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  • Resque: Slow worker startup and Forking

    - by David John
    I'm currently moving my application from a Linode setup to EC2. Redis is currently installed on a remote instance with various worker instances interacting with the queue. Thats all going fantastic. My problem is with the amount of time it takes for a worker to be 'instantiated' and slow forking. Starting a worker will usually take between 30 seconds and a minute(from god.rb starting the worker rake task and the worker actively starting work on the queue). I could live with that, but I've not experienced such a wait time on my current Linode production box so I believe its one of my symptoms to a bigger problem. Next issue is that jobs that took a second or less in my previous environment now seem to take about 5 to 10 times longer.. I'm assuming this must be some sort of issue with my Ubuntu install on EC2? One notable difference is that I'm running REE 1.8.7-2010.01 in my new setup, and REE 1.8.6 on the old Linode boxes. Anyone else experienced these issues?

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  • How do you prevent Git from printing 'remote:' on each line of the output of a post-recieve hook?

    - by Matt Hodan
    I recently configured an EC2 instance with a Git deployment workflow that resembles Heroku, but I can't seem to figure out how Heroku prevents the Git post-receive hook from outputting 'remote:' on each line. Consider the following two examples (one from my EC2 project and one from a Heroku project): My EC2 project: git push prod master Counting objects: 9, done. Delta compression using up to 2 threads. Compressing objects: 100% (5/5), done. Writing objects: 100% (5/5), 456 bytes, done. Total 5 (delta 3), reused 0 (delta 0) remote: remote: Receiving push remote: Deploying updated files (by resetting HEAD) remote: HEAD is now at bf17da8 test commit remote: Running bundler to install gem dependencies remote: Fetching source index for http://rubygems.org/ remote: Installing rake (0.8.7) remote: Installing abstract (1.0.0) ... remote: Installing railties (3.0.0) remote: Installing rails (3.0.0) remote: Your bundle is complete! It was installed into ./.bundle/gems remote: Launching (by restarting Passenger)... done remote: To ssh://[email protected]/~/apps/app_name e8bd06f..bf17da8 master -> master Heroku: $> git push heroku master Counting objects: 179, done. Delta compression using up to 2 threads. Compressing objects: 100% (89/89), done. Writing objects: 100% (105/105), 42.70 KiB, done. Total 105 (delta 53), reused 0 (delta 0) -----> Heroku receiving push -----> Rails app detected -----> Gemfile detected, running Bundler version 1.0.3 Unresolved dependencies detected; Installing... Using --without development:test Fetching source index for http://rubygems.org/ Installing rake (0.8.7) Installing abstract (1.0.0) ... Installing railties (3.0.0) Installing rails (3.0.0) Your bundle is complete! It was installed into ./.bundle/gems Compiled slug size is 4.8MB -----> Launching... done http://your_app_name.heroku.com deployed to Heroku To [email protected]:your_app_name.git 3bf6e8d..642f01a master -> master

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  • Where to put to_xls and from_xls in a rails app

    - by Joe Arasin
    So I have a model that I need to be able to serialize to/read from an Excel(XLS) document. I am a bit of a loss as to where this code actually belongs. My initial thought is that the to_xls is a view, but after poking around and seeing things like (to|from)_xml and (to|from)_json in ActiveRecord, I was wondering if maybe this stuff belonged in the model. Alternatively, does it belong in just a whole separate container somewhere? For what it's worth, users will be downloading models from the site, modifying them in excel, then posting them.

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  • link_to for calling an action, instead of a button_to

    - by Brian Roisentul
    I'd like to call an action with a link_to button without being redirected to another page(I don't want ajax). For you to have an idea, I'm trying to accomplish a sort "link button" in a search page. So, when the link is clicked, the page should be refreshed showing the list ordered as I tell it in the action. If I do the following in my view, it will ask me for a template called as the action, and I don't want it: <%= link_to 'M&Aacute;S RELEVANTES', search_filter_relevance_path %> My routes file looks like this: map.search_filter_relevance "/anuncios/buscar", :controller => 'announcements', :action => 'search_filter_relevance' And my controller looks like this(I haven't developed the functionality yet): def search_filter_relevance end Any help on this will be appreciated.

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  • Retrieving all objects in code upfront for performance reasons

    - by ming yeow
    How do you folks retrieve all objects in code upfront? I figure you can increase performance if you bundle all the model calls together? This makes for a bigger deal, especially if your DB cannot keep everything in memory def hitDBSeperately { get X users ...code get Y users... code get Z users... code } Versus: def hitDBInSingleCall { get X+Y+Z users code for X code for Y... }

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  • About to migrate :string but I'm thinking :text might be better. Performance/Purpose?

    - by Sam
    class CreateScrapes < ActiveRecord::Migration def self.up create_table :scrapes do |t| t.text :saved_characters t.text :sanitized_characters t.string :href t.timestamps end end def self.down drop_table :scrapes end end I'm about to rake db:migrate and I'm think about the attribute type if I should be using text or string. Since saved_characters and sanitized_characters will be arrays with thousands of unicode values, its basically comma delimited data, I'm not sure if `:text' is really the right way to go here. What would you do?

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  • JQuery date picker does not firing in ajax page using Rails

    - by prabu
    Hi Here I have using datepicker from JQueryUI in my public/javascript folder as effects,prototype,control,dragdrop js files. in my public folder contains jqueryui development buddle. (css,js,development-bundle) in layout/application.rhtml <%= stylesheet_link_tag 'application' %> <%=javascript_include_tag :defaults%> <%= stylesheet_link_tag '/jquery-ui/css/custom-theme/jquery-ui-1.8.1.custom.css' %> <%=javascript_include_tag "/jquery-ui/js/jquery-1.4.2.min.js"%> <%=javascript_include_tag "/jquery-ui/js/jquery-ui-1.8.1.custom.min.js"%> <script> $(document).ready(function(){ var $j=jQuery.noConflict(); $j( '#date' ).datepicker({ dateFormat: 'dd-mm-yy' }); }); </script> in home/index.rhtml <%title "Home"%> <%=link_to "Add Details" ,:action=>"add"%> <%=link_to_remote "Ajax Add Details", :update=>"add" , :url=>{ :action=>"add" }%> <div id='add' /> in home/add.rhtml <%title "Add details"%> <%form_tag :action=>"create" do%> Name : <%=text_field_tag "name" ,"",:size=>15%> DOB : <%=text_field_tag "dob","",:id=>"date"%> <%=submit_tag "Save"%> <%end%> the datepicker works when I run home/add.rhtml directly but the datepicker not work when i run ajax page home/index.rhtml Any solutions for that,????

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  • blacklist test requests from google analytics using watir

    - by Anjali
    Hi, I have to automate tests for a web application which runs google analytics script. I have chosen watir for the automation since I can script all the test cases with the same. The only problem is i dont know how to remove my test requests to the web apps from the google analytics report. Can anyone help me with the same? Is it possible to do that with watir? If not watir, is there any other web automation tool which I could use? ~Thanks and Regarads

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  • In Sinatra, best way to serve iPhone layout vs. normal layout?

    - by Doug
    I'm writing a Sinatra app which needs to render different layouts based on whether the user is using an iPhone or a regular browser. I can detect the browser type using Rack-Mobile-Detect but I'm not sure of the best way to tell Sinatra which layout to use. Also, I have a feeling that how I choose to do this may also break page caching. Is that true? Example code: require 'sinatra/base' require 'haml' require 'rack/mobile-detect' class Orca < Sinatra::Base use Rack::MobileDetect helpers do def choose_layout if request.env['X_MOBILE_DEVICE'] == :iPhone # use iPhone layout else # use normal layout end end end before do # should I use a before filter? choose_layout() end get '/' do haml :home # with proper layout end end #Class Orca

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  • Devise and cancan gems: has_many association

    - by tiktak
    I use devise and cancan gems and have simple model association: user has_many subscriptions, subscription belongs_to :user. Have following SubscriptionsController: class SubscriptionsController < ApplicationController load_and_authorize_resource :user load_and_authorize_resource :subscription, through: :user before_filter :authenticate_user! def index @subscriptions = @user.subscriptions.paginate(:page => params[:page]).order(:created_at) end #other actions end And Cancan Ability.rb: class Ability include CanCan::Ability def initialize(user) user ||=User.new can [:index, :show], [Edition, Kind] if user.admin? can :manage, :all elsif user.id can [:read, :create, :destroy, :pay], Subscription, user_id: user.id can [:delete_from_cart, :add_to_cart, :cart], User, id: user.id end end end The problem is that i cannot use subscriptions actions as a user but can as a admin. And have no problems with UsersController. When i delete following lines from SubscriptionsController: load_and_authorize_resource :user load_and_authorize_resource :subscription, through: :user before_filter :authenticate_user! Have no problems at all. So the issue in these lines or in Ability.rb. Any suggestions?

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  • Rails - Help scoring an online quiz in RoR

    - by ChrisWesAllen
    I'm trying to grade a quiz application I would like to make. I have a questions model with and ask(the actual question), 4 choices(a-d), and a correct answer(string). In the view I have the 4 question being diplayed then the correct answer choice (This is just a test for functionality) and then I created a text_field to accept the users answer choice and a button to refresh the index action which has the scoring logic, for now.. --Do I need to put the text_field within a form_tag? <p>1. <%= h @question.q1 %></p> <p>2. <%= h @question.q2 %></p> <p>3. <%= h @question.q3 %></p> <p>4. <%= h @question.q4 %></p> <p>Answer: <%= h @question.correct %></p> <%= text_field_tag :choice, params[:choice] %> <%= button_to "Grade", {:controller => 'site', :action => "index"} %> <p> <%= @answer %></p> Heres the index controller action def index @question = Question.find(1) if @question.correct == params[:choice] @answer = 'right' else @answer = 'wrong' end end Its not really working. The textfield is supposed to take a letter choice like 'a' or 'c' and compare it with the correct answer in the database. I would love this to work by radiobuttons, but I'm a newbie to rails so I thought I'd take baby steps. So if anyone can help me with how to fix this by string, or preferably by radiobuttons, I'd really appreciate it.

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  • Rails time zone selector: intelligently selecting a default

    - by Tim Sullivan
    When signing up for an account on one of my apps, we need to store the time zone is in. We're using the time zone selector, which is fine, but I'd like to set the default value to something that it likely the user's current time zone. Is there an easy way, either on the server or using JavaScript, to set the time zone selector to the time zone the user is currently in?

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  • Does to_json require parameters? what about within rails?

    - by Harry Wood
    Does to_json require parameters? what about within rails? I started getting the error "wrong number of arguments (0 for 1)" when doing myhash.to_json Unfortunately I'm not sure when this error started happening, but I guess it relates to some versions of either rails or the json gem. I suppose my code (in a rails controller) is using the ActiveSupport::JSON version of to_json, rather than the to_josn method supported by the json gem. ActiveSupport::JSON vs JSON In environment.rb I have RAILS_GEM_VERSION = '2.3.2' and also config.gem "json", :version=> '1.1.7' It's just a simple hash structure containing primitives which I want to convert in my controller, and it was working, but now I can't seem to run to_json without passing parameters.

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  • How do you unpack gems using jruby on rails 2.3?

    - by James Moore
    I'm trying to unpack all the system gems to end up with a standalone Rails directory including all the rails gems and all the system gems. I'm starting with a bare rails setup; just did a jruby -S rails and a 'generate jdbc'. I then add a config.gem 'jdbc-mysql' to environment.rb and do the jruby -S rake gems:unpack:dependencies. After unpacking, if I do a rake I get: no such file to load -- jdbc-mysql Is there something else you need to do to get the jdbc gem unpacked? I'm using jruby 1.4.0 (and moving to 1.5 is on my todo list) and rails 2.3.8.

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  • Conditionally hide a portion of a partial when viewed from another controller

    - by user284194
    I'm using a partial from my messages controller in my tags controller. The portion in question looks like this: <% unless message.tag_list.nil? || message.tag_list.empty? %> <% message.tags.each do |t| %> <div class="tag"><%= link_to t.name.titleize, tag_path(t) %></div> <% end %> <% end %> Is there a way to hide this portion of the partial only when it is viewed from the tags controller? Thanks for reading my question.

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  • form serialize problem

    - by ZX12R
    I have a form. I am trying to validate it through AJAX GET requests. So i am trying to send the field values in the GET request data. $('#uxMyForm').serialize(); the problem it is returning something undecipherable. I have used serialize before. This is totally bizzare. the return value of serialize is authenticity_token=oRKIDOlPRqfnRehedcRRD7WXt6%2FQ0zLeQqwIahJZJfE%3D&customer%5BuxName%5D=&customer%5BuxEmail%5D=&customer%5BuxResidentialPhone%5D=&customer%5BuxMobilePhone%5D=&customer%5BuxDateOfBirth%5D=&customer%5BuxAddress%5D=&customer%5BuxResidentialStatus%5D= i have no idea how to use this. Thanks

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  • Create calendardateselect from javascript

    - by 99miles
    Not sure why I can't figure this out. When a user makes a selection, a javascript method is called, at which point I want to add a calendardateselect to an existing div tag from the javascript. According to the docs, it seems like this should work: var a = new CalendarDateSelect( document.getElementById("date_area"), {embedded:true, year_range:10} ); $('date_area').insert(a); ... or maybe this.... var newScript = document.createElement('script'); newScript.type = 'text/javascript'; var tn = document.createTextNode("new CalendarDateSelect( $(this).previous() )"); newScript.appendChild(tn); $('date_area').insert(newScript); http://code.google.com/p/calendardateselect/wiki/JavascriptDocumentation But neither of them are working. I feel like I've tried everything. Ideas?

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