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• Has anyone succesfully deployed on heroku from a windows platform ?

  - by dakull

  I've been reading all kinds of tutorials on how to deploy rails apps on heroku from windows. I've tried installing git, heroku gem, generating ssh keys and setting paths and everything... I get either public key error (without putty) or fatal no auth found (with putty)...

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• Undefined method 'total_entries' after upgrading Rails 2.2.2 to 2.3.5

  - by Trevor

  I am upgrading a Rails application from 2.2.2 to 2.3.5. The only remaining error is when I invoke total_entries for creating a jqgrid. Error: NoMethodError (undefined method `total_entries' for #<Array:0xbbe9ab0>) Code snippet: @route = Route.find( :all, :conditions => "id in (#{params[:id]})" ) { if params[:page].present? then paginate :page => params[:page], :per_page => params[:rows] order_by "#{params[:sidx]} #{params[:sord]}" end } respond_to do |format| format.html # show.html.erb format.xml { render :xml => @route } format.json { render :json => @route } format.jgrid { render :json => @route.to_jqgrid_json( [ :id, :name ], params[:page], params[:rows], @route.total_entries ) } end Any ideas? Thanks!

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• Using fixtures with factory_girl

  - by deb

  When building the following factory: Factory.define :user do |f| f.sequence(:name) { |n| "foo#{n}" } f.resume_type_id { ResumeType.first.id } end ResumeType.first returns nil and I get an error. ResumeType records are loaded via fixtures. I checked using the console and the entries are there, the table is not empty. I've found a similar example in the factory_girl mailing list, and it's supposed to work. What am I missing? Do I have to somehow tell factory_girl to set up the fixtures before running the tests?

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• Generate .sql files using rake task

  - by Prasanna

  Hi, I have a table called 'choices' in this table i am storing static data for my site like Blood Groups , qualification, job types etc., I have to create rake tasks one is for to create backup choices.sql file from choices table data, second one is dump the data from .sql file to choice table. How can I create the rake tasks. Any other best way to take backup data from a table and load data into the table Thanks

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• Avoiding duplication in setting properties on the task in Rake tasks

  - by Stray

  I have a bunch of rake building tasks. They each have unique input / output properties, but the majority of the properties I set on the tasks are the same each time. Currently I'm doing that via simple repetition like this: task :buildThisModule => "bin/modules/thisModule.swf" mxmlc "bin/modules/thisModule.swf" do |t| t.input = "src/project/modules/ThisModule.as" t.prop1 = value1 t.prop2 = value2 ... (And many more property=value sets that are the same in each task) end task :buildThatModule => "bin/modules/thatModule.swf" mxmlc "bin/modules/thatModule.swf" do |t| t.input = "src/project/modules/ThatModule.as" t.prop1 = value1 t.prop2 = value2 ... (And many more property=value sets that are the same in each task) end In my usual programming headspace I'd expect to be able to break out the population of the recurring task properties to a re-usable function. Is there a rake analogy for this? Some way I can have a single function where the shared properties are set on any task? Something equivalent to: task :buildThisModule => "bin/modules/thisModule.swf" mxmlc "bin/modules/thisModule.swf" do |t| addCommonTaskParameters(t) t.input = "src/project/modules/ThisModule.as" end task :buildThatModule => "bin/modules/thatModule.swf" mxmlc "bin/modules/thatModule.swf" do |t| addCommonTaskParameters(t) t.input = "src/project/modules/ThatModule.as" end Thanks.

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• Getting this error in rails: `ActionView::Template::Error (code converter not found (UTF-8 to UTF-16))`

  - by Victor S

  I've started getting the following error in one of my views for some reason, I don't get it in development, but only in production. Here is a snippet of the backtrace, any ideas? ActionView::Template::Error (code converter not found (UTF-8 to UTF-16)): 19: [title, summary.gsub(/^/, " "), nil].join("\n\n") 20: end 21: end.join 22: sections = sections.force_encoding('UTF-8').encode('UTF-16', :invalid => :replace).encode('UTF-8') if sections.respond_to?(:force_encoding) 23: %> 24: 25: <%= raw sections %>

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• How do I avoid nesting forms when offering inline editing of lists with checkboxes for mass updates.

  - by adam

  A lot of sites offer the ability to edit lists of items inline as well as allowing multiple items to be selected via checkboxes and have an action performed all at once e.g. delete, mark as spam etc. But how do you implement this without violating html rules. I need one form for the checkboxes with individual submit_tags for the mass actions. But after a user clicks on an item in the list, another form via Ajax will be inserted within the checkbox form. How do I avoid doing this? I'm using rails and jQuery.

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• using respond_to format.js to replace the content of a textarea on rails

  - by Stacia

  I have some saved text in my create controller. If it's not stressful, I'd like it to populate a textarea on the page with the saved text along with displaying the error message fields (which is what's already happening). I've used things like replace_html before, but I don't know if there's an easy way to get to textarea or text field IDs and just replace the value of the text. For now I'm just going to do some javascript but it would be nice to know the rails shortcut. edit: I wasn't in the right mindset because this app uses extjs and was trying to figure out how to do it this way. The text box is actually an ext status bar (same as here : http://www.extjs.com/deploy/dev/examples/statusbar/statusbar-demo.html ) which doesn't get created until the page is finished loading. When I try to enter commnands like the first poster suggested, I get "setvalue is not a function". Playing with firebug on the page I can get it to set the value after loading by using (whatever method to get it through ext or scriptaculous).value = "lol" but none of the page update things work with this.

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• Rails Functional Test Failing Due to Association

  - by Koby

  I have an accounts model that holds some basic account info (account name, website, etc). I then have a user model that has the following in the app/models/user.rb belongs_to :account I also have the following in my routes.rb map.resources :account, :has_many => [:users, :othermodel] the problem I'm facing is that the following test is failing: test "should create user" do assert_difference('User.count') do post :create, :user => { } #this is the line it's actually failing on end assert_redirected_to user_path(assigns(:user)) #it doesn't get here yet end The error it gives is "Can't find Account without ID" so I kind of understand WHY it's failing, because of the fact that it doesn't have the account object (or account_id as it were) to know under what account to create the user. I have tried variations of the following but I am completely lost: post :create, :user => { accounts(:one) } #I have the 'fixtures :accounts' syntax at the top of the test class post :create, [accounts(:one), :user] => { } post :create, :user => { accounts(:one), #other params for :user } and like I said, just about every variation I could think of. I can't find much documentation on doing this and this might be why people have moved to Factories for doing test data, but I want to understand things that come standard in Rails before moving onto other things. Can anyone help me get this working?

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• Is there an equivalent to RSpec's before(:all) in MiniTest?

  - by bergyman

  Since it now seems to have replaced TestUnit in 1.9.1, I can't seem to find an equivalent to this. There ARE times when you really just want a method to run once for the suite of tests. For now I've resorted to some lovely hackery along the lines of: Class ParseStandardWindTest < MiniTest::Unit::TestCase @@reader ||= PolicyDataReader.new(Time.now) @@data ||= @@reader.parse def test_stuff transaction = @@data[:transaction] assert true, transaction end end

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• Strange use of the index in Mysql

  - by user309067

  explain SELECT feed_objects.* FROM feed_objects WHERE (feed_objects.feed_id IN (165,160,159,158,157,153,152,151,150,149,148,147,129,128,127,126,125,124,122,121,120,119,118,117,116,115,114,113,111,110)) ; +----+-------------+--------------+------+---------------+------+---------+------+------+-------------+ | id | select_type | table | type | possible_keys | key | key_len | ref | rows | Extra | +----+-------------+--------------+------+---------------+------+---------+------+------+-------------+ | 1 | SIMPLE | feed_objects | ALL | by_feed_id | NULL | NULL | NULL | 188 | Using where | +----+-------------+--------------+------+---------------+------+---------+------+------+-------------+ Not used index 'by_feed_id' But when I point less than the values in the "WHERE" - everything is working right explain SELECT feed_objects.* FROM feed_objects WHERE (feed_objects.feed_id IN (165,160,159,158,157,153,152,151,150,149,148,147,129,128,127,125,124)) ; +----+-------------+--------------+-------+---------------+------------+---------+------+------+-------------+ | id | select_type | table | type | possible_keys | key | key_len | ref | rows | Extra | +----+-------------+--------------+-------+---------------+------------+---------+------+------+-------------+ | 1 | SIMPLE | feed_objects | range | by_feed_id | by_feed_id | 9 | NULL | 18 | Using where | +----+-------------+--------------+-------+---------------+------------+---------+------+------+-------------+ Used index 'by_feed_id' What is the problem?

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• Trouble reinstalling Gem after failure

  - by Sirupsen

  Yesterday I tried to install Jeweler via Rubygems, however somewhere in the middle of the process I had a power failure, resulting in my computer turning off in the middle of the installation process. Once I got it back up, I tried to reinstall Jeweler, however resulting in an error I've had trouble decoding. Does anyone have any idea on how to fix this problem? (I tried uninstall, cleanup and check)

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• Deploying to Heroku with sensitive setting information

  - by TK

  I'm using GitHub for code and Heroku for the deployment platform for my rails app. I don't want to have sensitive data under Git. Such data include database file settings (database.yml) and some other files that have secret API keys. When I deploy to heroku, how can I deal with files that are not under revision control. When I use Capistrano, I can write some hook methods, but I don't know what to do with Heroku.

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• HAML indentation problem IF

  - by Pieter Demoor

  This is my code: [email protected] do |a| -if @i%3 == 0 %ul %li=link_to a.name, a -@i += 1 I need the li to be inside the ul which is inside the if-statement. I can't do it because of the indentation. Can't I just tell the li to indent automatically? Thanks

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• How should approach allowing users to create notes with revisions?

  - by Magicked

  I'm working on a Rails project where I want to allow users to create individual notes, which are really just text fields at this time. With each note, the user can edit what they have previously written, but the old version is kept in a revision table. I'm trying to figure out the best way to approach this. My initial thoughts are to have the following relationships: class User < ActiveRecord::Base has_many :notes end class Note < ActiveRecord::Base has_many :note_revisions belongs_to :user end class NoteRevision < ActiveRecord::Base belongs_to :note_revision end The Note model will only contain a timestamp of when the note was first created. The NoteRevision model will contain the text, as well as a timestamp for each revision. This way, every time a new revision is made, a new entry is created into the NoteRevision table which is tracked through the Note table. Hopefully this makes sense! First, does this look like a good way to do this? If so, I'm having trouble figuring out how the controller and view will present this information in one form. Are there any good tutorials or has someone seen anything similar that can point me in the right direction? Thanks in advance!

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• In Rails, how do you functional test a Javascript response format?

  - by Teflon Ted

  If your controller action looks like this: respond_to do |format| format.html { raise 'Unsupported' } format.js # index.js.erb end and your functional test looks like this: test "javascript response..." do get :index end it will execute the HTML branch of the respond_to block. If you try this: test "javascript response..." do get 'index.js' end it executes the view (index.js.erb) withOUT running the controller action!

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• class method as hash value

  - by demas

  I have this working code: class Server def handle(&block) @block = block end def do @block.call end end class Client def initialize @server = Server.new @server.handle { action } end def action puts "some" end def call_server @server.do end end client = Client.new client.call_server My Server will handle more then one action so I want to change code such way: class Server def handle(options) @block = options[:on_filter] end def do @block.call end end class Client def initialize @server = Server.new my_hash = { :on_filter => action } @server.handle(my_hash) end def action puts "some" end def call_server @server.do end end client = Client.new client.call_server It is incorrect code because action() method calls on create my_hash, but if I try to modify code to: my_hash = { :on_filter => { action } } i get error message. Is it possible to create hash with methods as hash values ?

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• Creating dynamic resource in cookbook

  - by zsong

  Long story short, here is my code: template "...." do .... notifies :restart,"service[myservice_One]" notifies :restart,"service[myservice_Two]" end ['One', 'Two'].each do |proj| service 'myservice_#{proj}' do start_command "setsid /etc/init.d/my_command #{proj} start" stop_command "setsid /etc/init.d/my_command #{proj} stop" restart_command "setsid /etc/init.d/my_command #{proj} restart" status_command "setsid /etc/init.d/my_command #{proj} status" supports :status => true, :restart => true action [:enable,:start] end end I got this error: template[...] is configured to notify resource service[celery_worker_One] with action restart, but service[celery_worker_One] cannot be found in the resource collection. I know I can duplicate my code to make it work but how to dynamically create the services? Thanks!

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• Will_paginate Plugin on two objects on same page

  - by piemesons

  Hello I am using will_paginte plugin on two objects on a same page. Like on stackoverflow. There is a profile page on which there is a pagination on two things QUestions and answers. I am having problem ie:-- when user is clicking on questions pagination page 2. answers page are also updating. The reason is both is sending a post variable ie params[:page] How to change this variable so that only one should be updated. and how to maintain that user should not lose the other page. ie he is on 3rd page of questions and 1st page of answers and now he click on 5th page of the questions the result should be 3rd page of questions and 5th page of answers.

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• Change table row using Rails Ajax

  - by xopht

  I've a simple page with link_to_remote Rails Ajax function and HTML table. I'd like to change row of the table when click that link. This is my html. <table border="1"> <tr> <td><div id="ajax_result_1">1</div></td> <div id="ajax_result_2"><td>2</td></div> </tr> <div id="ajax_result_3"> <tr> <td>3</td> <td>4</td> </tr> </div> </table> And this is my code. <%= link_to_remote 'Change', :update => "ajax_result_1", :url => "change_path" %> change action just render simple text. When I use ajax_result_1 for :update, it worked okay. But, not for *ajax_result_2* and *ajax_result_3*. Is there a way to solve this? I want to replace row of the table.

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• Rails Authlogic Prevent User from Changing their Login/Username

  - by bob

  Hello, I have implemented Authlogic. I believe that this isn't an authlogic specific quesetion. Assume that I have a User model and each User has a column in the database called "login". Upon creating a user, the login column is populated. However, I don't want the user to be able to change their login once they set it. Currently, I have removed the text field in the _form.html.erb file in my views for users. However, it can probably still be accessed through the url right? How can I make it so that once a login is set, it can not be changed at all?

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• Allow blank on should validate_uniqueness_of

  - by J. Pablo Fernández

  Using shoulda, any ideas how to allow blank when having this test: should validate_uniqueness_of(:email) Thanks.

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• API to translate group name to group id (gid)

  - by Wayne Conrad

  File.chown takes an owner ID, a group ID (gid), and a filename. I want to use it to set a file's gid, but what I have is the group name. Is there anything in the standard library that I can use to translate a group name into a gid?

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• config.cache_classes = true in production mode has problems in IE

  - by techno_log

  Hi Dears, In my rails app. I am using link_to_function to bring an ajax tabs in one page.Everything works fine in Moazilla and other browsers. But in IE the tabs are not loading only when the server is started in production mode(doesn't matter whether its webrick or mongrel). In development mode everything is fine. So I figured out that the issue was with one line config.cache_classes = true in app/config/environments/production.rb when i changed the above code to config.cache_classes = false everything works fine. So I assume caching causes problem in rails. When I Googled about this I found many have the issues with caching. So my question is 1) is there any other fix for this? 2) Does this fix (config.cache_classes = false) causes any performance issues. If then how to overcome that? Any comments and suggestions are welcome. Techno_log

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• Using build with a has_one association in rails.

  - by espinet

  This is a really noob question but im having trouble finding the answer, is there a way in rails to have 0 or 1 association? For example, I create a user with no objects, than later on create an object for that user. I tried using build with a 'has_one' association but that blew up... The only way I see this working is using 'has_many'. The user is suppose to only have at most one of these objects, is there any way to do this?

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