| %> Test <% end %>
I followed this tutorial to implement modal code: http://www.jetthoughts.com/blog/tech/2014/08/27/5-steps-to-add-remote-modals-to-your-rails-app.html. It works elsewhere on my app. |
| Can't install Jekyll on Mint Posted: 09 Dec 2016 07:48 PM PST I installed ruby and ruby gems, updated both of them, tried to install jekyll using the command sudo gem install jekyll bundler
it gave me this Building native extensions. This could take a while... ERROR: Error installing jekyll: ERROR: Failed to build gem native extension. current directory: /var/lib/gems/2.3.0/gems/ffi-1.9.14/ext/ffi_c /usr/bin/ruby2.3 -r ./siteconf20161209-4826-wdshax.rb extconf.rb checking for ffi.h... *** extconf.rb failed *** Could not create Makefile due to some reason, probably lack of necessary libraries and/or headers. Check the mkmf.log file for more details. You may need configuration options. Provided configuration options: --with-opt-dir --without-opt-dir --with-opt-include --without-opt-include=${opt-dir}/include --with-opt-lib --without-opt-lib=${opt-dir}/lib --with-make-prog --without-make-prog --srcdir=. --curdir --ruby=/usr/bin/$(RUBY_BASE_NAME)2.3 --with-ffi_c-dir --without-ffi_c-dir --with-ffi_c-include --without-ffi_c-include=${ffi_c-dir}/include --with-ffi_c-lib --without-ffi_c-lib=${ffi_c-dir}/lib --with-libffi-config --without-libffi-config --with-pkg-config --without-pkg-config /usr/lib/ruby/2.3.0/mkmf.rb:456:in `try_do': The compiler failed to generate an executable file. (RuntimeError) You have to install development tools first. from /usr/lib/ruby/2.3.0/mkmf.rb:587:in `try_cpp' from /usr/lib/ruby/2.3.0/mkmf.rb:1091:in `block in have_header' from /usr/lib/ruby/2.3.0/mkmf.rb:942:in `block in checking_for' from /usr/lib/ruby/2.3.0/mkmf.rb:350:in `block (2 levels) in postpone' from /usr/lib/ruby/2.3.0/mkmf.rb:320:in `open' from /usr/lib/ruby/2.3.0/mkmf.rb:350:in `block in postpone' from /usr/lib/ruby/2.3.0/mkmf.rb:320:in `open' from /usr/lib/ruby/2.3.0/mkmf.rb:346:in `postpone' from /usr/lib/ruby/2.3.0/mkmf.rb:941:in `checking_for' from /usr/lib/ruby/2.3.0/mkmf.rb:1090:in `have_header' from extconf.rb:16:in `<main>' To see why this extension failed to compile, please check the mkmf.log which can be found here: /var/lib/gems/2.3.0/extensions/x86_64-linux/2.3.0/ffi-1.9.14/mkmf.log extconf failed, exit code 1 Gem files will remain installed in /var/lib/gems/2.3.0/gems/ffi-1.9.14 for inspection. Results logged to /var/lib/gems/2.3.0/extensions/x86_64-linux/2.3.0/ffi-1.9.14/gem_make.out Successfully installed bundler-1.13.6 Parsing documentation for bundler-1.13.6 Done installing documentation for bundler after 7 seconds 1 gem installed
Here is what it says in the log file: package configuration for libffi is not found "gcc -o conftest -I/usr/include/x86_64-linux-gnu/ruby-2.3.0 -I/usr/include/ruby-2.3.0/ruby/backward -I/usr/include/ruby-2.3.0 -I. -Wdate-time -D_FORTIFY_SOURCE=2 -g -O2 -fstack-protector-strong -Wformat -Werror=format-security -fPIC conftest.c -L. -L/usr/lib/x86_64-linux-gnu -L. -Wl,-Bsymbolic-functions -Wl,-z,relro -Wl,-z,now -fstack-protector -rdynamic -Wl,-export-dynamic -lruby-2.3 -lpthread -lgmp -ldl -lcrypt -lm -lc" In file included from /usr/include/ruby-2.3.0/ruby/ruby.h:36:0, from /usr/include/ruby-2.3.0/ruby.h:33, from conftest.c:1: /usr/include/ruby-2.3.0/ruby/defines.h:26:19: fatal error: stdio.h: No such file or directory compilation terminated. checked program was: /* begin */ 1: #include "ruby.h" 2: 3: int main(int argc, char **argv) 4: { 5: return 0; 6: } /* end */
I'm running Linux Mint, and I can't find anything to help this problem. One gem of jekyll is installed and I'm able to create jekyll projects, but only partially and I can't run it on my local host and edit it. Any more questions let me know and I'll try my best to help provide the details. |
| how to perform a background job rails? Posted: 09 Dec 2016 10:42 PM PST I've got a campaign table with a start date and end date. How do I go about running a daily task that would basically flip a boolean 'active' value in the table from true to false when the current date is greater than the end date. I haven't dealt with any background tasks, just wondering how that is done. |
| Remotipart ( + Carrierwave) not uploading files nor using ajax Posted: 09 Dec 2016 06:17 PM PST I've spent a week right now trying to get this to work, reading as much as I can about remotipart, and trying to set it right, but I have failed miserably. I have form which has a title, description, an audio file and an image file. If I submit the form without remote: true it works perfectly, but once I try to upload the form with ajax, it seems like the files are not being uploaded. Since I made the audio file a requirement for posting, I get redirected to the new action, displaying the error indicating that 'audio' must not be blank. Even if I remove this validation from the model, once I try to upload, there is no audio file being uploaded. Also, by checking the developer tools, I've realized that the response I'm getting is not javascript, but html. I've already tried other gems, like jquery-uploadfile-rails, but none of them work for me for different reasons. I have no idea what to do right now. _form.html.erb <%= form_for(post, html: {multipart: true, remote: true}, authenticity_token: true) do |f| %> <div id="form-content"> <div class="input-group field"> <span class="input-group-addon"><%= f.label 'Title' %></span> <%= f.text_field :title, class: "form-control", placeholder: "Title" %> </div> <div class="input-group field"> <span class="input-group-addon"><%= f.label :descrption %></span> <%= f.text_field :description, class: "form-control", placeholder: "Brief Description" %> </div> <div class="input-group field"> <span class="input-group-addon"><%= f.label :audio %></span> <%= f.file_field :audio, class: "filestyle", 'data-iconName' => "glyphicon glyphicon-music", 'data-buttonText' => "Browse" %> </div> <div class="input-group field"> <span class="input-group-addon"><%= f.label :art %></span> <%= f.file_field :art, class: "filestyle", 'data-iconName' => "glyphicon glyphicon-picture", 'data-buttonText' => "Browse" %> </div> <%= button_tag(type: 'submit', class: "btn btn-block btn-primary", id: "btn-post") do %> <span class="icon-ok icon-white"></span> Post now! <% end %> </div> <% end %>
posts_controller.rb def create @post = Post.new(post_params) @post.user_id = current_user.id respond_to do |format| if @post.save format.html { redirect_to action: 'index' } format.js format.json { render :show, status: :created, location: @post } else format.html { render :new } format.js format.json { render json: @post.errors, status: :unprocessable_entity } end end end
create.js.erb // Display a Javascript alert alert('success!'); <% if remotipart_submitted? %> alert('submitted via remotipart') <% else %> alert('submitted via native jquery-ujs') <% end %>
Lastly, I'm still learning about rails, it's arquitechture, and the 'rails way'. Even though I've been trying to do everything correctly, I'm pretty sure I have been improvising some parts, trying to solve errors. If you find anything weird and feel like sharing, I'll be completely open to learn the good way. If you need to check any other part of my code just tell me. Thanks! |
| PermanentRedirect Exception: aws-sdk s3 Rails 5 Posted: 09 Dec 2016 10:23 PM PST I'm trying to list or retrieve objects from an amazon bucket and I keep getting this error message: (byebug) resp = s3.list_objects(bucket:'mp3list') *** Aws::S3::Errors::PermanentRedirect Exception: The bucket you are attempting to access must be addressed using the specified endpoint. Please send all future requests to this endpoint.
I can upload and delete files from the same bucket with no problem. Does someone know how to specify that endpoint? and where? My configuration of the s3 bucket: Bucket: mp3play Region: Frankfurt Creation Date: Fri Dec 09 17:44:39 GMT+100 2016 Owner: aaa Can list, upload, delete.
aws.rb > Aws.config.update({ credentials: Aws::Credentials.new(ENV['AWS_ACCESS_KEY_ID'], ENV['AWS_SECRET_ACCESS_KEY']), region: 'eu-central-1' }) # list buckets in Amazon S3 s3 = Aws::S3::Client.new resp = s3.list_buckets S3_BUCKET = resp.buckets[0] resp.buckets.map(&:name) S3 = Aws::S3::Resource.new(region: 'eu-central-1')
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| Application.html.haml not rendering anywhere Posted: 09 Dec 2016 07:03 PM PST I ran into this problem while doing a pinterest clone in Ruby on Rails (https://www.youtube.com/watch?v=abcnfFS_DS8) My application.html.haml file isn't rendering, and it seems the only way to edit the homepage is to add to index.html.haml layouts/_application.html.haml !!! 5 %html %head %title Pin Board = stylesheet_link_tag 'application', media: 'all', 'data-turbolinks-track' => true = javascript_include_tag 'application', 'data-turbolinks-track' => true = csrf_meta_tags %body %nav.navbar.navbar-default .container .navbar-brand= link_to "Pin Board", root_path - if user_signed_in? %ul.nav.navbar-nav.navbar-right %li= link_to "New Pin", new_pin_path %li= link_to "Account", edit_user_registration_path %li= link_to "Sign Out", destroy_user_session_path, method: :delete - else %ul.nav.navbar-nav.navbar-right %li= link_to "Sign Up", new_user_registration_path %li= link_to "Sign In", new_user_session_path .container - flash.each do |name, msg| = content_tag :div, msg, class: "alert alert-info" = yield
//index.html.haml = link_to "New Pin", new_pin_path - @pins.each do |pin| %h2= link_to pin.title, pin
// What my index looks like 
// What the tutorial looks like at this point 
If I was to make a guess I would say this is a problem with Bootstrap, or possibly I'm missing some code that connects application.html.haml, or maybe my versions are off? |
| Rails the best way to scope vars Posted: 09 Dec 2016 06:20 PM PST i have a 'Course' model that has the following attributes; Course Price - float Featured - boolean
My question would be the following, I need 4 lists in my controller, recent courses, paid courses, free courses and featured courses. It would be good practice to write my controller as follows? def index @courses = Course.order(created_at: :desc) @free_courses = [] @courses.map {|c| @free_courses << c if c.price == 0} @premium_courses = [] @courses.map {|c| @premium_courses << c if c.price> 0} @featured_courses = [] @courses.map {|c| @featured_courses << c if c.featured} end
Or do the consultations separately? def index @courses = Course.order(created_at: :desc) @free_courses = Course.where("price == 0") @premium_courses = Course.where("price > 0") @featured_courses = Course.where(featured: true) end
I checked through the logs that the first option is more performance but I am in doubt if it is an anti partner. Thanks for all! |
| Split datetime into two separate form fields (RAILS) Posted: 09 Dec 2016 06:23 PM PST Question: How do I split datetime into two separate form fields? I have the following: <%= f.label :Borrowed, "Check Out Date*" %></td> <%= f.date_field :Borrowed, :id => "datepicker", min:Date.today, :ignore_time => true, :required => true %></td> <%= f.label :Borrowed, "Check Out Time*" %> <%= f.time_field :Borrowed, min:"9:00 AM", max: "4:30 PM", default:"10:00 AM", :ignore_date => true, :required => true%> <td><%= f.label :Returned, "Check In Date" %> <td><%= f.date_field :Returned, :id => "datepicker", min:Date.today, :ignore_time => true, :required => true %> <td><%= f.label :Returned, "Check In Time*" %> <td><%= f.time_field :Returned, min:"9:00 AM", max: "4:30 PM", default:"10:00 AM", :ignore_date => true, :required => true%>
So, I have two datetime fields in my database: Borrowed and Returned. I wanted to split up the date and the time so the user could pick a date from a calendar using a jQuery script. (This may be the problem...) What happens is when I fill out and submit the form the time saves correctly, but the date is the same on both Borrowed and Returned. So in the database it looks like this: Returned: 2016-12-09 15:00:00 -0800 Borrowed: 2016-12-09 10:00:00 -0800
jQuery $('#datepicker').datepicker({format: 'dd/mm/yyyy'});
Gems gem 'bootstrap-timepicker-rails' gem 'bootstrap-datepicker-rails'
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| How to edit a page of information and send a request to be updated for a mod? Posted: 09 Dec 2016 04:21 PM PST I have a database full of movie information and i would want users to be able to edit that information, but i don't want the information to get updated just yet. I would want a request to be send to a moderator to review it first before anything. How would i go with something like this? I was thinking of making another column with the edited information so mods can check and update. - So a user would go to /movies/1
- User will then see the information and notice that some of the information is outdated.
- User clicks on a edit information button and edits the info.
- User presses save and it's sent to a column for a mod to check.
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| Controller test: "ShoppingList.count" didn't change by 1. Expected: 3 Actual: 2 Posted: 10 Dec 2016 02:53 AM PST I test the controlller "shopping_list". However when I start the test I get this error: Failure: ShoppingListsControllerTest#test_should_create_shopping_list [C:/Users/Clemens/meindorfladen/Server/test/controllers/shopping_lists_controller_test.rb:30]: "ShoppingList.count" didn't change by 1. Expected: 3 Actual: 2
So one parameter is missing, but how can this be? Does somebody know the answer? Here is the code: shopping_lists.yml shopping_list_drogerie: user: user_heiko name: Drogerie created_at: <%= Time.now %> updated_at: <%= Time.now %> shopping_list_lebensmittel: user: user_schmitt name: Lebensmittel created_at: <%= Time.now %> updated_at: <%= Time.now %>
db/schema create_table "shopping_lists", force: :cascade, options: "ENGINE=InnoDB DEFAULT CHARSET=utf8" do |t| t.integer "user_id" t.datetime "created_at", null: false t.datetime "updated_at", null: false t.string "name" t.index ["user_id"], name: "index_shopping_lists_on_user_id", using: :btree end
models/shopping_list.rb class ShoppingList < ApplicationRecord # db associations belongs_to :user # if a shopping list is deleted, also delete information about all items on the list has_many :list_items, :dependent => :destroy # if a shopping list is deleted, also delete information about who it was shared with has_many :shared_lists , :dependent => :destroy has_many :shared_with_users,through: :shared_lists, :source => :user has_many :invitation has_one :appointment # validations validates :user, :presence => true validates :name, presence: true, allow_blank: false, uniqueness: {scope: :user_id} end
controllers/shopping_lists_controller.rb class ShoppingListsController < ApplicationController load_and_authorize_resource # GET /shopping_lists/1 # GET /shopping_lists/1.json def show end # POST /shopping_lists # POST /shopping_lists.json def create respond_to do |format| if @shopping_list.save format.html { redirect_to shopping_list_list_items_path(@shopping_list), alert: 'Shopping list was successfully created.' } format.json { render :show, status: :created, location: @shopping_list } else format.html { render :new } format.json { render json: @shopping_list.errors, status: :unprocessable_entity } end end end # PATCH/PUT /shopping_lists/1 # PATCH/PUT /shopping_lists/1.json def update respond_to do |format| if @shopping_list.update(shopping_list_params) format.html { redirect_to @shopping_list, notice: 'Shopping list was successfully updated.' } format.json { render :show, status: :ok, location: @shopping_list } else format.html { render :edit } format.json { render json: @shopping_list.errors, status: :unprocessable_entity } end end end # DELETE /shopping_lists/1 # DELETE /shopping_lists/1.json def destroy @shopping_list.destroy respond_to do |format| format.html { redirect_to shopping_lists_url, notice: 'Shopping list was successfully destroyed.' } format.json { head :no_content } end end private # Use callbacks to share common setup or constraints between actions. def set_shopping_list @shopping_list = ShoppingList.find(params[:id]) end # Never trust parameters from the scary internet, only allow the white list through. private def shopping_list_params params.require(:shopping_list).permit(:name) end end
EDIT: sorry I forgot the test-controller: shopping_lists_controller_test require 'test_helper' class ShoppingListsControllerTest < ActionDispatch::IntegrationTest include Devise::Test::IntegrationHelpers include Warden::Test::Helpers setup do @drogerieShoppingList = shopping_lists(:shopping_list_drogerie) @heiko = users(:user_heiko) @heikoAppointment = appointments(:appointment_heiko) end test "should get index" do login_as(@heiko) @heiko.confirmed_at = Time.now get shopping_lists_url assert_response :success end test "should get new" do login_as(@heiko) @heiko.confirmed_at = Time.now get new_shopping_list_url assert_response :success end test "should create shopping_list" do login_as(@heiko) @heiko.confirmed_at = Time.now assert_difference('ShoppingList.count') do #post shopping_lists_url, params: { shopping_list: @drogerieShoppingList.attributes, user_id: @heiko.id, appointment: @heikoAppointment } post shopping_lists_url, params: { shopping_list: @drogerieShoppingList.attributes } end assert_redirected_to shopping_list_url(ShoppingList.last) end test "should show shopping_list" do login_as(@heiko) @heiko.confirmed_at = Time.now get shopping_list_url(@drogerieShoppingList) assert_response :success end test "should get edit" do login_as(@heiko) @heiko.confirmed_at = Time.now get edit_shopping_list_url(@drogerieShoppingList) assert_response :success end test "should update shopping_list" do login_as(@heiko) @heiko.confirmed_at = Time.now patch shopping_list_url(@drogerieShoppingList), params: { shopping_list: {name: 'WochenendEinkauf' } } assert_redirected_to shopping_list_url(@drogerieShoppingList) end test "should destroy shopping_list" do login_as(@heiko) @heiko.confirmed_at = Time.now assert_difference('ShoppingList.count', -1) do delete shopping_list_url(@drogerieShoppingList) end assert_redirected_to shopping_lists_url end end
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| ruby greater than sign getting nomethoderror Posted: 09 Dec 2016 04:26 PM PST I wrote the following code in Ruby, but keep getting NoMethodError: undefined method '>' for nil:NilClass. Not sure why it thinks > is a method? def count_positives_sum_negatives(lst) pos = 0 neg = 0 for i in 0..lst.length if lst[i] > 0 pos += 1 elsif lst[i] < 0 neg += 1 end end return [pos, neg] end
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| How to skip the name of folder in routes path in Rails? Posted: 09 Dec 2016 11:34 PM PST I'm building a frontend part in my rails app. The controllers like posts, comments, etc., will be in a folder I named it public. Therefore, the folders of posts in view is inside public folder as well, but I would like routes come after the root like: localhost:3000/posts
NOT: localhost:3000/public/posts It means I would like to skip public folder in routes. |
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