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• What production-ready SaaS (recurring billing) solutions are available for Rails?

  - by Benjamin Manns

  I am working on a software-as-a-service (SaaS) application and I am looking for a billing plugin of some sort that will manage my subscriptions, customers, and recurring billing. There is the RailsKits SaaS kit ($249.00), but I prefer to use open source software. I have also found maccman's saasy, but the phrase "At the moment this is alpha code - use at your own risk" makes me a tad bit nervous.

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• Not delete params in URL, when sorting [ RAILS 3 ]

  - by kamil

  I have sortable table columns, made like that http://asciicasts.com/episodes/228-sortable-table-columns And I have simply filter options for two columns in table, made at select_tag (GET method). This two function don't work together. When I change filter, the sort parameter disappear and inversely. <th><%= sortable "Id" %></th> <th> Status<br/> <form method="get"> <%= select_tag(:status, options_for_select([['All', 'all']]+@statuses, params[:status]),{:onchange => 'this.form.submit()'}) %> </th> <th><%= sortable "Operation" %></th> <th> Processor<br/> <%= select_tag(:processor, options_for_select([['All', 'all']]+@processor_names, params[:processor]),{:onchange => 'this.form.submit()'}) %> </form> </th>

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• How to use string interpolation when rendering templates?

  - by Senthil

  I found this code in a Rails cookbook. class BlogController < ApplicationController def display_by_date year = params[:year] month = params[:month] day = params[:day] day ='0'+day if day && day.size == 1 @day = day if ( year && month && day ) render(:template => "blog/#{year}/#{month}/#{day}") elsif ( year ) render(:template => "blog/#{year}/list") end end end I'm not sure what to name the templates so the router can find them. Thanks for your help.

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• How to set the URL of a link to a variable using WATIR

  - by Alex

  Using WATIR and Excel, I'd like to take the first row of a table in Excel, visit the URL, then set the 12th link on the page as a variable in the cell next to the cell with the URL, then go to the next line and repeat. I'm stuck on getting the URL of the 12th link on the page to set as a variable that I can feed into the next cell in Excel. Here's what I have and it's not working. worksheet = workbook.WorkSheets(1) # get first workbook #declare test site test_site = worksheet.Range("a2").text #open ie ie = Watir::IE.new #go to test_site ie.goto test_site #find primlink ie.link(:index, 12).text = "primlink" puts primlink Any ideas?

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• Rails application installer

  - by Dimitar Vouldjeff

  Hi, I am making a rails cms and I have wandered if there is a plugin or script, which automatically installs the application? Thanks!

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• Rails: Settingslogic accessible to users?

  - by neezer

  I have my app configured with Settingslogic, which I love. My question is how to I make a page on my Rails app where Administrators can make changes to the settings specified in config/settings.yml?? I assume said page would have to read and display appropriate form fields for all the values in the YAML file, then save those values back to config/settings.yml? Would those settings take effect immediately or would the server need to be restarted? Bit lost here. Thanks. Related: http://stackoverflow.com/questions/2907643/rails-application-settings

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• how do I filter RoutingErrors and their long stack trace out of my log? rails

  - by codeman73

  I am seeing several strange requests like this, with urls like /sitemap/, /google_sitemap.xml.gz, /sitemap.xml.gz, /google_sitemap.xml, /cgi-bin/awstat/awstats.pl, etc. The default rails behavior dumps these long stack traces into my log, like the following: ActionController::RoutingError (No route matches "/rails/info/properties" with {:method=>:get}): /dh/passenger/lib/phusion_passenger/rack/request_handler.rb:92:in `process_request' /dh/passenger/lib/phusion_passenger/abstract_request_handler.rb:207:in `main_loop' /dh/passenger/lib/phusion_passenger/railz/application_spawner.rb:400:in `start_request_handler' /dh/passenger/lib/phusion_passenger/railz/application_spawner.rb:351:in `handle_spawn_application' /dh/passenger/lib/phusion_passenger/utils.rb:184:in `safe_fork' etc. Is there any way to stop these long stack traces? I wouldn't mind the first line, the ActionController::RoutingError with the message and the url, but I'd like to get rid of the long stack of passenger stuff.

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• Could I do this blind relative to absolute path conversion (for perforce depot paths) better?

  - by wonderfulthunk

  I need to "blindly" (i.e. without access to the filesystem, in this case the source control server) convert some relative paths to absolute paths. So I'm playing with dotdots and indices. For those that are curious I have a log file produced by someone else's tool that sometimes outputs relative paths, and for performance reasons I don't want to access the source control server where the paths are located to check if they're valid and more easily convert them to their absolute path equivalents. I've gone through a number of (probably foolish) iterations trying to get it to work - mostly a few variations of iterating over the array of folders and trying delete_at(index) and delete_at(index-1) but my index kept incrementing while I was deleting elements of the array out from under myself, which didn't work for cases with multiple dotdots. Any tips on improving it in general or specifically the lack of non-consecutive dotdot support would be welcome. Currently this is working with my limited examples, but I think it could be improved. It can't handle non-consecutive '..' directories, and I am probably doing a lot of wasteful (and error-prone) things that I probably don't need to do because I'm a bit of a hack. I've found a lot of examples of converting other types of relative paths using other languages, but none of them seemed to fit my situation. These are my example paths that I need to convert, from: //depot/foo/../bar/single.c //depot/foo/docs/../../other/double.c //depot/foo/usr/bin/../../../else/more/triple.c to: //depot/bar/single.c //depot/other/double.c //depot/else/more/triple.c And my script: begin paths = File.open(ARGV[0]).readlines puts(paths) new_paths = Array.new paths.each { |path| folders = path.split('/') if ( folders.include?('..') ) num_dotdots = 0 first_dotdot = folders.index('..') last_dotdot = folders.rindex('..') folders.each { |item| if ( item == '..' ) num_dotdots += 1 end } if ( first_dotdot and ( num_dotdots > 0 ) ) # this might be redundant? folders.slice!(first_dotdot - num_dotdots..last_dotdot) # dependent on consecutive dotdots only end end folders.map! { |elem| if ( elem !~ /\n/ ) elem = elem + '/' else elem = elem end } new_paths << folders.to_s } puts(new_paths) end

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• Change a finder method w/ parameters to an association

  - by Sai Emrys

  How do I turn this into a has_one association? (Possibly has_one + a named scope for size.) class User < ActiveRecord::Base has_many :assets, :foreign_key => 'creator_id' def avatar_asset size = :thumb # The LIKE is because it might be a .jpg, .png, or .gif. # More efficient methods that can handle that are OK. ;) self.assets.find :first, :conditions => ["thumbnail = '#{size}' and filename LIKE ?", self.login + "_#{size}.%"] end end EDIT: Cuing from AnalogHole on Freenode #rubyonrails, we can do this: has_many :assets, :foreign_key => 'creator_id' do def avatar size = :thumb find :first, :conditions => ["thumbnail = ? and filename LIKE ?", size.to_s, proxy_owner.login + "_#{size}.%"] end end ... which is fairly cool, and makes syntax a bit better at least. However, this still doesn't behave as well as I would like. Particularly, it doesn't allow for further nice find chaining (such that it doesn't execute this find until it's gotten all its conditions). More importantly, it doesn't allow for use in an :include. Ideally I want to do something like this: PostsController def show post = Post.get_cache(params[:id]) { Post.find(params[:id], :include => {:comments => {:users => {:avatar_asset => :thumb}} } ... end ... so that I can cache the assets together with the post. Or cache them at all, really - e.g. get_cache(user_id){User.find(user_id, :include => :avatar_assets)} would be a good first pass. This doesn't actually work (self == User), but is correct in spirit: has_many :avatar_assets, :foreign_key => 'creator_id', :class_name => 'Asset', :conditions => ["filename LIKE ?", self.login + "_%"] (Also posted on Refactor My Code.)

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• Rails : Scaffold works for the first, but not for the second table

  - by Sylario

  I am using aptana radrails empty rail project : scaffold Article titre:string body:text categorie_id:integer ordre:integer Migrate - it works fine scaffold Categorie titre:string ordre:integer It generate the files but when i access http://127.0.0.1:3000/categories i have the following error : NameError in Categories#index Showing app/views/categories/index.html.erb where line #22 raised: undefined local variable or method `new_categorie_path' for # Extracted source (around line #22): 19: 20: 21: 22: <%= link_to 'New categorie', new_categorie_path % i deleted recreated my whole rails project a few times, changed categorie with another name but it keep failling. Why ?

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• why the class of subclass is superclass

  - by Raj

  def singleton_class class << self self end end end class Human proc = lambda { puts 'proc says my class is ' + self.name.to_s } singleton_class.instance_eval do define_method(:lab) do proc.call end end end class Developer < Human end Human.lab # class is Human Developer.lab # class is Human ; oops Why Developer.lab is reporting that it is Human ?

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• How to DRY on CRUD parts of my Rails app?

  - by kolrie

  I am writing an app which - similarly to many apps out there - is 90% regular CRUD things and 10% "juice", where we need nasty business logic and more flexibility and customization. Regarding this 90%, I was trying to stick to the DRY principle as much as I can. As long as controllers go, I have found resource_controller to really work, and I could get rid of all the controllers on that area, replacing them with a generic one. Now I'd like to know how to get the same with the views. On this app I have an overall, application.html.erb layout and then I must have another layout layer, common for all CRUD views and finally a "core" part: On index.html.erb all I need to generate a simple table with the fields and labels I indicate. For new and edit, also generic form edition, indicating labels and fields (with a possibility of providing custom fields if needed). I am not sure I will need show, but if I do it would be the same as new and edit. What plugins and tools (or even articles and general pointer) would help me to get that done? Thanks, Felipe.

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• View code inside Javascript file on Rails

  - by SpyrosP

  Hello, previously i had javascript code right in the top of my view and it would work. Then, i learned that you can include the js file using yield and i did just that. I had rails view code inside my javascript code like : $( "#exp-progressbar" ).progressbar({ value: <%= ((@quest.end_time - Time.now).to_i * 100 ) / (@quest.duration * 60) %> }); Now, after i do it with yield, i get an error when i do that in the separate js file. How can i do it now ?

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• Rails, destroy if blank

  - by Joseph Silvashy

  This might sound odd, but is there a 'Rails way' to have a model destroyed if a certain attribute is blank? Say I have a model like tags with just a name attribute or something, if the user edits the tag and deletes all the text out of the name field in the form I'd like the model to just be deleted. I'm aware of the reject_if method, but that doesn't seem to work.

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• Large file download for a Rails project

  - by Horace Ho

  One client project will be online two months later. One of the requirements changed is to support large files (10 to 15MB per RAW camera file, expected 1000 to 5000 files download per day) download worldwide for their customers. The process will be: there is upload screen via paperclip to the rails local public folder a hourly task to upload to web storage (S3?) update the download url from paperclip url to the web url Questions: is there a gem/plug-in for this purpose? if no, any gem/plug-in for S3 to recommend? Questions about the storage provider: is S3 recommended? or other service to recommend? The baseline is: the client's web server does not and will not have the bandwidth to handle the downloads. Thanks

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• Rails and date: get profiles with related ages

  - by Totty

  Hy, I have a profile x, that has a born_date and then i want to get all the profiles that has more or less 5 years. If profile x has 20 years, i want every profile that has between 15 and 25 years. Here i need some date calculations and i dont really know how to do it. You have some ideas? ;)

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• rails contoller defaults to respond with application/xml in production

  - by Dave Paroulek

  I have a standard contacts_controller.rb with index action that responds as follows: respond_to do |format| format.html format.xml { render :xml => @contacts } end In development, it works as intended: when I browse to http://localhost:3000/contacts, I get an html response. But, when I start the app using capistrano on a remote ubuntu server and browse to the same url, I get a xml response? If I go to http://remote_host:8000/contacts.html, then I see the html response. If I comment out the format.xml { render :xml => @contacts }, then I see the desired html response. Pretty sure I'm missing something subtle about difference between rails development and production modes? Any ideas about what I'm overlooking? Thanks, - Dave

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• rails xml to active record object

  - by Brian D.

  I've been googling for a while to try and convert and incoming XML request into an active record object. I've tried using the ActiveRecordObject.new.from_xml method but it doesn't seem to handle relationships. For example, say I have the following xml: <blog> <title></title> <blog-pages> <blog-page> <page-number></page-number> <content></content> </blog-page> </blog-pages> </blog> And I have the following model objects: class Blog < ActiveRecord::Base has_many :blog_pages end class BlogPage < ActiveRecord::Base belongs_to :blog end Is there a way to convert the xml into a blog object WITH relationships? Or do I need to manually parse the XML? Thanks in advance.

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• Watir question regarding selecting a hidden dropdown.

  - by AJ

  Hi, I have two dropdowns, the second dropdown does not show until a choice is made from the first one. Using watir, i can select the first dropdown, and when i watch it, the second one becomes active, but it cannot select it. i just tried the regular select_list using name and id. Here is the code for the second drop down. <td> <input type="hidden" value="1" name="list" id="list"> <script type="text/JavaScript" language="JavaScript"></script> <select> <option value="">1</option> <option value="2">2</option> <option value="3">3</option> </select> </td> I've also notice the value for the hidden field change as i select different options. Thanks for any help

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• Select-all checkboxes for a

  - by Horace Ho

  In a form_tag, there is a list of 10 to 15 checkboxes: <%= check_box_tag 'vehicles[]', car.id %> How can I select-all (put a tick in every single) checkboxes by RJS? Thanks

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• Preparing for Rails deployment

  - by Meltemi

  Getting ready to deploy a rails project on Mac OS X Leopard Server (such that it matters). Got a few questions for someone with Rails experience: where should directory containing the project go? inside the website's root folder or out? who should "own" that directory? www? root? something/someone else? hope to continue serving static pages via Apache... would like rails app to be served by mydomain/xxx/railsapp. is there a standard naming convention for 'xxx'? not expecting too much traffic to begin with...just like to keep things as simple as possible.

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• How can I use Fromnames in ActionMailer RoR 2.3.5

  - by Erik Escobedo

  I want to show a pretty name in the e-mail clients

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• Is there anyway to make Jekyll support linked list type post?

  - by user300506

  I've tried to write a post using a link list layout that I've created but couldn't get jekyll to generate properly. The problem should be in the index.html but I can't make the index page to generate both layout together. {% for post in paginator.posts %} {% include post.html %} {% endfor %}

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• What's the best way to "shuffle" a table of database records?

  - by Darth

  Say that I have a table with a bunch of records, which I want to randomly present to users. I also want users to be able to paginate back and forth, so I have to perserve some sort of order, at least for a while. The application is basically only AJAX and it uses cache for already visited pages, so even if I always served random results, when the user tries to go back, he will get the previous page, because it will load from the local cache. The problem is, that if I return only random results, there might be some duplicates. Each page contains 6 results, so to prevent this, I'd have to do something like WHERE id NOT IN (1,2,3,4 ...) where I'd put all the previously loaded IDs. Huge downside of that solution is that it won't be possible to cache anything on the server side, as every user will request different data. Alternate solution might be to create another column for ordering the records, and shuffle it every insert time unit here. The problem here is, I'd need to set random number out of a sequence to every record in the table, which would take as many queries as there are records. I'm using Rails and MySQL if that's of any relevance.

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• Rails: How do I get created_at to show the time in my current time zone?

  - by Schneems

  Seems that when i create an object, the time is not correct. You can see by the script/console output below. Has anyone encountered anything like this, or have any debugging tips? >> Ticket.create(...) => #<Ticket id: 7, from_email: "[email protected]", ticket_collaterals: nil, to_email: "[email protected]", body: "hello", subject: "testing", status: nil, whymail_id: nil, created_at: "2009-12-31 04:23:20", updated_at: "2009-12-31 04:23:20", forms_id: nil, body_hash: nil> >> Ticket.last.created_at.to_s(:long) => "December 31, 2009 04:23" >> Time.now.to_s(:long) => "December 30, 2009 22:24"

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