| Add attachment to email using action Mailer - Rails 4 Posted: 06 Apr 2016 06:58 AM PDT I have book model which has title, page_no and description. There is another model Image. class Book < ActiveRecord::Base has_many :images, dependent: :destroy end class Image < ActiveRecord::Base belongs_to :book end
I have used paperclips to upload the images.I need to create a button in book's show page which should send all the book's attributes along with images in email.For this I have configured the action mailer as: rails g mailer BookMailer
and created app/views/book_mailer/booklist_email.html.erb <!DOCTYPE html> <html> <head> <meta content='text/html; charset=UTF-8' http-equiv='Content-Type' /> </head> <body> <h1>Welcome to Student Library</h1> <p> Book: <%= @book.title %> </p> <p> Page Number: <%= @book.page_number %> </p> <p> Description <%= @book.description %> </p> <p> Active <%= @book.active %> </p> <p> Please visit us again !! </p> </body> </html>
Also I placed button in book's show page as <%= content_tag(:button, "Send Email", :type=>:submit)%>
Now how should I trigger the email after clicking button from book show pages which should send email to any user where email should be given at the time of pressing send email button from book show page. Let me know if I need to provide more information. I am confused how should I proceed. Please help |
| Staging and production environment on heroku Posted: 06 Apr 2016 06:55 AM PDT I want to create staging environment on heroku of an existing app. I want to know two things 1) Is it using same database of production or not? If yes then either it requires some settings or not? 2) Is the url's of both staging and production environments change or not? Please don't give links |
| How to access the Mailchimp file-manager/files API endpoint using Gibbon Posted: 06 Apr 2016 06:58 AM PDT I'm using Gibbon to access the Mailchimp API. I've no problem using... gibbon = Gibbon::Request.new(api_key: "valid-api-key") lists = gibbon.lists.retrieve
And getting back the lists stored in the account. However I'm struggling with the file-manager/files API endpoint. Trying... files = gibbon.file-manager.files
throws a undefined local variable or method 'manager' for main:Object (NameError) error. Which suggests that the - sign is not being correctly parsed. And... files = gibbon.filemanager.files
returns a 404 error as you'd expect. So my question : Is this a problem with the Gibbon Gem or is there another way to access the file-manager/files endpoint? |
| Conditional validators - client_side_validations Posted: 06 Apr 2016 06:49 AM PDT I'm using the gem 'client_side_validations' for my Rails project and am having trouble getting a conditional validation to display on my form. Basically, if someone selects the US from a countries dropdown, it should validate the presence of a US State. Here is some relevant code model - profile.rb validates :state, presence: { message: "State can't be blank" }, if: american? def american? country == 'US' end
view - haml file = profile_fields.select :state, options_for_select(STATES, profile_fields.object.state), { include_blank: true }, { class: 'form-control }
According to the Gem documentation (https://github.com/DavyJonesLocker/client_side_validations), conditional validators are turned off by default, but you can force this behavior in the form. example <%= f.text_field :name, validate: true %>
I've tried this in my form, but no such luck. Can anyone help me out? If this is out of the scope for this gem, we may just have to roll our own, which will be fine. Just wanted to check on the possibility of this. |
| Ruby in Rails www subdomain redirect Posted: 06 Apr 2016 06:53 AM PDT Here is my Ruby on Rails code to redirect a request from https://example.com to https://www.example.com: class ApplicationController < ActionController::Base before_filter :add_www_subdomain private def add_www_subdomain if Rails.env.production? unless /^www/.match(request.host) redirect_to("#{request.protocol}www.#{request.host_with_port}",status: 301) end end end end
Now the issue is, when someone lands at https://example.com/product/abc they are being redirected to https://www.example.com supposedly, they should go to https://www.example.com/product/abc. Is there any trick for this? Thanks |
| Bundler Incompatible Posted: 06 Apr 2016 06:46 AM PDT I have installed latest version for ruby and rails but test install is giving error . Please could you help me resolve this issue im using windows 10 Fetching gem metadata from https://rubygems.org/....... Fetching gem metadata from https://rubygems.org/.. Resolving dependencies... Bundler could not find compatible versions for gem "activesupport": In snapshot (Gemfile.lock): activesupport (=4.2.5.1) Running bundle update will rebuild your snapshot from scratch, using only the gems in your Gemfile, which may resolve the conflict. |
| Devise custom mailer using Sendgrid Posted: 06 Apr 2016 06:27 AM PDT I'd like to use a Sendgrid template to send users their welcome email when they signup for my site. I've checked out: Devise's How-to Use customer mailer and already done the first few steps, however, I'm stuck on where to put the confirmation_instructions method since I need to be able to put in some custom information and substitution variables to pass through. I'm also using the devise generated controller controllers/users/... This is what I have so far: Custom Class: models/devise_mailer.rb class DeviseMailer < Devise::Mailer helper :application include Devise::Controllers::UrlHelpers default template_path: 'devise/mailer' end
config/initializers/devise.rb added: config.mailer = "DeviseMailer" Now from here, I'm supposed to do something like below, but I don't know where to put that. Do I need to make a custom controller? If so, how do I make sure new user registrations use the method?: def confirmation_instructions(record, token, opts={}) headers["Custom-header"] = "Bar" super end
Am I way off here? |
| How do I avoid 401 (Unauthorized) when creating a new API endpoint for Solidus / Spree? Posted: 06 Apr 2016 06:38 AM PDT I'm doing a PUT "/api/shipments/H10372375236/ready_for_pickup", but that stops in Spree::BaseController#authenticate_user. My PUT request does not contain any X-Spree-Token header as required by BaseController#api_key This is the code for my button: <%= form_tag(spree.api_ready_for_pickup_path(shipment), { method: "PUT", remote: true, id: "admin-ship-shipment" }) do %> <%= submit_tag Spree.t(:ready_for_pickup), class: "ship-shipment-button" %> <% end %>
This is my routes: Spree::Core::Engine.routes.draw do namespace :api, defaults: { format: 'json' } do put '/shipments/:id/ready_for_pickup' => 'shipments#ready_for_pickup', as: :ready_for_pickup end end Rails.application.routes.draw do mount Spree::Core::Engine, :at => '/' end
rake routes available as a Gist here. I have created an API key for the current user in the admin interface. How do I make sure the PUT request contain the missing X-Spree-Token?
|
| Docker compose up fails with `require': cannot load such file -- rack/handler/rails (LoadError) Posted: 06 Apr 2016 06:41 AM PDT This is my Dockerfile: FROM rails:4.2.4 MAINTAINER Brena Monteiro <me@monteirobrena.com> RUN mkdir -p ~/myapp COPY . ~/myapp COPY Gemfile ~/myapp/Gemfile COPY Gemfile ~/myapp/Gemfile.lock WORKDIR ~/myapp RUN bundle install CMD rails s -b 0.0.0.0
And my docker-compose.yml: web: build: . command: rails s -p 3000 -b '0.0.0.0' ports: - '3000:8080' volumes: - .:/Users/monteirobrena/myapp
If I run docker run the Docker is start correctly: docker run -v ./:/Users/monteirobrena/docker/myapp -p 3000:8080 myapp
But when I run docker-compose up I receive this error: ➜ app git:(add-docker) ✗ docker-compose up myRecreating app_web_1 myAttaching to app_web_1 web_1 | /usr/local/bundle/gems/rack-1.6.4/lib/rack/handler.rb:78:in `require': cannot load such file -- rack/handler/rails (LoadError) web_1 | from /usr/local/bundle/gems/rack-1.6.4/lib/rack/handler.rb:78:in `try_require' web_1 | from /usr/local/bundle/gems/rack-1.6.4/lib/rack/handler.rb:16:in `get' web_1 | from /usr/local/bundle/gems/rack-1.6.4/lib/rack/server.rb:290:in `server' web_1 | from /usr/local/bundle/gems/railties-4.2.3/lib/rails/commands/server.rb:125:in `print_boot_information' web_1 | from /usr/local/bundle/gems/railties-4.2.3/lib/rails/commands/server.rb:75:in `start' web_1 | from /usr/local/bundle/gems/railties-4.2.3/lib/rails/commands/commands_tasks.rb:80:in `block in server' web_1 | from /usr/local/bundle/gems/railties-4.2.3/lib/rails/commands/commands_tasks.rb:75:in `tap' web_1 | from /usr/local/bundle/gems/railties-4.2.3/lib/rails/commands/commands_tasks.rb:75:in `server' web_1 | from /usr/local/bundle/gems/railties-4.2.3/lib/rails/commands/commands_tasks.rb:39:in `run_command!' web_1 | from /usr/local/bundle/gems/railties-4.2.3/lib/rails/commands.rb:17:in `<top (required)>' web_1 | from /usr/src/app/bin/rails:9:in `require' web_1 | from /usr/src/app/bin/rails:9:in `<top (required)>' web_1 | from /usr/local/bundle/gems/spring-1.6.4/lib/spring/client/rails.rb:28:in `load' web_1 | from /usr/local/bundle/gems/spring-1.6.4/lib/spring/client/rails.rb:28:in `call' web_1 | from /usr/local/bundle/gems/spring-1.6.4/lib/spring/client/command.rb:7:in `call' web_1 | from /usr/local/bundle/gems/spring-1.6.4/lib/spring/client.rb:28:in `run' web_1 | from /usr/local/bundle/gems/spring-1.6.4/bin/spring:49:in `<top (required)>' web_1 | from /usr/local/bundle/gems/spring-1.6.4/lib/spring/binstub.rb:11:in `load' web_1 | from /usr/local/bundle/gems/spring-1.6.4/lib/spring/binstub.rb:11:in `<top (required)>' web_1 | from /usr/src/app/bin/spring:13:in `require' web_1 | from /usr/src/app/bin/spring:13:in `<top (required)>' web_1 | from bin/rails:3:in `load' web_1 | from bin/rails:3:in `<main>' web_1 | Exiting myapp_web_1 exited with code
Any ideas? |
| How create recently message like twitter [on hold] Posted: 06 Apr 2016 05:20 AM PDT i have table message. i need to display recently message like twitter! i use this code but don't working : Message.where('user_id = ? OR user_two_id = ?',@hyperuser.id,@hyperuser.id)
this returned multi record! |
| rails : how to add dynamic radio_buttons Posted: 06 Apr 2016 06:13 AM PDT I have two radio buttons. In the first radio buttons, i have two choices: - Men - Women In the second radio buttons, i have product items. if men selected: i want to show items with "M" code,
if women selected: i want to show items with "W" code.
Here is my actual code: .col-md-offset-2.col-md-6 = simple_form_for(@product, :html => { :role => 'form'}) do |f| = f.error_notification .form-inputs = f.label :name = f.text_field :name, :autofocus => true, class: 'form-control' hr = f.label :gender_id, "Gender" br = f.collection_radio_buttons :gender_id, Gender.all, :id, :title do |b| .checkbox-margin label = b.radio_button = b.label hr = f.label :category_id, "Category" br = f.collection_radio_buttons :category_id, Category.all, :id, :title do |b| .checkbox-margin label = b.radio_button = b.label .form-actions = f.button :submit
|
| Swagger `Unable to autoload constant` Posted: 06 Apr 2016 06:02 AM PDT Swagger docs are failing to build, with the error: LoadError: Unable to autoload constant ThingsController, expected /path/to/my/app/controllers/things_controller.rb to define it
The weird thing is, the class is defined there, and the app is working: only swagger fails. things_controller.rb contains
class ThingsController < ActionController::Base swagger_controller :things, "Things" swagger_api :index do summary "Returns list of things" end end
Any ideas why Swagger would be unable to find a functioning class in the file where it is defined? |
| rails: login singup(registration) and admin forms Posted: 06 Apr 2016 04:57 AM PDT I am new to ruby on rails? I want a rails application it contain login form, registration form, order page and admin form.. user order a product it update on admin page. example: user have 3 products 1.laptop 2. phone 3.speakers, if user ordered phone, it must display on admin page like x user order phone. please help me, I am beginner, please help me |
| Rails 4 - Use Script Variable as Button Value Posted: 06 Apr 2016 05:11 AM PDT I am using a jquery ui slider (http://jqueryui.com/slider/) inside my ruby erb code. $( "#slider" ).slider({ range:'min', value:<%= @last_change %>, min: 0.01, max: 98, step: 0.01, slide: function( event, ui ) { $( "#slider-value" ).html( ui.value ); } }); $( "#slider-value" ).html( $('#slider').slider('value') );
The challenge is put a button using this value updated, with this script variable #slider-value. At the moment I can show this variable to on my erb (outside JS) with the following: <p>Spinner has a value of <span id="slider-value"></span></p>
However my question is, how could I use this value on the following button: <%= link_to "My Button", {:controller => "my_controller", :action => "my_action", :value => **slider_value_from_js** }%>
I read and I understand that js is client side and server can't handle client things => many references to use complex ajax, partials and stuff, however I don't think that's the problem here since form requests / buttons always use client inputs and that's just that what I need. |
| Exclude part of a string when testing in rails Posted: 06 Apr 2016 04:47 AM PDT How would I take a test statement that tests for two equal strings, such as, if @current_lesson.code == @current_course.answer, and exclude some parts of the answer. So, if I want to make the user write a <p> tag with anything in it, how would I make it correct, as long as they have the <p> tag? |
| How to make rails root change daily? Posted: 06 Apr 2016 04:53 AM PDT I am building a scheduling platform for a client. One requirement is that the root be the show page for today's schedule. The schedules for other days all need their own show pages, too. I know how to write a query that will find today's schedule, but I'm having a hard time figuring out how to connect that with my routes file. Here's what I have so far--right now I'm trying to just get it to render the show page with today's schedule. I could build a custom view for this, but I'm trying to not repeat myself, and it really would be exactly the same view as a regular show. In the schedules controller: def show @schedule = Schedule.find(params[:id]) #this is actually done in a :set_schedule before_action callback, but I'm show it it here for clarity. end def today @schedule = Schedule.find_by_date("#{Time.now.year}-#{Time.now.month}-#{Time.now.day}") if @schedule render 'schedules/show' #How do I tell it to render the show page for @schedule here?? else render 'welcome#index' end end
When I try to hit myapp.com/schedules/today that throws an error (there is no schedule with id = today). I imagine that once I get this working, I can just do this in my routes.rb: root 'schedules#today'
I want to know--is this the right approach? If so, can you offer some help on my custom controller action? If not, how would you do it? |
| Application with dynamically/custom fields Posted: 06 Apr 2016 04:35 AM PDT I'm having trouble with a project, here's the deal: An application where Users can login and store Contacts, with name and email. Also, the User must have the option to store CustomFields for its Contacts (text area, combobox), allowing them to have CustomData, e.g. fields called Street and City. Here's how I'm thinking it should be done and what I already did, if you know what I should do now or have any advice on how to do in another way, I would appreciate. https://gist.github.com/jonatasbaldin/906673980f847b30ec2cf6951dcb136e Thanks. |
| Rails / Creating a Blog: Validation for comments (belong to a post) does not work Posted: 06 Apr 2016 06:54 AM PDT I'm trying to build a simple blog, where a post has many comments and the comments are displayed on the posts#show page. I have two bugs which I cannot figure out: - Validations for my comments are not working. The name and the content of a comment should be present. Whenever I try to submit an "empty" comment I got an error message: "NoMethodError in CommentsController#create: undefined method `empty?' for nil:NilClass". I suspect that in my comments_controller.rb I have to render a different page in my create action (see below for code)?
- Whenever I create a new post, there is always an empty "delete" link belonging to an empty comment (which no one has created. It was created automatically?). This "delete" link links to http://localhost:3000/posts/[post_id]/comments (note that after "/comments" there is no comment_id like "/comment/3/" e.g.)
routes.rb: resources :posts do resources :comments end
app/models/post.rb class Post < ActiveRecord::Base has_many :comments, dependent: :destroy end
app/models/comment.rb class Comment < ActiveRecord::Base validates :name, presence: true validates :content, presence: true belongs_to :post end
app/controllers/comments_controller.rb class CommentsController < ApplicationController before_action :set_post def create @comment = @post.comments.build(comment_params) if @comment.save flash[:success] = "Comment saved!" redirect_to post_path(@post) else flash[:alert] = "Something went wrong!" render root_path # I suspect here is an error? end end def destroy @comment = @post.comments.find(params[:id]) @comment.destroy flash[:success] = "Comment deleted" redirect_to post_path(@post) end private def comment_params params.require(:comment).permit(:name, :email, :content) end def set_post @post = Post.find(params[:post_id]) end end
app/views/posts/show.html.erb Here is the problem that a "Delete" link shows up whenever I create a new post. This "Delete" link belongs to a comment which is empty and strangely created automatically? <% unless @post.comments.empty? %> # I suspect here is an error? <% @post.comments.each do |comment| %> <p><%= comment.name %></p> <p><%= comment.content %></p> <p><%= link_to "Delete", [comment.post, comment], method: :delete, data: { confirm: "Are you sure?" } %></p> <% end %> <% end %>
app/views/posts/new.html.erb <%= form_for(@post) do |f| %> <% if @post.errors.any? %> <div id="error_explanation"> <h2><%= @post.errors.count %> Fehler:</h2> <ul> <% @post.errors.full_messages.each do |msg| %> <li><%= msg %></li> <% end %> </ul> </div> <% end %> <div class="image-box"> <p><%= f.file_field :image%></p> </div> <div class="title-box"> <p><%= f.label :title, "Titel" %></p> <p><%= f.text_field :title, class: "title-field"%></p> </div> <div class="content-box"> <p><%= f.label :content, "Inhalt" %></p> <p><%= f.text_area :content, class: "content-field"%></p> </div> <p><%= f.submit %></p> <% end %>
|
| How to validate overlapping times in Rails Posted: 06 Apr 2016 06:07 AM PDT I have an Event model that has form time and to time in my schedule app and I want to validate the overlapping time before saving. My view image as followings; Departure date: Dec 31, 2016 Day1 07:00 - 07:20 event1 10:30 - 11:30 event2 15:40 - 16:10 event3 [add event button] Day2 08:15 - 09:05 event4 12:08 - 13:04 event5 14:00 - 14:25 event6 [add event button] [save schedule button]
from time and to time can be changed and added at the same time.
What I'd like to do is to display error if I try to add (or change to) 07:05 - 07:30 for Day1, for example, 13:50 - 14:30 for Day2 and so on. Although I tried some codes with overlap, between, cover with referring to this post or this post and so on, I haven't be able to apply them to my code. schema.rb create_table "events", force: :cascade do |t| t.time "from" t.time "to" t.integer "room_id" ... create_table "rooms", force: :cascade do |t| t.integer "schedule_id" ... create_table "schedules", force: :cascade do |t| t.integer "user_id" t.date "departure_date" ...
Give the following models: class Schedule < ActiveRecord::Base belongs_to :user has_many :rooms, inverse_of: :schedule accepts_nested_attributes_for :rooms, allow_destroy: true ... class Room < ActiveRecord::Base belongs_to :schedule, inverse_of: :rooms has_many :events, inverse_of: :room accepts_nested_attributes_for :events, allow_destroy: true ... class Event < ActiveRecord::Base belongs_to :room, inverse_of: :events has_one :schedule, autosave: false, through: :room ...
_schedule_form.html.erb <%= render 'shared/error_messages', object: f.object %> <%= f.label :title %> <%= f.text_field :title, class: 'form-control' %> <br> <%= f.label :departure_date %> <div class="input-group date" id="datetimepicker"> <%= f.text_field :departure_date, :value => (f.object.departure_date.strftime('%b/%d/%Y') if f.object.departure_date), class: 'form-control' %> <span class="input-group-addon"> <span class="glyphicon glyphicon-calendar"></span> </span> </div> <script type="text/javascript"> $(function () { $('#datetimepicker').datetimepicker({format:'MMM-DD-YYYY'}); }); </script> <br> <div id="room"> <%= f.simple_fields_for :rooms do |a| %> <div id="room_<%= a.object.object_id %>"> <p class="day-number-element-selector"><b>Day <%= a.index.to_i + 1 %></b></p> <%= a.simple_fields_for :events do |e| %> <span class="form-inline"> <p> <%= e.input :from, label: false %> - <%= e.input :to, label: false %> </p> </span> <%= e.input :title, label: false %> <% end %> </div> <%= a.link_to_add "Add event", :events, data: {target: "#room_#{a.object.object_id}"}, class: "btn btn-primary" %> <%= a.input :room %> <% end %> </div>
It would be appreciated if you could give me how to check and display error. EDIT! event.rb class Event < ActiveRecord::Base before_save :assign_date belongs_to :room, inverse_of: :events has_one :schedule, autosave: false, through: :room validate :cannot_overlap_another_event scope :in_range, -> range { where('(start BETWEEN ? AND ?)', range.from, range.to) } scope :exclude_self, -> id { where.not(id: id) } def cannot_overlap_another_event range = Range.new from, to overlaps = Event.exclude_self(id).in_range(range) overlap_error unless overlaps.empty? end def overlap_error errors.add(:overlap_error, 'There is already an event scheduled in this hour!') end
|
| Rails model test: ERROR: null value in column [..] violates not-null constraint Posted: 06 Apr 2016 05:11 AM PDT I'm building a Rails 4 (4.2.6) application and right now I want to specify some Minitest-tests for a 'place' model representing Points of interests getting printed on a Leaflet-Map. As DB we're using Postgres via 'pg' gem (which shall not be relevant for the test anyhow). Unfortunately even a simple test like the following results in an error when executing bundle exec rake test:models class PlaceTest < ActiveSupport::TestCase def setup @place = Place.new(latitude: 12, longitude: 52, name: 'foo', categories: 'bar') end test 'valid place is valid' do assert @place.valid? end
The error is the following PlaceTest#test_valid_place_is_valid: ActiveRecord::StatementInvalid: PG::NotNullViolation: ERROR: null value in column "latitude" violates not-null constraint DETAIL: Failing row contains (980190962, null, null, 2016-04-06 11:16:08, 2016-04-06 11:16:08, null, null). : INSERT INTO "places" ("created_at", "updated_at", "id") VALUES ('2016-04-06 11:16:08', '2016-04-06 11:16:08', 980190962)
I have no clue how to interpret the error, since latitude is not null at all. Obviously it can't be a database related error since the instance is not being written into the db. Nevertheless the error message somehow has this sound. The schema.rb file looks like this: ActiveRecord::Schema.define(version: 20160403170121) do enable_extension "plpgsql" create_table "descriptions", force: :cascade do |t| t.integer "place_id" t.string "language" t.text "text" t.datetime "created_at", null: false t.datetime "updated_at", null: false end add_index "descriptions", ["place_id"], name: "index_descriptions_on_place_id", using: :btree create_table "places", force: :cascade do |t| t.float "latitude", null: false t.float "longitude", null: false t.datetime "created_at", null: false t.datetime "updated_at", null: false t.string "name", null: false t.string "categories", null: false end add_foreign_key "descriptions", "places" end
By the way: I can perfectly instantiate a place object within the rails console and check if .valid?. I'd be glad if someone could help me interpret that error message, thanks in advance Edit: I have not implemented any validations in my model file (actually sth I want to persue test-driven, only the tests don't work properly...) |
| Rails refactor walking user through several forms Posted: 06 Apr 2016 04:32 AM PDT I have a feature to walkthrough users filling in several forms. I have a controller called walkthrough with one action :build that accepts one param :step, then based on the step - checks whether there is a record (to create new or edit)
- renders the appropriate form(the forms are submitted via ajax to their appropriate controllers)
- based on the record render appropriate buttons (prev, next, skip)
- shows a summary at the end
The issue is my controller is getting very fat. Is there a better way to walkthrough a new user through several forms. Note: this is not a wizard that breaks one form into several. |
| Data not deleted from the sqlite3 table Posted: 06 Apr 2016 04:27 AM PDT I am new in ruby. I want to delete record. But unable to delete. Please check my code - ruby_win_sources/index.html.erb <table border="1" cellpadding="1" cellspacing="1" width="100%"> <thead> <tr> <th>Name</th> <th>Author</th> <th>Url</th> <th colspan="3">Action</th> </tr> </thead> <tbody> <% @ruby_win_sources.each do |ruby_win_source| %> <tr> <td><%= ruby_win_source.name %></td> <td><%= ruby_win_source.author %></td> <td><%= ruby_win_source.url %></td> <td><%= link_to 'Show', ruby_win_source %></td> <td><%= link_to 'Edit', edit_ruby_win_source_path(ruby_win_source) %></td> <td><%= link_to 'Destroy', ruby_win_source, method: :destroy, data: { confirm: 'Are you sure?' } %></td> </tr> <% end %> </tbody> </table>
ruby_win_sources_controller.rb class RubyWinSourcesController < ApplicationController before_action :set_ruby_win_source, only: [:show, :edit, :update, :destroy] # GET /ruby_win_sources # GET /ruby_win_sources.json def index @ruby_win_sources = RubyWinSource.all end # GET /ruby_win_sources/1 # GET /ruby_win_sources/1.json def show end # GET /ruby_win_sources/new def new @ruby_win_source = RubyWinSource.new end # GET /ruby_win_sources/1/edit def edit end # POST /ruby_win_sources # POST /ruby_win_sources.json def create @ruby_win_source = RubyWinSource.new(ruby_win_source_params) respond_to do |format| if @ruby_win_source.save format.html { redirect_to @ruby_win_source, notice: 'Ruby win source was successfully created.' } format.json { render :show, status: :created, location: @ruby_win_source } else format.html { render :new } format.json { render json: @ruby_win_source.errors, status: :unprocessable_entity } end end end # PATCH/PUT /ruby_win_sources/1 # PATCH/PUT /ruby_win_sources/1.json def update respond_to do |format| if @ruby_win_source.update(ruby_win_source_params) format.html { redirect_to @ruby_win_source, notice: 'Ruby win source was successfully updated.' } format.json { render :show, status: :ok, location: @ruby_win_source } else format.html { render :edit } format.json { render json: @ruby_win_source.errors, status: :unprocessable_entity } end end end # DELETE /ruby_win_sources/1 # DELETE /ruby_win_sources/1.json def destroy @ruby_win_source.destroy respond_to do |format| format.html { redirect_to ruby_win_sources_url, notice: 'Ruby win source was successfully destroyed.' } format.json { head :no_content } end end private # Use callbacks to share common setup or constraints between actions. def set_ruby_win_source @ruby_win_source = RubyWinSource.find(params[:id]) end # Never trust parameters from the scary internet, only allow the white list through. def ruby_win_source_params params.require(:ruby_win_source).permit(:name, :author, :url) end end
Delete confirm box not opening. Please help me Edit - routes.rb Rails.application.routes.draw do resources :ruby_win_sources end
|
| How to set subdomain on heroku Posted: 06 Apr 2016 03:53 AM PDT I have an app which have multiple sub domains and work locally fine. manager.daycare.no:3000/ worker.daycare.no:3000/ daycare.no:3000/ admin.daycare.no:3000/ parent.daycare.no:3000/
When I deploy it on heroku these sub-domains doesn't work. Heroku app url is https://polar-harbor-19809.herokuapp.com/ . How I set these subdomains on heroku and please tell me what will be url after subdomain urls? |
| copy one posgres databse to another databse with same table rails app Posted: 06 Apr 2016 04:03 AM PDT Currently I have multiple commerce store in my rail app using spree and database postures I want to copy all databases into single one with their foreign keys lets suppose if database A has a product with primary key 1 and database B has also a product with key 1 it should be auto incremented in tables as well as in all associated tables. I want to some rake task. desc "Import data bases" task import_data: :environment do bigbios = ActiveRecord::Base.establish_connection( adapter: "postgresql", encoding: "unicode", database: "databse_a", pool: "5", username: "postgres", password: "postgres" ) Spree::Product.all end`
It loads product of databse A but how to load other products from second database and copy with auto incremented primary key and put this key in associated tables? |
| Find nearest cafe and airports of a given latitude rails Posted: 06 Apr 2016 03:45 AM PDT I have latitude and longitude of an address and I want to search all the airports, Railway stations, Bus Stand and cafe etc popular places. I'm using these gems in my application : gem 'geocoder' gem 'gmaps4rails' gem 'geokit-rails
Now Please suggest me how can I solve this problem? |
| Weird behavior of has_one after upgrade to Rails 4.2.6 Posted: 06 Apr 2016 04:52 AM PDT I have two models: class User < ActiveRecord::Base belongs_to :group, dependent: :destroy validates :login, presence: true before_create :add_group private def add_group create_group(name: login) end end
and class Group < ActiveRecord::Base has_one :user end
When I try to create user, I get SystemStackError: stack level too deep. So I changed add_group callback like this: def add_group create_group(name: login) unless group end
Now, it saves the user and properly set group_id, but create also second empty record of User without validation. SQL: >> u = User.create!(login: "foo") (0.7ms) BEGIN SQL (2.2ms) INSERT INTO "groups" ("name", "created_at", "updated_at") VALUES ($1, $2, $3) RETURNING "id" [["name", "foo"], ["created_at", "2016-04-06 10:09:52.981954"], ["updated_at", "2016-04-06 10:09:52.981954"]] Group Load (1.2ms) SELECT "groups".* FROM "groups" WHERE "groups"."id" = $1 LIMIT 1 [["id", 1453]] SQL (2.0ms) INSERT INTO "users" ("login", "created_at", "updated_at", "group_id") VALUES ($1, $2, $3, $4) RETURNING "id" [["login", "foo"], ["created_at", "2016-04-06 10:09:52.923926"], ["updated_at", "2016-04-06 10:09:52.923926"], ["group_id", 1453]] SQL (1.4ms) INSERT INTO "users" DEFAULT VALUES RETURNING "id" (9.1ms) COMMIT
The last INSERT INTO users table is odd. I can't figure out why this happens... I found two solutions: class Group < ActiveRecord::Base has_one :user, autosave: false ##OR## has_one :usr, class_name: "User" # has_one :user, class_name: "User" works weird too end
but it doesn't convince me. What can be wrong? at Rails 4.0 everything works well. UPDATE 1 ok, I found 2 other solutions: class User < ActiveRecord::Base belongs_to :group, dependent: :destroy validates :login, presence: true before_create :add_group private def add_group self.group = Group.create(name: login) # OR # assign_attributes(group: Group.create(name: login)) end end class Group < ActiveRecord::Base has_one :user end
but still I don't understand why it's behave so strange... especially this extra empty record and fix by has_one :usr, class_name: "User" |
| Do an action after Sidekiq jobs are completed without Sidekiq pro Posted: 06 Apr 2016 03:30 AM PDT Here is my problem. I have a 'Job' model which has many 'transactions'. I have a Transaction processor worker, which takes ID of the transaction and proceeds to process all the transactions of this job. Eg: job.transactions.each do |transaction| TransactionWorker.perform_async(transaction.id) end
My requirement is that, I should intimate the user who created this job with an email, after all the transactions are complete. The transaction model has a field called 'status' which is updated in the worker itself, when it is complete. transactions.status = "complete" transaction.save
The problem is that since Sidekiq is treaded, multiple treads are processing transactions at once. I am checking for job.transactions.to_be_processed.count == 0
for sending the mail. Since it is treaded, I have been receving more than 1 mail per job. Questions: What should be done to make this error proof, without using sidekiq pro? I thought of moving the job completion check to after_update callback of transaction model. Will that work? |
| uninitialized constant ActionController::Caching::Sweeping (NameError) Posted: 06 Apr 2016 04:18 AM PDT its an api based application using rails 4.1.13 gem 'rails-observers' app/config/initializers/base_sweeper.rb class BaseSweeper < ActionController::Caching::Sweeper observe ActiveRecord::Base def after_save(object) # ..... call to version class for record saving purpose end end
application.rb config.autoload_paths += %W(#{config.root}/services #{config.root}/lib)
app/services/version.rb class Version #some method to store records end
ChannelController.rb classs Api::V1::ChannelsController < Api::V1::BaseController cache sweeper :base_sweeper, only: [:create, :update] end #channel.rb has_many :channel_logs #channel_log.rb belongs_to :channel development.rb config.active_record.observers = :base_sweeper
I got an error uninitialized constant basesweeper? |
| activeadmin : wrong number of arguments (0 for 1) on member_action Posted: 06 Apr 2016 04:04 AM PDT i'm building my RoR app admin interface using active admin, got an exception i'm stuck on trying to set up custom actions : ActiveAdmin.register Deal do [:cancel, :release].each do |event| member_action event , method: :patch do |deal| deal.send :"#{event}!" redirect_to admin_deal_path(deal), notice: "Your event was #{deal.current_state}" end action_item event, only: :show do link_to event, url_for(action: event), method: :patch end end end
The event links display well on the page but when clicking on one of them got the following exception : ArgumentError (wrong number of arguments (0 for 1)): app/admin/deal.rb:45:in `block (3 levels) in <top (required)>' app/admin/deal.rb:45:in `block (3 levels) in <top (required)>' actionpack (4.2.6) lib/action_controller/metal/implicit_render.rb:4:in `send_action' actionpack (4.2.6) lib/abstract_controller/base.rb:198:in `process_action' actionpack (4.2.6) lib/action_controller/metal/rendering.rb:10:in `process_action' actionpack (4.2.6) lib/abstract_controller/callbacks.rb:20:in `block in process_action'
activesupport (4.2.6) lib/active_support/callbacks.rb:117:in call' activesupport (4.2.6) lib/active_support/callbacks.rb:117:incall' activesupport (4.2.6) lib/active_support/callbacks.rb:555:in block (2 levels) in compile' activesupport (4.2.6) lib/active_support/callbacks.rb:505:incall' activesupport (4.2.6) lib/active_support/callbacks.rb:505:in call' activesupport (4.2.6) lib/active_support/callbacks.rb:92:inrun_callbacks' activesupport (4.2.6) lib/active_support/callbacks.rb:778:in _run_process_action_callbacks' activesupport (4.2.6) lib/active_support/callbacks.rb:81:inrun_callbacks' actionpack (4.2.6) lib/abstract_controller/callbacks.rb:19:in process_action' actionpack (4.2.6) lib/action_controller/metal/rescue.rb:29:inprocess_action' actionpack (4.2.6) lib/action_controller/metal/instrumentation.rb:32:in block in process_action' activesupport (4.2.6) lib/active_support/notifications.rb:164:inblock in instrument' activesupport (4.2.6) lib/active_support/notifications/instrumenter.rb:20:in instrument' activesupport (4.2.6) lib/active_support/notifications.rb:164:ininstrument' actionpack (4.2.6) lib/action_controller/metal/instrumentation.rb:30:in process_action' actionpack (4.2.6) lib/action_controller/metal/params_wrapper.rb:250:inprocess_action' activerecord (4.2.6) lib/active_record/railties/controller_runtime.rb:18:in process_action' actionpack (4.2.6) lib/abstract_controller/base.rb:137:inprocess' actionview (4.2.6) lib/action_view/rendering.rb:30:in `process' Line 46 of admin/deal.rb is the line where member_action is called, it seems the activeadmin method is overided somehow somewhere or there is something else obvious i don't see... Any idea where it could come from ? amon other gems I'm using cancancan, devise, and responders. Thanks in advance **UPDATED : full stacktrace ** |
| What is the Rails way to do this - shared controllers/views or separate? Posted: 06 Apr 2016 03:05 AM PDT I have 2 types of users in an app I have just picked up that I need to enhance. Admins, who can do everything
RoomAdmins, who can only manage anything to do with their Room - like adding Parents, who belong to the Room.
For example, RoomAdmins when they sign up, can CRUD Parents for their room (for which there is already a RoomAdmin/ParentsController). Now I need to give Admins the ability to manage Parents. So should I create an Admin/ParentsController and create a set of views specific to those use cases? Or is the 'Rails' convention to move the RoomAdmin/ParentsController to app/controllers and have both RoomAdmins and Admins share that controller? This will make that controller far more complex (and the views also). Bear in mind that the views will be slightly different for each Admin type, and the logic in each action will have minor differences depending on where we route to after each action based on whether it is an Admin or a RoomAdmin acting on that parent. So which option is the Rails convention? A - separate controllers, separate views B - one controller, one set of views, more complex logic to handle the differences? EDIT There is added complexity I forgot here, which is the controller inheritance chain, since both types of users have a different main layout and sign-in process: All controllers dealing with Rooms currently inherit from RoomAdminsController. All controllers dealing with Admin functionality inherit from AdminController. So RoomAdmin/ParentsController currently inherits from RoomAdminsController. If I move it, which one does it then inherit from? Agh! |
I definitely enjoying every little bit of it. It is a great website and nice share. I want to thank you. Good job! You guys do a great blog, and have some great contents. Keep up the good work.
ReplyDeletepg online
I read this article. I think You put a lot of effort to create this article. I appreciate your work.
ReplyDeletehttps://www.ufa365.info/
Easily, the article is actually the best topic on this registry related issue. I fit in with your conclusions and will eagerly look forward to your next updates. Just saying thanks will not just be sufficient, for the fantasti c lucidity in your writing. I will instantly grab your rss feed to stay informed of any updates.
ReplyDeleteแทงบอลเต็ง
I must say, I thought this was a pretty interesting read when it comes to thisC topic. Liked the material. . .
ReplyDeleteแทงบอลสเต็ป
I went over this website and I believe you have a lot of wonderful information, saved to my bookmarks
ReplyDeleteรีวิวเว็บพนัน
I must say, I thought this was a pretty interesting read when it comes to thisC topic. Liked the material. . .
ReplyDeleteufa365
Consequently, starting in the amount of electronic marketing strategy, is whenever a company's existing website, which will be to review the present site and its purpose is to improve the potency of the future. There is no evidence that the development and implementation of a method to be significantly different way of electronic marketing. Strategic planning for enterprise development or strategic marketing to comply with the established framework should still be
ReplyDeleteเว็บแทงบอลออโต้
I am always searching online for articles that can help me. There is obviously a lot to know about this. I think you made some good points in Features also. Keep working, great job!
ReplyDeleteUFA365
You made such an interesting piece to read, giving every subject enlightenment for us to gain knowledge. Thanks for sharing the such information with us to read this.
ReplyDeleteทำไมต้องเล่นบาคาร่า
So luck to come across your excellent blog. Your blog brings me a great deal of fun.. Good luck with the site.
ReplyDeleteแทงบาสเว็บไหนดี
Internet search engine optimization experts apply the modern analytics service, which has a positive affect a website. SEO companies are facing great competition in the SEO field. However, they introduce guaranteed SEO services to manage with the competition.
ReplyDeleteบาคาร่าsa-gaming
his is my first time i visit here. I found so many entertaining stuff in your blog, especially its discussion. From the tons of comments on your articles, I guess I am not the only one having all the leisure here! Keep up the excellent work.
ReplyDeleteแทงบาสออนไลน์
his is my first time i visit here. I found so many entertaining stuff in your blog, especially its discussion. From the tons of comments on your articles, I guess I am not the only one having all the leisure here! Keep up the excellent work.
ReplyDeleteคาสิโนออนไลน์ฟรีโบนัส/
his is my first time i visit here. I found so many entertaining stuff in your blog, especially its discussion. From the tons of comments on your articles, I guess I am not the only one having all the leisure here! Keep up the excellent work.
ReplyDeletelucky-god
Took me time to read all the comments, but I really enjoyed the article. It proved to be Very helpful to me and I am sure to all the commenters here! It’s always nice when you can not only be informed, but also entertained! ประวัตินักกีฬา
ReplyDelete