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• Rails + AMCharts with vertical legend

  - by Elliot

  I followed http://railsontherun.com/2007/10/04/sexy-charts-in-less-than-5-minutes/ to get regular line charts working on my rails app. Now I'm trying to use http://www.amcharts.com/stock/vertical-legend/ but the I seem to be running into issues. Can anyone tell by looking at the tutorial what needs to change to make it work? Thanks, Elliot

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• Session Issue in rails?

  - by piemesons

  Suppose this is my users controller:- class UsersController < ApplicationController def show @user = session[:user] end def prepare session[:user]= User.find(:first) redirect_to :action => 'show' end def update @user = session[:user] @user.name = 'rai' redirect_to :action => 'show' end end View for show.html.erb <%= @user.name %> Show page <%= link_to 'Update', :action=> 'update' %> Now Explaining the issue:--- Suppose first time user opens the browser with http://localhost:3000/users/prepare o/p will be:--- Mohit Show page Update // supposing user table has values mohit as name Now when he click on update he will get as output like this:-- rai Show page Update But this should not happen cause firstly when are at prepare action where value is fecthced from db and its mohit. and then he is redirected to show ie displying the values from session. ie mohit Now when user click on the update he is redirected to update when value from session is stored to a user instance and the name attribute of that user instance has been modified to rai. and finally redirected to show page. Now in this page when user's name is displayed its showing rai.. thats the QUESTION why?? cause session should store the same mohit value cause we havnt made any change in session..

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• A rails migration that specifies the distance between two months..?

  - by Trip

  I would like to make two drop downs. a start time, and an end time. Specifically, I only need months. I would like to, for example, choose January, and then March, and then have the database read that it is the these two months plus February. Is there any out of the box migration that could work? I'm guessing.. script/generate migration AddMonthsToClass beginDate:datetime #through endDate:datetime I apologize ahead of time if my question sounds retarded! Sorry! :D

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• Cucumber, capybara and selenium - Submiting a form without a button

  - by Daniel Cukier

  I have a test using Cucumber, capybara and selenium driver. This test should go to a form and submit it. The normal text would be Scenario: Fill form Given I am on the Form page When I fill in "field1" with "value1" And I fill in "field2" with "value2" And I press "OK" Then I should see "Form submited" The problem is that I don't have the OK button in the form I need a way to do the "form.submit", without clicking any button or link - the same as happens when you press ENTER when you are in a form field using the browser. I don't know how to tell capybara to submit a form. How can I do it?

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• Include dynamic info in Rails emails

  - by Danny McClelland

  Hi Everyone, I have managed to get my email problem sorted so now everytime a case is created an email goes out to the specified address. I have a usermailer.rb def makeakase(email, name, jobno, casesubject) recipients email from "no-reply@your_rails_app.com" subject "FW: Kase creation from Survey Manager" sent_on Time.now body :name => name end and I have the kases_controller.rb: if @kase.save UserMailer.deliver_makeakase("[email protected]", "Highrise") In the body I would like to use the tags that I use in the kase show view such as: <%=h @kase.jobno %> - <%=h @kase.casesubject %> but they don't work, I get the following error: wrong number of arguments (2 for 4) Any ideas? Thanks, Danny

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• Getting Started with CacheMoney

  - by Matt Grande

  I recently installed cache-money. After some difficulties getting memcached and cache-money set up, I thought I had it working. It cached the one query on my login page fine. I login, and go to my message index page and get this error: indices delegated to @cache_config.indices, but @cache_config is nil: Slug(id: integer, name: string, sluggable_id: integer, sequence: integer, sluggable_type: string, scope: string, created_at: datetime) Searching for the first part of that error message returns 0 hits on Google, so I'm at a loss on where to even begin. Any suggestions?

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• How do I run a rake task from Capistrano?

  - by Richard Poirier

  I already have a deploy.rb that can deploy my app on my production server. My app contains a custom rake task (a .rake file in the lib/tasks directory). I'd like to create a cap task that will remotely run that rake task.

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• Mouse movement / mouseover and JavaScript evaluation in watir

  - by Bilal Aslam

  I have a JavaScript-heavy Rails app which I am testing in watir. I have two specific testing requirements: I need to be able to simulate moving the mouse to a specific area of the screen (or at least triggering the onmouseover event for a div) Evaluating a snippet of JavaScript once the above has happened to see if a flag is set correctly I haven't been able to figure out how to do this in watir. Any ideas on how to do this?

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• rails associations - How would you represent this relationship?

  - by truthSeekr

  Hello All, I am trying to figure out a best way to represent the following relationship. Newspaper-->has_many-->Articles Newspaper-->has_many--->Subscribers Subscribers are allowed to save the articles for their personal page. Two Questions: 1) How would the relationship look like in rails? How would the action 'save' look like? The following using has_many does not seem right to me: ArticleController < ApplicationController def save a = Article.find(101) @user.saved_articles << a end 2) Do I need a join table Saved_Articles that looked like this? Saved_Articles ---------------- user_id, article_id I am not sure how the has_many_through works. any advice is appreciated. thanks

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• What CI server and Configuration Management tools I should use

  - by Bera

  Hi ! What CI server and Configuration Management tools I should use together for a truly development and deploy maintenance. There isn't the de facto rails sustainable environment, is there? Some assumptions: • code control version ok - git (de facto tool) • test framework ok - whatever (rspec is my choice) • code coverage and analysis ok - whatever (metric-fu, for example) • server stack ok - (Passenger for example) • issue tracker (RedMine) • etc, ... I'm want to play if integrity and moonshine projects, for me it's a good for beginning, isn't it? What do you think about this? Thanks, Bruno

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• Mongomapper - bootstrapping techniques

  - by egarcia

  I've just begun creating a rails application using mongomapper for my models. I'm wondering what solution should I use for bootstrapping my app with it. All my previous experience is with ActiveRecord & PostgreSQL, in which I have used several gems for bootstrapping. The one I liked the most was bootstrapper (+ factorygirl + faker). Does anyone know whether these work ok with mongomapper? Can anyone suggest better alternatives? Is there anything obvious I need to know when bootstrapping mongodb?

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• Rails - Populate test database with development data

  - by Acidburn2k

  Is there any trivial way to copy the data from developmenet database into the test one? I know theres a way to copy schema and recreate database, but is there any rake task to populate test database with development one?

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• Rails application settings?

  - by Danny McClelland

  Hi Everyone, I am working on a Rails application that has user authentication which provides an administrators account. Within the administrators account I have made a page for sitewide settings. I was wondering what the norm is for creating these settings. Say for example I would like one of the settings to be to change the name of the application name, or change a colour of the header. What I am looking for is for someone to explain the basic process/method - not necessarily specific code - although that would be great! Thanks, Danny

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• Rails - embedded polymorphic comment list + add comment form - example?

  - by odigity

  Hey, all. Working on my first Rails app. I've searched all around - read a bunch of tutorials, articles, and forum posts, watched some screencasts, and I've found a few examples that come close to what I'm trying to do (notably http://railscasts.com/episodes/154-polymorphic-association and ep 196 about nested model forms), but not exactly. I have two models (Podcast and BlogPost) that need to be commentable, and I have a Comment model that is polymorphically related to both. The railscasts above had a very similar example (ep 154), but Ryan used a full set of nested routes, so there were specific templates for adding and editing comments. What I want to do is show the list of comments right on the Podcast or BlogPost page, along with an Add Comment form at the bottom. I don't need a separate add template/route, and I don't need the ability to edit, only delete. This is a pretty common design on the web, but I can't find a Rails example specifically about this pattern. Here's my current understanding: I need routes for the create and delete actions, of course, but there are no templates associated with those. I'm also guessing that the right approach is to create a partial that can be included at the bottom of both the Podcast and BlogPost show template. The logical name for the partial seems to me to be something like _comments.html.haml. I know it's a common convention to have the object passed to the partial be named after the template, but calling the object 'comments' seems to not match my use case, since what I really need to pass is the commentable object (Podcast or BlogPost). So, I guess I'd use the locals option for the render partial call? (:commentable = @podcast). Inside the partial, I could call commentable.comments to get the comments collection, render that with a second partial (this time with the conventional use case, calling the partial _comment.html.haml), then create a form that submits to... what? REST-wise, it should be a POST to the collection, which would be /podcast|blogpost/:id/comments, and I think the helper for that is podcast_comments_path(podcast) if it were a podcast - not sure what to do though, since I'm using polymorphic comments. That would trigger the Comment.create action, which would then need to redirect back to the podcast|blogpost path /podcast|blogpost/:id. It's all a bit overwhelming, which is why I was really hoping to find a screencast or example that specifically implements this design.

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• Access Rails 3 Session from Rack?

  - by viatropos

  I was able to do the following in Rails 2.3.5 to access attributes that I set on the session from within my Rails app. Now in Rails 3, env["rack.session"] is nil. How do I do the same thing in Rails 3? class CallbackFilter def initialize(app) @app = app end def call(env) unless env["rack.session"][:oauth_callback_method].blank? env["REQUEST_METHOD"] = env["rack.session"].delete(:oauth_callback_method).to_s.upcase end @app.call(env) end end

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• Session variables with Cucumber Stories

  - by Matthew Savage

  I am working on some Cucumber stories for a 'sign up' application which has a number of steps. Rather then writing a Huuuuuuuge story to cover all the steps at once, which would be bad, I'd rather work through each action in the controller like a regular user. My problem here is that I am storing the account ID which is created in the first step as a session variable, so when step 2, step 3 etc are visited the existing registration data is loaded. I'm aware of being able to access controller.session[..] within RSpec specifications however when I try to do this in Cucumber stories it fails with the following error (and, I've also read somewhere this is an anti-pattern etc...): Using controller.session[:whatever] or session[:whatever] You have a nil object when you didn't expect it! The error occurred while evaluating nil.session (NoMethodError) Using session(:whatever) wrong number of arguments (1 for 0) (ArgumentError) So, it seems accession the session store isn't really possible. What I'm wondering is if it might be possible to (and I guess which would be best..): Mock out the session store etc Have a method within the controller and stub that out (e.g. get_registration which assigns an instance variable...) I've looked through the RSpec book (well, skimmed) and had a look through WebRat etc, but I haven't really found an answer to my problem... To clarify a bit more, the signup process is more like a state machine - e.g. the user progresses through four steps before the registration is complete - hence 'logging in' isn't really an option (it breaks the model of how the site works)... In my spec for the controller I was able to stub out the call to the method which loads the model based on the session var - but I'm not sure if the 'antipattern' line also applies to stubs as well as mocks? Thanks!

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• Rails routes creating additional info in URL

  - by Danny McClelland

  Hi Everyone, Say if I have a model called 'deliver' and I am using the default URL route of: # Install the default routes as the lowest priority. map.connect ':controller/:action/:id' map.connect ':controller/:action/:id.:format' So the deliver URL would be: http://localhost:3000/deliver/123 What I am trying to work out, is how to use another field from the database alongside or instead of the ID. For example. If I have a field in the create view called 'deliveraddress', how do I put that into the routes? So I can have something link this: http://localhost:3000/deliver/deliveraddress Thanks, Danny

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• Determining URLs updated via a series of commit logs

  - by adamrubin

  I'm working on a project where I programmatically need to know when a URL has been changed by a developer, post or during deploy. The obvious answer may be to curl the URL one day, save the output, then curl and in x days then do a diff. That won't work in my case, as I'm only looking for changes the developer mande. If the site is a blog, new comments, user submitted photos, etc would make that curl diff useless. RoR example, using github. Let's assume I have access to the entire repository and all commit logs between iterations. Is there a way I could see that "/views/people/show.html.erb" was commited, then backtrack from there (maybe by inspecting routes.rb), to come up with the URL I can then hit via a browser?

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• Authlogic, logout, credential capture and security

  - by Paddy

  Ok this is something weird. I got authlogic-oid installed in my rails app today. Everything works perfectly fine but for one small nuisance. This is what i did: I first register with my google openid. Successful login, redirection and my email, along with my correct openid is stored in my database. I am happy that everything worked fine! Now when i logout, my rails app as usual destroys the session and redirects me back to my root url where i can login again. Now if i try to login it still remembers my last login id. Not a big issue as i can always "Sign in as a different user" but i am wondering if there is anyway to not only logout from my app but also logout from google. I noticed the same with stack overflow's openid authentication system. Why am i so bothered about this, you may ask. But is it not a bad idea if your web apps end user, who happens to be in a cyber cafe, thinks he has logged out from your app and hence from his google account only to realize later that his google account had got hacked by some unworthy loser who just happened to notice that the one before him had not logged out from google and say.. changed his password!! Should i be paranoid? Isn't this a major security lapse while implementing the openid spec? Probably today someone can give me a workaround for this issue and the question is solved for me. But what about the others who have implemented openid in their apps and not implemented a workaround?

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• Connect rails application to SQL Server 2005 from Windows

  - by Enrico Carlesso

  Hi guys. I (sadly) have to deploy a rails application on Windows XP which has to connect to Microsoft SQL Server 2005. Surfing in the web there are a lot of hits for connect from Linux to SQL Server, but cannot find out how to do it from Windows. Basically I followed these steps: Install dbi gem Install activerecord-sql-server-adapter gem My database.yml now looks like this: development: adapter: sqlserver mode: odbc dsn: test_dj host: HOSTNAME\SQLEXPRESS database: test_dj username: guest password: guest But I'm unable to connect it. When I run rake db:migrate I get IM002 (0) [Microsoft][ODBC Driver Manager] Data source name not found and no default driver specified I'm not a Windows user, so cannot understand really well the meaning of dsn element or so. Does someone have an idea how to solve this? Thanks in advance With Alexander tips now I've modified my database.yml to: development: adapter: sqlserver mode: odbc dsn: Provider=SQLOLEDB;Data Source=SCADA\SQLEXPRESS;UID=guest;PWD=guest;Initial Catalog=test_dj;Application Name=test But now rake db:migrate returns me: S1090 (0) [Microsoft][ODBC Driver Manager] Invalid string or buffer length Am I missing something?

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• Serve Images from Asset Host When Using CSS background-image property in Rails

  - by Moe

  I recently started serving static assets (mainly images) from an asset host for my Rails project. A small portion of my images are not being served from the asset host because they are displayed using the CSS background-image property rather than image_tag Is there are clean workaround for this? I'd rather not create a "stylesheets" controller because I'm using the asset-packager plugin and would like to preserve this functionality. Thanks! Moe

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• Authlogic and password and password confirmation attributes - inaccessible?

  - by adam

  Im trying to test my successfully creates a new user after login (using authlogic). Ive added a couple of new fields to the user so just want to make sure that the user is saved properly. The problem is despite creating a valid user factory, whenever i try to grab its attributes to post to the create method, password and password confirmation are being ommitted. I presuem this is a security method that authlogic performs in the background. This results in validations failing and the test failing. Im wondering how do i get round this problem? I could just type the attributes out by hand but that doesnt seem very dry. context "on POST to :create" do context "on posting a valid user" do setup do @user = Factory.build(:user) post :create, :user => @user.attributes end should "be valid" do assert @user.valid? end should_redirect_to("users sentences index page") { sentences_path() } should "add user to the db" do assert User.find_by_username(@user.username) end end ##User factory Factory.define :user do |f| f.username {Factory.next(:username) } f.email { Factory.next(:email)} f.password_confirmation "password" f.password "password" f.native_language {|nl| nl.association(:language)} f.second_language {|nl| nl.association(:language)} end

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• Rails/ActiveRecord Sub collection

  - by Jake

  I have three models: Store, Author, Books Store has many Authors which has many Books. What is the cleanest way to get a collection of all the books at the store? This works: @store.authors.collect{|a| a.books}.flatten Is there something in Active Record that I'm missing that makes this cleaner? Jake

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• Reloading Sinatra app on every request on Windows

  - by Darth

  I've set up Rack::Reload according to this thread # config.ru require 'rubygems' require 'sinatra' set :environment, :development require 'app' run Sinatra::Application # app.rb class Sinatra::Reloader < Rack::Reloader def safe_load(file, mtime, stderr = $stderr) if file == Sinatra::Application.app_file ::Sinatra::Application.reset! stderr.puts "#{self.class}: reseting routes" end super end end configure(:development) { use Sinatra::Reloader } get '/' do 'foo' end Running with thin via thin start -R config.ru, but it only reloads newly added routes. When I change already existing route, it still runs the old code. When I add new route, it correctly reloads it, so it is accessible, but it doesn't reload anything else. For example, if I changed routes to get '/' do 'bar' end get '/foo' do 'baz' end Than / would still serve foo, even though it has changed, but /foo would correctly reload and serve baz. Is this normal behavior, or am I missing something? I'd expect whole source file to be reloaded. The only way around I can think of right now is restarting whole webserver when filesystem changes. I'm running on Windows Vista x64, so I can't use shotgun because of fork().

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• Library to parse ERB files

  - by Douglas Sellers

  I am attempting to parse, not evaluate, rails ERB files in a Hpricot/Nokogiri type manner. The files I am attempting to parse contain HTML fragments intermixed with dynamic content generated using ERB (standard rails view files) I am looking for a library that will not only parse the surrounding content, much the way that Hpricot or Nokogiri will but will also treat the ERB symbols, <%, <%= etc, as though they were html/xml tags. Ideally I would get back a DOM like structure where the <%, <%= etc symbols would be included as their own node types. I know that it is possible to hack something together using regular expressions but I was looking for something a bit more reliable as I am developing a tool that I need to run on a very large view code base where both the html content and the erb content are important. For example, content such as: blah blah blah <divMy Great Text <%= my_dynamic_expression %</div Would return a tree structure like: root - text_node (blah blah blah) - element (div) - text_node (My Great Text ) - erb_node (<%=)

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