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• Any working tutorials for Authlogic?

  - by Mark Wilbur

  I've been trying to build my first rails app and have gotten stuck on the issue of user authentication. I've found a number of tutorials for using various plug-ins to do this, but so far every single one of them is out-dated, and as a result, broken! From what I've read, I think Authlogic may be the best fit for me, and I've tried two things: 1) Going through Railscast, episode #160 (which is a tutorial for setting it up) 2) Using Ryan B's nifty_authentication gem with the --authlogic tag In both cases, I get the following error as soon as I try to do anything with a user: undefined local variable or method `acts_as_authentic' for # I believe this is from the User model: class User < ActiveRecord::Base acts_as_authentic end I'm sure I've installed the authlogic gem, and I've added config.gem "authlogic" to my environment.rb Any ideas about what's wrong? Anybody know of a complete and up to date tutorial for adding user authentication?

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• How to set RAILS_ENV in Aptana Rad Rails?

  - by Hortitude

  I'm using Aptana RadRails, and it seems that whenever I do any rake tasks it is using the development environment. How do I tell it to use the production environment? (e.g. db:create sets up my development database. I know I could do a db:create:all, but I'm wondering how to set the environment.) Thanks!

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• Hash#key for 1.8.6

  - by Tobias

  Greetings, I am trying to make my 1.9.1 source 1.8.6 compatible. I recognized that there's no Hash#key method. Any idea or method how to solve that? Thanks! Tobias

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• Is there anyway to make a Rails / Rack application tell the web server to drop the connection

  - by dasil003

  There are many security reasons why one would want to drop an HTTP connection with no response (eg. OWASP's SSL best practices). When these can be detected at the server level then it's no big deal. However, what if you can only detect this condition at the application level? Does Rails, or more generally Rack, have any standard way of telling the server to drop the connection without a response? If not, are there some standard headers to pass in that will accomplish that in common web servers (I'm thinking Nginx or Apache)? Even if there is not a standard header is there a reasonable way to configure that behavior? Is this a fool's errand?

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• How do I add custom buttons to Formtastic?

  - by jklina

  I'm using the Formtastic Rails gem in my app and its been great, but I would really like to add a second button, other than the bundled "commit" button that redirects back. I can't seem to find any information on how to add a custom button. Any information would be greatly appreciated!

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• Rails 2.3 uniqueness validation - how can I capture the value causing the error

  - by sa125

  Hi - I'm trying to capture the value that's throwing a uniqueness error (or for that matter, any other type of built-in validation) to display it in the :message option. Here's what I tried (didn't work) # inside the model validate_uniqueness_of :name, :message => "#{name} has already been taken" # also tried using #{:name} I could use a custom validation, but this beats the point of using something that's already integrated into AR. Any thoughts? thanks.

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• ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/tmp/mysql.sock' (2)

  - by Imran

  Can someone please help as i've spent all day trying to fix this. I installed the latest XAMPP and now i can't connect to mysql from terminal.I checked my .profile file and the PATH seems ok. Does anyone know whats happened and what's the solution? PATH=$PATH:/Applications/XAMPP/xamppfiles/bin export PATH THIS IS A PROGRAMMING QUESTION AS I'M A PHP DEVELOPER TRYING TO DO MY JOB! Thankyou soo much in advance;-)

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• Passing multiple codeblocks as arguments

  - by doctororange

  I have a method which takes a code block. def opportunity @opportunities += 1 if yield @performances +=1 end end and I call it like this: opportunity { @some_array.empty? } But how do I pass it more than one code block so that I could use yield twice, something like this: def opportunity if yield_1 @opportunities += 1 end if yield_2 @performances +=1 end end and: opportunity {@some_other_array.empty?} { @some_array.empty? } I am aware that this example could be done without yield, but it's just to illustrate. Thanks.

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• Odd Drag and drop sorting error Rails for nested attributes

  - by Senthil

  I've got this weird bug when trying to use drag and drag for two models (one nested within another). I've a category model which has many apps. In my category index page, I tried use "content_tag_for" to sort categories and apps within each category. But for some odd reason only the first element has drag, drop enabled. I can drag and drop categories all I want, but I can't drag the app in the second category, just the first category. Copy and paste gets ridiculously hopeless with HAML, so here's a Pastie instead. I made a sample app on heroku for you to check out here. Drag and drag work for both category and app, so I'm guessing it has to do something with the ul or li. Any help is appreciated. Thanks.

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• Using devise with Rails 3 beta

  - by Terw

  I'm currently trying to use Devise 1.1.pre3 as authentication in my upcoming project, but I can't get it to work properly. I have done everything it says in the documentation, installed warden and the correct Devise version, run the install and used the generator to create the model. But when I try to access the sign up form (localhost:3000/users/sign_up) all I get is No route matches "/users/sign_up" But when I run rake routing I get the following: ... GET /users/sign_up(.:format) {:controller=>"devise/registrations", :action=>"new"} ... I doesn't have any files matching that controller. Is there any steps I have missed (installed, updated routing etc and created model)

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• Rails - How can I display nicely indented JSON?

  - by sa125

  Hi - I have a controller action that returns JSON data for api purposes, and plenty of it. I want to be able to inspect it in the browser, and have it nicely indented for the viewer. For example, if my data is data = { :person => { :id => 1, :name => "john doe", :age => 30 }, :person => ... } I want to see { "person" : { "id" : 1, "name" : "john doe", "age" : 30, }, "person" : { "id" : 2, "name" : "jane doe", "age" : 31, }, ...etc } In the view. I thought about using different routes to get the bulk/pretty data: # GET /api/json # ... respond_to do |format| format.html { render :json => data.to_json } end # GET /api/json/inspect # ... respond_to do |format| format.html { render :text => pretty_json } end Anyone knows of a gem/plugin that does this or something similar? I tried using JSON.pretty_generate, but it doesn't seem to work inside rails (2.3.5). thanks.

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• Recommended way to test ActiveRecord associations?

  - by Sugerman

  I have written my basic models and defined their associations as well as the migrations to create the associated tables. I want to be able to test: The associations are configured as intended The table structures support the associations properly I've written FG factories for all of my models in anticipation of having a complete set of test data but I can't grasp how to write a spec to test both belongs_to and has_many associations. For example, given an Organization that has_many Users I want to be able to test that my sample Organization has a reference to my sample User. Organization_Factory.rb: Factory.define :boardofrec, :class => 'Organization' do |o| o.name 'Board of Recreation' o.address '115 Main Street' o.city 'Smallville' o.state 'New Jersey' o.zip '01929' end Factory.define :boardofrec_with_users, :parent => :boardofrec do |o| o.after_create do |org| org.users = [Factory.create(:johnny, :organization => org)] end end User_Factory.rb: Factory.define :johnny, :class => 'User' do |u| u.name 'Johnny B. Badd' u.email '[email protected]' u.password 'password' u.org_admin true u.site_admin false u.association :organization, :factory => :boardofrec end Organization_spec.rb: ... it "should have the user Johnny B. Badd" do boardofrec_with_users = Factory.create(:boardofrec_with_users) boardofrec_with_users.users.should include(Factory.create(:johnny)) end ... This example fails because the Organization.users list and the comparison User :johnny are separate instances of the same Factory. I realize this doesn't follow the BDD ideas behind what these plugins (FG, rspec) seemed to be geared for but seeing as this is my first rails application I'm uncomfortable moving forward without knowing that I've configured my associations and table structures properly.

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• Writting Rails project documentation

  - by potapuff

  Hi to all. Give me an example, that's you can describe as "well documented project on Rails", or "best practices of making documentation for Rails project" (with link to github, or other same site, if it possible). And, what tool's you prefer to use for writing documentation of your project?

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• Rails 2.3.5 model name translation problem in error messages

  - by Jason Nerer

  Hi Rails'ers, I encountered some problem while trying to translate my model's names and attributes in a Rails 2.3.5 app. I have the following model: class BillingPlan < ActiveRecord::Base validates_presence_of :billing_option_id belongs_to :order belongs_to :user belongs_to :billing_option end When validation fails, my models attributes are translated correctly, but the modelname itself is not. I use the following translation skeleton in de.yml de: activerecord: models: shipping_plan: "Versandart" billing_plan: "Rechnungsart" attributes: shipping_plan: shipping_option_id: "Versandoption" billing_plan: billing_option_id: "Rechnungsoption" Basis for my translation file is: http://github.com/svenfuchs/rails-i18n/blob/master/rails/locale/de.yml Can anyone help? Thx in advance J.

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• validates_associated in production

  - by Rien

  Hi all. Imagine a simple model. class Service belongs_to :user validates_associated :user accepts_nested_attributes_for :user end Nothing special right? The validations on the associated User model trigger correctly in development mode. But don't do anything in production. I've added a validates_on_presence :user just like the docs say. This triggers when there's no User associated with the Service, but fill in one thing on the User model and nothing happens! It's driving me up the walls. Am I overlooking something? More info about the MVC: I use formtastic for the forms. Thanks!

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• Is there a difference between plain text emails, and multipart emails with only plain text?

  - by Brian Armstrong

  I'm using Rails to send emails and I just want to send a plain text email (there is no corresponding HTML part). I've noticed that if I just have one file named email.text.plain.erb it actually generates a multipart email with one part (the plain text part) like this: Content-Type: multipart/alternative; boundary=mimepart_4c04a2d34c4bb_690a4e56b0362 --mimepart_4c04a2d34c4bb_690a4e56b0362 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: Quoted-printable Content-Disposition: inline text of the email here... --mimepart_4c04a2d34c4bb_690a4e56b0362-- But if I take out the text.plain part and name it email.erb ActionMailer generates a regular plain text email without multipart like this: Content-Type: text/plain; charset=utf-8 text of the email here... Both work fine most of the time (so this is kind of nitpicky), but I guess my question is whether the second one is more correct. My goal here is just to make sure deliverability is as high as possible across a wide variety of devices and email clients. I've read that plain text emails can have slightly better deliverability rates than html and was just curious if throwing in this multipart (even if it only contained a plain text part) might throw off some of the dumber email clients. Thanks for your help!

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• How to show server errors in Rails 2.3.5 with JSON and jQuery

  - by Fortuity

  I've got in-place editing on a page in my app (using Rails 2.3.5 and jQuery). I want to know how to display an error on the page when the update fails. I'm using ajax (an XMLHttpRequest) to save an update to a Comment object. The controller has an update method like this: def update @comment = Comment.find(params[:id]) respond_to do |format| # if @comment.update_attributes!(params[:comment]) if false #deliberately forcing a fail here to see what happens format.json { render :nothing => true } else format.json { render :json => @comment.errors, :status => :unprocessable_entity } end end end In Firebug, I can see the server returns a "422" (an appropriate validation error status code). But it's a response to an XMLHttpRequest so there is no redirect to an error page. I think I actually want to do this: format.json { render :json => @comment.errors} or maybe this: format.json {render :json => { :status => :error, :message => "Could not be saved" }.to_json, :status => 400 } and trigger some Javascript function that iterates through (and displays) any errors. I'm using a rails plugin http://github.com/janv/rest_in_place/ to implement the in-place editing. It doesn't appear to have any callback function to handle a failure. What are my options? Can I write some Javascript to respond to a failure condition without hacking the plugin? Do I have to hack the rest_in_place plugin to handle a failure condition? Is there a better plugin (for Rails or jQuery) that handles in-place editing, including failure conditions? UPDATE This post from Peter Bui (http://paydrotalks.com/posts/45-standard-json-response-for-rails-and-jquery) was helpful in showing how to handle an error message from the server using XMLHttpRequest.status. I looked at his implementation of a blog using ajax (http://github.com/paydro/talks). I'm surprised at the complexity required to handle a simple error condition. Usually Rails has all the goodness baked in but it seems server errors with JSON are out of scope. Can that be? I also looked at grimen's validatious-on-rails (http://github.com/grimen/validatious-on-rails/) which accommodates models validations when ajax XMLHttpRequest is used. It's not clear to me how I'd use it to handle the general case of a "save" failing when validations succeed. P.S. Please vote me up... so I can use more than one HTML link when I ask my question :-)

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• Gotchas for writing rubygems

  - by Andrew Grimm

  There have been questions with answers on how to write rubygems, but what should you avoid in writing a rubygem? What can cause problems for people using your rubygem?

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• How to use acts-as-commentable-with-threading in Rails

  - by alex

  Hi All, I am developing my first rails site (yup, i am a rails idiot). I'm writing a blog, and i got to the comments part. I installed acts-as-commentable-with-threading ( GitHub ), i made and ran the migration like the install instructions said. I have added acts_as_commentable to my Posts model and i have a Comments controller When i add @comment = Comment.build_from(params[:id],1, params[:body] ) I get the error. undefined method `build_from' for # Clearly i am doing something terribly wrong, and i don't really get the example. What should i be feeding to build_from? Can somebody explain this plugin step by step? :) Or is there an easier way to get simple threaded comments?

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• render_to_string from a rake task

  - by Horace Loeb

  I want to use a Rake task to cache my sitemap so that requests for sitemap.xml won't take forever. Here's what I have so far: @posts = Post.all sitemap = render_to_string :template => 'sitemap/sitemap', :locals => {:posts => @posts}, :layout => false Rails.cache.write('sitemap', sitemap) But when I try to run this, I get an error: undefined local variable or method `headers' for #<Object:0x100177298> How can I render a template to a string from within Rake?

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• Help on using paperclip plugin

  - by Brian Roisentul

  I've just installed this plugin, created the migrations, added everything I needed to make it work(I didn't install ImageMagick yet). The problem is when I get the upload control parameter to save it in my controller, I get something like this: #<File:C:\Users\Brian\AppData\Local\Temp\RackMultipart.2560.6677> instead of a simple string, like C:\Users\Brian\AppData\Local\Temp\RackMultipart.2560.6677 And if I try to read it I get the following exception: TypeError backtrace must be Array of String What am I doing wrong? How do I read it or simply get rid of the # and < symbols?

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• Problems with Runt overlap? but *only* within Rails

  - by trisignia

  Martin Fowler's Runt library is really handy for date/time comparisons, and this code works great in an irb console: require 'runt' include Runt r_start = PDate.month(2010,12) r_end = PDate.month(2011,12) range = DateRange.new(r_start,r_end) o_start = PDate.month(2010,11) o_end = PDate.month(2012,2) o_range = DateRange.new(o_start,o_end) range.overlap?(o_range) but if I add the Runt gem to my Rails 2.3.5 app and try to run the same commands in script/console, I get this error: NoMethodError: undefined method `to_datetime' for Mon, 01 Nov 2010 00:00:00 +0000..Wed, 01 Feb 2012 00:00:00 +0000:Runt::DateRange from /Users/jacob/work/matchbook/vendor/gems/runt-0.7.6/lib/runt/sugar.rb:130:in method_missing' from /Users/jacob/work/matchbook/vendor/rails/activesupport/lib/active_support/core_ext/date_time/calculations.rb:120:in <=' from /Users/jacob/work/matchbook/vendor/gems/runt-0.7.6/lib/runt/pdate.rb:91:in <=>' from /Users/jacob/work/matchbook/vendor/gems/runt-0.7.6/lib/runt/daterange.rb:34:in member?' from /Users/jacob/work/matchbook/vendor/gems/runt-0.7.6/lib/runt/daterange.rb:34:in `overlap?' from (irb):10 Has anyone encountered this error before, or does anyone know how to begin debugging this? I've tried looking at the spaceship operator in the ActiveSupport calculations module, but I can't figure out how to pick apart the problem. Thanks very much for your help, Jacob

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• plugin from github not successfully installing

  - by JohnMerlino

  Hey all, I tried to install the highcharts-rails plugin from github as specified in the instructions: Installation Get the plugin: script/plugin install git://github.com/loudpixel/highcharts-rails.git Run the rake setup: rake highcharts_rails:install But when I run the script/plugin install... It installs a couple of files only and not all the required files, I presume, because when I run rake highcharts_rails:install I get the following: rake aborted! Don't know how to build task 'highcharts_rails:install' All it installed for me was: jquery.js jrails.js jquery-ui.js I noticed on the site http://github.com/loudpixel/highcharts-rails It has all this: file MIT-LICENSE February 08, 2010 Initial commit [abbottry] file README.md February 09, 2010 Added installation section to README [jsiarto] file Rakefile February 08, 2010 Initial commit [abbottry] directory generators/ February 08, 2010 Initial commit [abbottry] file init.rb February 08, 2010 Initial commit [abbottry] directory javascripts/ February 08, 2010 Added jquery 1.3.2 script [abbottry] directory lib/ February 08, 2010 Initial commit [abbottry] directory tasks/ February 08, 2010 Incorrect path to plugin for rake task [abbottry] directory test/ February 08, 2010 Initial commit [abbottry] file uninstall.rb February 08, 2010 Initial commit [abbottry] So I'm not sure what I'm doing wrong to not get these files installed properly. Thanks for any response.

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• Only show content when certain criteria is met?

  - by Elliot

  I'm wondering if theres a best practice for what I'm trying to accomplish... First we have the model categories, categories, has_many posts. Now lets say, users add posts. Now, I have a page, that I want to display only the current user's posts by category. Lets say we have the following categories: A, B, and C User 1, has posted in Categories A and B. In my view I have something like: @categories.each do |category| category.name @posts.each do |post| if post.category_id==category.id post content here end end end The problem with this, is I'm going to show the empty category, as well as the categories that do have content. Is there a more efficient way of going about this? As I don't want to show the empty categories. Best, Elliot

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• IIS as proxy to rails/mongrel - force a proxied host to generate REMOTE_USER

  - by rbn

  Hello -- Using Application Request Routing I have IIS 7.5 set up as a reverse proxy to a Mongrel service which is serving a rails app. IIS is set up to use Windows Auth and is working but I cannot access the REMOTE_USER variable in the rails app to get at current user's identity. I have inspected the request object in rails and I don't have any other variables like LOGON_USER, HTTP_REMOTE_USER, AUTH_USER, etc. I am trying to find a way to inject the REMOTE_USER variable into Mongrel's server variables. This post describes what I am looking for using mod_rewrite on Apache but I am having trouble recreating this rule for iis. this is the rewrite rule from the post mentioned above for Apache RewriteEngine On RewriteCond %{LA-U:REMOTE_USER} (.+) RewriteRule . - [E=RU:%1] Header add X-Forwarded-User %{RU}e I tried reproducing the rule in IIS and got a URL Rewrite Module error ("The condition's expression "%{LA-U:REMOTE_USER}" is invalid."). I know I'm probably using Apache syntax where IIS syntax is needed but am not sure how to proceed at this point. Any help greatly appreciated.

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