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  • RMagick returns nil reading JPEG

    - by ysproduction
    When I try to open a JPEG format file in Rails using RMagick, it always return nil with any jpg file. Other file formats open well. $ script/console Loading development environment (Rails 2.3.4) >> require 'RMagick' >> img = Image.read("1.gif").first => 1.gif GIF 230x100 230x100+0+0 PseudoClass 256c 8-bit 2kb >> img = Image.read("1.png").first => 1.png PNG 1280x800 1280x800+0+0 DirectClass 8-bit 156kb >> img = Image.read("1.jpg").first => nil Why this happens?

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  • App session cookie not being created in Rails, sporadically

    - by James
    Hi everyone, This is an issue sporadically for very few users, however we haven't been able to replicate it. However I have now got a Chrome instance (Mac) which is reproducing the error (for some unknown reason), and I hope to not restart it until I have this nailed! Rails application, using memcached for session store. While the bug manifests in the _app_session_id cookie not being created, our javascript-generated cookie test and app-generated language cookies are being created successfully. This means that InvalidAuthenticityToken errors are thrown for every form that is submitted by those afflicted - people can't log into the app. The error occurs across all browsers - had reports for IE7 and Firefox (which most users use). Switching to another browser often fixes the issue (though not always), and standard cache-cookie-clear tactics do not. So now that I have got Chrome open which is having the same issue - in development, staging and live environments (meaning http and https). All other browsers are fine. I've restarted the servers and restarted memcached. I don't really want to restart Chrome - in the risk that the issue does go away with that (having said that, it hasn't worked for users). I've been tcpdumping the requests - and although I'll keep digging, I'd love it if anyone had any suggestions, places to start looking, anything. This is really painful ;) Thanks!

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  • Basecamp API Rails

    - by dannymcc
    Hi Everyone, I was wondering if someone could do me massive favour.. I really don't understand how to make use of API's - so I was wondering if, using Basecamp as an example, someone could talk me though the basics. So far I have an application with a dashboard controller/view, I have put basecamp.rb into my /lib directory, added the following to my application_controller: def basecamp_connect Basecamp.establish_connection!('XXXXXX.basecamphq.com', 'USER', 'PASS', false) @basecamp = Basecamp.new end Obviously changing the required parts to my credentials. Next up I have added the following to my dashboard_controller: def index Basecamp::TodoList.find(:all) end Next I presume I have to somehow list the Todo's on the dashboard using some sort of loop. Am I doing the right thing, if so - how on earth do I display all the todo items and if not - what am I doing wrong/missing. It doesn't have to be todo's, anything from basecamp or any other popular API service would be a good start. It's just that I happen to have a basecamp account! Thanks, Danny

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  • TextMate tips for Rails Development

    - by Ganesh Shankar
    Working on Rails code for a bit has started me on the spiral into obsessively customising my dev environment (I say obsessive as at the last Rails meetup I went to there was some guy who was raving about shaving milliseconds off each line of code and therefore upto half an hour a day... I hope I don't become that guy...) I spend most of my time in TextMate so it seemed like a great place to start the optimising... So far I've added a few TextMate bundles like Git Bundle, Project Plus and the theme from Railscasts. I've noticed some of the other TextMate users I've come into contact with using heaps of nifty keyboard shortcuts and other plugins to help make their dev environment more friendly. Looking around the net, I was a bit overwhelmed by the amount of shortcuts and plugins available... So I was hoping to hear from other Rails developers out there: What are some good keyboard shortcuts and plugins that I should be aware of for TextMate with specific reference to Rails Development? I've read this question on SO: http://stackoverflow.com/questions/99807/what-are-some-useful-textmate-shortcuts but I was wondering if there was something a bit more specific to Rails development.

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  • Which persistent & lightweight queue messaging for cross domain (> 2) data exchange with rails integ

    - by Erwan
    Hi all, I'm looking for the right messaging system for my needs. Can you help me ? For now, there won't be a huge amount of data to process, but I don't want to be limited later ... The machines are not just web servers, so the messaging tool should be lightweight, even if processing is not very speed. When some data change on a server, all servers should have the information and process it locally. (should I create one channel per server on each of them ?) The frontend is written on Rails, so it is important, in order to simplify the development, that there is a gem / plugin to manage communications and data sent. At this time : RabbitMQ + workling seems to fit my needs. Could this be a right choice ? ActiveMQ make me afraid, because of Java (I really don't know very well Java, but it seems to me to be big CPU consumer) Others don't seem to be as mature as them. There might be lot of development using this kind of technology, so I can't go to the wrong way ! Thank you for help.

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  • Using a dynamic number of checkboxes in a rails form

    - by TenJack
    I am trying to create a form with a dynamic number of checkboxes that each link to a string that is not a model number but is instead just a word. For examples: <% form_for(@words) do |f| %> <% ["apple","banana","orange"].each do |word| %> <%= f.check_box :word %> <%= f.submit %> <% end %> <% end %> So, if "apple" was checked, it would just send the string "apple" in the params. Anyone know how to do this?

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  • Why can't I set boolean columns with update?

    - by Benjamin Oakes
    I'm making a user administration page. For the system I'm creating, users need to be approved. Sometimes, there will be many users to approve, so I'd like to make that easy. I'm storing this as a boolean column called approved. I remembered the Edit Multiple Individually Railscast and thought it would be a great fit. However, I'm running into problems which I traced back to ActiveRecord::Base#update. update works fine in this example: >> User.all.map(&:username) => ["ben", "fred"] >> h = {"1"=>{'username'=>'benjamin'}, "2"=>{"username"=>'frederick'}} => {"1"=>{"username"=>"benjamin"}, "2"=>{"username"=>"frederick"}} >> User.update(h.keys, h.values) => ... >> User.all.map(&:username) => ["benjamin", "frederick"] But not this one: >> User.all.map(&:approved) => [true, nil] >> h = {"1"=>{'approved'=>'1'}, "2"=>{'approved'=>'1'}} >> User.update(h.keys, h.values) => ... >> User.all.map(&:approved) => [true, nil] Chaging from '1' to true didn't make a difference when I tested. What am I doing wrong?

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  • SQLServer Binary Data with ActiveRecord and JDBC

    - by John Duff
    I'm using the activerecord-jdbc-adapter with ActiveRecord to be able to access a SQLServer database for Rails Application running under jRuby and am having trouble inserting binary data. The Exception I am getting is below. Note I just have a blurb for the binary data from the fixtures that was working fine for MySQL. ActiveRecord::StatementInvalid: ActiveRecord::ActiveRecordError: Operand type clash: nvarchar is incompatible with image: INSERT INTO blobstorage_datachunks ([id], [datafile_id], [chunk_number], [data]) VALUES (369397133, 663419003, 0, N'GIF89a@') When I created the tables the migration had binary and SQLServer used Image instead. We're using Rails 2.3.5, SQLServer Express 2008. What I'm looking for is a way to get the binary data into SQLServer with ActiveRecord. Thanks in advance for the help.

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  • Admin interface in Rails

    - by yuval
    I have an admin controller located in controllers/admin/admin_controller.rb I also have a pages controller located in controllers/admin/pages_controller.rb pages_controller.rb inherits from admin_controller.rb in routes.rb, I have an admin namespace as such: map.namespace :admin do |admin| admin.resources :pages end I want the admin have basic CRUD functionality in pages_controller.rb (I know how to do that) I want the index and show methods to be available to front-end users I would like the show and index actions to use separate views, but the same code. Questions: Should I create a new pages_controller for the front-end, or share the methods index and show? If share, how would I display separate views depending on whether the url is /admin/pages or /pages If share, should I place pages_controller in /controllers/admin (where it is now) or just in /controllers? Thank you very much.

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  • Pasting images in TinyMCE on rails app

    - by Sam Kong
    Hi, I found a weird problem with TinyMCE editor. Copying & pasting images from another domain works fine but if the images are on the same domain the path are relative but not correct sometimes. I figured out that the problem is related to the rails URL scheme. Example) Images are copied from http://mydomain.com/index.html page and the real images path is http://mydomain.com/photos/image.jpg. Editor page: http://mydomain.com/posts/new = image path is set as ../photos/image.jpg http://mydomain.com/posts/edit/123 = image path is set as ../../photos/image.jpg So I tried http://mydomain.com/posts/new/ and it worked. How do I solve this problem? Thanks. Sam

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  • how to add styles to actionview helper tags?

    - by ZX12R
    how do i add styles to actionviews helper tags. like the following <%= link_to "Home", :controller=> "home", :action=> "index", :style=>{:position=>"absolute", :top=>"0px"} %> is something like the above achievable. I dont want to add css classes. Thanks.

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  • Parsing / Extracting Text from String in Rails?

    - by user641116
    I have a string in Rails, e.g. "This is a Twitter message. #books War & Peace by Leo Tolstoy. I love this book!", and I want to parse the text and extract only certain phrases, like "War & Peace by Leo Tolstoy". Is this a matter of using Regex and lifting the text between "#books" to "."? What if there's no structure to the message, like: "This is a Twitter message #books War & Peace by Leo Tolstoy I love this book!" or "This is a Twitter message. I love the book War & Peace by Leo Tolstoy #books" How can I reliably pull the phrase "War & Peace by Leo Tolstoy" without knowing the phrase ex ante. Are there any gems, methods, etc. that can help me do this? At the very least, what would you call what I'm trying to do? It will help me search for a solution on Google. I've tried a few searches on "parsing" with no luck.

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  • Cucumber Error: Socket Error for Test Environment Host in REST API

    - by tmo256
    I posted this to the Cucumber group with no replies, which makes me wonder if this is actually a cucumber issue or not. I'm pretty new to cucumber, and there are a number of things I really don't quite understand about how the cucumber environment is set up and executed within the test environment. I have a REST API rails app I'm testing with cucumber, using the RestClient gem to generate a post to controller create action. When I run the feature with a hard-coded URL pointing to a running localhost server (my local dev server environment; replacing tickets_url with "http:// localhost/tickets" in the snippet below), my cucumber steps execute as expected. However, when the resource URL resolves to the cucumber host I'm declaring, I get a socket error exception. getaddrinfo: nodename nor servname provided, or not known (SocketError) From the steps file: When /^POS Adapter sends JSON data to the Tickets resource$/ do ticket = { :ticket = { ... } } host! "test.host" puts tickets_url RestClient.post tickets_url, ticket.to_json, :content_type = :json, :accepts = :json end (the "puts" statement prints "http://test.host/tickets") Using the following gems: cucumber-0.6.1 webrat-0.6.0 rest-client-1.2.0 I should also say I have a similar set up in another rails app, using test.host as my host, and it seems to work fine. I'd appreciate any insight on what I might be missing in my configuration or what this could be related to.

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  • Rails, REST Architecture and HTML 5: Cross domain requests with pre-flight requests

    - by Orion
    While working on a project to make our site HTML 5 friendly, we were eager to embrace the new method for Cross Domain requests (no more posting through hidden iframes!!!). Using the Access Control specification we begin setting up some tests to verify the behaviour of various browsers. The current Rails RESTful architecture relies on the four HTTP verbs: GET, POST, PUT, DELETE. However in the Access Control spec, it dictates that non-simple methods (PUT, DELETE) require a pre-flight request using the HTTP verb OPTIONS. In addition during testing we discovered that Firefox 3.5.8 pre-flight POST requests as well. My question is this. Is anyone aware of any project for the Rails framework working to address the issue? If not, any opinions about the best strategy to support the OPTIONS method, since it has to support the routes for all the POST, PUT, DELETE methods?

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  • Getting a full list of the URLS in a rails application

    - by Laurie Young
    How do I get a a complete list of all the urls that my rails application could generate? I don't want the routes that I get get form rake routes, instead I want to get the actul URLs corrosponding to all the dynmically generated pages in my application... Is this even possible? (Background: I'm doing this because I want a complete list of URLs for some load testing I want to do, which has to cover the entire breadth of the application)

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  • Changing Render Kits in Browser

    - by John
    I'm working on a project to develop a cross-browser testing web app. Simply put, I'm tired of having to maintain multiple browsers on the same system and IE in VMware solely for the purpose of testing. Does anyone know if there is any way to change the render kit programmatically? For example, if I insert a URL, I would be able to load the URL and switch the browser render within a frame of some assortment. I am experienced with PHP, JS, and RoR if there is a solution using any of those. Thank you! John

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  • Parsing atom/rss feed containing multiple <link> tags with Haml on RoR

    - by fenderplayer
    So, firstly, heres an atom feed snippet which i am trying to parse: // http://somelink.com/atom <feed xmlns="http://www.w3.org/2005/Atom"> <entry> <title>Title Here</title> <link href="http://somelink.com/link1&amp;amp;ref=rss" rel="alternate" /> <link href="http://somelink.com/link2&amp;amp;ref=rss" rel="tag:somelink.com/apply_url"/> ... </entry> i pull the atom feed like so, // In controller index method @rss = SimpleRSS.parse open('http://somelink.com/atom') Then i output the response in the view, which i am writing using haml, as follows: - @rss.entries.each do |item| .title-div = item.title .title-link = item.link //outputs the first link I could run a second loop for the links but is there a way to get the second link without it? Like reading the "rel" attribute and outputting the correct link? How do i do this in haml/rails?

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  • Difficulty screen scraping http://www.momondo.com using nokogiri

    - by Khai Kiong
    I have some difficulty to extract the total price (css selector = '.total') from the flight result. http://www.momondo.com/multicity/?Search=true&TripType=oneway&SegNo=1&SO0=KUL&SD0=KBR&SDP0=31-12-2012&AD=2&CA=0,0&DO=false&NA=false#Search=true&TripType=oneway&SegNo=1&SO0=KUL&SD0=KBR&SDP0=31-12-2012&AD=2&CA=0,0&DO=false&NA=false I get the error "undefined method `text' for nil:NilClass nokogiri ". My code desc "Fetch product prices" task :fetch_details => :environment do require 'nokogiri' require 'open-uri' include ERB::Util OneWayFlight.find_all_by_money(nil).each do |flight| url = "http://www.momondo.com/multicity/Search=true&TripType=oneway&SegNo=1&SO0=KUL&SD0=KBR&SDP0=31-12-2012&AD=2&CA=0,0&DO=false&NA=false#Search=true&TripType=oneway&SegNo=1&SO0=KUL&SD0=KBR&SDP0=31-12-2012&AD=2&CA=0,0&DO=false&NA=false" doc = Nokogiri::HTML(open(url)) price = doc.at_css(".total").text[/[0-9\.]+/] flight.update_attribute(:price, price) end end

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  • How to match filetype with regular expression?

    - by Sanarothe
    Hi. I'm stuck trying to get a regex to match a filetype in a sorting script. Dir.foreach(savedirs[0]) do |x| puts "Matching " + x + " against filetypes." case x when x.match(/^.*\.exe$/i) then puts x when x.match(/\.jpe?g$/) then FileUtils.move(x, sortpath[".exe"], :verbose => true) when x =~ /\.jpg$/ then FileUtils.move(x, sortpath[".jpg"]) end end I can't get any of these to match on in windows. All I need is to confirm that a given filename matches against compatible filetypes.

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  • Rails: Passing new child object placeholder (build) to parent view

    - by Meltemi
    I've got 2 classes of objects... Magician has_many Rabbits and Rabbit belongs_to Magician. When viewing a Magician (show.html) I'd like to list all the associated Rabbits and then have some blank fields with a submit button to add a new Rabbit. To do so I build a new rabbit (associated to the current magician) in the Magician's show method (below). Edit2: found way to make it work but not sure if it's the "Rails way"? see comments inline (below): If I build the rabbit in Magician's show method then when show is rendered an empty (and invalid) rabbit ends the list before the new rabbit form fields are then shown. If I build it in the view itself then everything works & renders correctly. I was led to believe that we should not be doing this type of stuff in the view...if so, what's the proper way to address this? #/app/controllers/magicians_controller.rb class MagiciansController < ApplicationController respond_to :html, :json def show @magician = Magician.find(params[:id]) @rabbit = @magician.rabbits.build # <=== build here and empty rabbit gets # included in @magician.rabbits when they're rendered... # but is NOT included in @magician.rabbits.count for some reason?!?!? respond_with(@magician) end ... end #view/magicians/show.html.haml %p %b Name: = @magician.name %h2 Rabbits = "There are #{pluralize(@magician.rabbits.count, "rabbit")}" = render @magician.rabbits, :target => @magician %h2 Add a rabbit: - @rabbit = @clown.rabbits.build -# <=== build here and everything SEEMS to work = render :partial =>"rabbits/form", :locals => { :parent => @magician, :foreign_key => :magician_id, :flash => flash } Edit1: Adding generated html from partial as per request: <p> <b>Rabbit:</b> <b>Color:</b> | <b>ID:</b> <a href="/magicians/2/rabbits" data-confirm="Sure? A bunny will die" data-method="delete" rel="nofollow">Kill Rabbit</a> </p> And I suppose you probably want to see the partial that generates this: %p %b Rabbit: = rabbit.name %b Color: = rabbit.color | %b ID: = rabbit.id = link_to("Kill Rabbit", [target, rabbit], :method => :delete, :confirm => "Sure? A bunny will die")

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  • Why do you have to explicitly specify scope with friendly_id?

    - by nfm
    I'm using the friendly_id gem. I also have my routes nested: # config/routes.rb map.resources :users do |user| user.resources :events end So I have URLs like /users/nfm/events/birthday-2009. In my models, I want the event title to be scoped to the username, so that both nfm and mrmagoo can have events birthday-2009 without them being slugged. # app/models/event.rb def Event < ActiveRecord::Base has_friendly_id :title, :use_slug => true, :scope => :user belongs_to :user ... end I'm also using has_friendly_id :username in my User model. However, in my controller, I'm only pulling out events pertinent to the user who is logged in (current_user): def EventsController < ApplicationController def show @event = current_user.events.find(params[:id]) end ... end This doesn't work; I get the error ActiveRecord::RecordNotFound; expected scope but got none. # This works @event = current_user.events.find(params[:id], :scope => 'nfm') # This doesn't work, even though User has_friendly_id, so current_user.to_param _should_ return "nfm" @event = current_user.events.find(params[:id], :scope => current_user) # But this does work! @event = current_user.events.find(params[:id], :scope => current_user.to_param) SO, why do I need to explicitly specify :scope if I'm restricting it to current_user.events anyway? And why does current_user.to_param need to be called explicitly? Can I override this?

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  • How to log into a salesforce.com sandbox?

    - by wesgarrison
    I took over a Rails app and am trying to get the Salesforce.com API credentials set up for my user account. I'm set as a system admin with "Developer Mode" on (though I have no clue what that does, I just saw it set on the previous account.) We have a sandbox. I click the login link on it, enter my sandbox username ([email protected]), enter my password, and get "Login attempt has failed". I know my password is okay since I've logged into the production site several times. Using different domains (test.salesforce.com, etc) doesn't help either.

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  • #validate does not seem to work correctly with :on => :create/:update

    - by Tobias
    Greetings, I have a custom validation in my exemplary Movie model: class Movie < ActiveRecord::Base validate :it, :on => :create private def it self.errors.add 'foo', 'bar' end end This works on movie creation but also on updating an existing movie. :on => :update will also work for both. Might that be a bug or am I missing something? Best regards Tobias

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  • Sinatra Gem install error

    - by lakshmanan
    I have been trying to install sinatra in a macbook running leopard system, and I am not able to do it. I get the following error. MacBook:rubygems-1.3.7 lakshmanan$ gem install sinatra WARNING: RubyGems 1.2+ index not found for: http://rubygems.org/ RubyGems will revert to legacy indexes degrading performance. Bulk updating Gem source index for: http://rubygems.org/ ERROR: While executing gem ... (NoMethodError) undefined method `gems' for #<Array:0x101901008> Please help. I reinstalled gems also. Still I get the same error.

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