| Add filter to Middleman "previous article" loop Posted: 14 Mar 2016 06:51 AM PDT I'm pretty new to this, so I hope I get this right. I'm building a portfolio site with Middleman. I've activated the blog extension and I use articles as case studies. The articles contain "featured" in their front matter, which I either set to "true" or "false". The "featured: true" articles are displayed on the homepage. At the bottom of these articles I've added the following code to be able to navigate to the previous and next articles: <% prev_article = current_article.previous_article %> <% if prev_article %> <a href="<%= prev_article.url %>"><%= prev_article.title %></a> <% end %>
Thing is, I would like to add a filter so that just the articles with "featured: true" are added to this loop. I've tried the following: <% prev_article = current_article.previous_article %> <% if prev_article && prev_article.data.featured == "true" %> <a href="<%= prev_article.url %>"><%= prev_article.title %></a> <% end %>
But, as expected, this outputs nothing because both conditions aren't met. Hope anyone can help me out :) |
| Searh issue in Ruby-on-Rails Posted: 14 Mar 2016 06:54 AM PDT I currently have a DB in Ruby on Rails, however, I have been having trouble with the documentation on how to do much other than list all of the items in DB. I am still new to the this language as a whole, and wish I didn't need to ask for so much help, but here it goes. My pertinent code is as follows: migrate/(DB name)
class CreateArticles < ActiveRecord::Migration def change create_table :articles do |t| t.string :title t.text :text t.timestamps null: false end end end
articles_controller.rb
class ArticlesController < ApplicationController def index @articles = Article.all Article.search(params[:id]) end def show @article = Article.find(params[:search]) end def new @article = Article.new end def edit @article = Article.find(params[:id]) end def create @article = Article.new(params.require(:article).permit(:title, :text)) if @article.save redirect_to @article else render 'new' end end def update @article = Article.find(params[:id]) if @article.update(article_params) redirect_to @article else render 'edit' end end def destroy @article = Article.find(params[:id]) @article.destroy redirect_to articles_path end private def article_params params.require(:article).permit(:title, :text) end end
article.rb
class Article < ActiveRecord::Base validates :title, presence: true, length: { minimum: 5 } def self.search(search) if search @article = Article.where('name LIKE ?', "%#{search}%") else @article = Article.all end end end
index.html.rb
<h1>Listing articles</h1> <%= link_to 'New article', new_article_path %> <table> <tr> <th>Title</th> <th>Text</th> <th colspan="3"></th> </tr> <% @articles.each do |article| %> <tr> <td><%= article.title %></td> <td><%= article.text %></td> <td><%= link_to 'Show', article_path(article) %></td> <td><%= link_to 'Edit', edit_article_path(article) %></td> <td><%= link_to 'Destroy', article_path(article), method: :delete, data: { confirm: 'Are you sure?' } %></td> </tr> <% end %> <%= form_tag articles_path, :method => 'get' do %> <p> <%= text_field_tag :search, params[:search] %> <%= submit_tag "Search", :name => nil %> </p> <% end %> </table>
Thanks for any help in advance! |
| Test that a toast fires off in a Capybara feature spec? Posted: 14 Mar 2016 06:46 AM PDT I have a Rails app that I've recently refactored standard flash[:success] messages to use a flash[:toast], using http://materializecss.com/dialogs.html Here's what I'm doing with my flash partial: <% flash.each do |type, message| %> <% if type == "success" %> <div class="alert alert-success alert-dismissable" role="alert"> ... </div> <% elsif type == "toast" %> <script> $(function() { Materialize.toast('<%= message %>', 3000); }); </script> <% else %> <div class="alert alert-danger alert-dismissible" role="alert"> ... </div> <% end %> <% end %>
This works and looks awesome, especially on mobile and for complex data pages where I'm sending the user back to the middle of the page, and a standard flash success message on the top of the page would not be visible. I can easily test if flash[:toast] is not nil in a controller test, but in capybara feature tests, I don't have access to that, and I can't use the standard code that I used to use to test flash[:success] like: expect(page).to have_content("Your email address has been updated successfully.") expect(page).to have_css(".alert-success")
Right now I am resorting to just testing that an alert danger is not present, like: expect(page).to_not have_css(".alert-danger")
This works, but isn't really testing that the toast fired off. Is there any way to check that the javascript fired or that the toast appeared on the page for the 3 seconds? |
| How to have a main object in my ruby on rails json data Posted: 14 Mar 2016 06:44 AM PDT Question, I am loading data from my db to my local redis server I want this data to have a main object like "animals" for some reason it always save it with out a main object. Any help would be greatly appreciated. Here is my json data [ { "what_animal": "Lion", "create_date": "March-14-16", }, { "what_animal": "Zebra", "create_date": "March-15-16", }, { "what_animal": "Monkey", "create_date": "March-16-16", } ]
Here is what I would like it to look like { "animals": [ { "what_animal": "Lion", "create_date": "March-14-16", }, { "what_animal": "Zebra", "create_date": "March-15-16", }, { "what_animal": "Monkey", "create_date": "March-16-16", } ] }
Here is my method to get and update my redis server with the data in my db def self.fetch_animals animals = $redis.get("all_animals") if animals.nil? animals = Animals.all.order('create_date ASC').to_json $redis.set("all_animals", animals) $redis.expire("all_animals", 1.hour.to_i) end animals = JSON.load animals end
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| Testing a button which rendered ajax in ruby on rails Posted: 14 Mar 2016 06:39 AM PDT the problem is I am trying to write test for a button which rendered ajax in views,but it always shows cannot find the button or link(which means neither click_button nor click_link works),or say the format is wrong. What shall I change in my code to make the test pass? Thank you for your help. My test code is show below: describe 'Activate user'do specify 'Admin logged in', :js => true do admin = FactoryGirl.create(:admin) user = User.create(first_name: 'John', last_name: 'Smith', company: 'Genesys', position: 'Manager',role: 'member', access_token: '', email: 'user1@example.co.uk', password: 'password', password_confirmation: 'password', active: false) login_as admin visit '/' visit "/controlpanel" click_link("user-freeze-btn-#{user.id}") expect(user.active).to eq(true) end end
and this is the code in the view which is a button rendering ajax: = render :partial => 'user_freeze_btn', :locals => {:text => (user.active ? 'Activated' : 'Frozen'), :user => user, :btn_class => (user.active ? 'btn-success' : 'btn-danger')}
Here are the ajax "_user_freeze_btn.html.haml": %td= link_to text, {:remote => true, :controller => :users, :action => :toggle, :id => user}, {:class => "btn #{btn_class} btn-sm user-freeze-btn", :id => "user-toggle-btn-#{user.id}"}
and "_user_freeze_btn.jason.haml": %td= link_to text, {:remote => true, :controller => :users, :action => :toggle, :id => user}, {:class => "btn #{btn_class} btn-sm user-freeze-btn", :id => "user-toggle-btn-#{user.id}"}
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| Vote implementation for posts in Rails 4 Posted: 14 Mar 2016 06:47 AM PDT I have models User, Post, Vote. Here is my vote model: class Vote < ActiveRecord::Base SCORE_REGEX = /-1|1/ # Relations belongs_to :user belongs_to :post # Validations validates :score, allow_nil: true, format: {with: SCORE_REGEX } end
My posts appear on homepage and user profile. My controllers are: static_pages_controller (this is the controller holds home page), users_controller, posts_controller, votes_controller. I have template for post in views/posts/_post.html.erb which looks like this: <%= link_to post.id, post %> <br> <%= link_to post.user.name, post.user %> <%= post.content %> posted <%= time_ago_in_words(post.created_at) %> ago. <br> <% if post.edited %> post has been edited <%= time_ago_in_words(post.updated_at) %> ago. <% end %> <% if current_user?(post.user) %> <%= link_to "delete", post, method: :delete %>, <%= link_to "edit", edit_post_path(post)%> <% end %> <%= render 'shared/vote_form' %>
How do I make a working vote buttons (Like, unlike, dislike, undislike) for these posts? |
| deploying application locally through apache2 or Nginx Posted: 14 Mar 2016 06:35 AM PDT i have been developing a project for my college & now i want to deploy it in production so that other users can use it & concurrent request can be handled efficiently. i have been facing problem using apache2 after specifying the path of rails folder it is not executing rails application so can anyone can help me in providing the perfect way or instructions to deploy my rails application on apache2 or Nginx. |
| Not Sending Mail from Local Ubuntu 14.04 Posted: 14 Mar 2016 06:35 AM PDT I am using ubuntu 14.04.I have setup SMTP server using below command 1. sudo apt-get install mailutils 2. sudo nano /etc/postfix/main.cf readme_directory = no smtpd_relay_restrictions = permit_mynetworks permit_sasl_authenticated defer_unauth_destination myhostname = qi34 <Local Machine Name> alias_maps = hash:/etc/aliases alias_database = hash:/etc/aliases mydestination = tracksynq, qi34, localhost.localdomain, localhost, gmail, quantuminventions relayhost = mynetworks = 127.0.0.0/8 [::ffff:127.0.0.0]/104 [::1]/128 mailbox_size_limit = 0 recipient_delimiter = + inet_interfaces = loopback-only inet_protocols = all myorigin = /etc/mailname 3. sudo apt-get install postfix 4. sudo dpkg-reconfigure postfix 5. sudo service postfix restart 6. sudo apt-get install mutt
when I am sending mail, It doesn't send any mail.Another thing I am getting " Undelivered Mail Returned to Sender" the message. |
| How to open and close streaming from rather channels? Posted: 14 Mar 2016 06:16 AM PDT I installed rails 5 and start to create app with ActionCable. There are to much examples how to create "Dialog" app, but I don't found, how to work with 2(or more) channels, I mean, if I need 1 type of channel on the main page and 2nd type on the another pages, how to do that if user come to the main page - 1st channel is start streaming, when he come to another page - 1st is closing and opened 2nd type of? Thanks for any help! |
| Ruby on Rails and Twilio Posted: 14 Mar 2016 06:19 AM PDT After following instruction on how to integrate Twilio in ROR apps, I have an issues when making a curl request: curl -X POST http://localhost:3000/twilio/voice -d 'foo=bar'
Return me: <html><body>You are being <a href="http://localhost:3000/users/sign_in">redirected</a>.</body></html>
Thanks!! |
| Difference between assert and assert_select Posted: 14 Mar 2016 06:24 AM PDT I am writing a test case in rails Minitest, I have two scenarios, first one is : assert_select "button.btn[type=submit]", I18n.t('pay_and_post_job')
But when i run this then i get an error Expected at least 1 element matching "button.btn[type=submit]", found 0.. Expected 0 to be >= 1. But if i write the same assertion as : assert "button.btn[type=submit] #{I18n.t('pay_and_post_job')}"
Then test is passing Can someone explain this to me what exactly is happening?? |
| Rails4: ActionController::ParameterMissing (param is missing or the value is empty:) Posted: 14 Mar 2016 06:27 AM PDT I studied the rails tutorial by Michael Hartl and I'd like to add new service to this app. Although I created new model, controller and views, the following error appeared when I submit f.submit "Create my schedule" in _schedule_form.html.erb. This error may be caused by strong parameter, I guess. It would be appreciated if you could give me any suggestion. development.log ActionController::ParameterMissing (param is missing or the value is empty: schedule): app/controllers/schedules_controller.rb:30:in `schedule_params' app/controllers/schedules_controller.rb:9:in `create'
schedule_controller.rb class SchedulesController < ApplicationController before_action :logged_in_user, only: [:create, :destroy] def new @schedule = Schedule.new end def create @schedule = current_user.schedules.build(schedule_params) if @schedule.save flash[:success] = "schedule created!" redirect_to root_url else render 'new' end end ... private def schedule_params params.require(:schedule).permit(:title) end end
views\schedules\new.html.erb <div class="row"> <div class="col-md-12"> <p>Create schedule (<%= current_user.name %>)</p> <%= render "schedule_form" %> </div> </div>
views\schedules\ _schedule_form.html.erb <%= form_for(@schedule) do |f| %> <%= render 'shared/error_messages', object: f.object %> <div class="input-group"> <span class="input-group-addon">Title</span> <input type="text" class="form-control"> </div> <br> <%= f.submit "Create my schedule", class: "btn btn-primary" %> <br> <% end %>
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| speed up a 2-3hour rake task Posted: 14 Mar 2016 06:41 AM PDT I've got this rake task on rails that populates my database, It needs to run daily. require 'open-uri' require 'csv' namespace :tm do task reload: :environment do gzipped = open('csv link') csv_text = Zlib::GzipReader.new(gzipped).read csv = CSV.parse(csv_text, headers: true) csv.each do |row| if row[4] == 'logo url' else tmdate = Date.parse(row[10]).strftime('%Y-%m-%d') viatmdate = Date.parse(row[10]).strftime('%d/%m/%Y') swtmdate = row[10] tmlocation = row[6].split('at ')[1] place = row[11].split('|')[1] place1 = row[11].split('|')[2] place2 = row[11].split('|')[3] location = '' + place + ', ' + place1 + ', ' + place2 + '' tmtime = row[9] text = row[7].gsub('text', '') if text.include? '��' eventname = text.gsub('��', 'e') else eventname = text.gsub(/[ªÀÈÌÒÙàèìòùÁÉÍÓÚáéíóúÂÊÎÔÛâêîôûÃÑÕãñõÄËÏÖÜŸäëïöüÿ]/, '') end if text.include? '��' tmname = text.gsub('��', 'e') else tmname = text.gsub(/[ªÀÈÌÒÙàèìòùÁÉÍÓÚáéíóúÂÊÎÔÛâêîôûÃÑÕãñõÄËÏÖÜŸäëïöüÿ]/, '') end if text.include? ' -' tmnamesplit = text.split(' -')[0] end if tmname[/[^0-9]/].present? tmnamenn = tmname.gsub(/[^0-9]/i, '') end text2urldb = text2.where('eventtitle ILIKE ? AND eventdoortime = ? ', "%#{tmname.gsub(/[\-\:\ ]/, '%')}%", tmdate.to_s).first text3urldb = text3.where('product_name ILIKE ? AND delivery_time = ? AND valid_from = ?', "%#{tmname}%", tmtime.to_s, tmdate.to_s).first text1urldb = text1.where('product_name ILIKE ? AND specifications = ? AND promotional_text = ?', "%#{tmname}%", viatmdate.to_s, "%#{place}%").first if tmnamesplit.present? if text1urldb.blank? text1urldb = text1.where('product_name ILIKE ? AND specifications = ?', "%#{tmnamesplit}%", viatmdate.to_s).first end if text3urldb.blank? text3urldb = text3.where('product_name ILIKE ? AND delivery_time = ? AND valid_from = ?', "%#{tmnamesplit}%", tmtime.to_s, tmdate.to_s).first end end if text1urldb.blank? text1urldb = text1.where('product_name ILIKE ? AND specifications = ? AND promotional_text = ?', "%#{tmname}%", viatmdate.to_s, "%#{location}%").first if text1urldb.blank? text1urldb = text1.where('product_name ILIKE ? AND specifications = ?', "%#{tmname}%", viatmdate.to_s).first end if text1urldb.blank? text1urldb = text1.where('product_name ILIKE ? AND specifications = ? AND promotional_text = ?', "%#{tmname}%", viatmdate.to_s, "%#{tmlocation}%").first end end if text1urldb.present? vurl = text1urldb.merchant_deep_link txt = vurl re1 = '.*?' # Non-greedy match on filler re2 = '(?:[a-z][a-z]+)' # Uninteresting: word re3 = '.*?' # Non-greedy match on filler re4 = '(?:[a-z][a-z]+)' # Uninteresting: word re5 = '.*?' # Non-greedy match on filler re6 = '(?:[a-z][a-z]+)' # Uninteresting: word re7 = '.*?' # Non-greedy match on filler re8 = '(?:[a-z][a-z]+)' # Uninteresting: word re9 = '.*?' # Non-greedy match on filler re10 = '(?:[a-z][a-z]+)' # Uninteresting: word re11 = '.*?' # Non-greedy match on filler re12 = '((?:[a-z][a-z]+))' # Word 1 re = (re1 + re2 + re3 + re4 + re5 + re6 + re7 + re8 + re9 + re10 + re11 + re12) m = Regexp.new(re, Regexp::IGNORECASE) if m.match(txt) word1 = m.match(txt)[1] end end gmiurl = text3urldb.merchant_deep_link if text3urldb.present? gigurl = text2urldb.eventurl if text2urldb.present? api = HTTParty.get(URI.encode('text url' + tmname + '&when_from=' + swtmdate)).parsed_response api1 = api['Paging'] api2 = api1['TotalResultCount'] if api1.blank? newapi = HTTParty.get(URI.encode('texturl' + tmnamenn + '&when_from=' + swtmdate)).parsed_response paging = newapi['Paging'] api2 = paging['TotalResultCount'] if newapi.blank? apisplit = HTTParty.get(URI.encode('texturl' + tmnamesplit + '&when_from=' + swtmdate)).parsed_response pagingsplit = apisplit['Paging'] api2 = pagingsplit['TotalResultCount'] end end text1 = vurl text3 = gmiurl text2 = gigurl if api2 == 0 else swurl = api['Events'].first['SwURL'] end event = Event.find_by(time: row[9], date: row[10], eventname: eventname, eventvenuename: location) if event.present? event.update(event_type: word1, text: row[8], eventimage: row[4], textlink: swurl, text1link: text1, text3url: text3, text2url: text2) else Event.create(time: row[9], date: row[10], event_type: word1, text: row[8], eventimage: row[4], eventname: eventname, eventvenuename: location, textlink: swurl, text1link: text1, text3url: text3, text2url: text2) end end end end end
Now I'm willing to do anything, The csv link is an api link to a csv. I'm willing to split this up over multiple files, The issues it i have no idea how long it takes to run, So it'd have to be a once complete run next rake task. At the moment, This takes around 2-3 hours to complete and populate the db. Any ideas how to speed this up? Thanks Sam |
| Schema.rb issue (changes in 2 branches) Posted: 14 Mar 2016 05:58 AM PDT Let's say I'm working on a branch 'master'. It's clean. I made another branch 'task' and added a new table to database. I commited the changes but didn't push to remote repo. Then I switched to the 'master' branch and make changes to db also. When I press git diff db/schema.rb I can see that the table was added to my schema, but I didn't add it in my 'master' branch which means I can see differences in schema.rb file but the migration itself is in a 'task' branch. How do I commit and push the changes from 'master' branch? |
| Ruby parse DateTime with variable Posted: 14 Mar 2016 06:23 AM PDT I'm trying to parse a specific hour of a specific date. When I put the date directly as an argument, it works fine, but when I create a variable and put it in the argument it returns the current date. Why is that? NOTE: the variable time is 9pm and I need to parse 9pm of 12 March 2016. datetime = DateTime.new(2016,3,12,9) => Sat, 12 Mar 2016 09:00:00 +0000 DateTime.parse("sat 12 march 2016 9pm") => Sat, 12 Mar 2016 21:00:00 +0000 DateTime.parse("datetime 9pm") => Mon, 14 Mar 2016 21:00:00 +0000
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| Single spec duration Posted: 14 Mar 2016 06:47 AM PDT Is there a way in RSpec to show every single test duration and not just the total suite duration? Now we have Finished in 7 minutes 31 seconds (files took 4.71 seconds to load) but I'd like to have something like User accesses home and he can sign up (finished in 1.30 seconds) he can visit profile (finished in 3 seconds) . . . Finished in 7 minutes 31 seconds (files took 4.71 seconds to load)
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| Routing for multiple profile views Posted: 14 Mar 2016 06:50 AM PDT I no have idea how to implement display of the multiple user's profile. I use STI inheritance to for few types of person. What I want? I want to create the simplest routing for each type of person, and possibility to display and edit profile for each type of person. Now I have this:  I thought about profile view(backend_people_profile) only for people model, and update_profile for each type. Is it correct? Now I have too many repetitive paths. routes.rb namespace :backend do resources :managers, except: [:new, :create] do get '/profile', to: 'people#show_profile' end resources :clients, except: [:new, :create] do get '/profile', to: 'people#show_profile' end resources :receptionists, except: [:new, :create] do get '/profile', to: 'people#show_profile' end resources :trainers, except: [:new, :create] do get '/profile', to: 'people#show_profile' end resources :lifeguards, except: [:new, :create] do get '/profile', to: 'people#show_profile' end end
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| Rails: validate date range uniqueness at database level Posted: 14 Mar 2016 06:04 AM PDT I have a Rails app with these 3 models - RentingUnit, Tenant & Booking. A Tenant can Book a RentingUnit by filling up a form for a new booking with these fields - renting_unit_id, tenant_id, start_date, end_date. start_date & end_date together form the duration the renting_unit is booked for. With that, I want to make sure that a renting_unit can not be booked for a duration that overlaps with any duration it's already booked for. (I'm using PostgreSQL database if that matters.) I came across related answers with Model level validations but I want to enforce uniqueness at the database level too, to account for a possible race condition. How can I go about implementing it? |
| Rails PSQL query JSON for nested array and objects Posted: 14 Mar 2016 05:15 AM PDT So I have a json (in text field) and I'm using postgresql and I need to query the field but it's nested a bit deep. Here's the format: [ { "name":"First Things", "items":[ { "name":"Foo Bar Item 1", "price":"10.00" }, { "name":"Foo Item 2", "price":"20.00" } ] }, { "name":"Second Things", "items": [ { "name":"Bar Item 3", "price":"15.00" } ] } ]
And I need to query the name INSIDE the items node. I have tried some queries but to no avail, like: .where('this_json::JSON @> [{"items": [{"name": ?}]}]', "%#{name}%"). How should I go about here? I can query normal JSON format like this_json::JSON -> 'key' = ? but need help with this bit. |
| Rails 4 - .js.erb rendered into layout, not executed (driving me nuts!) Posted: 14 Mar 2016 05:40 AM PDT I'm attempting to update a span using a simple link_to and an action. Visually when I click the link 'nothing happens', (the page doesn't change). Looking at the response to the request, I see my layout with the contents of the js.erb file inserted where the layout yields. My environment is Rails 4.2 running under Docker on OS X and also Elastic Beanstalk on AWS. app/views/admin/games.haml: %p=link_to("Hint please", {:action=> "hint"}, :remote => true) %span#hint where next?
app/controllers/admin_controller.rb: def hint respond_to do |format| format.js end end
app/views/admin/hint.js.erb: $("#hint").text('hello coffee');
rails log on clicking the link: Started GET "/admin/hint" for 192.168.99.1 at 2016-03-14 12:04:33 +0000 Cannot render console from 192.168.99.1! Allowed networks: 127.0.0.1, ::1, 127.0.0.0/127.255.255.255 Processing by AdminController#hint as JS Rendered admin/hint.js.erb within layouts/admin (0.0ms) Rendered application/_favicon.haml (8.9ms) Completed 200 OK in 197ms (Views: 196.0ms | ActiveRecord: 0.0ms)
I followed the debug instructions at https://www.alfajango.com/blog/rails-js-erb-remote-response-not-executing/ - I see no Javascript errors. The response is the layout with the contents of the .js.erb rendered as text where the yield command is in the layout: <div id='main'> <div class='header'> <h1></h1> <h2></h2> </div> <div class='content'> $("#hint").text('hello coffee'); </div> </div>
This is driving me crazy, thank you for your help. |
| Error in searching for :all Posted: 14 Mar 2016 06:53 AM PDT I am currently trying to create a search method, I have a database all setup, however, I am running into the errors ActiveRecord::RecordNotFound in ArticlesController#index
and Couldn't find Article with 'id'=all
Here is the pertinent code: Articles_controller.rb
class ArticlesController < ApplicationController def index @articles = Article.all @articles = Article.search(params[:id]) end def show @article = Article.find(params[:search]) end def new @article = Article.new end def edit @article = Article.find(params[:id]) end def create @article = Article.new(params.require(:article).permit(:title, :text)) if @article.save redirect_to @article else render 'new' end end def update @article = Article.find(params[:id]) if @article.update(article_params) redirect_to @article else render 'edit' end end def destroy @article = Article.find(params[:id]) @article.destroy redirect_to articles_path end private def article_params params.require(:article).permit(:title, :text) end end
article.rb
class Article < ActiveRecord::Base validates :title, presence: true, length: { minimum: 5 } def self.search(search) if search @article = Article.find(:all, :conditions => ['name LIKE ?', "%#{search}%"]) else @article = Article.find(:all) end end end
index.rb
<h1>Listing articles</h1> <%= link_to 'New article', new_article_path %> <table> <tr> <th>Title</th> <th>Text</th> <th colspan="3"></th> </tr> <% @articles.each do |article| %> <tr> <td><%= article.title %></td> <td><%= article.text %></td> <td><%= link_to 'Show', article_path(article) %></td> <td><%= link_to 'Edit', edit_article_path(article) %></td> <td><%= link_to 'Destroy', article_path(article), method: :delete, data: { confirm: 'Are you sure?' } %></td> </tr> <% end %> <%= form_tag articles_path, :method => 'get' do %> <p> <%= text_field_tag :search, params[:search] %> <%= submit_tag "Search", :name => nil %> </p> <% end %> </table>
Sorry for all the code to look through. The errors I am getting are from running localhost:3000/articles, where I receive these error messages from the server. I should note that I am still very new to both Ruby and Ruby on Rails, however, I aim to learn and find seeing proper code to help me quite significantly (I am dyslexic and tend to be a visual learner). I truly appreciate your help in advance. |
| How to Combine Rails and Html together to make a form with function Posted: 14 Mar 2016 04:38 AM PDT Here is my rails form, but it is just a text field or text area function, I may wanna it to be selected, and I do not understand how to combine html and rails together. Here is the code of rails and html. Case1 for text field, when I combine html and rails together, it did not work <%=label_tag "Type date (dd-mm-yyyy)" %><br> <%= f.text_field :date, :class => "form-control", :placeholder => "Example: 30-07-1995" %>
Case2 for select box, How can i combine rails and html together? <%= f.label :selectDay %><br> <%= f.text_field :name %> <select day="name"> <option>Monday</option> <option>Tuesday</option> <option>Wednesday</option> <option>Thursday</option> <option>Friday</option> <option>Saturday</option> <option>Sunday</option> </select>
The point is when i add html code into rails form code, it did not work? Anyone help me through this, Thanks guys!! |
| Give each partial its own id Cocoon gem rails Posted: 14 Mar 2016 04:16 AM PDT I am working on an app in Rails that will allow Questions to be added to a Quiz through Link. (a has_many: through association). So far I am implementing this with the Cocoon gem. The _form.html.erb where Questions are inserted is shown below: <table class = "table"> <thead> <tr> <th>Category</th> <th>Question</th> <th>Answers</th> <th></th> </tr> </thead> <tbody id = "question_table"> </tbody> </table> <div id="questions"> <div id="questionno"></div> <%= f.fields_for :links do |link| %> <% render 'link_fields', f: link %> <% end %> </div> <div class="links"> <div id="button_text"> <button type="button" class="btn btn-primary"> <%= link_to_add_association f, :links, :"data-association-insertion-node" => "tbody#question_table", :"data-association-insertion-method" => "append", :class => "button" do %>Add question<% end %> </button> </div> </div>
Each time link_to_add_association is called my _link_fields.html.erb is drawn. This partial contains several fields. A snippet of this file is shown below: <tr class = "table_row" > <div class="nested-fields link-fields" > <div id="question_from_list"> <td class="col-sm-1"> <div class = "field"> <%= f.select :question_category, options_for_select(Category.all.collect { |category| [category.categoryBody.titleize, category.id] }, 1), {}, { id: "categories_select_1" } %> </div> </td>
What I would like to do is give each f.select its' own id. I have done some googling and it seems the way to achieve this in cocoon is with callbacks. I am trying to use the before_insert callback to generate an id and fetch the f.select element and change its id. However this doesn't seem to be working. My code is as follows: assets/javascripts/quizzes.coffee: $('#questions a.add_fields').data('association-insertion-position', 'before').data 'association-insertion-node', 'this' $('#questions').on 'cocoon:after-insert', -> $(this).children('#categories_select_1').attr 'id', 'newId' return
This callback doesn't seem to do anything. Other code in my quizzes.coffee file runs absolutely fine so I am sure the file is loaded. I am sure there is something simple I have overlooked but I am not sure where I have gone wrong. Any help would be enormously appreciated. Thanks |
| My rails server cannot run on Cloud9 Posted: 14 Mar 2016 04:16 AM PDT No matter what I try to do it won't work. Here is my current console code. All I know is that it has something to do with sass-rails. I really am looking out for some help here. I understand the GEM cannot be found however, how do I make it so it can be loaded. /usr/local/rvm/gems/ruby-2.3.0/gems/bundler-1.11.2/lib/bundler/runtime.rb:80:in `rescue in block (2 levels) in require': There was an error while trying to load the gem 'sass-rails'. (Bundler::GemRequireError) from /usr/local/rvm/gems/ruby-2.3.0/gems/bundler-1.11.2/lib/bundler/runtime.rb:76:in `block (2 levels) in require' from /usr/local/rvm/gems/ruby-2.3.0/gems/bundler-1.11.2/lib/bundler/runtime.rb:72:in `each' from /usr/local/rvm/gems/ruby-2.3.0/gems/bundler-1.11.2/lib/bundler/runtime.rb:72:in `block in require' from /usr/local/rvm/gems/ruby-2.3.0/gems/bundler-1.11.2/lib/bundler/runtime.rb:61:in `each' from /usr/local/rvm/gems/ruby-2.3.0/gems/bundler-1.11.2/lib/bundler/runtime.rb:61:in `require' from /usr/local/rvm/gems/ruby-2.3.0/gems/bundler-1.11.2/lib/bundler.rb:99:in `require' from /home/ubuntu/workspace/config/application.rb:7:in `<top (required)>' from /usr/local/rvm/gems/ruby-2.3.0/gems/railties-4.2.6/lib/rails/commands/commands_tasks.rb:78:in `require' from /usr/local/rvm/gems/ruby-2.3.0/gems/railties-4.2.6/lib/rails/commands/commands_tasks.rb:78:in `block in server' from /usr/local/rvm/gems/ruby-2.3.0/gems/railties-4.2.6/lib/rails/commands/commands_tasks.rb:75:in `tap' from /usr/local/rvm/gems/ruby-2.3.0/gems/railties-4.2.6/lib/rails/commands/commands_tasks.rb:75:in `server' from /usr/local/rvm/gems/ruby-2.3.0/gems/railties-4.2.6/lib/rails/commands/commands_tasks.rb:39:in `run_command!' from /usr/local/rvm/gems/ruby-2.3.0/gems/railties-4.2.6/lib/rails/commands.rb:17:in `<top (required)>' from /home/ubuntu/workspace/bin/rails:9:in `require' from /home/ubuntu/workspace/bin/rails:9:in `<top (required)>' from /usr/local/rvm/gems/ruby-2.3.0/gems/spring-1.6.4/lib/spring/client/rails.rb:28:in `load' from /usr/local/rvm/gems/ruby-2.3.0/gems/spring-1.6.4/lib/spring/client/rails.rb:28:in `call' from /usr/local/rvm/gems/ruby-2.3.0/gems/spring-1.6.4/lib/spring/client/command.rb:7:in `call' from /usr/local/rvm/gems/ruby-2.3.0/gems/spring-1.6.4/lib/spring/client.rb:28:in `run' from /usr/local/rvm/gems/ruby-2.3.0/gems/spring-1.6.4/bin/spring:49:in `<top (required)>' from /usr/local/rvm/gems/ruby-2.3.0/gems/spring-1.6.4/lib/spring/binstub.rb:11:in `load' from /usr/local/rvm/gems/ruby-2.3.0/gems/spring-1.6.4/lib/spring/binstub.rb:11:in `<top (required)>' from /home/ubuntu/workspace/bin/spring:13:in `require' from /home/ubuntu/workspace/bin/spring:13:in `<top (required)>' from bin/rails:3:in `load' from bin/rails:3:in `<main> And my GEM file source 'https://rubygems.org' # Bundle edge Rails instead: gem 'rails', github: 'rails/rails' gem 'rails', '4.2.6' # Use sqlite3 as the database for Active Record gem 'sqlite3', group: [:development, :test] # Use postgresql as the database for production group :production do gem 'pg' gem 'rails_12factor' end gem 'sass-rails', '5.0' # Use Uglifier as compressor for JavaScript assets gem 'uglifier', '>= 1.3.0' # Use CoffeeScript for .coffee assets and views gem 'coffee-rails', '4.1.0' # See https://github.com/rails/execjs#readme for more supported runtimes # gem 'therubyracer', platforms: :ruby # Use jquery as the JavaScript library gem 'jquery-rails' # Turbolinks makes following links in your web application faster. Read more: https://github.com/rails/turbolinks gem 'turbolinks' # Build JSON APIs with ease. Read more: https://github.com/rails/jbuilder gem 'jbuilder', '2.0' # bundle exec rake doc:rails generates the API under doc/api. gem 'sdoc', '0.4.0', group: :doc # Use ActiveModel has_secure_password # gem 'bcrypt', '3.1.7' # Use Unicorn as the app server # gem 'unicorn' # Use Capistrano for deployment # gem 'capistrano-rails', group: :development group :development, :test do # Call 'byebug' anywhere in the code to stop execution and get a debugger console gem 'byebug' end group :development do # Access an IRB console on exception pages or by using <%= console %> in views gem 'web-console', '~> 2.0' # Spring speeds up development by keeping your application running in the background. Read more: https://github.com/rails/spring gem 'spring' end
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| Or condition is not working with rails 4 Posted: 14 Mar 2016 04:27 AM PDT Hello I have included given code eventCode ='AUTHORISATION' success ='true' paymentMethod = 'unionpay' eventCode == 'AUTHORISATION' && success == 'true' && paymentMethod == ('alipay' || 'unionpay') #returns false
above condition returns false but it has to return true why my condition is not working. Please help me in solving this. |
| Rails reverse geocoder is returning nill result Posted: 14 Mar 2016 03:56 AM PDT in model Location reverse_geocoded_by :lat, :lng after_validation :reverse_geocode
in controller @location = @employee.locations.find(params[:id]) @add = @location.address
it gives me "Reserved" as a result. also i have address column in my location table to...can you tell me right way of getting address from coordinates |
| ALTER TABLE lhm migration deletes existing values Posted: 14 Mar 2016 03:40 AM PDT require 'lhm' class RenameField1ToField2ForTable < ActiveRecord::Migration def up Lhm.change_table :table do |m| m.ddl("ALTER TABLE TABLENAME CHANGE COLUMN field1 field2 FLOAT DEFAULT NULL") end end def down Lhm.change_table :table do |m| m.ddl("ALTER TABLE TABLENAME CHANGE COLUMN field1 field2 FLOAT DEFAULT NULL") end end end
What happend: - Rails-4.0: rake db:migrate
- Field was renamed successfully.
- All existing field values are erased, why? Any ideas?
// - old datatype was
float(11) |
| Authentication with an Existing External API Posted: 14 Mar 2016 06:22 AM PDT I am building a Ruby on Rails (Rails - v4.2.3 & Ruby 2.2.2) App which consumes an existing REST API. The aforementioned API is written in PHP. I need help regarding how to manage the authentication? On searching through various forums I came across these two gems - https://github.com/lynndylanhurley/devise_token_auth
- https://github.com/gonzalo-bulnes/simple_token_authentication
The problem I am facing with both is that they require my app to have a users model configured (using Devise). However My app is primarily a front end for the Existing REST API, so if I do configure my own User model, I will end up with two Data Stores (One for the APP I make and the other for the existing API). I wish to consume the external API and not have any native models for my APP. I believe I can use ActiveResource for this (I need more reputation points to post a link to the gem, sorry I cannot do that right now, I am new to StackOverflow): However I am not sure how to go about managing the security of the application. More specifically what measures can I take to prevent the authentication information from being viewed in plaintext while it is being transmitted to my API server for authentication? Thank You. |
| ActiveRecord find where many dates don't overlap with many other dates (Rails) Posted: 14 Mar 2016 03:23 AM PDT What I'm trying to do is pretty complicated, but bear with me. I am using Rails, ActiveRecord, Postgres. Events have many locations and have many start and end times. Users can assign themselves to an event. A User can only be in one place at a time. So, on the "assign yourself to an event page", I need to only show the Events that don't have overlapping times with the User's already assigned events. I know that you can do this with a join but I can't figure out how. Models: class Event < ActiveRecord::Base has_many :locations has_many :event_times has_many :assignments end class Location < ActiveRecord::Base belongs_to :event has_many :event_times end class EventTime < ActiveRecord::Base belongs_to :location belongs_to :event end class User < ActiveRecord::Base has_many :assignments end class Assignment < ActiveRecord::Base belongs_to :user belongs_to :event end
This sums up what I'm trying to do. I know it's terrible. user_events = Assignment.where(user_id: current_user.id).pluck(:event_id) blocked_event_times = EventTime.where(event_id: user_events) blocked_query_string = "" blocked_event_times.each do |bt| blocked_query_string += "NOT( event_times.start <= '#{bt.end}'::timestamp AND event_times.end >= '#{bt.start}'::timestamp ) AND " end blocked_query_string += "1=1" return Event.includes(:event_times).where(blocked_query_string).references(:event_times)
Am I on the right track thinking I should do something like (pseudocode): @acceptable_times = EventTime.all LEFT JOIN user's_assigned_event_times
and then get the Events where all of the event's times are present in @acceptable_times |
| Rails upload files to Amazon S3 with carrierwave and fog Posted: 14 Mar 2016 04:28 AM PDT I tried to upload movie files from my rails application to Amazon S3. First I tried paperclip, but it dosn't worked ... No I tried carrierwave + fog but same result nothing worked, no files stored in S3 no database entry and no errors ... My Files look like this: app/uploader/movie_uploader.rb class MovieUploader < CarrierWave::Uploader::Base storage :fog def store_dir "uploads/#{model.class.to_s.underscore}/#{mounted_as}/#{model.id}" end end
config/initializers/carrierwave.rb CarrierWave.configure do |config| config.fog_credentials = { provider: 'AWS', aws_access_key_id: '--', aws_secret_access_key: '--', region: 'eu-central-1' } config.fog_directory = 'movies' end
app/models/movie.rb class Movie < ActiveRecord::Base mount_uploader :movie, MovieUploader end
app/controller/movies_controller.rb class MoviesController < ActionController::Base layout "application" # Method to add a new Movie def addMovie if request.post? @movie = Movie.new(movies_params) if @movie.save redirect_to :addMovie end else @movie = Movie.new end end private def movies_params params.require(:movie).permit(:movietitle, :movieprice, :locked, :moviedescription, :currency, :language, :movie) end end
upload form normal multipart form_tag <%= form_for Movie.new, :html => {:multipart => true, :class => "form-horizontal", :role => "form"}, :method => :post, :url => {} do |f| %>
with file field <div class="form-group"> <label><%= f.label :movie %></label> <%= f.file_field :movie, :class => "form-control", :placeholder => :movie %> </div>
I used this tutorial: https://u.osu.edu/hasnan.1/2014/03/13/rails-4-upload-image-to-s3-using-fog-and-carrierwave/ Whats going wrong? |
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