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• Routing a location that matches one controller to another

  - by Luca Romagnoli

  Hi I have a controller named "places" with some actions like "view", "new", "create" When a user goes to mysite.com/places I want to execute the action "show" of another controller called "cores" So I've put this in the routes.rb file: map.connect '/:id/show', :controller => "cores", :action => "show" But it doesn't work. I receive this error: Processing PlacesController#show (for 127.0.0.1 at 2010-04-16 00:52:07) [GET] ActionController::UnknownAction (No action responded to show. Actions: admin_denied, admin_required, auto_complete_for_location, auto_complete_for_name, change_location, create, create_facebook_session, create_facebook_session_with_secret, edit, exist, facebook_params, facebook_session, facebook_session_expired, facebook_session_parameters, get_form, is_admin?, new, one_or_true, redirect_to, render_publisher_error, render_publisher_interface, render_publisher_response, set_facebook_session, top_redirect_to, update, wants_interface?, and zero_or_false): How can i do to map that action in another controller? thanks

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• Iterating Over Params Hash

  - by Joe Clark

  I'm having an extremely frustrating time getting some images to upload. They are obviously being uploaded as rack/multipart but the way that I'm iterating over my params hash must be causing the problem. I could REALLY use some help, so I can stop pulling out my hair. So I've got a params hash that looks like this: Parameters: {"commit"=>"Submit", "sighting_report"=>[{"number_seen"=>"1", "picture"=>#<File:/var/folders/IX/IXXrbzpCHkq68OuyY-yoI++++TI/-Tmp-/RackMultipart.85991.5>, "species_id"=>"2"}], "authenticity_token"=>"u0eN5MAfvGWtfEzrqBt4qfrL54VJ9SGX0jFLZCJ8iRM=", "sighting"=>{"sighting_date(2i)"=>"6", "name"=>"", "sighting_date(3i)"=>"5", "county"=>"0", "notes"=>"", "location"=>"", "sighting_date(1i)"=>"2010", "email"=>""}} My form can have multiple sighting reports with multiple pictures in each sighting report. Here's my controller code: def create_multiple @report = Report.new @report.name = params[:sighting]["name"] @report.sighting_date = Date.civil(params[:sighting][:"sighting_date(1i)"].to_i, params[:sighting][:"sighting_date(2i)"].to_i, params[:sighting][:"sighting_date(3i)"].to_i) @report.county_id = params[:sighting][:county] @report.location = params[:sighting][:location] @report.notes = params[:sighting][:notes] @report.email = params[:sighting][:email] @report.save! @report.reload for sr in params[:sighting_report] do sighting = SightingReport.new sighting.report_id = @report.id sighting.species_id = sr[:species_id] sighting.number_seen = sr[:number_seen] sighting.save if sr[:picture] sighting.reload for pic in sr[:picture] do p = SpeciesPic.new p.uploaded_picture = pic p.species_id = sighting.species_id p.report_id = @report.id p.save! end end end redirect_to :action => 'new_multiple' end

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• Synchronize locale yml files tool in Rails

  - by Konstantinos

  I was wondering, is it possible to synchronize with any tool or gem or w/e 2 or more yml files? eg. i have the Greek yml file called el.yml el: layout: home: "??????" and the english one called en.yml en: layout: home: "Home" category: "Category" Is there any tool that based on a single yml file ie en.yml ( root ) that goes to the rest of the ymls and creates the missing translations with the default (en.yml) values? After running such a tool i would expect to have the el.yml become likes this: el: layout: home: "??????" category: "Category" I am using a similar tool in .NET RESX Synchronizer and it does exactly that, but for resx files.

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• Conditional relation

  - by Lowgain

  I've got a model like this: Stem -id -etc And then I have Stemrelation -stem_id -related_stem_id -active I can get the related stems with the following relations class Stem < ActiveRecord::Base has_many :stemrelations has_many :related_stems, :through => :stemrelations end class Stemrelation < ActiveRecord::Base belongs_to :stem belongs_to :related_stem, :class_name => "Stem", :foreign_key => "related_stem_id" end But now I'd only like to get the active relations. I tried adding this to the Stem model: has_many :active_related, :through => :stemrelations, :source => :related_stem, :conditions => {:active => true} but this gives me an error becasue it tries to check the active flag on the stem model instead of the stemrelation. What do I change here? Thanks!

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• How to add additional params in url in rails?

  - by Yuri

  I have map.resources :users And I try to pass additional parameters to helper method to filter output: users_path(:filter => "female") It does not work. Why?

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• Workling not running tasks in background

  - by alex

  Hi, I followed the railscast that describes how to get workling running background tasks, but can't get it working. The task runs, but not in the background (it's taking 5 secs before I'm redirected to admin_path). Here is what my code looks like: class AdminWorker < Workling::Base   def test_workling(options)     sleep 5   end end class AdminController < ApplicationController   def test_workling     AdminWorker.async_test_workling     flash[:notice] = "Doing stuff in the background"     redirect_to admin_path   end end What am I doing wrong? How to debug? Thanks!

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• aws-s3 can't find xml-simple, but in gem list

  - by Dan Donaldson

  I'm transitioning to heroku, and need to have AWS-s3 connections to deal with a variety of graphics. I've installed the aws-s3 gem, but one of its dependencies is not being found: xml-simple. My belief is that this is a standard part of RoR, and it is in the gem list. When I deploy to heroku, all is fine, but on my development server, it isn't being found when the code uses it to check the existence of a graphic. It works fine from the console, using s3sh. I'm not quite sure why this is -- what do I need to check? Using OS X 10.6, on a 64 bit machine -- can this be part of it?

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• Using Bundler along with preinstalled gems

  - by Rob Cameron

  So I've got thin installed the old fashioned way: gem install thin I put an app on the server and installed all of its required gems via bundler: bundle install But, when I tried to start the app with thin start, it can't find any of the bundler-installed gems since they're not installed in the default gems directory. My question is: how do I make this work? Do I need to install thin via bundler as well? Will that still set up the thin executable in /usr/bin so I can start it from the command line like normal? Thanks!

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• Why are my RSpec specs running twice?

  - by James A. Rosen

  I have the following RSpec (1.3.0) task defined in my Rakefile: require 'spec/rake/spectask' Spec::Rake::SpecTask.new(:spec) do |spec| spec.libs << 'lib' << 'spec' spec.spec_files = FileList['spec/**/*_spec.rb'] end I have the following in spec/spec_helper.rb: require 'rubygems' require 'spec' require 'spec/autorun' require 'rack/test' require 'webmock/rspec' include Rack::Test::Methods include WebMock require 'omniauth/core' I have a single spec declared in spec/foo/foo_spec.rb: require File.dirname(__FILE__) + '/../spec_helper' describe Foo do describe '#bar' do it 'be bar-like' do Foo.new.bar.should == 'bar' end end end When I run rake spec, the single example runs twice. I can check it by making the example fail, giving me two red "F"s. One thing I thought was that adding spec to the SpecTask's libs was causing them to be double-defined, but removing that doesn't seem to have any effect.

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• newbie: Rails on remote Apache server not displaying index.html.erb

  - by paracaudex

  I played around with Rails on my laptop (running Linux + Apache + MySQL) and had no trouble getting the Getting Started with Rails tutorial to work locally. Now I'm trying the same thing at work on a remote Mac OS X + Apache server, and things aren't quite so rosy. I typed rails blog -d mysql to create a directory called blog in /Library/WebServer/Documents/mydirectory. The trouble is, if I go to server.com/mydirectory/public, I get the public/index.html in my browser. But, I don't get this file if I go to server.com/mydirectory/. Instead, I get a 403 error. Also, when I: script/generate controller home index to create: app/views/home/index.html.erb I am unable to view this file, whether I go to server.com/mydirectory/home/index, or if I add a new line (map.root :controller => "home") to config/routes.rb and go to server.com/mydirectory. Am I missing something really obvious about Apache and Rails?

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• why is this rails association loading individually after an eager load?

  - by codeman73

  I'm trying to avoid the N+1 queries problem with eager loading, but it's not working. The associated models are still being loaded individually. Here are the relevant ActiveRecords and their relationships: class Player < ActiveRecord::Base has_one :tableau end Class Tableau < ActiveRecord::Base belongs_to :player has_many :tableau_cards has_many :deck_cards, :through => :tableau_cards end Class TableauCard < ActiveRecord::Base belongs_to :tableau belongs_to :deck_card, :include => :card end class DeckCard < ActiveRecord::Base belongs_to :card has_many :tableaus, :through => :tableau_cards end class Card < ActiveRecord::Base has_many :deck_cards end and the query I'm using is inside this method of Player: def tableau_contains(card_id) self.tableau.tableau_cards = TableauCard.find :all, :include => [ {:deck_card => (:card)}], :conditions => ['tableau_cards.tableau_id = ?', self.tableau.id] contains = false for tableau_card in self.tableau.tableau_cards # my logic here, looking at attributes of the Card model, with # tableau_card.deck_card.card; # individual loads of related Card models related to tableau_card are done here end return contains end Does it have to do with scope? This tableau_contains method is down a few method calls in a larger loop, where I originally tried doing the eager loading because there are several places where these same objects are looped through and examined. Then I eventually tried the code as it is above, with the load just before the loop, and I'm still seeing the individual SELECT queries for Card inside the tableau_cards loop in the log. I can see the eager-loading query with the IN clause just before the tableau_cards loop as well. EDIT: additional info below with the larger, outer loop Here's the larger loop. It is inside an observer on after_save def after_save(pa) @game = Game.find(turn.game_id, :include => :goals) @game.players = Player.find :all, :include => [ {:tableau => (:tableau_cards)}, :player_goals ], :conditions => ['players.game_id =?', @game.id] for player in @game.players player.tableau.tableau_cards = TableauCard.find :all, :include => [ {:deck_card => (:card)}], :conditions => ['tableau_cards.tableau_id = ?', player.tableau.id] if(player.tableau_contains(card)) ... end end end

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• How to remove duplication from RSpec

  - by Asa

  context "answer is correct" do before(:each) do @answer = stub_model(Answer, :correct => true).as_new_record assigns[:answer] = @answer render "answers/summarize" end it "should display flashcard context properly" do response.should contain("Quiz") end it "should summarize results" do response.should contain("is correct") end end context "answer is incorrect" do before(:each) do @answer = stub_model(Answer, :correct => false).as_new_record assigns[:answer] = @answer render "answers/summarize" end it "should display flashcard context properly" do response.should contain("Quiz") end it "should summarize results" do response.should contain("is incorrect") end end How do I avoid repeating the following block within both of the above contexts? it "should display flashcard context properly" do response.should contain("Quiz") end

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• My helper methods in controller

  - by FancyDancy

  My app should render html, to answer when a user clicks ajax-link. My controller: def create_user @user = User.new(params) if @user.save status = 'success' link = link_to_profile(@user) #it's my custom helper in Application_Helper.rb else status = 'error' link = nil end render :json => {:status => status, :link => link} end My helper: def link_to_profile(user) link = link_to(user.login, {:controller => "users", :action => "profile", :id => user.login}, :class => "profile-link") return(image_tag("/images/users/profile.png") + " " + link) end I have tried such methods: ApplicationController.helpers.link_to_profile(@user) # It raises: NoMethodError (undefined method `url_for' for nil:NilClass) and: class Helper include Singleton include ApplicationHelper include ActionView::Helpers::TextHelper include ActionView::Helpers::UrlHelper include ApplicationHelper end def help Helper.instance end help.link_to_profile(@user) # It also raises: NoMethodError (undefined method `url_for' for nil:NilClass) In addition, yes, I KNOW about :helper_method, and it works, but i don't want to overload my ApplicationController with a plenty of that methods

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• Devise routes to only use custom sign in page

  - by eblume

  I am trying to learn Devise and seem to have hit a problem that is nearly the same as many, many questions here on SO but just slightly different enough that I am not getting much traction following those questions' threads. I have a very simple application. Users can sign in and sign out (and also the devise 'forgot password' stuff is enabled - I am not concerned about it at this time) and that is it. They can't register, they can't edit their profile other than to change their password, they can't do anything except sign in and sign out. (Account creation will, for now, be handled manually at the command line.) I would vastly prefer that the only page that users can log in from was "/" (root_path). I already have it working where you can log in from "/", and that is great. The problem I am having is that if you type in your user/password combination incorrectly from the root_path login page, it automatically sends you to the Devise sign-in page to continue trying to sign in. How can I make Devise redirect to root_path on sign-in failure? Here are my routes - they are probably not optimal or correctly configured and I would appreciate pointers on fixing them: root to: "core_pages#splash" devise_for :users, skip: [:sessions] as :user do # get 'signin' => 'devise/sessions#new', as: :new_user_session post 'signin' => 'devise/sessions#create', as: :user_session delete 'signout' => 'devise/sessions#destroy', as: :destroy_user_session, via: Devise.mappings[:user].sign_out_via end match '/home' => 'core_pages#home' Note the commented-out 'get signin' line. The system works without this line but, surprisingly (to me), "GET /signin" results in a HTTP 400 (OK) response and renders the Devise login template. I would prefer it return some sort of 'invalid request' or just silently redirect the user to root_path. Running rake routes on these routes gives: root / core_pages#splash user_password POST /users/password(.:format) devise/passwords#create new_user_password GET /users/password/new(.:format) devise/passwords#new edit_user_password GET /users/password/edit(.:format) devise/passwords#edit PUT /users/password(.:format) devise/passwords#update user_session POST /signin(.:format) devise/sessions#create destroy_user_session DELETE /signout(.:format) devise/sessions#destroy home /home(.:format) core_pages#home Thanks!

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• Rails: Need a helping hand to finish this Jquery/Ajax problem.

  - by DJTripleThreat

  Here's my problem: I have a combo box that when its index changes I want a div tag with the id="services" to repopulate with checkboxes based on that comboboxes value. I want this to be done using ajax. This is my first time working with ajax for rails so I need a helping hand. Here is what I have so far: My application.js file. Something that Ryan uses in one of his railscasts. This is supposed to be a helper method for handling ajax requests. Is this useful? Should I be using this?: //<![CDATA[ $.ajaxSetup({ 'beforeSend': function(xhr) {xhr.setRequestHeader("Accept","text/javascript")} }); // This function doesn't return any results. How might I change that? Or // should I have another function to do that? $.fn.submitWithAjax = function() { this.submit(function() { $.post($(this).attr("action"), $(this).serialize(), null, "script"); return true; }); }; //]]> An external javascript file for this template (/public/javascripts/combo_box.js): //<![CDATA[ $(document).ready(function(){ $('#event_service_time_allotment').change(function () { // maybe I should be using submitWithAjax(); ?? $(this).parent().submit(); }); }); //]]> My ???.js.erb file. I'm not sure where this file should go. Should I make an ajax controller?? Someone help me out with that part please. I can write this code no problem, I just need to know where it should go and what the file name should be called (best practices etc): // new.js.erb: dynamic choices... expecting a time_allotment alert('test'); // TODO: Return a json object or something with a result set of services // I should be expecting something like: // params[:event_service][:time_allotment] i think which I should use // to return a json object (??) to be parsed or rendered html // for the div#services. Here is my controller's new action. Am I supposed to respond to javascript here? Should I make an ajax controller instead? What's the best way to do this?: # /app/controllers/event_services_controller.rb def new @event_service = EventService.new respond_to do |format| format.html # new.html.erb format.xml { render :xml => @event_service } format.js # should I have a javascript handler here? i'm lost! end end My /app/views/event_service/new.html.erb. My ajax call I think should be a different action then the form: <% content_for :head do %> <%= javascript_include_tag '/javascripts/combo_box.js' %> <% end %> <% form_for @event_service, :url => admin_events_path, :html => {:method => :post} do |f| %> <!-- TimeAllotment is a tabless model which is why this is done like so... --> <!-- This select produces an id of: "event_service_time_allotment" and a name of: "event_service[time_allotment]" --> <%= select("event_service", "time_allotment", TimeAllotment.all.collect {|ta| [ta.title, ta.value]}, {:prompt => true}) %> Services: <!-- this div right here needs to be repopulated when the above select changes. --> <div id="services"> <% for service_type in ServiceType.all %> <div> <%= check_box_tag "event_service[service_type_ids][]", service_type.id, false %> <%=h service_type.title %> </div> <% end %> </div> <% end %> ok so right now ALL of the services are there to be chosen from. I want them to change based on what is selected in the combobox event_service_time_allotment. Thanks, I know this is super complicated so any helpful answers will get an upvote.

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• how to organize javascripts using rails and jquery

  - by VP

  Hi, i'm working in a big and rich rails web application using tons of javascript. I would like to know if anybody has a tip to organize the javascripts. Today i'm generating a new file named controller.js and adding it to my views using content_for. The problem is, some files are becoming big and sometimes, i need a function from one controller in another, so then in the end, i add a products.js to a details controller just to keep DRY. Is that solution good? Any other tip? I think the same pattern can be applied as well to css files?

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• belongs_to with a custom class_name not producing proper foreign key in Rails 3

  - by Tony

  I am updating an application to Rails 3 and I am having trouble creating a custom foreign key. I have something like this: class Product < ActiveRecord::Base belongs_to :owner, :class_name => 'User' ... end class User < ActiveRecord::Base has_many :products ... end class ProductsController < ApplicationController before_filter :authenticate_user! def index @products = current_user.products end end The view: <%- @products.each do |p| -%> <%= p.created_at %><br /> <%- end -%> I get this error in my Rails log: Mysql::Error: Unknown column 'products.user_id' in 'where clause': SELECT `products`.* FROM `products` WHERE (`products`.user_id = 1) It should see the belongs_to :owner and look for a foreign key called owner_id. I even tried explicitly setting the foreign key and that does not work. I also checked lighthouse for a possible Rails 3 bug but no luck.

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• how to monitor if the connectivity between the rails apps and mysql database is established

  - by anusuya

  How do we monitor that the connectivity between the rails app and the database is established. will rails try to re-connect the connection with mysql if it closes?

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• Why does font-size only work when I set background-color on a button?

  - by Andrew Latham

  I am in Rails 3.2.6, on Chrome. I have the following code in my html.erb file: <div id="beta"> <%= form_tag({}, {:id => "id_search"}) do %> ID: <%= text_field_tag "beta_id" %> <%= submit_tag "Go" %> <% end %> </div> When I set the font-size to 24pt in my CSS file, the text field changes properly, but the button doesn't change at all. I pulled it up in my Developer Tools, and it was getting the CSS property, but just not changing its font size. Even when I put !important, nothing happened. I couldn't change the font-family either. JSFiddle: http://jsfiddle.net/R5CXg/ Changing other properties worked. When I changed the background-color property, the button suddenly turned square instead of round, and popped into the correct font-size and font-family. Why was this the case and how can I work around it?

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• Haml formatting

  - by mathee

  I'm new to haml, so I'm still trying to figure out the formatting. I have an index.haml file with the following code. %h1 Welcome to Solidarity Hello, = @profile.first_name ! It renders like this: Welcome to SolidarityHello, user ! Here's the page source: <h1> Welcome to Solidarity </h1> Hello, frances ! It has a space between @profile.first_name and the exclamation mark. Why is that? And, how do I fix it?

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• Rails - Debugging Nested Routes

  - by stringo0

  Hi, I have 2 models, Assessments and Questions. Assessments have many questions. In routes, I have: map.resources :assessments, :has_many => :questions map.root :assessments I checked rake routes, it's as expected On the form to create a new question, I get the following error: undefined method `questions_path' for #<ActionView::Base:0x6d3cdb8> If I take out the form, the view loads fine, so I think it's something with the code in this view - I'm getting the error on the form_for line: <h1>New question</h1> <% form_for [@assessment, @question] do |f| %> <%= f.error_messages %> <p> <%= f.label :content %><br /> <%= f.text_field :content %> </p> <p> <%= f.submit 'Create' %> </p> <% end %> <%= link_to 'Cancel', assessment_path(@assessment) %> Link to rake routes, if needed - http://pastebin.com/LxjfmXQw Can anyone help me debug it? Thanks!

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• Two models, one STI and a Validation

  - by keruilin

  Let's say I have two tables -- Products and Orders. For the sake of simplicity assume that only one product can be purchased at a time so there is no join table like order_items. So the relationship is that Product has many orders, and Order belongs to product. Therefore, product_id is a fk in the Order table. The product table is STI -- with the subclasses being A, B, C. When the user orders subclass Product C, two special validations must be checked on the Order model fields order_details and order_status. These two fields can be nil for all other Product subclasses (ie A and B). In other words, no validation needs to run for these two fields when a user purchases A and B. My question is: How do I write validations (perhaps custom?) in the Order model so that the Order model knows to only run the validations for the two fields -- order_details and order_status -- when Product subclass C is being saved to the orders table?

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• rails update whole index of a model with one click

  - by mattherick

  hello! i have a store model, this will handle my leaflet and my shoppingcart for my shop. now i d´like to show all items added from an user to his leaflet in the index of store. in the store an user can change the quantity of the choosen items. and now i want to save that the changes of the different quantities in the database with one click on a button "update store". so how could i implement an update over the whole index with one click? i´d like to do this with ajax and most dynamically. somebody has an idea? i render all items into a form so far, but now i have the problem, when i submit this form only the last quantity and item id are included in the params. further i pushed every quantity into an array and i want to submit this also as a param. but i could not. please give me some tips, will be very fine :) mattherick

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• MIgrations ans Rspec

  - by pablorc

  Hi, I'm developing a Rails application with Rspec for unit testing. Weeks ago, Rspec used to migrate the database to the last version automatically when executing 'rake spec', but now it doesn't do it automatically, I have to implement everything for myself. This happens in test environment, because my development data doesn't desappear. Is my fault? I didn't change anything, I think :) Thanks in advance.

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• How can I refactor out needing so many for-loops in rails?

  - by Angela

  I need help refactoring this multi-loop thing. Here is what I have: Campaign has_many Contacts Campaign also has many templates for EVent (Email, Call, and Letter). I need a list of all the Emails, Calls and Letters that are "overdue" for every Contact that belongs to a Campaign. Overdue is determined by a from_today method which looks at the date the Contact was entered in the system and the number of days that needs to pass for any given Event. from_today() outputs the number of days from today that the Event should be done for a given Contact. Here is what I've done, it works for all Emails in a Campaign across all contacts. I was going to try to create another each do loop to change the class names. Wasn't sure where to begin: named_scope, push some things into a method, etcetera, or -- minimum to be able to dynamically change the class names so at least it loops three timees across the different events rather than repeating the code three times: <% @campaigns.each do |campaign| %> <h2><%= link_to campaign.name, campaign %></h2> <% @events.each do |event| %> <%= event %> <% for email in campaign.emails %> <h4><%= link_to email.title, email %> <%= email.days %> days</h4> <% for contact in campaign.contacts.find(:all, :order => "date_entered ASC" ) %> <% if (from_today(contact, email.days) < 0) %> <% if show_status(contact, email) == 'no status'%> <p> <%= full_name(contact) %> is <%= from_today(contact,email.days).abs%> days overdue: <%= do_event(contact, email) %> </p> <% end %> <% end %> <% end %> <% end %> <% end %> <% end %>

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