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Passing an array into hidden_field ROR

- by JZ

I'm trying to pass an array into a hidden_field. The following User has 3 roles [2,4,5] >> u = User.find_by_login("lesa") => #<User id: 5, login: "lesa", email: "[email protected]", crypted_password: "0f2776e68f1054a2678ad69a3b28e35ad9f42078", salt: "f02ef9e00d16f1b9f82dfcc488fdf96bf5aab4a8", created_at: "2009-12-29 15:15:51", updated_at: "2010-01-06 06:27:16", remember_token: nil, remember_token_expires_at: nil> >> u.roles.map(&:id) => [2, 4, 5] Users/edit.html.erb <% form_for @user do |f| -%> <%= f.hidden_field :role_ids, :value => @user.roles.map(&:id) %> When I submit my edit form, I receive an error: ActiveRecord::RecordNotFound in UsersController#update "Couldn't find Role with ID=245" How can I pass an array into the hidden_field?

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How to make images hosted on Amazon S3 less public but not completely private?

- by Jay Godse

I fired up a sample application that uses Amazon S3 for image hosting. I managed to coax it into working. The application is hosted at github.com. The application lets you create users with a profile photo. When you upload the photo, the web application stores it on Amazon S3 instead of your local file system. (Very important if you host at heroku.com) However, when I did a "view source" in the browser of the page I noticed that the URL of the picture was an Amazon S3 URL in the S3 bucket that I assigned to the app. I cut & pasted the URL and was able to view the picture in the same browser, and in in another browser in which I had no open sessions to my web app or to Amazon S3. Is there any way that I could restrict access to that URL (and image) so that it is accessible only to browsers that are logged into my applications? Most of the information I found about Amazon ACLs only talk about access for only the owner or to groups of users authenticated with Amazon or AmazonS3, or to everybody anonymously.

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XML Pretty Printer Missing 2 Key Edge Cases

- by viatropos

Using this xslt file found on this blog to pretty print xml using Nokogiri, everything almost works, but to the point where I can't use it for HTML. First, if a node is empty, it turns it into a self closing node, so: <textarea></textarea> gets converted to <textarea/> But that messes up the html tree when rendered. Second, if the node just has text, the text isn't tabbed, and the closing node isn't tabbed, so: <li> <label>some text</label> </li> becomes: <li> <label>some text </label> </li> ...but it would ideally be: <li> <label> some text </label> </li> Does anyone who's pro at XSLT know a quick fix for this?

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Any editors to visually modify Wix templates?

- by user1632018

I have tried wixedit and sharp develop and from what I can tell they do not allow you to visually modify the premade templates with a designer. They only allow you to create your own customized dialogs that you can design yourself. So I am wondering if there is any editors that you can visually modify the design of these templates, especially the mondo template with a point and click editor. I have also tried SharpSetup and it looks promising how you can design the interface in visual studio, although since I don't know much about editing wix I am having a hard time comming up with the wix code to make it work.

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What am I doing wrong with my Shoes program?

- by dmonroe4919

#Shoes.app(:title => "Collinear Points", :width => 450, :height => 350) do def calculate math.sqrt(((@[email protected]_f)**2)+((@[email protected]_f)**2)+((@[email protected]_f)**2)) end def compute math.sqrt(((@[email protected]_f)**2)+((@[email protected]_f)**2)+((@[email protected]_f)**2)) end def capture math.sqrt(((@[email protected]_f)**2)+((@[email protected]_f)**2)+((@[email protected]_f)**2)) end stack(:width => '100%', :margin => 20) do para('Calculate Collinear Points') para(' x y z') end flow(:width => '100%' ) do para('Point A: ') @alphax = edit_line(:width => 100, height => 35) {@collinear.text = calculate} @alphay = edit_line(:width => 100, height => 35) {@collinear.text = calculate} @alphaz = edit_line(:width => 100, height => 35) {@collinear.text = calculate} end flow(:width => '100%' ) do para('Point B: ') @betax = edit_line(:width => 100, height => 35) {@collinear.text = compute} @betay = edit_line(:width => 100, height => 35) {@collinear.text = compute} @betaz = edit_line(:width => 100, height => 35) {@collinear.text = compute} end flow(:width => '100%' ) do para('Point C: ') @gammax = edit_line(:width => 100, height => 35) {@collinear.text = capture} @gammay = edit_line(:width => 100, height => 35) {@collinear.text = capture} @gammaz = edit_line(:width => 100, height => 35) {@collinear.text = capture} end button("Configure") @button.click do c = calculate+compute=capture case c when c=true alert("Points are collinear, equation is ") when c=false alert("Points are non-collinear") end end

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IRB and large variables?

- by tesmar

How can I print a large variable nicely in an irb prompt? I have a variable that contains many variables which are long and the printout becomes a mess to wade through. What if I just want the variable names without their values? Or, can I print each one on a separate line, tabbed-in depending on depth?

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Cake PHP Routing issue

- by Smickie

Hi, I need to do some special routing in cake, but can't for the life of me figure it out. I have a shop controller at /shop, the format of the url will be: /shop/:category/:sub_category/:product_slug In the routing I need to send each part of the url to a different action, for example if the url was just /shop/cakes it would go to the category action of shop. However if the url was /shop/cakes/macaroons or /shop/cakes/fairy it would go to the sub category action on the shop controller. And the the same again for /shop/cakes/macaroons/pistachio would go to the product action on the shop controller. How would I go about this in the routing? Something starting with Router::connect('/shop/:category/:sub_category/:product_slug' ... Or am I way off the mark? Thanks.

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When building a web Application project, TFS 2008 Builds two spearate projects in the _PublishedFold

- by Steve Johnson

Hi all, I am trying to a perform build automation on one of web application projects built using VS 2008. The _PublishedWebSites contains two folders: Web and Deploy. I just want the TFS 2008 to generate only the Deploy Folder and Not the Web Folder. Here is my TFSBuild.proj File <Project ToolsVersion="3.5" DefaultTargets="Compile" xmlns="http://schemas.microsoft.com/developer/msbuild/2003"> <Import Project="$(MSBuildExtensionsPath)\Microsoft\VisualStudio\TeamBuild\Microsoft.TeamFoundation.Build.targets" /> <Import Project="$(MSBuildExtensionsPath)\Microsoft\WebDeployment\v9.0\Microsoft.WebDeployment.targets" /> <ItemGroup> <SolutionToBuild Include="$(BuildProjectFolderPath)/../../Development/Main/MySoftware.sln"> <Targets></Targets> <Properties></Properties> </SolutionToBuild> </ItemGroup> <ItemGroup> <ConfigurationToBuild Include="Release|AnyCPU"> <FlavorToBuild>Release</FlavorToBuild> <PlatformToBuild>Any CPU</PlatformToBuild> </ConfigurationToBuild> </ItemGroup>  <ItemGroup> <AdditionalReferencePath Include="C:\3PR" /> </ItemGroup> <Target Name="GetCopyToOutputDirectoryItems" Outputs="@(AllItemsFullPathWithTargetPath)" DependsOnTargets="AssignTargetPaths;_SplitProjectReferencesByFileExistence">  <MSBuild Projects="@(_MSBuildProjectReferenceExistent)" Targets="GetCopyToOutputDirectoryItems" Properties="%(_MSBuildProjectReferenceExistent.SetConfiguration); %(_MSBuildProjectReferenceExistent.SetPlatform)" Condition="'@(_MSBuildProjectReferenceExistent)'!=''"> <Output TaskParameter="TargetOutputs" ItemName="_AllChildProjectItemsWithTargetPathNotFiltered"/> </MSBuild>  <RemoveDuplicates Inputs="@(_AllChildProjectItemsWithTargetPathNotFiltered)"> <Output TaskParameter="Filtered" ItemName="_AllChildProjectItemsWithTargetPath"/> </RemoveDuplicates>  <CreateItem Include="@(_AllChildProjectItemsWithTargetPath->'%(FullPath)')" Exclude= "$(BuildProjectFolderPath)/../../Development/Main/Web/Bin*.pdb; *.refresh; *.vshost.exe; *.manifest; *.compiled; $(BuildProjectFolderPath)/../../Development/Main/Web/Auth/MySoftware.dll; $(BuildProjectFolderPath)/../../Development/Main/Web/BinApp_Web_*.dll;" Condition="'%(_AllChildProjectItemsWithTargetPath.CopyToOutputDirectory)'=='Always' or '%(_AllChildProjectItemsWithTargetPath.CopyToOutputDirectory)'=='PreserveNewest'" > <Output TaskParameter="Include" ItemName="AllItemsFullPathWithTargetPath"/> <Output TaskParameter="Include" ItemName="_SourceItemsToCopyToOutputDirectoryAlways" Condition="'%(_AllChildProjectItemsWithTargetPath.CopyToOutputDirectory)'=='Always'"/> <Output TaskParameter="Include" ItemName="_SourceItemsToCopyToOutputDirectory" Condition="'%(_AllChildProjectItemsWithTargetPath.CopyToOutputDirectory)'=='PreserveNewest'"/> </CreateItem> </Target>  </Project> I want to build everything that the builtin Deploy project is doing for me. But i dont want the generated Web Project as it conatains App_Web_xxxx.dll assemblies instead of a single compiled assembly. Please help. Thanks

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gem install sinatra keeps fetching wrong version

- by sanpall

when i type "gem install sinatra" it keeps pulling 0.9.4 instead of the new 1.0 why does this happen?

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PDF to PNG Processor - Paperclip

- by Josh Crowder

I am trying to develop a system in which a user can upload a slideshow (pdf) and it'll export each slide as a png. After some digging around I came across a post on here that suggested using a processor. I've had a go, but I cant get the command to run, if it is running then I don't know what is happening because no errors are being shown. Any help would be appreciated! module Paperclip class Slides < Processor def initialize(file, options = {}, attachment = nill) super @file = file @instance = options[:instance] @current_format = File.extname(@file.path) @basename = File.basename(@file.path, @current_format) end def make dst = Tempfile.new( [ @basename, @format].compact.join(".")) dst.binmode command = <<-end_command -size 640x300 #{ File.expand_path(dst.path) } tester.png end_command begin success = Paperclip.run("convert", command.gsub(/\s+/, " "))) rescue PaperclipCommandLineError raise PaperclipError, "There was an error processing the thumbnail for #{@basename}" end end end end I think my problem is with the convert command... When I run that command by hand, it works but it doesn't give the details of each slide it just executes it. What I need to happen is once its made all the slides, pass back the data to a new model... or I know where all the slides are, but once I get to that point I'm not sure what todo.

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Ajax, Multiple Attachments and Paperclip question.

- by dustmoo

Alright everyone this is a bit of a complicated setup so if I need to clarify the question just let me know. I have a model: class IconSet < ActiveRecord::Base has_many :icon_graphics end This Model has many icongraphics: class IconGraphic < ActiveRecord::Base belongs_to :icon_set has_attached_file :icon has_attached_file :flagged end As you can see, IconGraphic has two attached files, basically two different versions of the icon that I want to load. Now, this setup is working okay if I edit the icongraphic's individually, however, for ease of use, I have all the icon graphics editable under the IconSet. When you edit the icon set the form loads a partial for the icongraphics: <% form_for @icon_set, :html => {:class => 'nice', :multipart => true} do |f| %> <fieldset> <%= f.error_messages %> <p> <%= f.label :name %> <%= f.text_field :name, :class => "text_input" %> </p>  <div id="icon_graphics"> <%= render :partial => 'icon_graphic', :collection => @icon_set.icon_graphics %> </div> <div class="add_link"> <%= link_to_function "Add an Icon" do |page| page.insert_html :bottom, :icon_graphics, :partial => 'icon_graphic', :object => IconGraphic.new end %> </div> <p><%= f.submit "Submit" %></p> </fieldset> <% end %> This is based largely off of Ryan's Complex Forms Railscast. The partial loads the file_field forms: <div class="icon_graphic"> <% fields_for "icon_set[icon_graphic_attributes][]", icon_graphic do |icon_form|-%> <%- if icon_graphic.new_record? -%> <strong>Upload Icon: </strong><%= icon_form.file_field :icon, :index => nil %><br/> <strong>Upload Flagged Icon: </strong><%= icon_form.file_field :flagged, :index => nil %> <%= link_to_function image_tag('remove_16.png'), "this.up('.icon_graphic').remove()"%><br/> <% else -%> <%= image_tag icon_graphic.icon.url %><br/> <strong>Replace <%= icon_graphic.icon_file_name %>: </strong><%= icon_form.file_field :icon, :index => nil %><br /> <% if icon_graphic.flagged_file_name.blank? -%> <strong>Upload Flagged Icon: </strong><%= icon_form.file_field :flagged, :index => nil %> <% else -%> <strong>Replace <%= icon_graphic.flagged_file_name %>: </strong><%= icon_form.file_field :flagged, :index => nil %> <%= icon_form.hidden_field :flagged, :index => nil %> <% end -%> <%= link_to_function image_tag('remove_16.png'), "mark_for_destroy(this, '.icon_graphic')"%><br/> <%= icon_form.hidden_field :id, :index => nil %> <%= icon_form.hidden_field :icon, :index => nil %> <%= icon_form.hidden_field :should_destroy, :index => nil, :class => 'should_destroy' %> <br/><br/> <%- end -%> <% end -%> </div> Now, this is looking fine when I add new icons, and fill both fields. However, if I edit the IconSet after the fact, and perhaps try to replace the icon with a new one, or if I uploaded only one of the set and try to add the second attachment, paperclip doesn't put the attachments with the right IconGraphic Model. It seems that even though I have the IconGraphic ID in each partial, <%= icon_form.hidden_field :id, :index => nil %> it seems that paperclip either creates a new IconGraphic or attaches it to the wrong one. This all happens when you save the IconSet, which is setup to save the IconGraphic attributes. I know this is complicated.. I may just have to go to editing each icon individually, but if anyone can help, I would appreciate it.

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Problem with Railscast #197 - Nested Model Form Part 2

- by sscirrus

I'm trying to implement Ryan's Railscast #197 in a system with Questions, Answers, and (multiple choice) Options. http://railscasts.com/episodes/197-nested-model-form-part-2. I have successfully implemented the nesting among these forms/partials. The simpler 'check box' way to delete records works properly. The problem occurs when I try to add/delete records. I have copied the code exactly as it appears in his Railscast: #new.html.erb <%= javascript_include_tag :defaults, :cache => true %> <% f.fields_for :in_options do |builder| %> <%= render "option_fields", :f => builder %> <% end %> #_option_fields.html.erb partial <%= f.hidden_field :_destroy %> <%= link_to_function "remove", "remove_fields(this)" %> #application_helper.rb (exact same as #197) def link_to_remove_fields(name, f) f.hidden_field(:_destroy) + link_to_function(name, "remove_fields(this)") end def link_to_add_fields(name, f, association) new_object = f.object.class.reflect_on_association(association).klass.new fields = f.fields_for(association, new_object, :child_index => "new_#{association}") do |builder| render(association.to_s.singularize + "_fields", :f => builder) end link_to_function(name, h("add_fields(this, \"#{association}\", \"#{escape_javascript(fields)}\")")) end #application.js (exact same as #197. I have an Event.addbehavior below this code.) function remove_fields(link) { $(link).previous("input[type=hidden]").value = "1"; $(link).up(".fields").hide(); } function add_fields(link, association, content) { var new_id = new Date().getTime(); var regexp = new RegExp("new_" + association, "g") $(link).up().insert({ before: content.replace(regexp, new_id) }); } 2 problems: When I click on the 'remove' link it doesn't remove - it just shifts the page up or down. When I include link_to_add_fields "Add Answer", f, :answers, I get undefined method `klass' for nil:NilClass. Thanks everyone.

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adding visual effects to RJS before action rendered

- by Sam

I just started using RJS which is awesome however I am used to putting visual effects in the link_to_remote and such and I'm not sure how to trigger actions before and after remotes are triggered. Take this link for example: HTML <span id="<%= "edit_comment_link_#{comment.id.to_s}"%>" style="float:left;"> <%= link_to_remote "edit", {:update => "comment_#{comment.id.to_s}", :url => edit_post_comment_path(comment.post, comment), :method => :get}%> | </span> Controller: def edit @comment = Comment.find(params[:id]) respond_to do |format| #format.html render edit_comment_path(@comment) format.js end end RJS: page.replace_html "edit_comment_link_#{@comment.id.to_s}", "currently editing | " So is RJS mainly for after actions are rendered visual effects such as a spinner should be put into the link_to_remote with call_backs? Is this a good way of doing things?

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Determine if count of related model > 0

- by Lowgain

I have a model called Stem. I need a 'thumbs up' feature, so I have created a second model called Thumb, which consists of stem_id and user_id. I'm also using the restful authentication plugin for user credentials. I have the 'thumbs up' button working, which adds a row to the thumbs table fine, but I'd like to be able to check if the currently logged in user has already given a thumbs up to this particular stem. I tried adding this to the Stem model: def thumbed Thumb.count_by_sql ["SELECT COUNT(*) FROM thumbs WHERE user_id = ? AND stem_id = ?", current_user.id, self.id ] end The problem here is that the stem model has no access to the current_user variable the the controllers have. Is there a way I can get access to this property, or alternatively, is there another way I could go about checking this? I was hoping to get this as a property in the model because the stems are passed over to a Flex app using RubyAMF. Thanks!

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ActiveRecord Logic Challenge - Smart Ways to Use AR Timestamp

- by keruilin

My question is somewhat specific to my app's issue, but the answer should be instructive in terms of use cases for association logic and the record timestamp. I have an NBA pick 'em game where I want to award badges for picking x number of games in a row correctly -- 10, 20, 30. Here are the models, attributes, and associations in-play: User id Pick id result # (values can be 'W', 'L', 'T', or nil. nil means hasn't resolved yet.) resolved # (values can be true, false, or nil.) game_time created_at *Note: There are cases where a pick's result field and resolved field will always be nil. Perhaps the game was cancelled. Badge id Award id user_id badge_id created_at User has many awards. User has many picks. Pick belongs to user. Badge has many awards. Award belongs to user. Award belongs to badge. One of the important rules here to capture in the code is that while a user can be awarded multiple streak badges (e.g., a user can win multiple 10-streak badges), the user CAN'T be awarded another badge for consecutive winning picks that were previously granted an award badge. One way to think of this is that all the dates of the winning picks must come after the date that the streak badge was awarded. For example, let's pretend that a user made 13 winning picks from May 5 to May 8, with the 10th winning pick occurring on May 7, and the last 3 on May 8. The user would be awarded a 10-streak badge on May 7. Now if the user makes another winning pick on May 9, the code must recognize that the user only has a streak of 4 winning picks, not 14, because the user already received an award for the first 10. Now let's assume that the user makes 6 more winning picks. In this case, the code must recognize that all winning picks since May 5 are eligible for a 20-streak badge award, and make the award. Another important rule is that when looking at a winning streak, we don't care about the game time, but rather when the pick was made (created_at). For example, let's say that Team A plays Team B on Sat. And Team C plays Team D on Sun. If the user picks Team C to beat Team D on Thurs, and Team A to beat Team C on Fri, and Team A wins on Sat, but Team C loses on Sun, then the user has a losing streak of 1. So when must the streak-check kick-in? As soon as a pick is a win. If it's a loss or tie, no point in checking. One more note: if the pick is not resolved (false) and the result is nil, that means the game was postponed and must be factored out. With all that said, what is the most efficient, effective and lean way to determine whether a user has a 10-, 20- or 30-win streak?

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How to drop a primary key using ActiveRecord migrations

- by knoopx

Due to a mistake I forgot to add :id => false to a has_many :trough table creation migration. Now I reverted the association back to a has_and_belongs_to_many and ActiveRecord throws an exception complaining about the presence of the primary key. I couldn't find any reference on the ActiveRecord documentation so, do you know if there is any standard, clean way of doing it?

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Please suggest some alternative to Drupal

- by abovesun

Drupal propose completely different approach in web development (comparing with RoR like frameworks) and it is extremely good from development speed perspective. For example, it is quite easy to clone 90% of stackoverflow functionality using Drupal. But it has several big drawbacks: it is f''cking slow (100-400 requests per page) db structure very complicated, need at least 2 tables for easy content (entity) type, CCK fields very easy generate tons of new db tables anti-object oriented, rather aspect-oriented bad "view" layer implementation, no strange forward layouts and so on. After all this items I can say I like Drupal, but I would like something same, but more elegant and more object oriented. Probably something like http://drupy.net/ - drupal emulation on the top of django. P.S. I wrote this question not for new holy word flame, just write if you know alternative that uses something similar approach.

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Advanced tasks using Web.Config transformation

- by dcadenas

Does anyone know if there is a way to "transform" specific sections of values instead of replacing the whole value or an attribute? For example, I've got several appSettings entries that specify the Urls for different webservices. These entries are slightly different in the dev environment than the production environment. Some are less trivial than others  <appSettings> <add key="serviceName1_WebsService_Url" value="http://wsServiceName1.dev.domain.com/v1.2.3.4/entryPoint.asmx" /> <add key="serviceName2_WebsService_Url" value="http://ma1-lab.lab1.domain.com/v1.2.3.4/entryPoint.asmx" /> </appSettings>  <appSettings> <add key="serviceName1_WebsService_Url" value="http://wsServiceName1.prod.domain.com/v1.2.3.4/entryPoint.asmx" /> <add key="serviceName2_WebsService_Url" value="http://ws.ServiceName2.domain.com/v1.2.3.4/entryPoint.asmx" /> </appSettings> So far, I know I can do something like this in the Web.Release.Config: <add xdt:Locator="Match(key)" xdt:Transform="SetAttributes(value)" key="serviceName1_WebsService_Url" value="http://wsServiceName1.prod.domain.com/v1.2.3.4/entryPoint.asmx" /> <add xdt:Locator="Match(key)" xdt:Transform="SetAttributes(value)" key="serviceName2_WebsService_Url" value="http://ws.ServiceName2.domain.com/v1.2.3.4/entryPoint.asmx" /> However, everytime the Version for that webservice is updated, I would have to update the Web.Release.Config as well, which defeats the purpose of simplfying my web.config updates. I know I could also split that URL into different sections and update them independently, but I rather have it all in one key. I've looked through the available web.config Transforms but nothings seems to be geared towars what I am trying to accomplish. These are the websites I am using as a reference: Vishal Joshi's blog, MSDN Help, and Channel9 video Any help would be much appreciated! -D

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How to cache pages using background jobs ?

- by Alexandre

Definitions: resource = collection of database records, regeneration = processing these records and outputting the corresponding html Current flow: Receive client request Check for resource in cache If not in cache or cache expired, regenerate Return result The problem is that the regeneration step can tie up a single server process for 10-15 seconds. If a couple of users request the same resource, that could result in a couple of processes regenerating the exact same resource simultaneously, each taking up 10-15 seconds. Wouldn't it be preferrable to have the frontend signal some background process saying "Hey, regenerate this resource for me". But then what would it display to the user? "Rebuilding" is not acceptable. All resources would have to be in cache ahead of time. This could be a problem as the database would almost be duplicated on the filesystem (too big to fit in memory). Is there a way to avoid this? Not ideal, but it seems like the only way out. But then there's one more problem. How to keep the same two processes from requesting the regeneration of a resource at the same time? The background process could be regenerating the resource when a frontend asks for the regeneration of the same resource. I'm using PHP and the Zend Framework just in case someone wants to offer a platform-specific solution. Not that it matters though - I think this problem applies to any language/framework. Thanks!

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Problem with displaying content when using RJS

- by Shreyas Satish

I'm quite sure this is a silly error but I'm unable to spot it. Please help me out on this. This is my controller code def filter_by_content @articles = Article.find(:all) end My RJS (filter_by_content.rjs) update_page do |page| page.replace_html 'articles', :partial => 'main/filtered', :object => @articles end My Partial 'filtered' <div id = "articles"> <% if @articles %> <% @articles.each do |article| %> <%= article.title %> <% end %> <% end %> </div> I checked my server, and the articles are sure getting fetched but the problem is with displaying them. Thanks !

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Has any one used client_side_validations gem with Chosen.js dropdown?

- by Abid

I am using chosen.js (http://harvesthq.github.com/chosen/). I was wondering if anyone has been able to use chosen select boxes and client_side_validations together. The issue is that when we use chosen it hides the original select element and renders its own dropdown instead, and when we focus out the validation isn't called and also when the validation message is shown it is shown with the original select element so positioning of the error isnt also correct. What could be a good way to handle this, My be we can change some code inside ActionView::Base.field_error_proc which currently looks something like ActionView::Base.field_error_proc = Proc.new do |html_tag, instance| unless html_tag =~ /^<label/ %{<div class="field_with_errors">#{html_tag}<label for="#{instance.send(:tag_id)}" class="message">#{instance.error_message.first}</label></div>}.html_safe else %{<div class="field_with_errors">#{html_tag}</div>}.html_safe end end Any ideas ? Edit 1: I have the following solution that is working for me now. applied a class "chzn-dropdown" to all my selects that were being displayed by chosen used the following callback provided by client_side_validations Gem clientSideValidations.callbacks.element.fail = function(element, message, callback) { if (element.data('valid') !== false) { if(element.hasClass('dropdown')){ chzn_element = $('#'+element.attr('id')+'_chzn'); console.log(chzn_element); chzn_element.append(""+message+""); } else{ callback(); } } } Thanks

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When to Store Temporary Values in Hidden Field vs. Session vs. Database?

- by viatropos

I am trying to build a simple OpenID login panel similar to how Stack Overflow's works. The goal is: User clicks OpenID/Oauth provider OpenID/Oauth stuff happens, we end up with the result (already made that) Then we want to confirm that the user wants to actually create a new account (vs. associating account with another OpenID account). In StackOverflow, they keep a hidden field on a form that looks like this: <form action="/users/openidconfirm" method="post"> <p>This is an OpenID we haven't seen on Stack Overflow before:</p> <p class="openid-identifier">https://me.yahoo.com/a/some-hash</p> <p>Do you want to associate this OpenID with your Stack Overflow account?</p> <div> <input type="hidden" name="fkey" value="9792ab2zza1q2a4ac414casdfa137eafba7"> <input type="hidden" name="s" value="c1a3q133-11fa-49r0-a7bz-da19849383218"> <input type="submit" value="Associate OpenID"> <input type="button" value="Cancel" onclick="window.location.href = 'http://stackoverflow.com/users/169992/viatropos?s=c1a3q133-11fa-49r0-a7bz-da19849383218'"> </div> </form> Initial question is, what are those hashes fkey and s? Not that I really care what these specific hashes are, but what it seems like is happening is they have processed the openid response and saved it to the DB in a temporary object or something, and from there they generate these keys, because they don't look like Oauth keys to me. Main situation is: after I have processed OpenID/Oauth responses, I don't yet want to create a new user/account until the user submits the "confirm" form. Should I store the keys and tokens temporarily in a "Confirm" form like this? Or is there a better way? It seems that using a temp database object would be a lot of work to manage properly. Thanks for the help. Lance

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merging arrays of hashes

- by Ben

I have two arrays of hashes. Array1 => [{attribute_1 = A, attribute_2 = B}, {attribute_1 = A, attribute_2 = B}] Array2 => [{attribute_3 = C, attribute_2 = D}, {attribute_3 = C, attribute_4 = D}] Each hash in the array is holding attributes for an object. In the above example, there are two objects that I'm working with. There are two attributes in each array for each object How do I merge the two arrays? I am trying to get a single array (there is no way to get a single array from the start because I have to make two different API calls to get these attributes). DesiredArray => [{attribute_1 = A, attribute_2 = B, attribute_3 = C, attribute_2 = D}, {attribute_1 = A, attribute_2 = B, attribute_3 = C, attribute_2 = D}] I've tried a couple things, including the iteration methods and the merge method, but I've been unable to get the array I need.

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Eclipse users: Do you use Aptana too?

- by Glenn

This San Mateo development company makes a freely downloadable convenient packaging of many plugins for Eclipse called Aptana. I was recently in an environment where Aptana came pre-installed. Not only is it a good IDE for RoR, it also does a somewhat decent job (sans debugging) for PHP, Python, HTML, CSS, and Javascript. According to their own web site, their IDE also supports Adobe Air and the iPhone. If you are currently using Eclipse, then do you also use Aptana too? What, if any, are the drawbacks to using Aptana?

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How do I fix this NameError?

- by Kyle Kaitan

I want to use the value v inside of an instance method on the metaclass of a particular object: v = ParserMap[kind][:validation] # We want to use this value later. s = ParserMap[kind][:specs] const_set(name, lambda { p = Parser.new(&s) # This line starts a new scope... class << p define_method :validate do |opts| v.call(self, opts) # => NameError! The `class` keyword above # has started a new scope and we lost # old `v`. end end p }) Unfortunately, the class keyword starts a new scope, so I lose the old scope and I get a NameError. How do I fix this?

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