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• testing .mobile mime format with capybara / rspec

  - by Chris Beck

  For detecting and responding to mobile user agents, I'm using Mime::Type.register_alias "text/html", :mobile and the approach I'm wondering what is the best approach to test with capybara. This article suggests setting up an iphone driver with Capybara.register_driver :iphone do |app| http://blog.plataformatec.com.br/2011/03/configuring-user-agents-with-capybara-selenium-webdriver/ but I'd like a more flexible approach where the mime type is set via the url extension localhost/index.mobile and where I can do this visit user_path( format: :mobile) Rails understands the extension and sets the format in the params hash, but how do I get the url helper methods to add that to all urls as a file extension?

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• need help with acts_as_ferret and will_paginate to play nice together

  - by ironmantis7x

  I have installed will_paginate and acts_as_ferret on my system for ruby rails. My paginate seems to work fine before installing acts_as_ferret. When I put in the code to do searching I get the following error: NoMethodError in Community#search Showing app/views/community/_result_summary.rhtml where line #3 raised: undefined method `total_entries' for []:Array Extracted source (around line #3): 1: <% if @users %> 2: <p> 3: Found <%= pluralize(@users.total_entries, "match") %>. 4: </p> 5: <% end %> If I take out the search function, paginate works but it's pointless because I can't do searches. Can any one help me out on this one?? Thanks!! Stephen

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• Full text search for irregular rapper names with Solr

  - by Horace Loeb

  I'm implementing full text search functionality on my rap website, and I'm running into some issues with rapper and song names. For example, someone might want to search for the rapper "Cam'ron" using the query "camron" (leaving out the mid-word apostrophe). Likewise, someone might search for the song "3 Peat" using the query "3peat". "The Notorious B.I.G." is a bit of a weird case: both "The Notorious BIG" and "The Notorious B.I.G." both work (I guess because the solr.StandardFilterFactory removes dots from acronyms?), but "The Notorious B.I.G" (i.e., minus the trailing dot) doesn't. Ideally all reasonable variations of these names should work. I'm guessing the answer has something to do with the solr.WordDelimiterFilterFactory, but I'm not sure. Also, I'm using Sunspot with Rails if that's relevant.

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• Scaffold default files are the best practice?

  - by antpaw

  Hey, i have some experience with MVC. but I'm new to rails. I'm using the scaffold command to generate some default files. The model looks clean and nice, but the controller and the views aren't really dry. The contents of new.html.erb and edit.html.erb are almost the same and the methods new/edit and create/update are doing almost the same thing. In other frameworks i've used only one view for updating and creating new entries and also the same method in my controller by setting the id as an optional parameter. Do they use this structure to keep things RESTful (i have not much of a clue about rest :()? Is it the best practice to use this default stuff for crud?

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• Delayed_Job - on site5 server

  - by Matenia Rossides

  I am currently using a site5 server and would like rake jobs:work pretty much running all the time. I currently cannot send out the jobs unless i'm logged into the server. I hope that someone out there can help me with this. Had alot of trouble with ar_mailer and the whenever gem ... but have about another 5 gems working perfectly within my rails app. can someone shed some light on a solution for this please? greatly appreciated. (installed delayed_job as a plugin)

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• Is there a way to make the flash[:notice] appear above, or before, the flash[:error] ?

  - by GoodGets

  So, I'd like to be able to display both a flash[:notice] and a flash[:error] on the same action, but I'd like for the :notice to always be displayed above (or before) the error. Is there a way to do this? In my controller, I thought I could just code the flash[:error] before the flash[:notice], so that rails will display it correctly, and it does a vast majority of the time. But every now and then they are randomly switched, and I can't seem to figure out why. So, how can I ensure that a flash[:notice] is always displayed above an :error ?

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• Serializing ActiveRecord objects without storing their attributes?

  - by Allan Grant

  I'm working on a problem where I need to store serialized hierarchies of Ruby objects in the database. Many of the objects that will need to be saved are ActiveRecord objects with a lot of attributes. Instead of saving the entire objects and then refreshing their attributes from the DB when I load them (in case they changed, which is likely), it would be easier to just store the references (class and database id) for these objects. Does anyone know if there's already a way to do this in Rails, or if there's an existing gem for it? Wanted to check if something existed before spending a ton of time hacking on it.

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• I want multipart/alternative; ActionMailer only sending text/html

  - by macek

  I'm following the Ruby on Rails Guide: ActionMailer Basics Section 2.7 Snippet: Action Mailer will automatically send multipart emails if you have different templates for the same action. So, for our UserMailer example, if you have welcome_email.text.plain.erb and welcome_email.text.html.erb in app/views/user_mailer, Action Mailer will automatically send a multipart email with the HTML and text versions setup as different parts. Well, I have both: app/views/user_mailer/welcome_mail.text.html.erb app/views/user_mailer/welcome_mail.text.plain.erb app/models/user_mailer.rb class UserMailer < ActionMailer::Base def welcome_mail(user) recipients user.email from "[email protected]" subject "Thanks for registering" body :user => user end end Any luck?

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• locale based sorting function in ruby

  - by railscoder

  For my application(Ruby on Rails) i have country select box for the signup page. These countries are localized into different language. But i couldnt find a way to sort them, based on the language in which its localized. At present i have sorted it out based on english only. Is there a way to sort the country names based on the locale? i.e the order of the countries should change(ascending order) according to the language its localised. Thanks..

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• Sqlite3 activerecord :order => "time DESC" doesn't sort

  - by Ole Morten Amundsen

  rails 2.3.4, sqlite3 I'm trying this Production.find(:all, :conditions = ["time ?", start_time.utc], :order = "time DESC", :limit = 100) The condition works perfectly, but I'm having problems with the :order = time DESC. By chance, I discovered that it worked at Heroku (testing with heroku console), which runs PostgreSQL. However, locally, using sqlite3, new entries will be sorted after old ones, no matter what I set time to. Like this (output has been manually stripped): second entry is new: Production id: 2053939460, time: "2010-04-24 23:00:04", created_at: "2010-04-24 23:00:05" Production id: 2053939532, time: "2010-04-25 10:00:00", created_at: "2010-04-27 05:58:30" Production id: 2053939461, time: "2010-04-25 00:00:04", created_at: "2010-04-25 00:00:04" Production id: 2053939463, time: "2010-04-25 01:00:04", created_at: "2010-04-25 01:00:04" Seems like it sorts on the primary key, id, not time. Note that the query works fine on heroku, returning a correctly ordered list! I like sqlite, it's so KISS, I hope you can help me... Any suggestions?

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• Why are my ActiveRecord class instance variables disappearing after the first request in development

  - by Paul C

  I have a class instance variable on one of my AR classes. I set its value at boot with an initializer and, after that, never touch it again except to read from it. In development mode, this value disappears after the first request to the web server. However, when running tests, using the console or running the production server this does not happen. # The AR class class Group < ActiveRecord::Base class << self attr_accessor :path end end # The initializer Group.path = File.join(RAILS_ROOT, "public", "etc") # First request in a view %p= Group.path #=> "/home/rails/app/public/etc" # Second request in a view %p= Group.path #=> nil Is there something about development mode that nukes instance variables from classes with each request? If so, is there a way to disable this for specific variables or classes?

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• Help getting ActiveScaffold to work properly

  - by x3ro

  Hey there I was curious about the ActiveScaffold Rails plugin, but somehow I can't get it to work properly. I've followed the steps which are described on http://activescaffold.com/tutorials/ . The table and everything shows up and when I click on "Create new", the dialog pops up. However, when I fill out the form and click "Create", I just get "500 Internal server error". In the server log, it says "NameError (wrong constant name ###):", with ### being what I entered in the first form field. If I don't enter anything in the form, it says "NoMethodError (undefined method `new_record?' for #):"... So what am I doing wrong here? Thanks in advance for your help :)

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• Removing all installed Gems and starting over

  - by Dave Long

  I recently started learning Ruby and Ruby on Rails, and have watched a plethora of getting started materials. I have been finding lately that I keep getting errors where gems won't install or they will be installed but they can't be used for some reason, and I have decided that I want to remove everything down to once again just having Ruby installed and start over with the installation. One training video had me install most of my gems with RVM, so I don't know if that changes anything. So in short my question is "How to I get rid of RVM, Rubygems, and all installed Gems so that I can start over with just Ruby?" Edit: I am on Mac OS 10.6

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• remote_function keeps adding authenticity token on GET requests

  - by jaycode

  Hi, I got the problem similar to this post here: https://rails.lighthouseapp.com/projects/8994/tickets/106-authenticity_token-appears-in-urls-after-ajax-get-request routes.rb map.namespace(:admin, :active_scaffold => true) do |admin| admin.resources :regions, :shallow => true do |region| region.resources :birds, :collection => {:search => :get} end end view <%= javascript_tag %Q( #{remote_function(:update => 'bird_search', :url => search_admin_region_birds_path(@region.id), :method => :get)} ) %> It displays url like: http://localhost:3000/admin/regions/7/birds/search?authenticity_token=F43BcQUM4z3bl7s21kLZQrqwGkuErF7C9jiNMKFTZTo%3D which should be: http://localhost:3000/admin/regions/7/birds/search Without this working my Ajax pagination won't work... help!

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• how to handle .something in the url

  - by dorelal

  I am using rails 2.3.5 . I have a resource for event. map.resources :events respond_to do |format| format.html format.js { render :text => @event.to_json, :layout => false } end It is a public site and sometimes I get urls like http://domain.com/events/14159-international-hardware-show-2010+91+"prashant"+2010+OR+email+OR+data+OR+base+-ALIBA.BACOM&hl=en&ct=clnk I keep getting hoptoad exception email. How do I handle such cases?

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• Git + Capistrano = Automatic Release Notes Generator ?

  - by Matt Rogish

  We use git (github) and capistrano (like 99% of the Rails shops out there) to deploy our app to production. What I'd like to do is, after every cap * deploy generate a text file containing all the git commit comments since the last deploy. I can then take that list of commit comments, clean it up, and put it somewhere for consumption. "git log" http://book.git-scm.com/3_reviewing_history_-_git_log.html has plenty of options for fetching log messages, but I don't see an easy way in capistrano to return the current and previous commits, or even the last date/time a deployment occurred, so I can pass that to git log Thoughts? I can't be the first one doing this... Thanks!

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• after_create :create a new line in DB

  - by Karl Entwistle

  Hey guys I was wondering if anyone could help me with an issue im having, basically id like to have Account.create after a PayPal notification is received, There is a simple cart model which corresponds to line_items within the cart so add_account_to_market would look like this in pseudo code def add_account_to_market if status == "Completed" find the line items(via cart_id) that correspond to the cart.id that just been paid create an account with user_id set to the current carts user id end end Ive never tried to do something like this in Rails and its not working, Ive been pulling my hair out all night trying to fix this, hopefully someone can help or point me in the right direction. Thanks :) class PaymentNotification < ActiveRecord::Base belongs_to :cart serialize :params after_create :mark_cart_as_purchased after_create :add_account_to_market private def mark_cart_as_purchased if status == "Completed" cart.update_attribute(:purchased_at, Time.now) cart.update_attribute(:paid, true) end end def add_account_to_market if status == "Completed" l = LineItem.find(:all, :conditions => "cart_id = '#{cart.id}'") for l.quantity Account.new(:user_id => cart.user_id) end end end end PS mark_cart_as_purchased method is working fine, its just the add_account_to_market im having issues with.

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• I want to use the fleximage gem and s3 for storage, but don't want dev/qa/test env's to use s3

  - by Kevin Bedell

  I have a rails app that I'm going to host on engineyard and want to store image files on s3. But I don't know if I want all developer machines to beusing s3 for storage of all our test and dev images. Maybe it's not an issue -- but it seems like a waste to have everyone storing all our images in s3. I've heard of some ppl who store images on s3 'hacking' dev environments to store images locally on the file system -- and then using s3 in prod only. What are other people doing?

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• How to install gem pg on snow leopard

  - by dorelal

  I need to install gem pg on snow leopard because I am running rake on rails codebase. I am not using postgres. This is the error I am getting. $ sudo gem install pg Password: Sorry, try again. Password: Building native extensions. This could take a while... ERROR: Error installing pg: ERROR: Failed to build gem native extension. looked at various blogs from google search but none of them works.

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• rake db:create gives some problem when used from limited account

  - by Xinxua

  I am using mysql 5.1 and mysql gems version is 2.73 This is giving the following error message when I try to run it from a limited account in my XP. If try it using the admin account, it works fine. I think this is wierd because it cannot be the problem of mysql gem. (in F:/Temp/wassup) !!! The bundled mysql.rb driver has been removed from Rails 2.2. Please install the mysql gem and try again: gem install mysql. rake aborted! 5: Access is denied. - C:/Program Files/Ruby/lib/ruby/gems/1.8/gems/mysql-2.7. 3-x86-mswin32/ext/mysql.so (See full trace by running task with --trace) I need to work from the limited account. Can anyone let me know why is this happening?

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• has_many association, nested models and callbacks

  - by fl00r

  Hi! I've got model A and model Attach. I'm editing my A form with nested attributes for :attaches. And when I am deleting all attaches from A via accepts_nested_attributes_for how can I get after_update/after_save callbacks for all of my nested models? Problem is that when I am executing callbacks in model A they are executed right AFTER model A is updated and BEFORE model Attach is updated, so I can't, for example, know if there is NO ANY attaches after I delete them all :). Look for example: my callback after_save :update_status won't work properly after I delete all of my attaches. model A after_save :update_status has_many :attaches accepts_nested_attributes_for :attaches, :reject_if => proc { |attributes| attributes['file'].blank? }, :allow_destroy => true def update_status print "\n\nOUPS! bag is empty!\n\n" if self.attaches.empty? end end model Attach belongs_to A end I am using rails 3 beta

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• Autotest notifications on Ubuntu virtual environment

  - by Luciano

  I am having trouble getting Rails autotest notifications to work on the Engine Yard Vagrant environment. On the Mac, I normally get the notifications via Growl. However, on the virtual environment (which runs Ubuntu) that doesn't work. I tried running Linux notification setups such as libnotify+autotest-notification, but I get the following error: libnotify-Message: Unable to get session bus: /bin/dbus-launch terminated abnormally with the following error: Autolaunch error: X11 initialization failed. ** (notify-send:1004): CRITICAL **: dbus_g_proxy_connect_signal: assertion `DBUS_IS_G_PROXY (proxy)' failed ** (notify-send:1004): CRITICAL **: dbus_g_proxy_connect_signal: assertion `DBUS_IS_G_PROXY (proxy)' failed ** (notify-send:1004): CRITICAL **: dbus_g_proxy_call: assertion `DBUS_IS_G_PROXY (proxy)' failed Another path would be to have Growl receive the notifications remotely, but I don't even know where to begin with that... Any suggestions?

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• Help porting a bit of Prototype JavaScript to jQuery

  - by ewall

  I have already implemented some AJAX pagination in my Rails app by using the example code for the will_paginate plugin--which is apparently using Prototype. But if I wanted to switch to using jQuery for future additions, I really don't want to have the Prototype stuff sitting around too (yes, I know it's possible). I haven't written a lick of JavaScript in years, let alone looked into Prototype and jQuery... so I could use some help converting this bit into jQuery-compatible syntax: document.observe("dom:loaded", function() { // the element in which we will observe all clicks and capture // ones originating from pagination links var container = $(document.body) if (container) { var img = new Image img.src = '/images/spinner.gif' function createSpinner() { return new Element('img', { src: img.src, 'class': 'spinner' }) } container.observe('click', function(e) { var el = e.element() if (el.match('.pagination a')) { el.up('.pagination').insert(createSpinner()) new Ajax.Request(el.href, { method: 'get' }) e.stop() } }) } }) Thanks in advance!

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• Using delayed_job to process file uploads across multiple servers

  - by Steve Klabnik

  Does anyone have any good resources on how to do this? Basically, I'm working on a project (in Rails) where people can upload files. They might be big. I'd like to process them using delayed_job before sending them to S3. I'd also like to do this processing on a separate job queue server, rather than on the webserver itself. I'd rather not have to upload the files to the webserver, then transfer them to the job queue server, and then upload them to S3 if I don't have to. Thanks.

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• Twitter @Anywhere oauth_bridge_code

  - by AngelCabo

  I'm having trouble with Twitter's implementation of an oauth_bridge_code for the @anywhere api. I've seen a few walkthrough's on how to use this functionality but I can't seem to get the request to work for me. I'm using Ruby on Rails with the oauth gem. My code is as follows: def callback consumer = OAuth::Consumer.new(APP_CONFIG['twitter_key'], APP_CONFIG['twitter_secret'], :site => "http://api.twitter.com", :request_token_path => "/oauth/request_token", :authorize_path => "/oauth/authorize", :access_token_path => "/oauth/access_token", :http_method => :post) request = OAuth::AccessToken.new consumer json = request.post("https://api.twitter.com/oauth/access_token?oauth_bridge_code=#{params[:oauth_bridge_code]}") end I keep getting 401 unauthorized responses from the signed post request even though this is supposed to be working according to this walkthrough: http://blog.abrah.am/2010/09/using-twitter-anywhere-bridge-codes.html and a presentation from Matt Harris on slideshare. Any ideas on what I'm doing wrong (besides possibly trying to hit functionality that may not be in place)? Greatly appreciated!

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