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  • Attribute value nil

    - by mridula
    Can someone tell me why is this happening? I have created a social networking website using Ruby on Rails. This is my first time programming with RoR. I have a model named "Friendship" which contains an attribute "blocked" to indicate whether the user has blocked another user. When I run the following in IRB - friendship = u.friendships.where(:friend_id => 22).first IRB gives me - Friendship Load (0.6ms) SELECT `friendships`.* FROM `friendships` WHERE `friendships`.`user_id` = 17 AND `friendships`.`friend_id` = 22 LIMIT 1 => #<Friendship id: 33, user_id: 17, friend_id: 22, created_at: "2012-04-07 10:29:49", updated_at: "2012-04-07 10:29:49", blocked: 1> As u can see, the "blocked" attribute has value '1'. But when I run the following 1.9.2-p290 :030 > friendship.blocked => nil - it says, the value of blocked is 'nil' and not '1'. Why is this happening? This could be a very silly mistake but I am new to RoR, so kindly help me! I initially didn't include the accessor method for 'blocked'.. I tried that, and still its giving the same result.. Following is the Friendship model.. class Friendship < ActiveRecord::Base belongs_to :friend, :class_name => "User" validates_uniqueness_of :friend_id , :scope => :user_id attr_accessor :blocked attr_accessible :blocked end Here is the schema of the table: 1.9.2-p290 :009 > friendship.class => Friendship(id: integer, user_id: integer, friend_id: integer, created_at: datetime, updated_at: datetime, blocked: integer)

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  • Optimizing landing pages

    - by Oleg Shaldybin
    In my current project (Rails 2.3) we have a collection of 1.2 million keywords, and each of them is associated with a landing page, which is effectively a search results page for a given keywords. Each of those pages is pretty complicated, so it can take a long time to generate (up to 2 seconds with a moderate load, even longer during traffic spikes, with current hardware). The problem is that 99.9% of visits to those pages are new visits (via search engines), so it doesn't help a lot to cache it on the first visit: it will still be slow for that visit, and the next visit could be in several weeks. I'd really like to make those pages faster, but I don't have too many ideas on how to do it. A couple of things that come to mind: build a cache for all keywords beforehand (with a very long TTL, a month or so). However, building and maintaing this cache can be a real pain, and the search results on the page might be outdated, or even no longer accessible; given the volatile nature of this data, don't try to cache anything at all, and just try to scale out to keep up with traffic. I'd really appreciate any feedback on this problem.

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  • Architecture of finding movable geotagged objects

    - by itsme
    I currently have a Postgres DB filled with approx. 300.000 data-sets of moving vehicles all over the world. My very frequently repeated query is: Give me all vehicles in a 5/10/20mile radius. Currently I spend around 600 to 1200 ms in the DB to prepare the set of located vehicle-objects. I am looking to vastly improve this time by ideally one or two orders of magnitude if possible. I am working in a Ruby on Rails 3.0beta environment if this is relevant. Any ideas how to architect the whole system to accelerate this query? Any NoSQL database able to deliver this kind of geolocation performance? I know of MongoDB working on an extension to facilitate this scenario but haven't tried it yet. Any intelligent use of Redis to achieve this? One problem with SQL-DBs here seems to be that I can't possibly use indexes because my vehicles are mostly moving around, meaning I had to constantly created DB indexes which, by itself, is probably more expensive than just doing the searching without index. Looking forward to your thoughs, Thanks!

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  • Multi-model form problem

    - by raphael_turtle
    (I'm just learning rails so....) I have a photo model and a gallery model, habtm associations and a join table. I'm making a photo gallery. The gallery page has a title field and description field. User creates gallery title, then goes to the photo page and checkboxes each image they want in that gallery. I get the error "undefined method `to_i' for ["1", {"title"="1"}]:Array" when trying to save/update a photo with a gallery title(with the checkbox) <% form_for @photo, :html => {:multipart => true } do |f| %> <%= f.error_messages %> <p> <%= f.label :title %> <%= f.text_field :title %> </p> <p> <%= f.label :description %> <%= f.text_area :description %> </p> <p> <%= f.label :image %> <%= f.file_field :image %> </p> <% for gallery in @photo.galleries %> <% fields_for "painting[gallery_attributes][]", gallery do |g| %> <div> <%= g.check_box :title %> <%= gallery.title %> </div> <% end %> <% end %> <p><%= submit_tag 'Update' %></p> <% end %> How much of this is horribly wrong? Can someone point me in the right direction?, I can't find any tutorials relating to this for 2.3 and above.

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  • Is this the correct way to set up has many with multiple associations?

    - by user323763
    I'm trying to set up a new project for a music site. I'm learning ROR and am a bit confused about how to make join models/tables. Does this look right? I have users, playlists, songs, and comments. Users can have multiple playlists. Users can have multiple comments on their profile. Playlists can have multiple songs. Playlists can have comments. Songs can have comments. class CreateTables < ActiveRecord::Migration def self.up create_table :users do |t| t.string :login t.string :email t.string :firstname t.string :lastname t.timestamps end create_table :playlists do |t| t.string :title t.text :description t.timestamps end create_table :songs do |t| t.string :title t.string :artist t.string :album t.integer :duration t.string :image t.string :source t.timestamps end create_table :comments do |t| t.string :title t.text :body t.timestamps end create_table :users_playlists do |t| t.integer :user_id t.integer :playlist_id t.timestamps end create_table :playlists_songs do |t| t.integer :playlist_id t.integer :song_id t.integer :position t.timestamps end create_table :users_comments do |t| t.integer :user_id t.integer :comment_id t.timestamps end create_table :playlists_comments do |t| t.integer :playlist_id t.integer :comment_id t.timestamps end create_table :songs_comments do |t| t.integer :song_id t.integer :comment_id t.timestamps end end def self.down drop_table :playlists drop_table :comments drop_table :songs_comments drop_table :users_comments drop_table :users_playlists drop_table :users drop_table :playlists drop_table :songs drop_table :playlists end end

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  • Integration test for H1 text failing when it should be passing (Rspec and Capybara)

    - by rebec
    Below you can see my test for what happens when a user tries to access the page to edit a profile photo that they don't own. I've used the same test on the NEW action, where it worked fine, but it surprised me by failing when I copied it down to the EDIT action tests. I've used save_and_open_page to test what Capybara's seeing (as you can see below); the resulting page definitely has an h1 with the specified text in it. No spelling errors, and case is all the same as in the test. I've tried using both have_css and have_selector. Both fail. I'm still learning Ruby, Rails, Rspec and especially Capybara (was using webrat previously and recently switched over), and wonder if I'm misconceiving of something that's making me expect this to pass when it doesn't. Any thoughts? Thanks! describe "EDIT" do let(:user) { FactoryGirl.create(:user) } let(:different_user) { FactoryGirl.create(:user) } let(:admin_user) { FactoryGirl.create(:user, role: "admin") } let(:profile_photo1) { FactoryGirl.create(:profile_photo, user: user) } subject { page } context "when signed in as any member" do before { login different_user visit edit_user_profile_photo_path(:id => profile_photo1, :user_id => profile_photo1.user_id) save_and_open_page } # It should deny access with an Unauthorised/Forbidden message. it { should have_css('h1', text: "Unauthorised/Forbidden.") } end

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  • form_form and custom parameter in path_prefix

    - by fguillen
    Hi people, I have this route: # config/routes.rb map.namespace :backshop, :path_prefix => '/:shop_id/admin' do |backshop| backshop.resources :items end And I want to use the form_for magic to reuse the same form on both: new and edit views: <% form_for [:backshop, @item] do |f| %> This used to works, and used to build a create url for the item or update url for the item depending on the status of the @item object. But this is not working on this case because the routes don't exists without the shop_id parameter, and I don't know how to say to the form_for something like this: <% form_for [:backshop, @item], :shop_id => @shop do |f| %> Because it tries to use the @item like the :shop_id parameter. Or like this <% form_for [:backshop, @shop, @item] do |f| %> Because it tries to build this url: backshop_shop_order_path I Know I can just to extract the form_for declaration from the partial and do different calls on depending if new or edit: <% form_for( @item, :url => backshop_items_path( @shop ) ) do |f| %> and <% form_for( @item, :url => backshop_item_path( @shop, @item ) ) do |f| %> But I just wanted don't do this because I have a bunch of models and is a few boring :) Thanks for any suggestion f.

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  • Merging rows with uniqueness constraints

    - by Flambino
    I've got a little time-tracking web app (implemented in Rails 3.2.8 & MySQL). The app has several users who add their time to specific tasks, on a given date. The system is set up so a user can only have 1 time entry (i.e. row) per task per date. I.e. if you add time twice on the same task and date, it'll add time to the existing row, rather than create a new one. Now I'm looking to merge 2 tasks. In the simplest terms, merging task ID 2 into task ID 1 would take this time | user_id | task_id | date ------+----------+----------+----------- 10 | 1 | 1 | 2012-10-29 15 | 2 | 1 | 2012-10-29 10 | 1 | 2 | 2012-10-29 5 | 3 | 2 | 2012-10-29 and change it into this time | user_id | task_id | date ------+----------+----------+----------- 20 | 1 | 1 | 2012-10-29 <-- time values merged (summed) 15 | 2 | 1 | 2012-10-29 <-- no change 5 | 3 | 1 | 2012-10-29 <-- task_id changed (no merging necessary) I.e. merge by summing the time values, where the given user_id/date/task combo would conflict. I figure I can use a unique constraint to do a ON DUPLICATE KEY UPDATE ... if I do an insert for every task_id=2 entry. But that seems pretty inelegant. I've also tried to figure a way to first update all the rows in task 1 with the summed-up times, but I can't quite figure that one out. Any ideas?

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  • Sliding div in jquery

    - by Sean
    I am trying to make a toolbar type section on the top of my site. I just need one div that will be hidden by default, and a button that will be hanging off the bottom of that div. When it is clicked, the div should slide down (with the button still on bottom). And upon clicking, it should slide back up. Here is what I currently have: <div id="account_toolbar" style="background-color:#fff;"> <div id="toolbar_contents" style="display:none;"> This is the account toolbar so far </div> <div id="button" style="background-color: #ff0000;"><%= image_tag "templates/_global/my_account.png", :id => "my_account_btn", :style => "float: right; margin-right: 100px;" %></div> </div> The image tag is using ruby/rails syntax, so pay no attention to that. It will render like any other image tag. Here is the jquery i'm using: $('#my_account_btn').click(function () { $('#toolbar_contents').slideToggle(); }); So, this is actually working for the most part. My problem however is that the spacing where the toolbar content div goes, pushes the account button down. When it slides up or down it temporarily attaches itself to the bottom of the div, then jumps back down once it is finished sliding (leaving a gap between the bottom of the hidden div and the top of the account button). I hope that makes sense. thanks

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  • what is the wrong with this spec and controller code?

    - by user1609468
    I'm trying to test an existing rails project with rspec. And I want to test a controller but getting an error which I can't solve :S Here is the my spec code ; require 'spec_helper' describe BriefNotesController do before(:all) do @customer=Factory(:customer) @project=Factory(:project_started, :owner => @customer) end context 'get :new' do it 'should redirect to login page for not signed in users' do get :new, :project_id => @project.id response.should redirect_to("/kullanici-girisi") end it 'should be success and render new brief note page for project owner' do sign_in @customer get :new, :project_id => @project.id response.should be_success end end end Here is the my controller code ; class BriefNotesController < ApplicationController before_filter :authenticate_user! before_filter :find_project def new @brief_note = @project.brief_notes.new end def create @brief_note = @project.brief_notes.build(params[:brief_note]) if @brief_note.save redirect_to brief_project_path(@project) else render :action => :new end end private def find_project @project = current_user.projects.find_by_cached_slug([params[:project_id]]) end end I think current_user.projects.find_by_cached_slug method don't work. So this is the error; Failures: 1) BriefNotesController get :new should be success and render new brief note page for project owner Failure/Error: get :new, :project_id => @project.id NoMethodError: undefined method `brief_notes' for nil:NilClass # ./app/controllers/brief_notes_controller.rb:6:in `new' # ./spec/controllers/brief_notes_controller_spec.rb:19:in `block (3 levels) in <top (required)>'

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  • counter_cache not updating on the model after save

    - by sehnsucht
    I am using a counter_cache to let MySQL do some of the bookkeeping for me: class Container has_many :items end class Item belongs_to :container, :counter_cache => true end Now, if I do this: container = Container.find(57) item = Item.new item.container = container item.save in the SQL log there will be an INSERT followed by something like: UPDATE `containers` SET `items_count` = COALESCE(`items_count`, 0) + 1 WHERE `containers`.`id` = 57 which is what I expected it to do. However, the container[:items_count] will be stale! ...unless I container.reload to pick up the updated value. Which in my mind sort of defeats part of the purpose of using the :counter_cache in favor of a custom built one, especially since I may not actually want a reload before I try to access the items_count attribute. (My models are pretty code-heavy because of the nature of the domain logic, so I sometimes have to save and create multiple things in one controller call.) I understand I can tinker with callbacks myself but this seems to me a fairly basic expectation of the simple feature. Again, if I have to write additional code to make it fully work, it might as well be easier to implement a custom counter. What am I doing/assuming wrong?

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  • Can't push to git hub

    - by John
    I just completed chapter one of the Ruby on Rails Tutorial by Hartl. Posted about one minor hitch previously. Now I started chapter two. I swear I did everything by the book, but now when I try: git push -u origin master I get the following messages after entering my passphrase: ERROR: repository not found fatal: could not read from remote repository Please make sure you have the correct access rights and that the repository exists. When I down loaded heroku tools I think it installed a second version of ruby on my machine. In any case I now have two version listed under All Programs. Could this have screwed thing up? The two versions are Ruby 1.9.2-p290 and 1.9.3-p327. Also when I open the command prompt using 1.9.2 there is a wierd thing at the top before I do anything: 'C:\Program' is not recognized as an internal or external command, operable program or batch file. This is then followed by the normal prompt on the next line. I'm wondering if the use of my public keys have some how gotten screwed up. Any help would be appreciated.

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  • jQuery validation plugin: valid() does not work with remote validation ?

    - by a-dilla
    I got started by following this awesome tutorial, but wanted to do the validation on on keyup and place my errors somewhere else. The remote validation shows its own error message at the appropriate times, making me think I had it working. But if I ask specifically if a field with remote validation is valid, it says no, actually, its not. In application.js I have this... $("#new_user").validate({ rules: { "user[login]": {required: true, minlength: 3, remote: "/live_validations/check_login"}, }, messages: { "user[login]": {required: " ", minlength: " ", remote: " "}, } }); $("#user_login").keyup(function(){ if($(this).valid()){ $(this).siblings(".feedback").html("0"); }else{ $(this).siblings(".feedback").html("1"); } }) And then this in the rails app... def check_login @user = User.find_by_login(params[:user][:login]) respond_to do |format| format.json { render :json => @user ? "false" : "true" } end end I think that my problem might have everything to do with this ticket over at jQuery, and tried to implement that code, but, being new to jQuery, it's all a bit over my head. When I say bit, I mean way way. Any ideas to fix it, or a new way to look at it, would be a big help.

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  • Complex Forms Generating Error

    - by user1648020
    I am working on an application that allows students to create a catalog of courses they are taking for a semester. I have created models for user; course; subject and category. Users can have many courses. Each course can have many subjects and categories. The tables for courses, subjects and categories include the following: Catalog: user_id; subject_id, category_id and course_id Courses: user_id; coursedetail_id Coursedetail: name; description Subject: name; description Category: name; description The idea is that an Admin can create a list of courses; subjects and categories and that the user can select the courses they want to add to their catalog. I have seperated courses and coursedetails because I envision that the coursedetails will grow overtime and the courses table will allow me to join the user_id and cousres details to rreport on if necessary. I attempted to follow Ryan's railscast on Complex Forms thinking that that I should use a complex form and has many relationship to get things working -- but I get an error in the catalog controller - cannot locate catalog_id which I know is in the table. I am now not sure if complex forms is the way to go or I should be looking at another direction to get the appropriate form in place. Any assistance would be appreciated.

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  • '??' Not a valid unicode character, but in the unicode character set?

    - by Steve Cotner
    Short story: I can't get an entity like '𠂉' to store in a MySQL database, either by using a text field in a Ruby on Rails app (with default UTF-8 encoding) or by inputting it directly with a MySQL GUI app. As far as I can tell, all Chinese characters and radicals can be entered into the database without problem, but not these rarely typed 'character components.' The character mentioned above is unicode U+20089 and html entity &#131209; I can get it to display on the page by entering <html>&#131209;</html> and removing html escaping, but I would like to store it simply as the unicode character and keep the html escaping in place. There are many other Chinese 'components' (parts of full characters, generally consisting of 2 or 3 strokes) that cause the same problem. According to this page, the character mentioned is in the UTF-8 charset: http://www.fileformat.info/info/unicode/char/20089/charset_support.htm But on the neighboring '...20089/index.htm' page, there's an alert saying it's not a valid unicode character. For reference, that entity can be found in Mac OS X by searching through the character palette (international menu, "Show Character Palette"), searching by radical, and looking under the '?' radical. Apologies if this is too open-ended... can a character like this be stored in a UTF-8-based database? How is this character both supported and unsupported, both present in the character set and not valid?

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  • Facebook Connect icon isn't showing up in Internet Explorer

    - by John Duff
    I'm working on a site that is using Facebook Connect and recently made some changes so that the main pages are cached and if you are not logged in (checked with an ajax call) it loads the Facebook Connect javascript and renders the connect button into the page. This works perfectly everywhere except Internet Explorer 7 and 8. The weird part is I render the buttons into a hidden Sign Up / Sign In form and when you show either of those the Connect buttons appear. You can take a look here and you will see the button in Firefox and not Internet Explorer. If you click Sign In the button will show up. This is a Rails app so on the server-side we're responding to an ajax call with rjs like this: page['signin-status'].replace(:partial => "common/layout/signin_menu") page.select('.facebook-connect').each do |value, index| value.replace(render(:partial => '/facebook/signin')) end page << <<-eos LazyLoader.load('http://static.ak.connect.facebook.com/js/api_lib/v0.4/FeatureLoader.js.php', function(){ FB.init('#{Facebooker.api_key}','/xd_receiver.html'); }); eos The first line is replacing the header, the second is the Connect buttons in the Modal dialogs. The partial being rendered into the header looks like this: <span id='signin-status'> <%= fb_login_button(remote_function(:url => "/facebook/connect"))%> | <%= link_to_function "Sign In", "showSignInForm();", :id => "signin" %> | <%= link_to_function "Sign Up", "showSignUpForm();", :id => "signup" %> </span> The Partial being rendered into the Modal dialogs looks like this: <div class='facebook-connect'> <div id="FB_HiddenContainer" style="position:absolute; top:-10000px; width:0px; height:0px;" ></div> <label>Or sign in with your Facebook account</label> <%= fb_login_button(remote_function(:url => "/facebook/connect"))%> </div> I find it very strange that showing the Modal dialog causes all the icons to show. Does anyone have any ideas or suggestions about what's going on?

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  • Getting uninitialized constant error when trying to run tests

    - by Ethan
    I just updated all my gems and I'm finding that I'm getting errors when trying to run Test::Unit tests. I'm getting the error copied below. That comes from creating new, empty Rails project, scaffolding a simple model, and running rake test. Tried Googling "uninitialized constant" and TestResultFailureSupport. The only thing I found was this bug report from 2007. I'm using OS X. These are the gems that I updated right before the tests stopped working: $ sudo gem outdated Password: RedCloth (4.2.1 < 4.2.2) RubyInline (3.8.1 < 3.8.2) ZenTest (4.1.1 < 4.1.3) bluecloth (2.0.4 < 2.0.5) capistrano (2.5.5 < 2.5.8) haml (2.0.9 < 2.2.1) hoe (2.2.0 < 2.3.2) json (1.1.6 < 1.1.7) mocha (0.9.5 < 0.9.7) rest-client (1.0.2 < 1.0.3) thoughtbot-factory_girl (1.2.1 < 1.2.2) thoughtbot-shoulda (2.10.1 < 2.10.2) Has anyone else seen this issue? Any troubleshooting suggestions? UPDATE On a hunch I downgraded ZenTest from 4.1.3 back to 4.1.1 and now everything works again. Still curious to know if anyone else has seen this or has any interesting comments or insights. $ rake test (in /Users/me/foo) /usr/local/bin/ruby -I"lib:test" "/usr/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake/rake_test_loader.rb" "test/unit/helpers/users_helper_test.rb" "test/unit/user_test.rb" /usr/local/lib/ruby/gems/1.8/gems/activesupport-2.3.2/lib/active_support/dependencies.rb:105:in `const_missing': uninitialized constant Test::Unit::TestResult::TestResultFailureSupport (NameError) from /usr/local/lib/ruby/gems/1.8/gems/test-unit-2.0.2/lib/test/unit/testresult.rb:28 from /usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `gem_original_require' from /usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `require' from /usr/local/lib/ruby/gems/1.8/gems/activesupport-2.3.2/lib/active_support/dependencies.rb:158:in `require' from /usr/local/lib/ruby/gems/1.8/gems/test-unit-2.0.2/lib/test/unit/ui/testrunnermediator.rb:9 from /usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `gem_original_require' from /usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `require' from /usr/local/lib/ruby/gems/1.8/gems/activesupport-2.3.2/lib/active_support/dependencies.rb:158:in `require' ... 6 levels... from /usr/local/lib/ruby/1.8/test/unit/autorunner.rb:214:in `run' from /usr/local/lib/ruby/1.8/test/unit/autorunner.rb:12:in `run' from /usr/local/lib/ruby/1.8/test/unit.rb:278 from /usr/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake/rake_test_loader.rb:5 /usr/local/bin/ruby -I"lib:test" "/usr/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake/rake_test_loader.rb" "test/functional/users_controller_test.rb"

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  • MongoMapper and migrations

    - by Clint Miller
    I'm building a Rails application using MongoDB as the back-end and MongoMapper as the ORM tool. Suppose in version 1, I define the following model: class SomeModel include MongoMapper::Document key :some_key, String end Later in version 2, I realize that I need a new required key on the model. So, in version 2, SomeModel now looks like this: class SomeModel include MongoMapper::Document key :some_key, String key :some_new_key, String, :required => true end How do I migrate all my existing data to include some_new_key? Assume that I know how to set a reasonable default value for all the existing documents. Taking this a step further, suppose that in version 3, I realize that I really don't need some_key at all. So, now the model looks like this class SomeModel include MongoMapper::Document key :some_new_key, String, :required => true end But all the existing records in my database have values set for some_key, and it's just wasting space at this point. How do I reclaim that space? With ActiveRecord, I would have just created migrations to add the initial values of some_new_key (in the version1 - version2 migration) and to delete the values for some_key (in the version2 - version3 migration). What's the appropriate way to do this with MongoDB/MongoMapper? It seems to me that some method of tracking which migrations have been run is still necessary. Does such a thing exist? EDITED: I think people are missing the point of my question. There are times where you want to be able to run a script on a database to change or restructure the data in it. I gave two examples above, one where a new required key was added and one where a key can be removed and space can be reclaimed. How do you manage running these scripts? ActiveRecord migrations give you an easy way to run these scripts and to determine what scripts have already been run and what scripts have not been run. I can obviously write a Mongo script that does any update on the database, but what I'm looking for is a framework like migrations that lets me track which upgrade scripts have already been run.

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  • Importing a large dataset into a database

    - by peaceful
    I'm a beginning programmer in the relevant areas to this question, so if possible, it'd be helpful to avoid assuming I know a lot already. I'm trying to import the OpenLibrary dataset into a local Postgres database. After it's imported, I plan to use it as a starting seed for a Ruby on Rails application that will include information on books. The OpenLibrary datasets are available here, in a modified JSON format: http://openlibrary.org/dev/docs/jsondump I only need very basic information for my application, much less than what is provided in the dumps. I'm only trying to get out book titles, author names, and relationships between books and authors. Below are two typical entries from their dataset, the first for an author, and the second for a book (they seem to have an entry for each edition of a book). The entries seem to lead off with a primary key, and then with a type, before including the actual JSON database dump. /a/OL2A /type/author {"name": "U. Venkatakrishna Rao", "personal_name": "U. Venkatakrishna Rao", "last_modified": {"type": "/type/datetime", "value": "2008-09-10 08:44:01.978456"}, "key": "/a/OL2A", "birth_date": "1904", "type": {"key": "/type/author"}, "id": 99, "revision": 3} /b/OL345M /type/edition {"publishers": ["Social Science Research Project, Dept. of Geography, University of Dacca"], "pagination": "ii, 54 p.", "title": "Land use in Fayadabad area", "lccn": ["sa 65000491"], "subject_place": ["East Pakistan", "Dacca region."], "number_of_pages": 54, "languages": [{"comment": "initial import", "code": "eng", "name": "English", "key": "/l/eng"}], "lc_classifications": ["S471.P162 E23"], "publish_date": "1963", "publish_country": "pk ", "key": "/b/OL345M", "authors": [{"birth_date": "1911", "name": "Nafis Ahmad", "key": "/a/OL302A", "personal_name": "Nafis Ahmad"}], "publish_places": ["Dacca, East Pakistan"], "by_statement": "[by] Nafis Ahmad and F. Karim Khan.", "oclc_numbers": ["4671066"], "contributions": ["Khan, Fazle Karim, joint author."], "subjects": ["Land use -- East Pakistan -- Dacca region."]} The size of the uncompressed dumps are enormous, about 2GB for the authors list, and 18GB for the book editions list. OpenLibrary does not provide any tools for this themselves, they provide a simple unoptimized Python script for reading in sample data (which unlike the actual dumps comes in pure JSON format), but they estimate if that was modified for use on their actual data it would take 2 months (!) to finish loading the data. How can I read this into the database? I assume I'll need to write a program to do this. What language and any guidance on how I should do it to finish in a reasonable amount of time? The only scripting language I have any experience with is Ruby.

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  • Nested attributes in the index view?

    - by user283179
    I seem to be getting error: uninitialized constant Style::Pic when I'm trying to render a nested object in to the index view the show view is fine. class Style < ActiveRecord::Base #belongs_to :users has_many :style_images, :dependent => :destroy accepts_nested_attributes_for :style_images, :reject_if => proc { |a| a.all? { |k, v| v.blank?} } #found this here http://ryandaigle.com/articles/2009/2/1/what-s-new-in-edge-rails-nested-attributes has_one :cover, :class_name => "Pic", :order => "updated_at DESC" accepts_nested_attributes_for :cover end class StyleImage < ActiveRecord::Base belongs_to :style #belongs_to :style_as_cover, :class_name => "Style", :foreign_key => "style_id" has_attached_file :pic, :styles => { :small => "200x0>", :normal => "600x> " } validates_attachment_presence :pic #validates_attachment_size :pic, :less_than => 5.megabytes end <% for style_image in @style.style_images %> <li><%= style_image.caption %></li> <div id="show_photo"> <%= image_tag style_image.pic.url(:normal) %></div> <% end %> As you can see from the above The main model style has many style_images, all these style_images are displayed in the show view but, in the the index view I wish to show one image which has been name and will act as a cover that is displayed for each style. in the index controller I have tried the following: class StylesController < ApplicationController layout "mini" def index @styles = Style.find(:all, :inculde => [:cover,]).reverse respond_to do |format| format.html # index.html.erb format.xml { render :xml => @styles } end end and the index <% @styles.each do |style| %> <%=image_tag style.cover.pic.url(:small) %> <% end %> class StyleImage < ActiveRecord::Base belongs_to :style #belongs_to :style_as_cover, :class_name => "Style", :foreign_key => "style_id" has_attached_file :pic, :styles => { :small => "200x0>", :normal => "600x> " } validates_attachment_presence :pic #validates_attachment_size :pic, :less_than => 5.megabytes end In the style_images table there is an cover_id also. From the about you can see that I have included the cover in the controller and the model. I have know idea where I'm going wrong here! If any one can help please do!

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  • Authlogic openid: getting undefined method openid_identifier? error in functional test

    - by usr
    I use Authlogic with the Authlogic-openid addon (I gem installed ruby- openid and script/plugin install git://github.com/rails/open_id_authentication.git) and get two errors. First when running functional test, I get an undefined method openid_identifier? message on a line in my new.html.erb file when running the UsersControllerTest. The line is: <% if @user.openid_identifier? %> When running script/console I can access this method without any problem. Second when testing the openid functionality and registering a new user to my application using openid and using my blogspot account for that I get the following in my log file: Generated checkid_setup request to http://www.blogger.com/openid-server.g with assocication ... Redirected to http://www.blogger.com/openid-server.g?openid.assoc_handle=... NoMethodError (You have a nil object when you didn't expect it! The error occurred while evaluating nil.call): app/controllers/users_controller.rb:44:in `create' /usr/lib/ruby/1.8/webrick/httpserver.rb:104:in `service' /usr/lib/ruby/1.8/webrick/httpserver.rb:65:in `run' /usr/lib/ruby/1.8/webrick/server.rb:173:in `start_thread' /usr/lib/ruby/1.8/webrick/server.rb:162:in `start' /usr/lib/ruby/1.8/webrick/server.rb:162:in `start_thread' /usr/lib/ruby/1.8/webrick/server.rb:95:in `start' /usr/lib/ruby/1.8/webrick/server.rb:92:in `each' /usr/lib/ruby/1.8/webrick/server.rb:92:in `start' /usr/lib/ruby/1.8/webrick/server.rb:23:in `start' /usr/lib/ruby/1.8/webrick/server.rb:82:in `start' The code in the users_controller is straight forward: def create respond_to do |format| @user.save do |result| if result flash[:notice] = t('Thanks for signing up!') format.html { redirect_to :action => 'index' } format.xml { render :xml => @user, :status => :created, :location => @user } else format.html { render :action => "new" } format.xml { render :xml => @user.errors, :status => :unprocessable_entity } end end end end The line giving the error being @user.save do |result|... I feel I'm missing something pretty basic but I have been staring at this for too long because I can't find what it is. I checked with the code on Railscasts episodes 160 and 170 and the bones GitHub project but found nothing. Thanks for your help, usr

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  • How to get jQuery to work with Prototype

    - by thinkfuture
    Ok so here is the situation. Been pulling my hair out on this one. I'm a noob at this. Only been using rails for about 6 weeks. I'm using the standard setup package, and my code leverages prototype helpers heavily. Like I said, noob ;) So I'm trying to put in some jQuery effects, like PrettyPhoto. But what happens is that when the page is first loaded, PrettyPhoto works great. However, once someone uses a Prototype helper, like a link created with link_to_remote, Prettyphoto stops working. I've tried jRails, all of the fixes proposed on the JQuery site to stop conflicts... http://docs.jquery.com/Using_jQuery_with_Other_Libraries ...even done some crazy things likes renaming all of the $ in prototype.js to $$$ to no avail. Either the prototype helpers break, or jQuery breaks. Seems nothing I do can get these to work together. Any ideas? Here is part of my application.html.erb <%= javascript_include_tag 'application' %> <%= javascript_include_tag 'tooltip' %> <%= javascript_include_tag 'jquery' %> <%= javascript_include_tag 'jquery-ui' %> <%= javascript_include_tag "jquery.prettyPhoto" %> <%= javascript_include_tag 'prototype' %> <%= javascript_include_tag 'scriptalicious' %> </head> <body> <script type="text/javascript" charset="utf-8"> jQuery(document).ready( function() { jQuery("a[rel^='prettyPhoto']").prettyPhoto(); }); </script> If I put prototype before jquery, the prototype helpers don't work If I put the noconflict clause in, neither works. Thanks in advance! Chris BTW: when I try this, from the jQuery site: <script> jQuery.noConflict(); // Use jQuery via jQuery(...) jQuery(document).ready(function(){ jQuery("div").hide(); }); // Use Prototype with $(...), etc. $('someid').hide(); </script> my page disappears!

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  • DOM Elements with same id and jQuery

    - by Steve
    Hi I have multiple elements with the same structure in my application. Second div element's id varies as per the comment id in the db which is unique. There are elements with the id 'vote_up' and 'vote_down'. This gets repeated for each comment.What happens is that, as I mentioned, there are multiple comments. I want to perform an Ajax request. First of this structure functions properly using ajax, but the rest does an http request. Btw I am developing a rails application and I am using jQuery. <div id="post_comment"> john<i> says </i> Comment<br/> <div id="comment_10_div"> **<form action="/comments/vote_up" id="vote_up" method="post">** <div style="margin:0;padding:0;display:inline"> <input name="authenticity_token" type="hidden" value="w873BgYHLxQmadUalzMRUC+1ql4AtP3U7f78dT8x9ho=" /> </div> <input id="Comment_place_id" name="Comment[post_id]" type="hidden" value="3" /> <input id="Comment_id" name="Comment[id]" type="hidden" value="10" /> <input id="Comment_user_id" name="Comment[user_id]" type="hidden" value="2" /> <input name="commit" type="submit" value="Vote up" /> </form> <label id="comment_10">10</label> **<form action="/comments/vote_down" id="vote_down" method="post">** <div style="margin:0;padding:0;display:inline"> <input name="authenticity_token" type="hidden" value="w873BgYHLxQmadUalzMRUC+1ql4AtP3U7f78dT8x9ho=" /> </div> <input id="Comment_place_id" name="Comment[place_id]" type="hidden" value="3" /> <input id="Comment_id" name="Comment[id]" type="hidden" value="10" /> <input id="Comment_user_id" name="Comment[user_id]" type="hidden" value="2" /> <input name="commit" type="submit" value="Vote Down" /> </form> </div> Can you please help me to solve this Thanks

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  • Paperclip: delete attachment and "can't convert nil into String" error

    - by snitko
    I'm using Paperclip and here's what I do in the model to delete attachments: def before_save self.avatar = nil if @delete_avatar == 1.to_s end Works fine unless @delete_avatar flag is set when the user is actually uploading the image (so the model receives both params[:user][:avatar] and params[:user][:delete_avatar]. This results in the following error: TypeError: can't convert nil into String from /Work/project/src/vendor/plugins/paperclip/lib/paperclip/storage.rb:40:in `dirname' from /Work/project/src/vendor/plugins/paperclip/lib/paperclip/storage.rb:40:in `flush_writes' from /Work/project/src/vendor/plugins/paperclip/lib/paperclip/storage.rb:38:in `each' from /Work/project/src/vendor/plugins/paperclip/lib/paperclip/storage.rb:38:in `flush_writes' from /Work/project/src/vendor/plugins/paperclip/lib/paperclip/attachment.rb:144:in `save' from /Work/project/src/vendor/plugins/paperclip/lib/paperclip/attachment.rb:162:in `destroy' from /Work/project/src/app/models/user.rb:72:in `before_save' from /usr/lib/ruby/gems/1.8/gems/activerecord-2.3.5/lib/active_record/callbacks.rb:347:in `send' from /usr/lib/ruby/gems/1.8/gems/activerecord-2.3.5/lib/active_record/callbacks.rb:347:in `callback' from /usr/lib/ruby/gems/1.8/gems/activerecord-2.3.5/lib/active_record/callbacks.rb:249:in `create_or_update' from /usr/lib/ruby/gems/1.8/gems/activerecord-2.3.5/lib/active_record/base.rb:2538:in `save_without_validation' from /usr/lib/ruby/gems/1.8/gems/activerecord-2.3.5/lib/active_record/validations.rb:1078:in `save_without_dirty' from /usr/lib/ruby/gems/1.8/gems/activerecord-2.3.5/lib/active_record/dirty.rb:79:in `save_without_transactions' from /usr/lib/ruby/gems/1.8/gems/activerecord-2.3.5/lib/active_record/transactions.rb:229:in `send' from /usr/lib/ruby/gems/1.8/gems/activerecord-2.3.5/lib/active_record/transactions.rb:229:in `with_transaction_returning_status' from /usr/lib/ruby/gems/1.8/gems/activerecord-2.3.5/lib/active_record/connection_adapters/abstract/database_statements.rb:136:in `transaction' from /usr/lib/ruby/gems/1.8/gems/activerecord-2.3.5/lib/active_record/transactions.rb:182:in `transaction' from /usr/lib/ruby/gems/1.8/gems/activerecord-2.3.5/lib/active_record/transactions.rb:228:in `with_transaction_returning_status' from /usr/lib/ruby/gems/1.8/gems/activerecord-2.3.5/lib/active_record/transactions.rb:196:in `save' from /usr/lib/ruby/gems/1.8/gems/activerecord-2.3.5/lib/active_record/transactions.rb:208:in `rollback_active_record_state!' from /usr/lib/ruby/gems/1.8/gems/activerecord-2.3.5/lib/active_record/transactions.rb:196:in `save' from /usr/lib/ruby/gems/1.8/gems/activerecord-2.3.5/lib/active_record/base.rb:723:in `create' I assume it has something to do with the avatar.dirty? value because when it certainly is true when this happens. The question is, how do I totally reset the thing if there are changes to be saved and abort avatar upload when the flag is set?

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  • Remove a tag type from the view (involves alphabetical pagination)

    - by user284194
    I have an index view that lists all of the tags for my Entry and Message models. I would like to only show the tags for Entries in this view. I'm using acts-as-taggable-on. Tags Controller: def index @letter = params[:letter].blank? ? 'a' : params[:letter] @tagged_entries = Tagging.find_all_by_taggable_type('Entry').map(&:taggable) @title = "Tags" if params[:letter] == '#' @data = Tag.find(@tagged_entries, :conditions => ["name REGEXP ?", "^[^a-z]"], :order => 'name', :select => "id, name") else @data = Tag.find(@tagged_entries, :conditions => ["name LIKE ?", "#{params[:letter]}%"], :order => 'name', :select => "id, name") end respond_to do |format| flash[:notice] = 'We are currently in Beta. You may experience errors.' format.html end end tags#index: <% @data.each do |t| %> <div class="tag"><%= link_to t.name.titleize, tag_path(t) %></div> <% end %> I want to show only the taggable type 'Entry' in the view. Any ideas? Thank you for reading my question. SECOND EDIT: Tags Controller: def index @title = "Tags" @letter = params[:letter].blank? ? 'a' : params[:letter] @taggings = Tagging.find_all_by_taggable_type('Entry', :include => [:tag, :taggable]) @tags = @taggings.map(&:tag).sort_by(&:name).uniq @tagged_entries = @taggings.map(&:taggable)#.sort_by(&:id)#or whatever if params[:letter] == '#' @data = Tag.find(@tags, :conditions => ["name REGEXP ?", "^[^a-z]"], :order => 'name', :select => "id, name") else @data = Tag.find(@tags, :conditions => ["name LIKE ?", "#{params[:letter]}%"], :order => 'name', :select => "id, name") end respond_to do |format| format.html end end tags#index: <% @data.each do |t| %> <div class="tag"><%= link_to t.name.titleize, tag_path(t) %></div> <% end %> Max Williams' code works except when I click on my alphabetical pagination links. The error I'm getting [after I clicked on the G link of the alphabetical pagination] reads: Couldn't find all Tags with IDs (77,130,115,...) AND (name LIKE 'G%') (found 9 results, but was looking for 129) Can anyone point me in the right direction?

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