| Filterring ActiveRecord Relation...if there are no matches. (Null the active record relation) Posted: 30 Nov 2016 06:35 AM PST I have a dashboard that allows for filtering of the results by different parameters. I build methods to filter the results by the given criteria. One area where I'm having trouble is if the previous line should null out the active record relation. Should I just put a bunch of if present? stat def find_website_stats(options = {}) if options[:date_between].present? start_date = options[:date_between].split(/-/).first.to_date end_date = options[:date_between].split(/-/).last.to_date + 1 elsif options[:start_date].present? start_date = options[:start_date].to_date end_date = options[:end_date].to_date + 1 if options[:end_date].present? end contractor_name = options[:search_contractor] if options[:search_contractor].present? distributor_name = options[:search_distributor] if options[:search_distributor].present? distributor_ids = options[:with_distributor] if options[:with_distributor].present? contractor_ids = options[:with_contractor] if options[:with_contractor].present? with_country = options[:with_country] if options[:with_country].present? with_state = options[:with_state] if options[:with_state].present? search_city = options[:search_city] if options[:search_city].present? web_stats = self.website_stats if web_stats.present? web_stats = web_stats.where(contractor_id: [*contractor_ids]) if contractor_ids.present? if distributor_ids.present? web_stat_ids = DistributorWebsiteStat.where(distributor_id: [*distributor_ids]).pluck(:website_stat_id) web_stats = web_stats.where(id: [*web_stat_ids]) end web_stats = web_stats.where(date_recorded: start_date..end_date) if start_date.present? && end_date.present? web_stats = web_stats.with_country(with_country) if with_country.present? web_stats = web_stats.with_state(with_state) if with_state.present? web_stats = web_stats.search_city(search_city) if search_city.present? #untested if contractor_name.present? searched_contractor_ids = Brand.search_contractor(contractor_name).pluck(:id) web_stats = web_stats.where(contractor_id: [*searched_contractor_ids]) end if distributor_name.present? searched_distributor_ids = Brand.search_distributor(distributor_name).pluck(:id) web_stat_ids = DistributorWebsiteStat.where(distributor_id: [*searched_distributor_ids]) web_stats = web_stats.where(id: [*web_stat_ids]) end
| rails polymorphic_url destroy action Posted: 29 Nov 2016 07:43 AM PST I have some polymorphic_urls which are working ok for actions like new, edit, index, but I need it to destroy action too. Now url's are written like polymorphic_url [:admin, item], action: :edit, routing_type: :path
I didn't see in docs anything related to destroy action, if there are possibility to call it somehow? | | Unique attribute in has_many association with simple_form Posted: 29 Nov 2016 07:44 AM PST I have the following problem I don't know how to solve: ModelA has_many ModelB ModelB has an bool attribute "default". ModelA must have only one ModelB entry with true "default" attribute. Now, if a new ModelB with "default" set to true is added to ModelA that already contains a ModelB with "default" set to true, the old ModelB will be set to false and the newly added stays true. I'm using simple_form and cocoon gem to manipulate the data in the views. Thanks for your help! | | RSpec - accessing array methods Posted: 29 Nov 2016 07:36 AM PST I'm new to testing and struggling with some of the concepts. I understand the idea is to test things in isolation through mocks and stubs, however am struggling with the following: class Circle has_many :jobs def accepted jobs.where('sitter_id > 0') end end class Job belongs_to :circle end
And my RSpec: require 'rails_helper' RSpec.describe Circle, type: :model, focus: true do let (:circle_1) { FactoryGirl.create(:circle, title: 'London', location: 'London', administrator_id: 1) } let (:job_1) { FactoryGirl.create(:job, start_time: "2016-11-14 20:00:00", end_time: "2016-11-14 23:00:00", tokens_offered: 6, requester_id: 1, circle_id: 1, sitter_id: 5, actual_start_time: "2016-11-14 20:00:00", actual_end_time: "2016-11-14 23:30:00", tokens_paid: 7) } before do circle_1.stub(:jobs).and_return([job_1]) end describe 'instance methods' do context 'accepted' do it 'should return jobs with a sitter' do expect(circle_1.accepted).to include(job_1) end end end end
This results in: NoMethodError: undefined method `where' for #<Array:0x007feb4ae72858>
Would I then stub the behaviour of the where method on the array? What I'm confused by is surely that's exactly what I'm testing, and by stubbing it I'm basically telling the test what the code does rather than testing the code itself? If someone could explain if I'm understanding this wrong, and either way how I can either rewrite the test or get it to pass, it would be greatly appreciated. | | Iterate through array of arrays and pass coordinates to google map Posted: 29 Nov 2016 07:27 AM PST In my Rails app I have google map that I want to display pins based on coordinates (latitude, longitude). I have dummy data in user.rb file as an array and I'm trying to map through it and pass coordinates to google map, however I'm missing something basic, because all works if I supply it manually. So how do I iterate so coordinates would be displayed on map? #user.rb class User < ApplicationRecord COORDINATES = [[51.50853, -0.076132], [51.510357, -0.116773]] def self.latitude COORDINATES.map do |x| x[0] # How to pass coordinates correctly? end end def self.longitude COORDINATES.map do |x| x[-1] # How to pass coordinates correctly? end end end
That's User controller index action: def index @latitude = User.latitude @longitude = User.longitude end
And that's index.html.erb. Here I provide @latitude and @longitude. handler = Gmaps.build('Google'); handler.buildMap({ provider: {}, internal: {id: 'map'}}, function(){ markers = handler.addMarkers([ { "lat": <%= @latitude %>, "lng": <%= @longitude %> } ]); });
| | Get next and previous versions for a version id using paper_trail Posted: 29 Nov 2016 07:14 AM PST I'm using the paper trail gem to version my Pages model. I have a method called version which takes a page_id and version_id. def version page = Page.where(id: params[:page_id]).first @version = page.versions.where(id: params[:version_id]).first @previous_version = @version.previous_version rescue nil @next_version = @version.next_version rescue nil end
What I want to do is get the next and previous versions to pass them to my view. However I can only access the current version. @previous_version and @next_version are always nil even though I have next and previous versions. It seems it doesn't know what the methods previous_version and next_version are. | | Getting all the hashes in an array for which one key matches Posted: 29 Nov 2016 06:54 AM PST I have an array of hashes with the same keys and I want to get all the hash for which the value of one is same. Eg : [{:a => 1, :b => 2, :c => 5}, {:a => 1, :b => 4, :c => 15}, {:a => 12, :b => 2, :c => 6}] Result : [{:a => 1, :b => 2, :c => 5}, {:a => 1, :b => 4, :c => 15}] hash = [{:a => 1, :b => 2, :c => 5}, {:a => 1, :b => 4, :c => 15}, {:a => 12, :b => 2, :c => 6}] hash.select {|k| k[:a] = 1}
Thanks in advance. | | Restrict file upload of html.erb file Posted: 29 Nov 2016 06:49 AM PST How do I restrict a file upload input field so that only html.erb files are accepted? I have an input field like the following: <%= f.input :upload_field, as: :file, label: false %>
I know the accept setting can control this inside an input_html tag but I am not sure how to implement it correctly. | | SSL Certificate from RapidSSL with Heroku and CloudFront Posted: 29 Nov 2016 06:35 AM PST I missed the end date of my SSL certificate few days ago but I did buy the renew last month. My app runs with Ruby on Rails using Heroku and CloudFront for the assets. My SSL certificate come from RapidSSL. Here is the process I did: - I got the
RapiddSSL key by email that i store in a crt file - I ran the
Heroku command line heroku certs:update cert.crt server.key -- app remote production The command line heroku certs --app remote production results with a trusted status but when I open the URL browsers warns about that untrusted certificate. At the same time none of application assets stored on CloudFront are available (net::ERR_INSECURE_RESPONSE). I asked for help on Heroku assistance, they told me that the SSL certificate for the app is OK but it's seems to need an update for assets certificate. So I went to AWS console in aim to find CloudFront SSL configuration, I ended on ACM console page to give the RapidSSL certificate to resolve the problem but I cannot be sure to take the right files to do this. What I need is to solve the access to the website and to the associated assets to ensure trust of my customers. What did I wrong? Am I missing something? Thanks for any help you can provide! | | Devise subdomains - from www.appname.com/admin/login to admin.appname.com/login Posted: 29 Nov 2016 06:35 AM PST I have two Devise models: users and admins. Current my routes to admins are: Rails.application.routes.draw do devise_for :admins, path: 'admin', path_names: { sign_in: 'login', sign_out: 'logout'} end
I want to change from www.appname.com/admin/login to admin.appname.com/login How can I achieve this? | | rails active record association, fill up foreign key using build from console Posted: 29 Nov 2016 06:13 AM PST I'm building a very simple rails association and testing it through console. I have a User model and a Courses model. These are associated in the following way: class User < ApplicationRecord has_many :courses, :dependent => :destroy end class Course < ApplicationRecord belongs_to :teacher, :foreign_key => 'teacher_id', :class_name => 'User' end
When testing through console I need to have a user_id column in the courses table in order to run User.first.courses.build
However, doing that I am left with an empty teacher_id in the courses table. I would like to know if it is possible to have only a teacher_id column in the courses table (no user_id which seems to me redundant) and to fill it up automatically running User.first.courses.build
| | Relationship Models Posted: 29 Nov 2016 06:02 AM PST I'm fairly new to rails and I'm having trouble with some Model Relationships. I have these tables +--------------+-----------------+------+ | Artists | Artist Features | Tags | +--------------+-----------------+------+ | ID | ID | ID | | Name | artist_id | name | | Address | price | | | Country | tag_id | | | Email | | | +--------------+-----------------+------+
I have relationships between Artists and Artist Features artists has_many artist_features and artist_features has_many tags. I want to, with a query get all Artists, features and tags based on the structure above, artist_id and tag_id I've used the below to get the artists and the corresponding artist_features but would like to also get the tags too based on the tag_id @Artists = Artist.all.artist_features
| | How to use joint query in this association - Ruby on Rails Posted: 29 Nov 2016 06:20 AM PST I am working in ruby 2.1.5 and rails 3.2.1. I want to list all the company in grid which is associated to company_name = John Company table: 
company model: has_many :partner_relationships, :class_name => "CompanyRelationship",:foreign_key => 'partner_id',
company_relationships table: 
I want to get all the company information from company table where company.id = partner_id. I tried the below query Company.joins(:partner_relationships).where('company_relationships.partner_id' => company.id)
This is returning 3 set of same data that is <#id:2, company_name:John, description:I am John#> I want to return the records as follows <#id:1, company_name:Jose, description:I am Jose#>, <#id:3, company_name:George, description:I am George#>,..<#id:5, company_name:Alwin, description:''#> Please help me in solving this. | | Devise user to create profile based on role_type after devise sign_up Posted: 29 Nov 2016 06:37 AM PST I'm new to Rails and building a job-board marketplace.I'm stuck with a user signup profile form. I'm using devise(4.2) and I liked the idea suggested below by @richard peck where he suggests to create profile before user_create and then just redirect to profile view and update users table with registration form. Building User profile based on Devise My signup is a 2-way process. step 1 - devise sign-up form with just an extra field to check role of user as user(jobseeker)or company. Step 2 - Using this role, create separate profile forms for users and company. If role is not committed to DB, then user also should not be saved and again user sign_up must happen. At present, I'm trying with just one generic user form which has fields first_name and last_name. I used before_create :build_profile in user model which creates a blank profile and user. Now, I want after sign_up to be redirected to profile page to add first and last names and this data be updated to the blank profile just created for that user. So I've overwritten after_sign_up_path_for in my registrations_controller to redirect to profile form but it doesn't redirect at all. Can someone provide sample code as I've tried several ways and even if I create profile separately, the mapping of user to its profile is not successful? I using Devise with Rails 5. The error I'm getting is:UrlGenerationError in RegistrationsController#create. routes.rb Rails.application.routes.draw do mount RailsAdmin::Engine => '/admin', as: 'rails_admin' root "jobs#index" devise_for :users, :controllers => {:omniauth_callbacks => "users/omniauth_callbacks", registrations: "registrations"} resources :users do # nested resource for job_applications resources :job_applications, only: [:show, :index] resources :profiles, only: [:show, :update] end resources :jobs, :categories, :job_applications get '/dashboard' => 'jobs#dashboard' end
reg_con class RegistrationsController < Devise::RegistrationsController protected def after_sign_up_path_for(resource) #request.env['omniauth.origin'] || user_profile_path if resource.class == RailsAdmin rails_admin_path elsif resource.class == User && current_user.role == 'user' user_profile_path else # to check for company user resource.class == User && current_user.role == 'company' puts "redirecting to company profile" end end end
profiles_controller.rb class ProfilesController < ApplicationController def show end def update @profile = Profile.find_by_user_id(profile_params) current_user.update(@profile) end def destroy @profile.destroy respond_with(@profile) end private def profile_params params.require(:user).permit(profile_attributes: []) end def set_profile @profile = Profile.find(params[:id]) end end
profile.rb class Profile < ApplicationRecord belongs_to :user end
user.rb class User < ApplicationRecord include Gravtastic gravtastic after_initialize :set_default_role before_create :build_profile devise :database_authenticatable, :registerable, :recoverable, :rememberable, :trackable, :validatable devise :omniauthable, :omniauth_providers => [:facebook] enum role: [:user, :company, :admin] has_many :jobs, :foreign_key => 'company_id', :dependent => :destroy has_many :job_applications has_one :profile def self.from_omniauth(auth) where(provider: auth.provider, uid: auth.uid).first_or_create do |user| user.email = auth.info.email user.password = Devise.friendly_token[0, 20] end end def build_profile Profile.create true end def set_default_role self.role ||= :user end
| | How can i add a method to an existing class in Rails 5? Posted: 29 Nov 2016 04:44 AM PST Sorry for my bad english. I have to add a method in Date class in Rails because i want to use my translated day names. So, i tried: class Date def date_of_next(day) date = Date.parse(day) delta = date > Date.today ? 0 : 7 date + delta end end
in config/initializers/date_of_next.rb but when i call Date.date_of_next(day) in my controller i get "no method in Date". How can i do that? And where should i put the file? | | Why does the second 'delete :destroy' in this spec not run? Posted: 29 Nov 2016 05:45 AM PST I have a spec that is giving unexpected results. I've not been able to track down the cause. Can anyone help point me in the right direction? let(:object1) { create :object } let(:object2) { create :object } let(:user) { create :user } describe "DELETE #destroy" do before :each do Rails.logger.info "Object 1 ID: #{object1.id}" Rails.logger.info "Object 2 ID: #{object4.id}" user.roles.push Role.where(name: 'FullAccess').first sign_in user delete :destroy, {:id => object1.to_param} end it { expect { delete :destroy, {:id => object2.to_param} }.to change(Object, :count).by(-1) } end
Results in Failure/Error: expect { delete :destroy, {:id => object2.to_param} }.to change(Object, :count).by(-1) expected #count to have changed by -1, but was changed by 0
But if I comment out delete in the before block, the test passes. before :each do sign_in user # delete :destroy, {:id => office1.to_param} end
Why would the second object not be deleted? edit The method being tested is def ObjectController < ApplicationController load_and_authorize_resource def destroy Rails.logger.info "DELETE OBJECT ID: #{@object.id}" @object.destroy respond_to do |format| format.html { redirect_to objects_url, notice: t('.notice') } format.json { head :no_content } end end end
Edit 2 Added logging codes to the examples above. The log output now includes Object 1 ID: 1 Object 2 ID: 2 DELETE OBJECT ID: 1 DELETE OBJECT ID: 1
| | Ruby Multiple Image Uplaod Posted: 29 Nov 2016 03:55 AM PST I have a ruby function which uploads images to AWS. At a time user selects about 200 images. I want to run this function inside a thread. Then the user uploads another set of images. In this process some of the images are not uploading. Is it an issue to upload bulk images inside threads? | | Bootstrap date-picker calendar issue Posted: 29 Nov 2016 03:58 AM PST I am using Bootstrap date-picker to select mm/dd/yyyy, and seeing wired behavior with calendar  some of the next month day's value is encountered in current month calendar. I have tried with css background color and z-index properties but didn't succeed. When I inspect it in the developer tools I see two tr with: <tr> <td class="day disabled">27</td> <td class="day disabled">28</td> <td class="day">29</td> <td class="day">30</td> <td class="day new">1</td> <td class="day new">2</td> <td class="day new">3</td> </tr> <tr> <td class="day new">4</td> <td class="day new">5</td> <td class="day new">6</td> <td class="day new">7</td> <td class="day new">8</td> <td class="day new">9</td> <td class="day new">10</td> </tr>
which are causing the overlapping. | | Rails Rspec IntegrationTest Capybara Posted: 29 Nov 2016 07:42 AM PST I have started to test my app via Rspec (Capybara). This is how I am doing it: require 'rails_helper' RSpec.describe "Homepages", type: :request do describe "GET / without login" , js: true do before(:all) do Employee.create(username: "username", password: "12345", password_confirmation: "12345") end it "works!" do visit root_path fill_in "loginname", with: "username" fill_in "password", with: "12345" click_button('sign_in') end end end
Because of env namely "TEST-ENV" I have to create an employee at first. the problem is, if I run 'rake spec:requests', I get this errors: 1) Homepages GET / without login works! Got 0 failures and 2 other errors: 1.1) Failure/Error: def initialize(template, original_exception) super(original_exception.message) @template, @original_exception = template, original_exception @sub_templates = nil set_backtrace(original_exception.backtrace) end ArgumentError: wrong number of arguments (1 for 2) #/.rvm/gems/ruby-2.1.1/gems/actionview-4.2.7/lib/action_view/template/error.rb:64:in `initialize' # /.rvm/gems/ruby-2.1.1/gems/capybara-2.10.1/lib/capybara/session.rb:128:in `exception' # /.rvm/gems/ruby-2.1.1/gems/capybara-2.10.1/lib/capybara/session.rb:128:in `raise' # /.rvm/gems/ruby-2.1.1/gems/capybara-2.10.1/lib/capybara/session.rb:128:in `rescue in raise_server_error!' # /.rvm/gems/ruby-2.1.1/gems/capybara-2.10.1/lib/capybara/session.rb:125:in `raise_server_error!' # /.rvm/gems/ruby-2.1.1/gems/capybara-2.10.1/lib/capybara/session.rb:113:in `reset!' # /.rvm/gems/ruby-2.1.1/gems/capybara-2.10.1/lib/capybara.rb:334:in `block in reset_sessions!' # /.rvm/gems/ruby-2.1.1/gems/capybara-2.10.1/lib/capybara.rb:334:in `reverse_each' # /.rvm/gems/ruby-2.1.1/gems/capybara-2.10.1/lib/capybara.rb:334:in `reset_sessions!' # /.rvm/gems/ruby-2.1.1/gems/capybara-2.10.1/lib/capybara/rspec.rb:21:in `block (2 levels) in <top (required)>' # ------------------ # --- Caused by: --- # Capybara::CapybaraError: # Your application server raised an error - It has been raised in your test code because Capybara.raise_server_errors == true # /.rvm/gems/ruby-2.1.1/gems/capybara-2.10.1/lib/capybara/session.rb:126:in `raise_server_error!'
| | rails : association tabel (has_and_belongs_to_many) not save any record Posted: 29 Nov 2016 03:37 AM PST i use rails 5 , simple form. in my app there is a Category model and there is a OnlineProduct model. i dont know why when i want to add some categories to my OnlineProduct association table remain empty and don't change. Category model: class Category < ApplicationRecord has_ancestry has_and_belongs_to_many :internet_products end
InternetProduct model: class InternetProduct < ApplicationRecord belongs_to :user belongs_to :business has_and_belongs_to_many :categories end
InternetProduct controller: def new @internet_product = InternetProduct.new end def create @internet_product = InternetProduct.new(internet_product_params) respond_to do |format| if @internet_product.save format.html { redirect_to @internet_product, notice: 'Internet product was successfully created.' } format.json { render :show, status: :created, location: @internet_product } else format.html { render :new } format.json { render json: @internet_product.errors, status: :unprocessable_entity } end end end private: def internet_product_params params.require(:internet_product).permit(:name, :description, :mainpic, :terms_of_use, :real_price, :price_discount, :percent_discount, :start_date, :expire_date, :couponـlimitation, :slung, :title, :meta_data, :meta_keyword, :enability, :status, :like, :free_delivery, :garanty, :waranty, :money_back, :user_id, :business_id, categoriesـattributes: [:id, :title]) end
and in the view only the part of who relate to categories : <%= f.association :categories %>
all the categories list in view (form) but when i select some of them not save in database. in rails console i do this p = InternetProduct.find(5) p.categories = Category.find(1,2,3)
this save to database without any problem, what should i do ? tanks for reading this | | Ruby compass - cannot load such file -- compass/core (LoadError) Posted: 29 Nov 2016 05:05 AM PST I'm trying to install and work around compass gem and the commands I used while installing this are - gem install sass gem install compass
Now I can see the version of sass with the command - sass --version
But when I do - compass --version
The messsage i get is - /home/name/.rbenv/versions/2.3.1/lib/ruby/site_ruby/2.3.0/rubygems/core_ext/kernel_require.rb:55:in `require': cannot load such file -- compass/core (LoadError) from /home/name/.rbenv/versions/2.3.1/lib/ruby/site_ruby/2.3.0/rubygems/core_ext/kernel_require.rb:55:in `require' from /home/name/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/compass-1.0.3/lib/compass.rb:14:in `block in <top (required)>' from /home/name/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/compass-1.0.3/lib/compass.rb:13:in `each' from /home/name/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/compass-1.0.3/lib/compass.rb:13:in `<top (required)>' from /home/name/.rbenv/versions/2.3.1/lib/ruby/site_ruby/2.3.0/rubygems/core_ext/kernel_require.rb:55:in `require' from /home/name/.rbenv/versions/2.3.1/lib/ruby/site_ruby/2.3.0/rubygems/core_ext/kernel_require.rb:55:in `require' from /home/name/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/compass-1.0.3/bin/compass:20:in `block in <top (required)>' from /home/name/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/compass-1.0.3/bin/compass:8:in `fallback_load_path' from /home/name/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/compass-1.0.3/bin/compass:19:in `<top (required)>' from /home/name/.rbenv/versions/2.3.1/bin/compass:22:in `load' from /home/name/.rbenv/versions/2.3.1/bin/compass:22:in `<main>'
I've tried searching on google and went through whole lot of github issues and stackoverflow questions regarding compass, but any of those didn't help. How should i resolve this issue? Update:- I was asked to include the o/p of following command here - gem list -d | grep compass -A 4
O/p:- compass (1.0.3) Authors: Chris Eppstein, Scott Davis, Eric M. Suzanne, Brandon Mathis, Nico Hagenburger Homepage: http://compass-style.org Installed at: /home/name/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0 A Real Stylesheet Framework compass-core (1.0.3) Authors: Chris Eppstein, Scott Davis, Eric M. Suzanne, Brandon Mathis Homepage: http://compass-style.org/reference/compass/ License: MIT Installed at: /home/name/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0 The Compass core stylesheet library -- compass-import-once (1.0.5) Author: Chris Eppstein Homepage: https://github.com/chriseppstein/compass/tree/master/import-once License: MIT Installed at: /home/name/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0 Speed up your Sass compilation by making @import only import each
| | `rake db:seed:shop:curtain` fail with “Don't know how to build task 'db:seed:shop:curtain'”? Posted: 29 Nov 2016 03:04 AM PST ruby 2.1.5, rails 4.2, rake installed gem "seedbank" seedbank (0.3.0) I have following structure: seeds/shop/curtain/ I want run all seed files from folder curtain rake db:seed:shop:curtain
rake aborted! Don't know how to build task 'db:seed:shop:curtain' What wrong, explain me please. Thank you | | Read the JSON array value in the rails controller Posted: 29 Nov 2016 03:21 AM PST I have try to getting the params via post method POST /api/test HTTP/1.1 Host: localhost:3000 Content-Type: application/json Cache-Control: no-cache Postman-Token: 945ce038-4bf1-ed50-afcb-cc715cf3a3fc { "service_requests": [{"service_id":2},{"service_id" : 3}] }
In the controller I have test with a method and print like this. But I could not able to print this. How do I print all the values in for each or for loop from this Json Array of JSON Objects def test render :html => params[:service_requests][0].service_id end
| | Javascript : make request again when accessing previous state Posted: 29 Nov 2016 02:25 AM PST I use this in my JS: window.history.replaceState({url: , scrollTop: wTop}, 'foo', 'bar');
But when I go to another page from here then press the back button, I end up not firing a request. Instead, my browser loads everything back from its "disk cache". I'd like to fire the request again, since my state has change and it should ask for the corrected page. How can I achieve that? I tried with this in my rails controller: response.headers['Cache-Control'] = 'no-cache, no-store, must-revalidate' response.headers['Pragma'] = 'no-cache' response.headers['Expires'] = '0'
But apparently, the history list is not entirely related to the cache feature. | | Nested Forms In rails Using cocoon Gem Posted: 29 Nov 2016 02:38 AM PST For Nested forms in rails, I used cocoon gem. I included gem 'cocoon' in gem file and 'require cocoon' in application.js file. In output am getting nested forms but the values which is am giving is not stored in the backend(mysql)?? kindly help me..! My Controller as follows class SubjectsController < ApplicationController load_and_authorize_resource before_action :set_subject, only: [:show, :edit, :update, :destroy] def index @subjects = Subject.where("org_id = ?", current_user.org_id) end def new @subject = Subject.new @subject.subject_modules.build getStandard_lists end def create @subject = Subject.new(subject_params) @subject.org_id = current_user.org_id @subject.created_by = current_user.username respond_to do |format| if @subject.save format.html { redirect_to @subject and flash[:notice] = 'Subject created successfully.' } else getStandard_lists format.html { render :new } end end end def edit getStandard_lists end def update @subject.updated_by = current_user.username respond_to do |format| if @subject.update(subject_params) format.html { redirect_to @subject and flash[:notice] = 'Subject updated successfully.'} else getStandard_lists render :edit end end end def getStandard_lists @standard_list = Standard.select("standard_id,standard_name") .where("org_id = ?",current_user.org_id) .order("standard_order") end def assignStandard @subject = Subject.find(params[:subject_id]) @subject_module = SubjectModule.new @subject_module.standard_id = params[:standard][:standard_id] @subject_module.subject_id = params[:subject_id] respond_to do |format| if @subject_module.save format.html { redirect_to @subject and flash[:notice] = 'Standard assigned successfully.' } else format.html { redirect_to @subject and flash[:notice] = 'Standard not assigned.' } end end end def standard_module_detail @standard = Standard.find(params[:standard_id]) end private # Use callbacks to share common setup or constraints between actions. def set_subject @subject = Subject.find(params[:id]) end # Never trust parameters from the scary internet, only allow the white list through. def subject_params params.require(:subject).permit(:id, :org_id, :subject_id, :subject_name, :subject_desc, :subject_color, subject_modules_attributes: [:id, :org_id, :created_by, :subject_module_id, :subject_id, :module_number, :module_name, :_destroy, module_details_attributes: [:id, :module_detail_id, :subject_module_id, :module_detail_number, :description, :_destroy]]) end end
and my model as follows class Subject < ActiveRecord::Base validates :subject_name, :presence=>{:message=>" cannot be blank"}, :length=>{:maximum => 50, :message=>"should not be greater than 50 characters"}, :format => { :with => /\A[a-zA-Z0-9@_\.\-\+\s]*\z/, :message => "may only contain letters."}, :uniqueness=> { scope: :org_id } has_many :subject_modules, dependent: :destroy accepts_nested_attributes_for :subject_modules, reject_if: :all_blank, allow_destroy: true end class SubjectModule < ActiveRecord::Base belongs_to :subject has_many :module_details, dependent: :destroy accepts_nested_attributes_for :module_details, reject_if: :all_blank, allow_destroy: true end class ModuleDetail < ActiveRecord::Base belongs_to :subject_module end
| | How does "render template" works inside a controller? Posted: 29 Nov 2016 06:43 AM PST I created an article scaffold inside a namespace named 'admin', but because the visitors can't access the 'admin' part, I'm trying to render the view of the scaffold in a public controller, home#blog, so that the creation, the editing and the suppression of an article is made inside the admin part, but you can read the said article in the public part of the website However, after adding render template: 'home/blog' it doesn't seem to work, I still get redirected to admin/articles/<id>, but maybe I forgot to do something else or maybe I did something wrong Here's my article controller: class Admin::ArticlesController < ApplicationController before_action :set_admin_article, only: [:show, :edit, :update, :destroy] layout 'admin' # GET /admin/articles def index @admin_articles = Admin::Article.all end # GET /admin/articles/1 def show render template: 'home/blog' end # GET /admin/articles/new def new @admin_article = Admin::Article.new end # GET /admin/articles/1/edit def edit end # POST /admin/articles def create @admin_article = Admin::Article.new(admin_article_params) @admin_article.user = current_user if @admin_article.save redirect_to @admin_article, notice: 'Article was successfully created.' else render :new end end # PATCH/PUT /admin/articles/1 def update if @admin_article.update(admin_article_params) redirect_to @admin_article, notice: 'Article was successfully updated.' else render :edit end end # DELETE /admin/articles/1 def destroy @admin_article.destroy redirect_to admin_articles_url, notice: 'Article was successfully destroyed.' end private # Use callbacks to share common setup or constraints between actions. def set_admin_article @admin_article = Admin::Article.friendly.find(params[:id]) end # Only allow a trusted parameter "white list" through. def admin_article_params params.require(:admin_article).permit(:titre, :contenu) end end
What did I miss? Don't hesitate to ask for more details Thank you in advance | | Rails custom model method Posted: 29 Nov 2016 03:13 AM PST I have model user and I want create in model some method, call this method in helper, in controller Lists example and call this helper in view, but have error and don't know how to right write my model User and my method def include_current_user User.where.not(id: current_user.id) end
my controller Lists and helper def shared_users @users ||= User.include_current_user end helper_method :shared_users
and my views where call helper <%= f.collection_check_boxes(:users, shared_users, :id, :email)%>
heave error undefined method `include_current_user' for #<Class:0x007f389c649f98> Did you mean? included_modules
when I moved my method to self part like this: class << self def include_current_user where.not(id: current_user.id) end end
have error undefined local variable or method `current_user' for #<Class:0x007f38ac5d98c8> Did you mean? current_scope
current user this is helper in ssesion helper def current_user if (user_id = session[:user_id]) @current_user ||= User.find_by(id: user_id) elsif (user_id = cookies.signed[:user_id]) user = User.find_by(id: user_id) if user && user.authenticated?(cookies[:remember_token]) log_in user @current_user = user end end end
maybe nned add variable for my method include_current_user and get in action call like this def shared_users @users ||= User.include_current_user(current_user) end
and method in model class << self def include_current_user(user) where.not(id: user.id) end end
when created some query in action everything fine, like this def shared_users @users ||= User.where.not(id: current_user.id) end helper_method :shared_users
But I want create method in model, mayde more complicated, how do right way ? | | Rails has_many through save fail Posted: 29 Nov 2016 03:57 AM PST I've tried to save my model, but failed to save it. #starship.rb class Starship < ApplicationRecord has_many :crew_members,inverse_of: :starship accepts_nested_attributes_for :crew_members has_many :holodeck_programs,inverse_of: :starship accepts_nested_attributes_for :holodeck_programs end
#crew_member.rb class CrewMember < ApplicationRecord belongs_to :starship accepts_nested_attributes_for :starship has_many :holodeck_programs,through: :starship end
#holodeck_program.rb class HolodeckProgram < ApplicationRecord belongs_to :starship belongs_to :crew_member end
#controller def create #Starship,CrewMember and HolodeckProgram are new via CrewMember.new @crew_member = CrewMember.new(crew_member_params) @crew_member.save . . end . . private def crew_member_params params.require(:crew_member).permit(:name,:division,:starship_id, starship_attributes: [:name,:id, holodeck_programs_attributes: [:title,:starship_id,:crew_member_id]]) end
Because there is no crew_member_id in holodeck_programs_attributes, validation error happen. I can not use inverse_of: :crew_member because of through in crew_member.rb How can I handle it? | | application.html.haml not rendering on other views Posted: 29 Nov 2016 01:39 AM PST I am using rails 4.2.1 haml-rails jquery.turbolinks
application.html.haml is working fine on root but when I redirect to other view, application layout is not getting rendered because of which jquery is not working. I have made sure all my controllers inherit from ApplicationController class and application_controller inherits ActionController::Base application.js
//= require jquery //= require jquery.turbolinks //= require jquery_ujs //= require bootstrap-sprockets //= require jquery.minicolors //= require light-gallery //= require turbolinks //= require jquery.easing
application.html.haml
!!! %html %head %meta{:content => 'text/html; charset=UTF-8', 'http-equiv' => 'Content-Type'}/ %title CmsBuilder = stylesheet_link_tag 'application', media: 'all' = javascript_include_tag 'application' = csrf_meta_tags %body = render partial: 'layouts/header' = yield
| | Difference between selenium and capybara at Ruby on rails Testing? Posted: 29 Nov 2016 06:28 AM PST Selenium - Testing Framework
Capybara - Ruby Integration Testing Tool Could anyone explain, what is the actual difference Selenium and Capybara in terms of Ruby on Rails automation testing? | | Server side image caching with Cache-Control header value of no-cache Posted: 29 Nov 2016 01:11 AM PST Due to Gmail's insatiable desire to cache everything under the sun, in order to get some dynamic images to show I need to set the 'Cache-Control' header to 'no-cache'. There's about 8mb of images in total. Each email open is likely to result in about 20 requests. Estimated open count of about 500,000 people. So that's a fair few requests. My question is is there a way I could harness some sort of server-side cache, whilst disabling the client-side caching, in such a way that would allow me to handle a reasonable number of concurrent requests? |
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