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• Creating an admin user in Devise on Rails beta 3

  - by erskingardner

  Ok, I'm probably going to feel quite dumb when someone answers this one with a simple thing that I'm missing but... here goes: I've got a brand new app on rails 3 beta and I'm using devise for the authentication. I've run all the comments and everything is working perfectly at the moment. I've created a user role and an admin role (following these instructions: http://wiki.github.com/plataformatec/devise/adding-an-admin-role) and I've registered myself as the first user but how to do I register or create an admin role user? The directions from the devise guys setup the admin role to not be registerable but I'm unsure how you're supposed to create the admin if you can't register?! Any help would be appreciated! Thanks!

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• Main pricing and support for individual client pricing (Database Architecture ideas help - Rails)

  - by slythic

  Hi all, I have a personal project I'm planning and I came to a small hurdle. I want to have an item with price that will be the default for all clients/users. However, in my business I have some clients that are grandfathered in to some special pricing. In the case of these grandfathered in cases, I'll manually plug their special price in my admin section. Then all they will see is their special pricing while the regular users/clients see the default price. What is the best and simplest way to design the back-end for this? FYI - I'll be using rails as my framework. Many thanks! -Tony

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• Email Verification plugin for rails?

  - by Larry K

  Hi, I'd like to verify a user's email address by sending them a verify-email-message. Do you know of a good Rails plugin that they've used or seen? Since I didn't see anything good via Google, at this point, my thought is: Add a verified boolean field to the user model. Default false. After user is added (unverified), combine email with a salt (a secret), and create the sha1 hash of the email/salt combo. The result is the verification. Send a welcoming / verification email to the user. Email includes a url that has the email address and verification as GET args to a verify action on my server. The verify action recomputes the verification using the supplied email and checks that the new verification matches the one in the url. If it does, then the User rec for the email is marked 'verified' Also will provide action to re-send the verification email. Any comments on the above? Thanks, Larry

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• Main pricing and support for custom client pricing (Database Architecture ideas help - Rails)

  - by slythic

  Hi all, I have a personal project I'm planning and I came to a small hurdle. I want to have an item with price that will be the default for all clients/users. However, in my business I have some clients that are grandfathered in to some special pricing. In the case of these grandfathered in cases, I'll manually plug their special price in my admin section. Then all they will see is their special pricing while the regular users/clients see the default price. What is the best and simplest way to design the back-end for this? FYI - I'll be using rails as my framework. Many thanks! -Tony

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• Getting session authenticity token via ajax (rails, jquery)

  - by ming yeow

  Hi folks, I wish to authenticate a user without having the page reloaded, and having the user submit a given form. However, the problem that I immediately run into here is that the authenticity token typically gets set when the page is reloaded. I need the authenticity token for the form submission, but i do not have it yet because the page is yet to reload. I figure this cannot be that rare - anyone has any idea on how to resolve this? 1 idea could be getting rails to pass back the authenticity token after authentication, but i do not know how to access it from the controller 1) not logined user sees form 2) not logined user types in message and submit 3) facebox asking for authentication 4) after authentication, submit form automatically without refreshing 5) //but authenticity token is needed for form submission, which is not there yet

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• Send failed from rails server to download in the browser

  - by Markus

  Hi everybody, I have a web application which has some multimedia files stored in a user protected area. To make this files available to logged in customers, I consider using the x-sendfile plugin. x_send_file(path, :type => 'application/pdf') It is just strange that every time I run this function a empty file gets sent to the browser download. I checked the path which is correct (app fails if I change it to a inexistent file). Actually if I use the rails internal send_file method, the same error occurs... Any help is appreciated! Markus

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• javascript form validation in rails?

  - by Elliot

  Hey guys, I was wondering how to go about form validation in rails. Specifically, here is what I'm trying to do: The form lets the user select an item from a drop down menu, and then enter a number along with it. Using RJS, the record instantly shows up in a table below the form. Resetting the form with AJAX isn't a problem. The issue is, I don't want the person to be able to select the same item from that drop down menu twice (in 1 day at least). Without using ajax, this isn't a problem (as I have a function for the select statement currently), but now that the page isn't reloading, I need a way to make sure people cant add the same item twice in one day. That said, is there a way to use some javascript/ajax validation to make sure the same record hasn't been submitted during that day, before a duplicate can be created? Thanks in advance! Elliot

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• Rails request forgery protection settings

  - by Vitaly

  Hey, please help a newbie in Rails :) I have protect_from_forgery call (which is given by default) with no attributes in my ApplicationController class. Basically here's the code: class ApplicationController < ActionController::Base helper :all # include all helpers, all the time protect_from_forgery helper_method :current_user_session, :current_user filter_parameter_logging :password, :password_confirmation What I assume it should do is: it should prevent any POST requests without correct authenticity_token. But when I send post request with jQuery like the one below, it works fine (there's update statement that is executed in the database)! $.post($(this).attr("href"), { _method: "PUT", data: { test: true } }); I see in console that there's no authenticity_token among sent parameters, but request is still considered valid. Why is that?

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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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• Rails choking on the content of this request because of protect_from_forgery

  - by randombits

  I'm trying to simply test my RESTful API with cURL. Using the following invocation: curl -d "name=jimmy" -H "Content-Type: application/x-www-form-urlencoded" http://127.0.0.1:3000/people.xml -i Rails is dying though: ActionController::InvalidAuthenticityToken (ActionController::InvalidAuthenticityToken): :8:in `synchronize' Looks like it's running this through a protect_from_forgery filter. I thought protect_from_forgery is excluded for non-HTML HTTP POST/PUT/DELETE type requests? This is clearly targeting the XML format. If I pass actual XML content, it works. But my users will be submitting POST data as URL encoded parameters. I know all the various ways I can disable protect_from_forgery but what's the proper way of handling this? I want to leave it on so that when I do have HTML based forms and handle format.html, I don't forget to re-enable it for then. I want users to be able to make HTTP POST requests to my XML-based API though and not get bombarded with this.

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• Rails fails to return scripts/stylesheets

  - by Lowgain

  This only happens on my local machine (Windows 7, Ruby 1.8.7). Occasionally rails will just stop returning my stylesheets/javascript and I'll get gross looking pages. If I navigate directly to those scripts, sometimes they work, and sometimes I get errors like: private method `gsub!' called for #<Class:0x76ff830> What could be causing this? It is usually more a nuisance than anything because of lack of styles, but when I'm trying to test out my javascript it becomes an issue. Thanks!

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• Ruby on Rails: How to verify haml files syntax within rails project?

  - by Acidburn2k

  I've installed HAML into my project and it is working like a charm - the templates are beeing rendered without a problem. My question is how can I do the rendering on the command line, by using HAML program. That would be super for debugging purposes, meantime while I try to compile HAML file I get the error on first Rails related Ruby code to be found: % cat app/views/dashboard/index.html.haml - title "Home" %p Lorem ipsum dolor sit amet... % haml app/views/dashboard/index.html.haml Exception on line 1: undefined method `title' for #<Object:0xb73283b0> Use --trace for backtrace. Page is rendered fine returned correctly through the webserver.

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• How do I start IRB console from a rake task?

  - by Michael Lang

  I'm trying to write a rake task that will set up an environment mirroring my project. task :environment do require 'rubygems' require 'sequel' # require 'my_projects_special_files' end task :foo => [:environment] do require 'irb' IRB.start end Leads to irb complaining that "foo" doesn't exist (the name of the task) 10:28:01:irb_test rake foo --trace (in /Users/mwlang/projects/personal/rake/irb_test) ** Invoke foo (first_time) ** Invoke environment (first_time) ** Execute environment ** Execute foo rake aborted! No such file or directory - foo /opt/local/lib/ruby/1.8/irb/input-method.rb:68:in `initialize' /opt/local/lib/ruby/1.8/irb/input-method.rb:68:in `open' /opt/local/lib/ruby/1.8/irb/input-method.rb:68:in `initialize' /opt/local/lib/ruby/1.8/irb/context.rb:80:in `new' /opt/local/lib/ruby/1.8/irb/context.rb:80:in `initialize' /opt/local/lib/ruby/1.8/irb.rb:92:in `new' /opt/local/lib/ruby/1.8/irb.rb:92:in `initialize' /opt/local/lib/ruby/1.8/irb.rb:57:in `new' /opt/local/lib/ruby/1.8/irb.rb:57:in `start' /Users/mwlang/projects/personal/rake/irb_test/Rakefile:9

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• using Control.tabs for prototype.js in Rails

  - by Elliot

  Hey everyone, I've been trying to use http://livepipe.net/control/tabs to get some javascript tabs up and running on my rails up. I'm really just trying to figure out how to install this... and I don't see how I'm running into any issues at all. Here are the steps I've taken: put tabs.js in my scripts folder made sure the layout is including all javascript files then I copied in the code for example 1, as well as the CSS from the page's style sheet. I don't get an error, but it just doesn't work. Both tabs are displayed... Any ideas?

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• Connect rails application to MsSQL 2005 from Windows

  - by Enrico Carlesso

  Hi guys. I (sadly) have to deploy a rails application on Windows XP which has to connect to Microsoft SQL Server 2005. Surfing in the web there are a lot of hits for connect from Linux to MsSQL, but cannot find out how to do it from Windows. Basically I followed these steps: Install dbi gem Install activerecord-sql-server-adapter gem My database.yml now looks like this: development: adapter: sqlserver mode: odbc dsn: test_dj host: HOSTNAME\SQLEXPRESS database: test_dj username: guest password: guest But I'm unable to connect it. When I run rake db:migrate I get IM002 (0) [Microsoft][ODBC Driver Manager] Data source name not found and no default driver specified I'm not a Windows user, so cannot understand really well the meaning of dsn element or so. Does someone have an idea how to solve this? Thanks in advance

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• rails foobar_path(3) returnes strange path: "/foobar.3/" instead of "/foobar/3/

  - by Dominik

  Hi i have this starnge behavoir... <%= link_to image_tag("image.png"), foobar_path(1), :method => "put" %> produces: <a href="/brain.1" onclick="var f = document.createElement('form'); f.style.display = 'none'; this.parentNode.appendChild(f); f.met ...[many rails code]... ;return false;"><img alt="Research_4" src="/images/image.png" /></a> a href="/foobar.1" this is the strange part :( any ideas whqt is causing this?

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• Rspec-rails doesn't seem to find my models

  - by sa125

  Hi - I'm trying out rspec, and immediately hit a wall when it doesn't seem to load db records I know exist. Here's my fairly simple spec (no tests yet). require File.expand_path(File.dirname(__FILE__) + '../spec_helper') describe SomeModel do before :each do @user1 = User.find(1) @user2 = User.find(2) end it "should do something fancy" end I get an ActiveRecord::RecordNotFound exception, saying it couldn't find User w/ ID=1 or ID=2, which I know for a fact exist. I set both test and development databases to point to the same schema in database.yml, so this shouldn't be database mixup. I also ran script/generate rspec after installing the gems (rspec, rspec-rails), and gem.config both environment.rb and test.rb. Any idea what I'm missing? thanks. EDIT Seems I was running the tests with rake spec:models, which emptied the db and thus no records were found. When I used % spec spec/models/some_model_spec.rb, everything worked as expected.

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• Pasting images in TinyMCE on rails app

  - by Sam Kong

  Hi, I found a weird problem with TinyMCE editor. Copying & pasting images from another domain works fine but if the images are on the same domain the path are relative but not correct sometimes. I figured out that the problem is related to the rails URL scheme. Example) Images are copied from http://mydomain.com/index.html page and the real images path is http://mydomain.com/photos/image.jpg. Editor page: http://mydomain.com/posts/new = image path is set as ../photos/image.jpg http://mydomain.com/posts/edit/123 = image path is set as ../../photos/image.jpg So I tried http://mydomain.com/posts/new/ and it worked. How do I solve this problem? Thanks. Sam

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• How to implement a Counter Cache in Rails?

  - by yuval

  I have a posts controller and a comments controller. Post has many comments, and comments belong to Post. The associate is set up with the counter_cache option turned on as such: #Inside post.rb has_many :comments #Inside comment.rb belongs_to :post, :counter_cache => true I have a comments_count column in my posts table that is defaulted to zero, as such: add_column :posts, :comments_count, :integer, :default => 0 In the create action of my comments controller, I have the following code: def create @posts = Post.find(params[:post_id]) @comment = @post.comments.build(params[:comment]) if @comment.save redirect_to root else render :action => 'new' end end My problem: when @comment.save is called, I get the following error: ArgumentError in CommentsController#create wrong number of arguments (2 for 0) Removing :counter_cache => true from comment.rb completely solves the problem, so I'm assuming that it is the cause of this vague error. What am I missing here? How can I save my comment and still have rails take care of my counter_cache for my post? Thanks!

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• Rails: blank page - no errors or stack trace

  - by Nathan Long

  I've been trying to fix a bug in the Rails app I'm developing, and I keep getting a blank screen with no errors. I haven't found anything helpful in development.log, either (though it does show queries being run and such). Finally, I started to wonder if it's somehow set not to show errors anymore. I tried commenting out a necessary route, and sure enough, I got a blank page instead of the error and stack trace I expected. What might cause this? (I wondered if maybe I'm accidentally running production mode and errors aren't supposed to show then, but development.log is being appended, and if I open script/console and echo ENV['RAILS_ENV'], it says development.)

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• Rails: ValidationReflection and Formtastic not working together

  - by user336777

  I installed validation_reflection as a gem and out of the box it picked up on my validates_presence_of validations. But it is not picking up on any of the other default rails validations such as validates_format_of. I know from the documentation that i am supposed to add something like: config.reflected_validations << :validates_format_of to my config/plugins/validation_reflection.rb file (which didn't exist initially). I did this but nothing changed (i restarted the web server in between). I am not sure if it just isn't picking up on my file and loading validation_reflection.rb or if i have done something wrong. Anyone have any insights?

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• How to cache queries in Rails across multiple requests

  - by m.u.sheikh

  I want to cache query results so that the same results are fetched "for more than one request" till i invalidate the cache. For instance, I want to render a sidebar which has all the pages of a book, much like the index of a book. As i want to show it on every page of the book, I have to load it on every request. I can cache the rendered sidebar index using action caching, but i also want to actually cache the the query results which are used to generate the html for the sidebar. Does Rails provide a way to do it? How can i do it?

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• Achieve Rails-style migrations in MS Access VBA application

  - by avguchenko

  This is a simple way to do Rails-style migrations in a VBA application. Just add additional migrations like migration(name, sql_string, database) to run_migratons and call run_migrations somewhere in the beginning of your execution. Function migrate(signature As String, sql As String, dbs As DAO.database) Dim rs As DAO.Recordset Set rs = dbs.OpenRecordset("select * from versions where migration = '" & signature & "'") If rs.EOF Then dbs.Execute (sql) rs.AddNew rs("migration") = signature rs.Update End If End Function Function setup_versions(dbs As DAO.database) Dim t As DAO.TableDef On Error Resume Next Set t = dbs.TableDefs("versions") If Err.Number <> 0 Then dbs.Execute ("CREATE TABLE versions (migration text)") End If Err.Clear End Function Function run_migrations(dbs As DAO.database) setup_versions(dbs) migrate("20100315142400_create_table", "CREATE TABLE table_name (field1 type, field 2 type)", dbs) 'add migrations here' End Function

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• rails: include statement with two ON conditions

  - by Markus

  Hi, I have tree tables books bookmarks users where there is a n to m relation from books to users trough bookmarks. Im looking for a query, where I get all the books of a certain user including the bookmarks. If no bookmarks are there, there should be a null included... my sql statement looks like: SELECT * FROM `books` LEFT OUTER JOIN `bookmarks ` ON bookmarks.book_id = books.id AND bookmarks.user_id = ? In rails I only know the :include statement, but how can I add the second bookmarks.user_id = ? statement in the ON section of this query? if I put it in the :conditions part, no null results would get returned! Thanks! Markus

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• Supporting different locale regions using Rails i18n

  - by Olly

  I'm using the standard Rails I18n API to localise some of our views. This is working really well, but we now have a few use cases for regional changes to the en locale. The API guide mentions that this isn't supported directly, and other plugins should be used. However, I'm wondering whether there's a simpler way to do this. I already have en.yml, so in theory I could just create en-AU.yml and en-US.yml which are effectively clones of en.yml but with a few regional changes applied. I could then add additional English - American and English - Australian options to our configuration which would map to the new region-specific locales and allow users to use a region-specific locale. The only problem I can think of with this is that it isn't DRY -- I would have duplicate translations for all common English words. I can't see a way around this. Are there any other disadvantages to this approach, or should I just bite the bullet and dive into one of the plug-ins such as Globalize2 instead?

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