| rails 5 db:reset not working Posted: 27 Aug 2016 08:13 AM PDT I want to reset the database of my rails 5 project, but the rails db:reset command is not working. errormessage: Permission denied @ unlink_internal - C:/sites5/dawnrebirth/db/development.sqlite3 Couldn't drop database 'db/development.sqlite3' rails aborted! Errno::EACCES: Permission denied @ unlink_internal - C:/sites5/dawnrebirth/db/development.sqlite3 bin/rails:4:in `require' bin/rails:4:in `<main>' Tasks: TOP => db:drop:_unsafe (See full trace by running task with --trace)
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| Rails: routes.rb and omitting the controller name Posted: 27 Aug 2016 08:12 AM PDT From Hartl's Rails Tutorial Book, some routes for static pages are automatically generated: Rails.application.routes.draw do get 'static_pages/home' get 'static_pages/help' root 'application#hello' end
Why do the 'home' and 'help' routes not have the controller#action?
E.g. get 'static_pages/home', to: 'static_pages_controller#home' The closest documentation of this I could find was in the the Rails Guides routing page's static segments section. |
| PostgresSQL dump from Ruby on Rails controller Posted: 27 Aug 2016 08:04 AM PDT I have implemented ruby on rails app and I want to have a very easy way to create save points and load them from the view of this app. For now, before I implement a huge undo-stack, I want to do a SQL dump into a file by a ruby on rails controller method and also load the dumped file back into the database. How can I perform this? |
| Remove <a> tag from rails "link_to" methdo Posted: 27 Aug 2016 07:58 AM PDT I need to remove <a> tag from rails link_to method. Here is current code and result: <%= link_to "ESP", :locale=>'es'%> <a href="/es/blog/crazy_page">ESP</p>
Here is my desired outcome: /es/blog/crazy_page
Reason I need this is so I could make "alternate" link tag in header for each language. Can't seem to find this anywhere. |
| Make Rails 5 API Read-Only Posted: 27 Aug 2016 07:48 AM PDT I want to make my Rails 5 API app to be read-only i.e. to accept only GET requests. Currently I've used scaffold to build the necessary routes & controllers. As the use case requires only reading info, I want the app to accept only GET requests. Another thing I want to know is how can update the data if the app is made read-only. |
| get popular records by id in rails Posted: 27 Aug 2016 06:20 AM PDT I have a table in my db that records the amount of times the page has been viewed by id. The table records the event id and what im ideally wanting to do is count how many times the event id shows. That way i can put the popular events on my homepage Basically it looks like this MY table: ID 1 1 1 2 2 3 3 3 3
This way the returning result would be something like this: 3 would be first, 1 would be second and 2 would be third. Then what i can do is each result would populate an each in the show on the view. Any ideas how to do this? Thanks! |
| unable to install Bundle in rubymine 7.1.4 Posted: 27 Aug 2016 05:58 AM PDT I am unable to run my project in rubymine. when i run command 'rails s', it show me "Run bundle install to install missing gems" then i install bundle then it show me an error "An error occurred while installing rmagick (2.15.4), and Bundler cannot continue." then i install "gem install rmagick -v '2.15.4". but nothing happend. it may be because my rubymine version default selected 2.3.0 but it should be 2.2.3. and i already selected in default setting -> ruby sdk and gems -> rvm ruby-2.2.3 but still i am unable to move to 2.2.3 Please help me to move 2.2.3 version. Thanks, Rahul |
| Rails: RSpec fails validations of model subclass Posted: 27 Aug 2016 05:11 AM PDT I have a Rails 5 setup where RSpec fails to check validations on model subclass. If I manually build the object in console I am able to see the errors which should prevent the record to be valid. The base model: class Article < ApplicationRecord belongs_to :author, class_name: User validates :author, presence: { message: "L'utente autore dell'articolo è obbligatorio." } validates :title, presence: { message: "Il titolo dell'articolo è obbligatorio." } end
The model which inherits from Article: class LongArticle < Article mount_uploader :thumbnail, LongArticleThumbnailUploader validates :excerpt, presence: { message: "L'estratto dell'articolo è obbligatorio." } validates :thumbnail, presence: { message: "L'immagine di anteprima dell'articolo è obbligatoria." } end
The factory for these models (FactoryGirl): FactoryGirl.define do factory :article do association :author, factory: :author title "Giacomo Puccini: Tosca" factory :long_article do type "LongArticle" excerpt "<p>Teatro alla Scala: immenso Franco Corelli.</p>" thumbnail { Rack::Test::UploadedFile.new(File.join(Rails.root, 'spec', 'support', 'images', 'unresized-long-article-thumbnail.jpg')) } end end end
This is the RSpec which doesn't work: require 'rails_helper' RSpec.describe LongArticle, type: :model do describe "is valid with mandatory fields" do it "should be valid with if all mandatory fields are filled" do article = FactoryGirl.create(:long_article) expect(article).to be_valid end it "should have an excerpt" do article = FactoryGirl.create(:long_article) article.excerpt = nil expect(article).not_to be_valid end it "should have the thumbnail" do article = FactoryGirl.create(:long_article) article.thumbnail = nil expect(article).not_to be_valid end end end
The first spec pass, the other two don't. I tried to test everything in the console, with the same values, and it works, meaning that the record is invalid as it should be. Is it possible that with RSpec the validations in the subclass won't work? |
| Cant verify CSRF token authenticity while creating json and html response Posted: 27 Aug 2016 05:33 AM PDT I am using my sessions controller to authenticate user through an API call or on the rails web app. The code works fine for the web app but for the api call I a getting cant verify CSRF token. I have set the
protect_from_forgery with: :null_session as null in my applications controller, but still getting this error. Any idea whats missing? class Drivers::SessionsController < Devise::SessionsController after_filter :set_csrf_headers, only: [:create, :destroy] respond_to :json, :html def create password = params[:driver][:password] email = params[:driver][:email] driver = email.present? && Driver.find_by(email: email) if driver.valid_password? password sign_in driver, store: true driver.reset_authentication_token! driver.save respond_to do |format| format.html {redirect_to drivers_path} format.json { render json: JSON.pretty_generate(JSON.parse(driver.to_json)), status: 200 } end #render json: driver, status: 200 else render json: { errors: "Invalid email or password" }, status: 422 end end protected def set_csrf_headers cookies['XSRF-TOKEN'] = form_authenticity_token if protect_against_forgery? end end
Here is the error: Started POST "/drivers/login.json?email=driver@test.com&password=[FILTERED]" for ::1 at 2016-08-27 08:11:03 -0400 Processing by Drivers::SessionsController#create as JSON Parameters: {"email"=>"apidriver@test.com", "password"=>"[FILTERED]"} Can't verify CSRF token authenticity Completed 500 Internal Server Error in 8ms (ActiveRecord: 0.0ms)
My Applications controller file class ApplicationController < ActionController::Base #skip_before_action :verify_authenticity_token before_filter :set_paper_trail_whodunnit before_action :configure_permitted_parameters, if: :devise_controller? respond_to :html, :json # Prevent CSRF attacks by raising an exception. # For APIs, you may want to use :null_session instead. protect_from_forgery with: :null_session #protect_from_forgery with: :exception def configure_permitted_parameters devise_parameter_sanitizer.for(:account_update) { |u| u.permit(:password, :password_confirmation, :current_password, :first_name, :last_name, :phone_number, :description) } devise_parameter_sanitizer.for(:sign_up) { |u| u.permit(:email, :password, :first_name, :last_name) } end def after_sign_in_path_for(resource) if current_driver drivers_path #your path end if current_user new_booking_path end end end
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| RSpec slow when Rails use another Rails DB Posted: 27 Aug 2016 08:08 AM PDT I got a strange situation on RSpec when Rails testing.
Normaly by using spring RSpec file taken time is very fast.
But, when using another Rails DB RSpec file taken time is 2 or 3 seconds.
My Rails app use another Rails app database.yml to use the same db.
Why is RSpec so slow? and How do I make RSpec fast? I confirmed this is happened at Rails4 and Rails5. Environment
DB PostgreSQL 9.4.5 This is my code. class Test def self.test 'test' end end
This is my test code. require 'rails_helper' RSpec.describe Test do describe "Test.test" do it "test" do expect(Test.test).to eq 'test' end end end
This is my database.yml. Two rails app use same yml file. default: &default adapter: postgresql encoding: unicode pool: 5 development: <<: *default database: qserver_development test: <<: *default database: qserver_test
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| Rails "alternate" link tag for every language Posted: 27 Aug 2016 07:02 AM PDT I can't find how to display full url for every language in HEAD of my html page. This is for "alternate" link tag. Here is my wrong current solution: <link rel="alternate" href="/es" hreflang="es-es" /> <link rel="alternate" href="/ru" hreflang="ru-ru" />
And here is my desired outcome that I can't figure how to make: <link rel="alternate" href="/es/blog/i_like_coding" hreflang="es-es" /> <link rel="alternate" href="/ru/blog/i_like_coding" hreflang="ru-ru" />
I tried to use this code, but can't strip away <a> tag. from href itself: <%= link_to "hi", :locale => 'ru' %>
result for my unsuccesul try: <a href="/ru/blog/i_like_coding">hi</a>
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| How to insert data in join table based on HABTM association rails 4 Posted: 27 Aug 2016 05:34 AM PDT Hi I am trying to insert data in join table linked with my 2 other models. The problem is that I am unable to insert data in join table. Here is my code: restaurant.rb module Refinery module Hebel class Restaurant < Refinery::Core::BaseModel validates :title, :presence => true, :uniqueness => true belongs_to :avatars, :class_name => '::Refinery::Image' has_many :restaurants_wines has_many :wines, :through => :restaurants_wines # To enable admin searching, add acts_as_indexed on searchable fields, for example: # # acts_as_indexed :fields => [:title] end end end
wine.rb module Refinery module Hebel class Wine < Refinery::Core::BaseModel validates :title, :presence => true, :uniqueness => true belongs_to :avatars, :class_name => '::Refinery::Image' has_many :restaurants_wines has_many :restaurants, :through => :restaurants_wines # To enable admin searching, add acts_as_indexed on searchable fields, for example: # # acts_as_indexed :fields => [:title] end end end
join table - restaurant_wine: module Refinery module Hebel class RestaurantWine < Refinery::Core::BaseModel belongs_to :wine belongs_to :restaurant # To enable admin searching, add acts_as_indexed on searchable fields, for example: # # acts_as_indexed :fields => [:title] end end end
May I need to do anything in forms or what I need to do in order to insert data in join table? I have a form of add wine and add restaurant as well. I want to add id of wine in join table with restaurant id Could anyone please explain? |
| Ruby special usage of CASE Statement Posted: 27 Aug 2016 04:50 AM PDT I've got some piece of code: variable = ... case variable when ~:new ':new method!' when ~:lenght ':size method!' end
For o = [] it should go to size case and return ':size method!' For o = String should return ':new method' And this part I know how to implement(my solution below) But it should work with any kind of object. And this part I don't know how to implement. I don't know what is wrong in my code and is it correct? My code: module AbstractClass def new; false end; def size; false end; end class Class include AbstractClass end class Array include AbstractClass def size; true end; end class String include AbstractClass def new; true end; end class Symbol include AbstractClass alias ~ to_proc end
Thank you for help! |
| Configure Mailbox to receive mails from mailgun Posted: 27 Aug 2016 02:45 AM PDT |
| account.rb:17:in `withdraw': undefined method `-' for nil:NilClass (NoMethodErro r) Posted: 27 Aug 2016 04:47 AM PDT I am getting error while executing form terminal. withdraw : undefined method '-'
I do not understand why. I have tried editing with sublime and notepad++. class Account def initialize(name, balance, phone_no) @name = name @balance = balance @phone_no = phone_no end def deposit(amount) @amount += amount end def withdraw(amount) @amount -= amount end def display() puts "Name: " + @name puts "Phone number: " + @phone_no.to_s puts "Balance: " + @balance.to_s end def transfer(amount, target_account) @balance -= amount target_account.deposit(amount) end def status return @balance end end
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| how to get attached entity via put async android client in rails Posted: 27 Aug 2016 02:44 AM PDT I am sending a image from android app to server using put method. I am using the async Android library. i attach a entity to put request like client.put(Application.getInstance(), slot.getPutUrl(), fileEntity, CONTENT_TYPE, new AsyncHttpResponseHandler() {
i am trying to process this image using paperclip in rails in django we can access this file using request.FILES['file'], how can we access this file and pass it on to paperclip using rails ? |
| Why is my rails engine not being initialized within my host application? Posted: 27 Aug 2016 02:32 AM PDT I have a rails engine defined as Blog::Engine. I've included it into another rails application (my host application), by specifying it as a gem dependency, and providing the path. gem 'sizzle-chisel', path: '../sizzle-chisel'
I run bundle install and everything looks good. Then when I run the server, I receive: uninitialized constant Blog::Engine
This occurs from within my routes.rb file: mount Blog::Engine => "/blog"
Here's the output of bundle install: ... Using turbolinks 2.5.3 Using devise 3.5.6 Using sizzle-chisel 0.0.1 from source at `../sizzle-chisel` Using yaml_db 0.4.0 ...
sizzle-chisel is my engine. So, from looking at the bundler output, I concur that it looks fine so far...
So why does it break when I run my host application? If there is an error with my engine, why is it not explaining that to me at some point? It's simply saying "uninitialized constant", which gives me zero clues as to what the problem might be. |
| Postgres performance issue in my Rails app Posted: 27 Aug 2016 03:19 AM PDT I'm using derailed_benchmark gem to track my app performance: $ PATH_TO_HIT="/api/v2/feed.json?per_page=30&page=1&category_name=Feed" USER_SERVER=webrick TEST_COUNT=20 bundle exec derailed exec perf:stackprof ================================== Mode: cpu(1000) Samples: 20708 (0.42% miss rate) GC: 3219 (15.54%) ================================== TOTAL (pct) SAMPLES (pct) FRAME 4720 (22.8%) 4694 (22.7%) block in ActiveRecord::ConnectionAdapters::PostgreSQLAdapter#exec_cache 542 (2.6%) 502 (2.4%) ActiveSupport::Inflector#underscore 413 (2.0%) 413 (2.0%) ActiveSupport::PerThreadRegistry#instance 364 (1.8%) 364 (1.8%) ActiveRecord::QueryMethods#validate_order_args 309 (1.5%) 309 (1.5%) block in ActiveSupport::Inflector#apply_inflections 282 (1.4%) 282 (1.4%) ThreadSafe::NonConcurrentCacheBackend#[] 257 (1.2%) 257 (1.2%) ActiveRecord::Relation#initialize 410 (2.0%) 235 (1.1%) ActiveRecord::Relation#initialize_copy 229 (1.1%) 229 (1.1%) ActiveRecord::Delegation::DelegateCache#relation_delegate_class 212 (1.0%) 212 (1.0%) block in ActiveRecord::Relation::Merger#merge 562 (2.7%) 198 (1.0%) ActiveRecord::QueryMethods#preprocess_order_args 190 (0.9%) 189 (0.9%) ActiveRecord::Core::ClassMethods#arel_table 181 (0.9%) 181 (0.9%) JSON#parse 175 (0.8%) 175 (0.8%) ActiveRecord::Relation#reset 165 (0.8%) 165 (0.8%) ActiveRecord::Attribute#initialize 153 (0.7%) 153 (0.7%) ActiveRecord::Relation#values 151 (0.7%) 151 (0.7%) ActiveRecord::Inheritance::ClassMethods#base_class 333 (1.6%) 151 (0.7%) ActiveRecord::Scoping::Default::ClassMethods#build_default_scope 144 (0.7%) 144 (0.7%) Skylight::Normalizers::ActiveRecord::SQL#extract_rust 142 (0.7%) 142 (0.7%) ActiveRecord::QueryMethods#joins_values 138 (0.7%) 138 (0.7%) block (4 levels) in Class#class_attribute 195 (0.9%) 133 (0.6%) ActiveRecord::DynamicMatchers#respond_to? 158 (0.8%) 121 (0.6%) ActiveRecord::QueryMethods#where_values= 125 (0.6%) 115 (0.6%) ActiveRecord::Reflection::AssociationReflection#klass 113 (0.5%) 113 (0.5%) ActiveRecord::Result#initialize_copy 110 (0.5%) 110 (0.5%) Arel::Table#initialize 193 (0.9%) 109 (0.5%) ActiveRecord::ConnectionAdapters::PostgreSQL::Utils#extract_schema_qualified_name 114 (0.6%) 106 (0.5%) Arel::Nodes::Binary#hash 104 (0.5%) 104 (0.5%) ActiveRecord::QueryMethods#extending_values 99 (0.5%) 99 (0.5%) ActiveRecord::QueryMethods#order_values
How can I fix the "block in ActiveRecord::ConnectionAdapters::PostgreSQLAdapter#exec_cache" performance issue? UPDATE After running same command with "config.middleware.delete "ActiveRecord::QueryCache" in my config/application.rb the results are: ================================== Mode: cpu(1000) Samples: 21116 (0.42% miss rate) GC: 2213 (10.48%) ================================== TOTAL (pct) SAMPLES (pct) FRAME 5619 (26.6%) 5600 (26.5%) block in ActiveRecord::ConnectionAdapters::PostgreSQLAdapter#exec_cache 2268 (10.7%) 2268 (10.7%) block in ActiveRecord::ConnectionAdapters::PostgreSQLAdapter#exec_no_cache 421 (2.0%) 383 (1.8%) ActiveSupport::Inflector#underscore 304 (1.4%) 304 (1.4%) ActiveSupport::PerThreadRegistry#instance 294 (1.4%) 294 (1.4%) block in ActiveSupport::Inflector#apply_inflections 270 (1.3%) 270 (1.3%) ThreadSafe::NonConcurrentCacheBackend#[] 245 (1.2%) 245 (1.2%) ActiveRecord::Relation#initialize 229 (1.1%) 229 (1.1%) ActiveRecord::QueryMethods#validate_order_args 219 (1.0%) 219 (1.0%) ActiveRecord::Delegation::DelegateCache#relation_delegate_class 207 (1.0%) 207 (1.0%) ActiveRecord::Inheritance::ClassMethods#base_class 285 (1.3%) 188 (0.9%) ActiveRecord::Relation#initialize_copy 184 (0.9%) 184 (0.9%) ActiveRecord::Attribute#initialize 181 (0.9%) 179 (0.8%) ActiveRecord::Core::ClassMethods#arel_table 175 (0.8%) 175 (0.8%) Skylight::Normalizers::ActiveRecord::SQL#extract_rust 165 (0.8%) 165 (0.8%) block in ActiveRecord::Relation::Merger#merge 147 (0.7%) 147 (0.7%) block (4 levels) in Class#class_attribute 374 (1.8%) 145 (0.7%) ActiveRecord::QueryMethods#preprocess_order_args 113 (0.5%) 113 (0.5%) ActiveRecord::Relation#values 112 (0.5%) 112 (0.5%) ActiveRecord::QueryMethods#joins_values 171 (0.8%) 109 (0.5%) ActiveRecord::ConnectionAdapters::PostgreSQL::Utils#extract_schema_qualified_name 99 (0.5%) 99 (0.5%) Arel::Table#initialize 97 (0.5%) 97 (0.5%) ActiveRecord::Relation#reset 271 (1.3%) 96 (0.5%) ActiveRecord::Scoping::Default::ClassMethods#build_default_scope 107 (0.5%) 95 (0.4%) ActiveRecord::Reflection::AssociationReflection#klass 93 (0.4%) 93 (0.4%) ActiveRecord::QueryMethods#order_values 125 (0.6%) 93 (0.4%) ActiveRecord::QueryMethods#where_values= 88 (0.4%) 88 (0.4%) ActiveRecord::Reflection::ThroughReflection#active_record 106 (0.5%) 87 (0.4%) Skylight::Trace#start 81 (0.4%) 81 (0.4%) ActiveRecord::QueryMethods#check_cached_relation 80 (0.4%) 80 (0.4%) ActiveRecord::QueryMethods#where_values
UDPATE 2 After running the query with "wall time" mode and not "cpu time" mode, this is the results: ================================== Mode: wall(1000) Samples: 41424 (1.92% miss rate) GC: 3648 (8.81%) ================================== TOTAL (pct) SAMPLES (pct) FRAME 4780 (11.5%) 4718 (11.4%) block in ActiveRecord::ConnectionAdapters::PostgreSQLAdapter#exec_cache 2783 (6.7%) 2783 (6.7%) block in ActiveRecord::ConnectionAdapters::PostgreSQLAdapter#exec_no_cache 1088 (2.6%) 1088 (2.6%) ActiveSupport::PerThreadRegistry#instance 934 (2.3%) 934 (2.3%) ThreadSafe::NonConcurrentCacheBackend#[] 1031 (2.5%) 926 (2.2%) ActiveSupport::Inflector#underscore 739 (1.8%) 739 (1.8%) block in ActiveSupport::Inflector#apply_inflections 626 (1.5%) 626 (1.5%) ActiveRecord::Relation#initialize 589 (1.4%) 589 (1.4%) ActiveRecord::Delegation::DelegateCache#relation_delegate_class 577 (1.4%) 577 (1.4%) ThreadSafe::NonConcurrentCacheBackend#get_or_default 549 (1.3%) 549 (1.3%) ActiveRecord::Attribute#initialize 497 (1.2%) 497 (1.2%) block in ActiveRecord::Relation::Merger#merge 497 (1.2%) 497 (1.2%) ActiveRecord::QueryMethods#validate_order_args 702 (1.7%) 424 (1.0%) ActiveRecord::Relation#initialize_copy 419 (1.0%) 417 (1.0%) ActiveRecord::Core::ClassMethods#arel_table 384 (0.9%) 384 (0.9%) ActiveRecord::Inheritance::ClassMethods#base_class 383 (0.9%) 383 (0.9%) block (4 levels) in Class#class_attribute 358 (0.9%) 358 (0.9%) Skylight::Normalizers::ActiveRecord::SQL#extract_rust 329 (0.8%) 329 (0.8%) ActiveRecord::Base.logger 321 (0.8%) 321 (0.8%) rescue in Net::BufferedIO#rbuf_fill 315 (0.8%) 315 (0.8%) ActiveRecord::Core#update_attributes_from_transaction_state 314 (0.8%) 314 (0.8%) ActiveRecord::ConnectionAdapters::AbstractAdapter#type_map 795 (1.9%) 298 (0.7%) ActiveRecord::QueryMethods#preprocess_order_args 284 (0.7%) 284 (0.7%) Arel::Table#initialize 279 (0.7%) 279 (0.7%) ActiveRecord::Relation#values 278 (0.7%) 278 (0.7%) ActiveRecord::Relation#reset 734 (1.8%) 264 (0.6%) ActiveRecord::Scoping::Default::ClassMethods#build_default_scope 263 (0.6%) 263 (0.6%) ActiveRecord::QueryMethods#joins_values 394 (1.0%) 258 (0.6%) ActiveRecord::ConnectionAdapters::PostgreSQL::Utils#extract_schema_qualified_name 15323 (37.0%) 249 (0.6%) ActiveRecord::Querying#find_by_sql 257 (0.6%) 246 (0.6%) ActiveRecord::Reflection::AssociationReflection#klass
I'm building my feed.json using index.json.jbuilder, this is how it looks: json.battles @battles do |battle| if (battle.products.size == 2) battle_results = battle.calculate_results json.(battle, :id) vote = battle.votes.find_by(user_id: current_user.id) json.voted vote.present? if vote json.product_voted vote.product.id == battle.products[0].id ? "first" : "second" end json.mybattle battle.try(:user).try(:id) == current_user.id json.user do username = "" if (battle.try(:user).try(:nickname).present?) username = battle.try(:user).try(:nickname) else username = battle.try(:user).try(:name).try(:downcase).try(:delete,' ') end json.username username json.user_id battle.try(:user_id) json.profile_image battle.try(:user).try(:image) || "" json.full_name battle.try(:user).try(:name) || "" end json.votes battle_results[:votes] json.created_at time_ago_in_words(battle.created_at) + " ago" json.title battle.title json.first_product do first_product = battle.products[0] json.id first_product.id json.voted first_product.votes.find_by(user_id: current_user.id).present? json.percentage battle_results[:percentage_product_one] # json.percentage_after_voting battle_results[:percentage_after_voting_product_one] json.name first_product.name json.price SearchFunctions.convert_currency(first_product.price.to_s, current_user.currency_code, 'USD') # json.price first_product.price.to_s json.url first_product.url if first_product.images["sub"] && first_product.images["sub"].kind_of?(Array) first_product.images["sub"] = first_product.images["sub"].first(10) end json.images first_product.images json.manufacturer first_product.manufacturer json.description first_product.description json.is_user_saved first_product.saved_products.find_by(user_id: current_user.id).present? json.saved_count first_product.saved_products.length end json.second_product do second_product = battle.products[1] json.id second_product.id json.voted second_product.votes.find_by(user_id: current_user.id).present? json.percentage battle_results[:percentage_product_two] # json.percentage_after_voting battle_results[:percentage_after_voting_product_two] json.name second_product.name json.price SearchFunctions.convert_currency(second_product.price.to_s, current_user.currency_code, 'USD') # json.price second_product.price.to_s json.url second_product.url if second_product.images["sub"] && second_product.images["sub"].kind_of?(Array) second_product.images["sub"] = second_product.images["sub"].first(10) end json.images second_product.images json.manufacturer second_product.manufacturer json.description second_product.description json.is_user_saved second_product.saved_products.find_by(user_id: current_user.id).present? json.saved_count second_product.saved_products.length end end end
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| Loading configuration and route.rb twice and produces error Posted: 27 Aug 2016 02:14 AM PDT Rails.application.initialize! command in environment.rb loads the files including route.rb twice when executing test using rspec. It works when executing it in production environment and route file is loaded exactly once. What may be the issue. I am using gemset group :development,:test do gem "rails-erd" gem 'letter_opener' gem 'spring' gem 'faker' gem 'pry-rails' gem 'pry-byebug' gem 'rspec-rails' gem 'factory_girl_rails' end
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| PG::UndefinedFunction: ERROR LIKE operator Posted: 27 Aug 2016 02:48 AM PDT In my Rails project i get this error, when i trying to make rating. Error: PG::UndefinedFunction: ERROR: operator does not exist: integer ~~ integer LINE 1: ...dbacks" WHERE "feedbacks"."user_id" = $1 AND (rating LIKE 5) ^ HINT: No operator matches the given name and argument type(s). You might need to add explicit type casts. : SELECT COUNT(*) FROM "feedbacks" WHERE "feedbacks"."user_id" = $1 AND (rating LIKE 5) Controller Code: unless @user.feedbacks.count == 0 @rating = ((@user.feedbacks.where("rating LIKE 5").count*5 + @user.feedbacks.where("rating LIKE 4").count*4 + @user.feedbacks.where("rating LIKE 3").count*3 + @user.feedbacks.where("rating LIKE 2").count*2 +@user.feedbacks.where("rating LIKE 1").count).to_f / @user.feedbacks.count).round(2) else @rating = 0 end
Can someone help me please? |
| Validate search form in without model Posted: 27 Aug 2016 01:55 AM PDT I have this form in rails, in my view new.html.erb <%= form_for( @rent , html: { class: 'form-horizontal' }) do |f| %> <div class="form-group"> <label for="" class="col-lg-2 col-md-3 col-sm-3 col-xs-3 control-label">year:</label> <div class="col-lg-3 col-md-3 col-sm-3 col-xs-3"> <%= f.text_field :year, class: 'form-control' %> </div> <div class="col-lg-2 col-md-3 col-sm-3 col-xs-3"> <%= f.submit 'Buscar', :class =>"btn btn-sm btn-info btn-flat" %> </div> <div class="clearfix"></div> </div> <% end %> <%= render 'shared/error_messages', object: @rent %>
In my controller I have this class RentsController < ApplicationController def new @rent = RentSearch.new end private def search_params params.require(:year).permit(:year) end end
In my model, had this code: class RentSearch include ActiveModel::Validations include ActiveModel::Conversion extend ActiveModel::Naming attr_accessor :year validates :year, presence: true validates :year, length: { is: 4 } end
With this code I get this error undefined method `persisted?' for # But I made some modifications and not show error, but when submit not display any error and form is empty, I don't know how can solve this. What is the best way to create a form in rails without model access to database and passing all validations to the controller and verify. |
| Why is the 'rake routes' command also running the rake db:seed command? Posted: 27 Aug 2016 07:55 AM PDT I have some seed data in the seeds.rb file. I load the seed data using rake db:seed. It load correctly. I enter some new data into my application all works fine. Then I run the 'rake routes' command to check out the routes and I see that it runs the rake db:seed command because I can see the output from the seeds.rb file. Here is my seeds.rb file: #Seeding the Role table # p "Removing existing #{Role.all.count} roles" Role.destroy_all p "Creating 3 roles" [:proofreader, :admin, :super_admin].each do |role| Role.create( name: role ) end p "Should have created 3 Roles, roles created: #{Role.all.count}" #Seed the Employee table #create super_admin employee p "Removing existing #{Employee.all.count} employees" Employee.destroy_all p "Creating one employee" super_admin = Employee.new(first_name: "Mitchell", last_name: "Gould", email: "mitchell@provenword.com", paypal_email: "go_mitchell@yayoo.ca", skype_id: "chellgouda", mobile: 66816927867, bachelor_degree: "Science", password: "chokta400",postal_code: "50100",address: "211/195 Soi 27, Sriwalee Klong Chun, T. Mae Hia, A. Muang", province_state: "Chiangmai", country: "Thailand", status: "active", os: "mac", role_ids: [Role.last.id]) super_admin.save! p "Should have created #{Employee.all.count} employee with name #{Employee.first.first_name}."
Here is the output from rake routes: Running via Spring preloader in process 17957 "Removing existing 3 roles" "Creating 3 roles" "Should have created 3 Roles, roles created: 3" "Removing existing 2 employees" "Creating one employee" "Should have created 1 employee with name Mitchell." Prefix Verb URI Pattern Controller#Action new_employee_session GET /employees/sign_in(.:format) devise/sessions#new employee_session POST /employees/sign_in(.:format) devise/sessions#create destroy_employee_session GET /employees/sign_out(.:format) devise/sessions#destroy employee_password POST /employees/password(.:format) devise/passwords#create new_employee_password GET /employees/password/new(.:format) devise/passwords#new edit_employee_password GET /employees/password/edit(.:format) devise/passwords#edit PATCH /employees/password(.:format) devise/passwords#update PUT /employees/password(.:format) devise/passwords#update cancel_employee_registration GET /employees/cancel(.:format) employees/registrations#cancel employee_registration POST /employees(.:format) employees/registrations#create new_employee_registration GET /employees/sign_up(.:format) employees/registrations#new edit_employee_registration GET /employees/edit(.:format) employees/registrations#edit PATCH /employees(.:format) employees/registrations#update PUT /employees(.:format) employees/registrations#update DELETE /employees(.:format) employees/registrations#destroy new_client_session GET /clients/sign_in(.:format) devise/sessions#new client_session POST /clients/sign_in(.:format) devise/sessions#create destroy_client_session GET /clients/sign_out(.:format) devise/sessions#destroy client_password POST /clients/password(.:format) devise/passwords#create new_client_password GET /clients/password/new(.:format) devise/passwords#new edit_client_password GET /clients/password/edit(.:format) devise/passwords#edit PATCH /clients/password(.:format) devise/passwords#update PUT /clients/password(.:format) devise/passwords#update cancel_client_registration GET /clients/cancel(.:format) devise/registrations#cancel client_registration POST /clients(.:format) devise/registrations#create new_client_registration GET /clients/sign_up(.:format) devise/registrations#new edit_client_registration GET /clients/edit(.:format) devise/registrations#edit PATCH /clients(.:format) devise/registrations#update PUT /clients(.:format) devise/registrations#update DELETE /clients(.:format) devise/registrations#destroy quotation_requests GET /quotation_requests(.:format) quotation_requests#index POST /quotation_requests(.:format) quotation_requests#create new_quotation_request GET /quotation_requests/new(.:format) quotation_requests#new edit_quotation_request GET /quotation_requests/:id/edit(.:format) quotation_requests#edit quotation_request GET /quotation_requests/:id(.:format) quotation_requests#show PATCH /quotation_requests/:id(.:format) quotation_requests#update PUT /quotation_requests/:id(.:format) quotation_requests#update DELETE /quotation_requests/:id(.:format) quotation_requests#destroy show_dashboard GET /dashboard(.:format) dashboard#show root GET /
How can I stop Rails from running rake db:seed when I run rake routes? |
| Rails - ajax response handling Posted: 27 Aug 2016 01:42 AM PDT I am sending data by using ajax call to 3rd party api to see if the card supports installment, then I get a response in the payment#new action, I just do not know how to show response on the view. ajax call; $.ajax({ type: "GET", url: "/payments/new", dataType: "json", data: {card_digit}, success: function(data) {}, error: function(jqXHR) {} });
payments#new action
def new ... ... uri = URI.parse("https://...") https = Net::HTTP.new(uri.host,uri.port) https.use_ssl = true req = Net::HTTP::Post.new(uri.path, @headers) req.body = @body.to_json res = https.request(req) puts "Response #{res.code} #{res.message}: #{res.body}" end
Then here it returns res.body as json object, I would like to show this on the view I have tried to assign to a variable like @return then use it on the view but no chance, I tried with respond to block but could not manage to do it either. EDIT Thank you for the answer!, But now I get error Encoding::UndefinedConversionError ("\xC4" from ASCII-8BIT to UTF-8) res.body returns; {"bankId":"13","bankName":"...","cardFamilyId":"..","cardFamilyName":"...","cardThreeDSecureMandatory":"0","merchantThreeDSecureMandatory":"0","result":"1","serviceProvider":"2","supportsInstallment":"1","type":"1"}
I wrote; render json: { res_body: res.body }
and console.log(data) in the success function why would it happen? EDIT I added render json: { res_body: JSON.parse(res.body) }
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| Rails - how to search the console where there is a has_one association Posted: 27 Aug 2016 01:23 AM PDT I'm trying to figure out what I need to do to use associations in my views. There is something wrong where the association is a has_one relationship. I have models called Project and Package. The associations are: Project has_one :package Package belongs_to :project
In the console, I can write: p = Project.where(id: 26)
That gives me a project. Then I write: p.package
I expect that to give me the associated package. Instead I get a long error message that starts with these lines: NoMethodError: undefined method `package' for #<Project::ActiveRecord_Relation:0x007fb275c17698>
I don't know what this message means. I'm especially confused, because I can write: p = Package.find_by(project_id:26)
That gives me the right package. p = Package.find_by(project_id:26) Package Load (1.8ms) SELECT "packages".* FROM "packages" WHERE "packages"."project_id" = $1 LIMIT 1 [["project_id", 26]] => #<Package id: 25, project_id: 26, created_at: "2016-08-18 23:16:06", updated_at: "2016-08-24 05:11:11", has_gallery: nil>
Why can't I find the package by writing p.package in the console? I have seen this post but i haven't understood the gist of what's going on. |
| Getting Unexpected token with react-rails es6 Posted: 27 Aug 2016 01:17 AM PDT Rails 5.0.0.1 Ruby 2.3.1
I would of thought this would have been a presents issue but then again, it works for the person who created the tutorial Im following in conjunction with this. So, nothing fancy: Application.js //= require jquery //= require jquery_ujs //= require turbolinks //= cable //= require_self //= require react_ujs window.$ = window.jQuery = global.$ = require('jquery'); var React = window.React = global.React = require('react'); var ReactDOM = window.ReactDOM = global.ReactDOM = require('react-dom'); require('./components');
Components.js require( 'babel-polyfill' ); // Manually add components to window and global // so that react_ujs and react-server can find them and render them. window.Home = global.Home = require("./components/Home.js").default // same issue if use *.es6.jsx
Home.js (or es6.jsx) import React from 'react'; import ReactDOM from 'react-dom'; class Home extends React.Component { render() { return ( <div className="form-control"> Home baby </div> ) } } export default Home;
Gemfile gem "browserify-rails" gem 'react-rails
config/application.rb # Configure Browserify to use babelify to compile ES6 config.browserify_rails.commandline_options = "-t [ babelify --presets [ es2015 ] ]" unless Rails.env.production? # Work around sprockets+teaspoon mismatch: Rails.application.config.assets.precompile += %w(spec_helper.js) # Make sure Browserify is triggered when # asked to serve javascript spec files config.browserify_rails.paths << lambda { |p| p.start_with?(Rails.root.join("spec/javascripts").to_s) } end
npm npm install browserify browserify-incremental babelify babel-preset-es2015 --save
The Unexpected token refers to the first <div>, why? |
| Rails4 : How to assign a nested resource id to another resource Posted: 27 Aug 2016 01:08 AM PDT Model: order & material
order has_many materials
material belongs_to order
material & user
material has_may users
user belongs_to material
Assume I create a material with id = 20 , order_id = 1
In materials_controller update action, I want to assign material id to specific users.In materials_controller update action I did it like this
if @material.update_attributes(material_params) if @material.ready == true @users = User.where("is_manager = 't'") @users.each do |user| user.material_id = @material.id end end end
But attribute material_id in user did not get changed after the action. Anybody could tell me what cause the failure to pass material id to user ? |
| Rails - has_many only display per :id Posted: 27 Aug 2016 05:25 AM PDT I currently have installed DHTMLxScheduler following the below guide http://dhtmlx.com/blog/use-dhtmlxscheduler-ruby-rails-part-1-tutorial/ I've been able to successfully create events to my postgresql db although I had to create my own EventsController. I've currently got the calendar appearing within a project 'show' page and would like to only display the events associated to the project. I've created an association with events belong_to :projects and has_many: events my problem is i'm not sure how I can limit this... below is my code Events Controller class EventsController < ApplicationController def data events = Event.all render :json => events.map {|event| { :id => event.id, :start_date => event.start_date.to_formatted_s(:db), :end_date => event.end_date.to_formatted_s(:db), :text => event.text }} end def db_action mode = params["!nativeeditor_status"] id = params["id"] start_date = params["start_date"] end_date = params["end_date"] text = params["text"] project_id = self.project.find(:id) case mode when "inserted" event = Event.create :start_date => start_date, :end_date => end_date, :text => text, :project_id => project_id tid = event.id when "deleted" Event.find(id).destroy tid = id when "updated" event = Event.find(id) event.start_date = start_date event.end_date = end_date event.text = text event.project_id = project_id event.save tid = id end render :json => { :type => mode, :sid => id, :tid => tid, } end end
Event Model class Event < ApplicationRecord belongs_to :project end
Projects Model class Project < ApplicationRecord has_many :events has_attached_file :logo, styles: { medium: "300x300>", thumb: "100x100>" }, :default_url => "***", :s3_protocol => :https validates_attachment_content_type :logo, content_type: /\Aimage\/.*\Z/ end
Projects Controller class ProjectsController < ApplicationController before_action :set_project, only: [:show, :edit, :update, :destroy] # GET /projects # GET /projects.json def index @projects = Project.all end # GET /projects/1 # GET /projects/1.json def show end # GET /projects/new def new @project = Project.new end # GET /projects/1/edit def edit end # POST /projects # POST /projects.json def create @project = Project.new(project_params) respond_to do |format| if @project.save format.html { redirect_to @project, notice: 'Project was successfully created.' } format.json { render :show, status: :created, location: @project } else format.html { render :new } format.json { render json: @project.errors, status: :unprocessable_entity } end end end # PATCH/PUT /projects/1 # PATCH/PUT /projects/1.json def update respond_to do |format| if @project.update(project_params) format.html { redirect_to @project, notice: 'Project was successfully updated.' } format.json { render :show, status: :ok, location: @project } else format.html { render :edit } format.json { render json: @project.errors, status: :unprocessable_entity } end end end # DELETE /projects/1 # DELETE /projects/1.json def destroy @project.destroy respond_to do |format| format.html { redirect_to projects_url, notice: 'Project was successfully destroyed.' } format.json { head :no_content } end end private # Use callbacks to share common setup or constraints between actions. def set_project @project = Project.find(params[:id]) end # Never trust parameters from the scary internet, only allow the white list through. def project_params params.require(:project).permit(:status, :completed, :description, :priority, :hospital, :name, :code, :capex, :pm, :itpm, :ffe, :start, :pc, :commission, :budget, :logo, :state, :budget_url, :events) end end
config/routes.rb match "events/data", :to => "events#data", :as => "data", :via => "get" match "events/db_action", :to => "events#db_action", :as => "db_action", :via => "get"
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| Swapping delivery and address solidus and removing payment steps Posted: 26 Aug 2016 11:38 PM PDT i wanted to setup cash on delivery and in store pick as my shipping options. So when the user selects the in store pick up the address is set to store location. these are the changes i made to order_decorator.rb Spree::Order.class_eval do remove_checkout_step :payment checkout_flow do go_to_state :delivery go_to_state :address go_to_state :confirm go_to_state :complete end end
when i checkout after adding some items i get unshippable items
do i have to change the code in checkout.rb file are there any good guides on solidus Thank you |
| Rename column, but ThinkingSphinx::SphinxError: unknown column: 'shop_address_lookup' Posted: 26 Aug 2016 11:51 PM PDT Using Rails 4, Thinking Sphinx 3.2.0. I recently renamed a column from for_search to address_lookup. The Shop model has the column address_lookup, and I have Country which is associated to Shop model. Here's my Country index: ThinkingSphinx::Index.define :state, with: :real_time do indexes name indexes shop_address_lookup ... end
I removed the development.sphinx.conf, and ran ts:regenerate. Indexing Shop worked fine, but when it tried to index Country, it kept throwing the following error: Generating index files for country_core rake aborted! ThinkingSphinx::SphinxError: unknown column: 'shop_address_lookup' - REPLACE INTO country_core (id, `sphinx_internal_class_name`, `name`, `country_status`, `shop_address_lookup` ... /Users/abc/.rbenv/versions/2.3.1/bin/bundle:23:in `load' /Users/abc/.rbenv/versions/2.3.1/bin/bundle:23:in `<main>' Innertube::Pool::BadResource: Innertube::Pool::BadResource /Users/abc/.rbenv/versions/2.3.1/bin/bundle:23:in `load' /Users/abc/.rbenv/versions/2.3.1/bin/bundle:23:in `<main>' ThinkingSphinx::QueryExecutionError: unknown column: 'shop_address_lookup' ... /Users/abc/.rbenv/versions/2.3.1/bin/bundle:23:in `load' /Users/abc/.rbenv/versions/2.3.1/bin/bundle:23:in `<main>' Mysql2::Error: unknown column: 'shop_address_lookup' /Users/abc/.rbenv/versions/2.3.1/bin/bundle:23:in `load' /Users/abc/.rbenv/versions/2.3.1/bin/bundle:23:in `<main>' Tasks: TOP => ts:regenerate => ts:generate (See full trace by running task with --trace)
I only renamed the column, and already updated my index file. What can I do to fix this? Note: When I rename the index from shop_address_lookup to shop_for_search again, without changing the actual column name, the index works fine. |
| How to include a Module into Helper and call it with a namespace in a view in Ruby on Rails Posted: 26 Aug 2016 11:09 PM PDT So, guys, for example, I have the module N1::M1 and M1 inside folder lib in my project, and I want use it in a view, like this: M1.method_name, but when I define ActionView::CompiledTemplates.include N1 inside ApplicationHelper module, all methods called with a namespace M1 the Rails automatically add the N1 namespace, but not all M1 modules have the N1 namespace. What do I must for use only the M1 as namespace? |
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