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  • Google Maps API with Rails 3.0

    - by JZ
    I'm wondering if anyone out there has worked with Google Maps API with Rails 3. I'm looking for launching ideas, gems, plugins etc. I played around with ym4r-gm plugin for several hours today, with not much luck. Have you played with this API on rails 3 yet? Thanks in advance!

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  • Is it easy to switch from relational to non-relational databases with Rails?

    - by Tam
    Good day, I have been using Rails/Mysql for the past while but I have been hearing about Cassandra, MongoDB, CouchDB and other document-store DB/Non-relational databases. I'm planning to explore them later as they might be better alternative for scalability. I'm planning to start an application soon. Will it make a different with Rails design if I move from relational to non-relational database? I know Rails migrations are database-agnostic but wasn't sure if moving to non-relational will make difference with design or not.

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  • Convert array of hashes to array of structs?

    - by keruilin
    Let's say I have two objects: User and Race. User has two attributes: first_name, last_name. And Race has three attributes: course, start_time, end_time. Now let's say I create an array of hashes like this: user_races = races.map{ |race| {:user = race.user, :race = race} } How do I then convert user_races into an array of structs, keeping in mind that I want to be able to access the attributes of both user and race from the struct element?

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  • What is best strategy to handle exceptions & errors in Rails?

    - by Nick Gorbikoff
    Hello. I was wondering if people would share their best practices / strategies on handling exceptions & errors. Now I'm not asking when to throw an exception ( it has been throroughly answered here: SO: When to throw and Exception) . And I'm not using this for my application flow - but there are legitimate exceptions that happen all the time. For example the most popular one would be ActiveRecordNotFound. What would be the best way to handle it? The DRY way? Right now I'm doing a lot of checking within my controller so if Post.find(5) returns Nil - I check for that and throw a flash message. However while this is very granular - it's a bit cumbersome in a sense that I need to check for exceptions like that in every controller, while most of them are essentially the same and have to do with record not found or related records not found - such as either Post.find(5) not found or if you are trying to display comments related to post that doesn't exist, that would throw an exception (something like Post.find(5).comments[0].created_at) I know you can do something like this in ApplicationController and overwrite it later in a particular controller/method to get more granular support, however would that be a proper way to do it? class ApplicationController < ActionController::Base rescue_from ActiveRecord::RecordInvalid do |exception| render :action => (exception.record.new_record? ? :new : :edit) end end

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  • Rails polymorphic associations, two assoc types in one class

    - by snitko
    Consider a class: class Link < ActiveRecord::Base has_many :link_votes, :as => :vote_subject, :class_name => 'Vote' has_many :spam_votes, :as => :vote_subject, :class_name => 'Vote' end The problem is, when I'm adding a new vote with @link.link_votes << Vote.new the vote_subject_type is 'Link', while I wish it could be 'link_votes' or something like that. Is this an AR limitation or is there a way to workaround this thing? I've actually found one related answer, but I'm not quite sure about what it says: http://stackoverflow.com/questions/1168047/polymorphic-association-with-multiple-associations-on-the-same-model/1764117#1764117

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  • Form is submitting when the page loads

    - by RailAddict
    I have a really simple Rails app. Basically an article with comments. I want the article page to show the article, comments underneath and then a textbox to write a comment and a submit button to submit it. I got it all working except for one (big) problem. When the page loads.. example.com/article/1 a blank comment is submitted to the database. I fixed that by including "validates_presence_of :body" in the Comment model. But that results in the following image when the page loads: This is my code by the way: def show @place = Article.find(params[:id]) @comment = Article.find(params[:id]).comments.create(params[:comment]) respond_to do |format| format.html # show.html.erb format.xml { render :xml => @article } end end and <% form_for([@article, @comment]) do |f| %> <p> <%= f.label :commenter %><br /> <%= f.text_field :commenter %> </p> <p> <%= f.label :body %><br /> <%= f.text_area :body %> </p> <p> <%= f.submit "Create" %> </p> <% end %>

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  • Getting "undefined method" error on form select in cucumber

    - by zlog
    I'm trying to visit a page with cucumber, with: visit new_video_path but I get this error: undefined method `episode_id' for #<Video:0x22df8dc> (ActionView::TemplateError) On line #19 of app/views/videos/_form.html.erb ... 19: <%= select(:video, :episode_id, @episodes.collect {|e| [ e.title, e.id ] }, { :include_blank => true }) %> It loads fine in the browser, and the form processes fine too. What did I do wrong?

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  • What does this rake db:seed error mean?

    - by Kenji Kina
    I've been trying to solve this problem for a couple of hours but I can't seem to understand what's going on. I'm using Rails 3 beta, and want to seed some data to the database. However, when I try to seed some values through db:seed, I get this error: rake aborted! Attribute(#81402440) expected, got Array(#69024170) The seeds.rb is: DataType.delete_all DataType.create( :name => 'String' ) And I got these classes: class DataType < ActiveRecord::Base has_many :attributes end class Attribute < ActiveRecord::Base belongs_to :data_types end While the migration definition for DataType is merely: class CreateDataTypes < ActiveRecord::Migration def self.up create_table :data_types do |t| t.string :name t.timestamps end end def self.down drop_table :data_types end end Can anyone tell me what I'm doing wrong?

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  • Appending HTML to end of body using javascript

    - by ming yeow
    here is the deal. i have several templates for faceboxes (lightbox) i need at different points of the application. these are stored in different partials and files. i will initialize different javascript functions in accordance to which ones i need. The question is, what is the best way to append the external HTML page into my body using javascript?

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  • Big sinatra problems

    - by Joel M.
    Hi, So I'm having huge trouble with sinatra. Here's what I have: require 'dm-core' DataMapper.setup(:default, ENV['DATABASE_URL'] || 'sqlite3://my.db') class Something include DataMapper::Resource property :id, Serial property :thing, Text property :run_in, Integer property :added_at, DateTime property :to, String def schedule cronify(self.thing+" to "+self.to, "http://url"+self.id.to_s, self.run_in) end def notify text(self.thing, self.to) end end Something.auto_upgrade! The cronify method works. I tested it in irb. Also, the schedule instance method works, I tested it in the console. However, it doesn't work in the route, even though it works in the console. post '/add' do @something = Something.create(blah) #this works fine @something.schedule #this works fine in the console; not in the route. end I've tried everything, from @something.create(blah).schedule (which also works fine in the console, but not in the route), to defining the method cronify inside the sinatra helpers, and even calling cronify directly on the route. Nothing works on the route. What am I doing wrong?

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  • Does Shoes have a list view control?

    - by Jim
    I was taking a look at Shoes which seems like a very nice tool for quick GUI applications. The common elements/controls, however, don't seem to include the equivalent of a list/report view (e.g., ListView in Windows, NSTableView in OS X). Did I just miss this, or does it not (yet) exist?

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  • How to solve rake tasks deprecation on the rails plugin?

    - by Dida
    Because of the concept introduced in here, Rails::Plugin is nothing more than a Rails::Engine, but since it's loaded too late in the boot process, it does not have the same configuration powers as a bare Rails::Engine. Opposite to Rails::Railtie and Rails::Engine, you are not supposed to inherit from Rails::Plugin. Rails::Plugin is automatically configured to be an engine by simply placing inside vendor/plugins. Since this is done automatically, you actually cannot declare a Rails::Engine inside your Plugin, otherwise it would cause the same files to be loaded twice. This means that if you want to ship an Engine as gem it cannot be used as plugin and vice-versa. Besides this conceptual difference, the only difference between Rails::Engine and Rails::Plugin is that plugins automatically load the file "init.rb" at the plugin root during the boot process. rake tasks in the rails plugins are deprecated and it is advised to use lib/tasks instead. How to solve this? Can I just simply move the plugin's tasks to the lib/tasks?

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  • if_attribute on declarative authorization. STUCK FOR DAYS!!!

    - by Victor Martins
    I can't seem to find a solution for this problem :s I have a many to many relationship like this: A user has_many organizations through affiliations and vice versa. I'm using declarative organizations and I only want a user to edit a particular organization if he is affiliated and the affiliationtype attribute of affiliation is a particular value. So affiliations has 3 columns , user_id, organization_id and affiliationtype_id I can do: o = Organization.find(:first) o.affiliatons[0].user and get the user now I wish to do this: has_permission_on [:organizations], :to => :edit do if_attribute (...) end That if_attribute should see if the current user is the organization.affiliation[?].user and if the organization.affiliation[?].affiliationtype_id = "3" I hope this is syntax issue ... I really need to get this working. Thanks in advance.

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  • #validate does not seem to work correctly with :on => :create/:update

    - by Tobias
    Greetings, I have a custom validation in my exemplary Movie model: class Movie < ActiveRecord::Base validate :it, :on => :create private def it self.errors.add 'foo', 'bar' end end This works on movie creation but also on updating an existing movie. :on => :update will also work for both. Might that be a bug or am I missing something? Best regards Tobias

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  • Why do you have to explicitly specify scope with friendly_id?

    - by nfm
    I'm using the friendly_id gem. I also have my routes nested: # config/routes.rb map.resources :users do |user| user.resources :events end So I have URLs like /users/nfm/events/birthday-2009. In my models, I want the event title to be scoped to the username, so that both nfm and mrmagoo can have events birthday-2009 without them being slugged. # app/models/event.rb def Event < ActiveRecord::Base has_friendly_id :title, :use_slug => true, :scope => :user belongs_to :user ... end I'm also using has_friendly_id :username in my User model. However, in my controller, I'm only pulling out events pertinent to the user who is logged in (current_user): def EventsController < ApplicationController def show @event = current_user.events.find(params[:id]) end ... end This doesn't work; I get the error ActiveRecord::RecordNotFound; expected scope but got none. # This works @event = current_user.events.find(params[:id], :scope => 'nfm') # This doesn't work, even though User has_friendly_id, so current_user.to_param _should_ return "nfm" @event = current_user.events.find(params[:id], :scope => current_user) # But this does work! @event = current_user.events.find(params[:id], :scope => current_user.to_param) SO, why do I need to explicitly specify :scope if I'm restricting it to current_user.events anyway? And why does current_user.to_param need to be called explicitly? Can I override this?

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  • Bluehost internal server error

    - by Aditya
    Hello everyone, When i am creating the setup of my rails application on bluehost,it throw following error:- Internal Server Error The server encountered an internal error or misconfiguration and was unable to complete your request. Please contact the server administrator, [email protected] and inform them of the time the error occurred, and anything you might have done that may have caused the error. More information about this error may be available in the server error log. Additionally, a 500 Internal Server Error error was encountered while trying to use an ErrorDocument to handle the request. Apache/2.2.14 (Unix) mod_ssl/2.2.14 OpenSSL/0.9.8l DAV/2 mod_auth_passthrough/2.1 FrontPage/5.0.2.2635 Server at team.cipher-tech.com Port 80 Please help me.It's urgent. Thanks in advance..

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  • Sinatra Variable Scope

    - by Ethan Turkeltaub
    Take the following code: ### Dependencies require 'rubygems' require 'sinatra' require 'datamapper' ### Configuration config = YAML::load(File.read('config.yml')) name = config['config']['name'] description = config['config']['description'] username = config['config']['username'] password = config['config']['password'] theme = config['config']['theme'] set :public, 'views/themes/#{theme}/static' ### Models DataMapper.setup(:default, "sqlite3://#{Dir.pwd}/marvin.db") class Post include DataMapper::Resource property :id, Serial property :name, String property :body, Text property :created_at, DateTime property :slug, String end class Page include DataMapper::Resource property :id, Serial property :name, String property :body, Text property :slug, String end DataMapper.auto_migrate! ### Controllers get '/' do @posts = Post.get(:order => [ :id_desc ]) haml :"themes/#{theme}/index" end get '/:year/:month/:day/:slug' do year = params[:year] month = params[:month] day = params[:day] slug = params[:slug] haml :"themes/#{theme}/post.haml" end get '/:slug' do haml :"themes/#{theme}/page.haml" end get '/admin' do haml :"admin/index.haml" end I want to make name, and all those variables available to the entire script, as well as the views. I tried making them global variables, but no dice.

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  • Regex issue with comma's telling me there are 6 args, instead of intended 4

    - by Azher
    I have a scenario outline table that looks like the following: Scenario Outline: Verify Full ad details Given I am on the xxx classified home page And I have entered <headline> in the search field & clicked on search When I click on full details Then I should see <headline> <year> <mileage> <price> displaying correctly and successfully Examples: |headline |year |mileage |price | |alfa romeo 166 |2005 |73,000 |6,990 | When I run my scenario it spits out that I have 6 args. But what I thought, I should only have 4 args: headline, year, mileage and price. I am thinking that it is taking the comma's and what is before and after it as two seperate args. Is there any way that I can make cucumber think that there are only 4 args with the example below? I have looked at messing around with regex but I dont seem to be getting anywhere. Any help would be greatly appreciated.

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  • Rails prettyPhoto does not show photo with jquery (instead redirect to photo page)

    - by dare
    i do all instruction for use prettyPhoto in https://github.com/hiq5/prettyphoto-rails. and i do this to show a single photo( not gallery ) =link_to image_tag(photo.photo_url(:thumb).to_s, :alt => photo.name ,:class => "img-polaroid"), photo.photo_url, :rel => 'prettyPhoto' but still redirect to photo url and show photo, and doesn't use jQuery to show it on the current page. i check it with chrome development tools, there isn't any error. i use haml to generate views (instead erb), and carrierwave to upload photos. by the way I use twitter bootstrap. any help is appreciated.

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  • Paperclip - Stream not recognized by identify command

    - by user117046
    I'm getting a paperclip error every time that I upload an image: [paperclip] An error was received while processing: #<Paperclip::NotIdentifiedByImageMagickError: /tmp/stream20100531-1921-uvlewk-0 is not recognized by the 'identify' command.> I'm running: Ubuntu 10.04, Imagemagick 6.5.1-0 (via apt-get), Paperclip 3.2.1.1 My path to identify is 'usr/bin/identify' and have confirmed Imagemagick works via command line I've tried putting adding the path to the options, but to no avail. I've tried: Paperclip.options[:command_path] = "usr/bin" or Paperclip.options.merge!(:command_path => "/usr/bin") in environment.rb or config/initializers/paperclip.rb. Though it makes no rational sense, I also tried "usr/local/bin" since this is the default for most people. Any thoughts on getting around this? Thanks!

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