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  • how to read a User uploaded file, without saving it to the database

    - by GoodGets
    I'd like to be able to read an XML file uploaded by the user (less than 100kb), but not have to first save that file to the database. I don't need that file past the current action (its contents get parsed and added to the database; however, parsing the file is not the problem). Since local files can be read with: File.read("export.opml") I thought about just creating a file_field for :uploaded_file, then trying to read it with File.read(params[:uploaded_file]) but all that does is throw a TypeError (can't convert HashWithIndifferentAccess into String). I really have tried a lot of various things (including reading from the /tmp directory as well), but could get none of them to work. I hope the brevity of my question doesn't mask the effort I've given to try to solve this on my own, but I didn't want to pollute this question with a hundred ways of how NOT to get it done. Big thanks to anyone who chimes in.

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  • collaborative filtering in rails

    - by holden
    I'm looking for a solution for collaborative filtering in rails or even possible examples. So far I have only found acts_as_recommendable which looks useful but I noticed it hasn't had any updates in the last 2 years. Does anyone know of any other solutions and/or examples?

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  • help with rails render action vs routing

    - by Stacia
    I was using some image cropping example that I found online and now I got confused. There is actually no "crop" method in my controller. Instead (following the guide) I put a render :action => 'cropping', :layout=> "admin" In my create method. That renders a page the view called cropping.html.erb . It works fine but I have no idea how to link or render that page otherwise, like if I wanted to hit a URL directly or press a button to recrop an image. Should I actually create a crop method in my controller and hook it up via routing if I want to be able to do this, or is there a way within my view to link to the same place that renders the cropping action? Sorry about the confusion :) It doesn't help that the first version of the tutorial did have a cropping method and he removed it!! Any explanation on why one method is better over the other would be great. Thanks!!

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  • define javascript functions on iframe facebook app inside <fb:serverfbml> tag

    - by user233486
    Hi all, How we can define JS function on inside ? I tried to load file javascript on the end tag , but I still can't call the function from javascript file. Here the FBML tag <fb:serverfbml> <script type="text/fbml"> <fb:fbml> <a href="#" id="this" onclick="do_colors(this); return false">Hello World!</a> <script src="http://absolute.path.to/your/javascript/file.js"></script> </fb:fbml> </script> </fb:serverfbml> And here the javacript function on file.js function random_int(lo, hi) { return Math.floor((Math.random() * (hi - lo)) + lo) } function do_colors(obj) { var r = random_int(0, 255), b = random_int(0, 255), g = random_int(0, 255); obj.setStyle({background: 'rgb('+[r, g, b].join(',')+')', color: 'rgb('+[r<128?r+128:r-128, g<128?g+128:g-128, b<128?b+128:b-128].join(',')+')'}); } I use rails and facebooker to develop the application Any idea or suggestion for define javascript functions? Thanks,

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  • Authlogic Current User Question - hiding admin links...

    - by bgadoci
    I think I am missing something while using the Authlogic gem w/ Rails. To set the stage I have multiple users and each user can create posts and comments. Upon the display of a post or comment I would like to give the user who created them the option to edit or destroy. I am successfully using the following code to hide and show elements based on if a user is logged in or not but can't seem to find out how to only show these links to the actual user who created them...not any user that is logged in. <% if current_user %> <%= link_to 'Edit', edit_question_path(question) %> | <%= link_to 'Destroy', question, :confirm => 'Are you sure?', :method => :delete %> <% else %> <p>nothing to see here</p> <% end %> Here is the def of current_user located in the application controller in case I need to change something here. class ApplicationController < ActionController::Base helper :all # include all helpers, all the time protect_from_forgery # See ActionController::RequestForgeryProtection for details# helper_method :current_user private def current_user_session return @current_user_session if defined?(@current_user_session) @current_user_session = UserSession.find end def current_user return @current_user if defined?(@current_user) @current_user = current_user_session && current_user_session.record end end

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  • ActionMailer sent with body unavailable in view

    - by yelvert
    So ive got a ActionMailer mailer class ReportMailer < ActionMailer::Base def notify_doctor_of_updated_document(document) recipients document.user.email_id from "(removed for privacy)" subject "Document #{document.document_number} has been updated and saved as #{document.status}" sent_on Time.now body :document => document end end and the view is Document <%= @document.class %> but when running >> d = Document.last => #<Document id: "fff52d70-7ba2-11de-9b70-001ec9e252ed", document_number: "ABCD1234", procedures_count: 0, user_id: "630", created_at: "2009-07-28 18:18:07", updated_at: "2009-08-30 20:59:41", active: false, facility_id: 94157, status: "incomplete", staff_id: nil, transcriptionist_id: nil, job_length: nil, work_type: nil, transcription_date: nil, non_trans_edit_date: nil, pervasync_flag: true, old_id: nil> >> ReportMailer.deliver_notify_doctor_of_updated_document(d) => #<TMail::Mail port=#<TMail::StringPort:id=0x8185326c> bodyport=#<TMail::StringPort:id=0x8184d6b4>> from the console this is printed in the log Sent mail to (removed for privacy) Date: Tue, 11 May 2010 20:45:14 -0500 From: (removed for privacy) To: (removed for privacy) Subject: Document ABCD1234 has been updated and saved as incomplete Mime-Version: 1.0 Content-Type: multipart/alternative; boundary=mimepart_4bea082ab4ae8_aa4800b81ac13f5 --mimepart_4bea082ab4ae8_aa4800b81ac13f5 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: Quoted-printable Content-Disposition: inline Document NilClass= --mimepart_4bea082ab4ae8_aa4800b81ac13f5--

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  • How do I impersonate a user with AuthLogic

    - by Sam Saffron
    I need to be able to create a UserSession without having the decrypted password. How do I go about doing this? My current workaround is: In user.rb def valid_crypted_or_non_crypted_password?(password) valid_password?(password) || password == crypted_password end In user_session.rb verify_password_method :valid_crypted_or_non_crypted_password? To login UserSession.create(:login => u.login, :password => u.crypted_password) Is there a nicer way to do this?

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  • Rails - Multiple top level domains and a single session/cookie

    - by Thadius B
    Hello all, I've been struggling with this for quite awhile and haven't been able to find a solution. I need a user to be able to view multiple top level domains with a single login. My understanding is that this needs to be set in environment.rb and called with before_dispatch. This is what I've come up with: require 'activesupport' require 'dispatcher' module ActionController class Dispatcher def set_session_domain ActionController::Base.session_options.update :session_domain => "#{@request.host}" end before_dispatch :set_session_domain end end However, this does not seem to be working when I try and pull the values from session[:session_domain]. Any help is greatly appreciated.

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  • Rails session cookie not getting set

    - by bwizzy
    I have a rails app that is a CMS that uses dynamic subdomains for each site. For some reason when I deployed to production the session cookie is not getting set. I'm thinking this is leading to the "Invalid Authenticity Token" errors that are being thrown everywhere. I have my production.rb setup so that I can share sessions across subdomains. What could be going wrong that the cookie isn't being set at all? #production.rb config.action_controller.session[:domain] = '.domain.com' #environment.rb config.action_controller.session = { :session_key => '_app_session', :secret => '.... nums and chars .....' }

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  • Get Mechanize to handle cookies from an arbitrary POST (to log into https://www.t-mobile.com/ progra

    - by Horace Loeb
    I want to log into https://www.t-mobile.com/ programmatically. My first idea was to use Mechanize to submit the login form: However, it turns out that this isn't even a real form. Instead, when you click "Log in" some javascript grabs the values of the fields, creates a new form dynamically, and submits it. "Log in" button HTML: <button onclick="handleLogin(); return false;" class="btnBlue" id="myTMobile-login"><span>Log in</span></button> The handleLogin() function: function handleLogin() { if (ValidateMsisdnPassword()) { // client-side form validation logic var a = document.createElement("FORM"); a.name = "form1"; a.method = "POST"; a.action = mytmoUrl; // defined elsewhere as https://my.t-mobile.com/Login/LoginController.aspx var c = document.createElement("INPUT"); c.type = "HIDDEN"; c.value = document.getElementById("myTMobile-phone").value; // the value of the phone number input field c.name = "txtMSISDN"; a.appendChild(c); var b = document.createElement("INPUT"); b.type = "HIDDEN"; b.value = document.getElementById("myTMobile-password").value; // the value of the password input field b.name = "txtPassword"; a.appendChild(b); document.body.appendChild(a); a.submit(); return true } else { return false } } I could simulate this form submission by POSTing the form data to https://my.t-mobile.com/Login/LoginController.aspx with Net::HTTP#post_form, but I don't know how to get the resultant cookie into Mechanize so I can continue to scrape the UI available when I'm logged in. Any ideas?

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  • accepts_nested_attributes_for and nested_form plugin

    - by Denis
    Hi folks, I've the following code in a _form.html.haml partial, it's used for new and edit actions. (fyi I use the Ryan Bates' plugin nested_form) .fields - f.fields_for :transportations do |builder| = builder.collection_select :person_id, @people, :id, :name, {:multiple => true} = builder.link_to_remove 'effacer' = f.link_to_add "ajouter", :transportations works fine for the new action... for the edit action, as explain in the doc, I've to add the :id of already existing associations, so, I've to add something like = builder.hidden_field :id, ?the value? if ?.new_record? How can I get the value? Here is the doc of accepts_nested_attributes_for for reference (source: http://github.com/rails/rails/blob/master/activerecord/lib/active_record/nested_attributes.rb#L332) # Assigns the given attributes to the collection association. # # Hashes with an <tt>:id</tt> value matching an existing associated record # will update that record. Hashes without an <tt>:id</tt> value will build # a new record for the association. Hashes with a matching <tt>:id</tt> # value and a <tt>:_destroy</tt> key set to a truthy value will mark the # matched record for destruction. # # For example: # # assign_nested_attributes_for_collection_association(:people, { # '1' => { :id => '1', :name => 'Peter' }, # '2' => { :name => 'John' }, # '3' => { :id => '2', :_destroy => true } # }) # # Will update the name of the Person with ID 1, build a new associated # person with the name `John', and mark the associatied Person with ID 2 # for destruction. # # Also accepts an Array of attribute hashes: # # assign_nested_attributes_for_collection_association(:people, [ # { :id => '1', :name => 'Peter' }, # { :name => 'John' }, # { :id => '2', :_destroy => true } # ]) Thanks for your help.

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  • Writing a rails validator with integer

    - by user297008
    I was trying to write a validation for Rails to ensure that a price entered on a form was greater than zero. It works…sort of. The problem is that when I run it, val is turned into an integer, so it thinks that .99 is less than .1. What's going on, and how should I fix the code? class Product < ActiveRecord::Base protected def self.validates_greater_than_zero(*attr_names) validates_each(attr_names) do |record, attr, val| record.errors.add(attr, "should be at least 0.01 (current val = #{val.to_f})") if val.nil? || val < 0.01 end end public validates_presence_of :title, :description, :image_url validates_numericality_of :price validates_greater_than_zero :price end

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  • Rails nested URL question

    - by Jacobo Tibaquira
    Hi Im having issues with RESTful URLs in Rails. I have site.com/services url, and I want to have subpages under that category, thats it: site.com/services/arquitecture, site.com/services/plumbing, etc. The pages that im serving under that category are "static" .rhtml files and I would want them to be on the same controller. Is there a way of doing this? I've tried nested resources but I find it hard to fully understand. Thanks

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  • How do I combine two methods into one json formatted variable?

    - by JZ
    I'm storing JSON formatted data into a var adds with the following methods: var adds = <%= raw @add.to_a.to_json %>; var adds = <%= raw @add.nearbys(1).to_json %>; The first line of code stores the location of an individual in JSON format, the second line of code searches for that person's neighbors, within a 1 mile range. How do I combine both of these lines of code and store the data in JSON format in the var adds variable? If you are interested in source, its here. The location is layout/adds.html.erb

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  • Rails Authentication

    - by Oluf Nielsen
    Hey, i need some help with rails, again! Last it was about Authlogic.. Well I'm gone a bit backward since.. I mean, Authlogic isn't a Authentcate system i like.. So now i wan't you guys to tell me what you think is the best! I going to use it to a project of mine. Where there has to be a few roles like Admin, User and Guest.. So might you guys can tell me what is good and what is bad..?

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  • Shorter Rails routes

    - by Puru puru rin..
    Hello, I have a thing blog application, and I would like to shorten my routes. Here there are: Blog::Application.routes.draw do resources :categories do resources :articles do resources :comments end end A rake routes command build the following lines: GET /categories/:category_id/articles/:article_id/comments(.:format) {:controller=>"comments", :action=>"index"} category_article_comments POST /categories/:category_id/articles/:article_id/comments(.:format) {:controller=>"comments", :action=>"create"} new_category_article_comment GET /categories/:category_id/articles/:article_id/comments/new(.:format) {:controller=>"comments", :action=>"new"} GET /categories/:category_id/articles/:article_id/comments/:id(.:format) {:controller=>"comments", :action=>"show"} PUT /categories/:category_id/articles/:article_id/comments/:id(.:format) {:controller=>"comments", :action=>"update"} category_article_comment DELETE /categories/:category_id/articles/:article_id/comments/:id(.:format) {:controller=>"comments", :action=>"destroy"} edit_category_article_comment GET /categories/:category_id/articles/:article_id/comments/:id/edit(.:format) {:controller=>"comments", :action=>"edit"} GET /categories/:category_id/articles(.:format) {:controller=>"articles", :action=>"index"} category_articles POST /categories/:category_id/articles(.:format) {:controller=>"articles", :action=>"create"} new_category_article GET /categories/:category_id/articles/new(.:format) {:controller=>"articles", :action=>"new"} GET /categories/:category_id/articles/:id(.:format) {:controller=>"articles", :action=>"show"} PUT /categories/:category_id/articles/:id(.:format) {:controller=>"articles", :action=>"update"} category_article DELETE /categories/:category_id/articles/:id(.:format) {:controller=>"articles", :action=>"destroy"} edit_category_article GET /categories/:category_id/articles/:id/edit(.:format) {:controller=>"articles", :action=>"edit"} GET /categories(.:format) {:controller=>"categories", :action=>"index"} categories POST /categories(.:format) {:controller=>"categories", :action=>"create"} new_category GET /categories/new(.:format) {:controller=>"categories", :action=>"new"} GET /categories/:id(.:format) {:controller=>"categories", :action=>"show"} PUT /categories/:id(.:format) {:controller=>"categories", :action=>"update"} category DELETE /categories/:id(.:format) {:controller=>"categories", :action=>"destroy"} edit_category GET /categories/:id/edit(.:format) {:controller=>"categories", :action=>"edit"} As can be seen, each resource is ordered in a tree. So I believe that, it's could be interesting to simplify my routes such as for example: /categories/ => / /categories/:id => /:id /categories/:category_id/articles/ => /:category_id/articles /categories/:category_id/articles/:id => /:category_id/:id /categories/:category_id/articles/:article_id/comments/ => /:category_id/:article_id/comments /categories/:category_id/articles/:article_id/comments/:id => /:category_id/:article_id/:id It's more DRY, is't it? :) Does Rails 3 provides a easy way to do so, with an HTTP verbs mapping to controller actions automatically? Thanks anyone.

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  • Rails: unable to set any attribute of child model

    - by Bryan Roth
    I'm having a problem instantiating a ListItem object with specified attributes. For some reason all attributes are set to nil even if I specify values. However, if I specify attributes for a List, they retain their values. Attributes for a List retain their values: >> list = List.new(:id => 20, :name => "Test List") => #<List id: 20, name: "Test List"> Attributes for a ListItem don't retain their values: >> list_item = ListItem.new(:id => 17, :list_id => 20, :name => "Test Item") => #<ListItem id: nil, list_id: nil, name: nil> UPDATE #1: I thought the id was the only attribute not retaining its value but realized that setting any attribute for a ListItem gets set to nil. list.rb: class List < ActiveRecord::Base has_many :list_items, :dependent => :destroy accepts_nested_attributes_for :list_items, :reject_if => lambda { |a| a[:name].blank? }, :allow_destroy => true end list_item.rb: class ListItem < ActiveRecord::Base belongs_to :list validates_presence_of :name end schema.rb ActiveRecord::Schema.define(:version => 20100506144717) do create_table "list_items", :force => true do |t| t.integer "list_id" t.string "name" t.datetime "created_at" t.datetime "updated_at" end create_table "lists", :force => true do |t| t.string "name" t.datetime "created_at" t.datetime "updated_at" end end

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  • Rails 3 on dreamhost?

    - by p33t3r
    I'd like to deploy a small Rails 3 app on dreamhost (just testing purposes, nothing serious) and I am wondering if anyone did it already... please chose one of I did it and it's super easy, here's how: ... Though I didn't try it, it should be easy, here's how: ... It's quite complicated, but this should get you started: .... NO WAI!!!1!one!1 Set it up on slicehost or another non-shared hosting or you'll die a painful death trying to force it on DH Thoughts?

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  • Disabling model's after_find only when called from certain controllers

    - by Lynn C
    I have an after_find callback in a model, but I need to disable it in a particular controller action e.g. def index @people = People.find(:all) # do something here to disable after_find()? end def show @people = People.find(:all) # after_find() should still be called here! end What is the best way to do it? Can I pass something in to .find to disable all/particular callbacks? Can I somehow get the controller name in the model and not execute the callback based on the controller name (I don't like this)..? Help!

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  • authlogic auto_register feature using my options

    - by holden
    I have auto registration working with authlogic using gaizka's version of authlogic_openid which I found on Github since pelle's original addition of the feature seemed to cause issues. http://github.com/gaizka/authlogic%5Fopenid http://stackoverflow.com/questions/1476953/using-authlogic-to-auto-create-users-bypassing-explicit-user-registeration This one works fine however when using the auto_register feature it ignores my options for authlogic such as retrieving the email from the openid provider... any ideas what I'm doing wrong? Hhere's the example: http://big-glow-mama.heroku.com/ http://github.com/holden/authlogic_openid_selector_example/tree/with-facebook/ You can see the difference if you register vs. login... #user.rb class User < ActiveRecord::Base acts_as_authentic do |c| c.validate_login_field = false # optional, but if a user registers by openid, he should at least share his email-address with the app c.validate_email_field = false # fetch email by ax c.openid_required_fields = [:email,"http://axschema.org/contact/email"] #c.required_fields = ["http://axschema.org/contact/email"] # fetch email by sreg #c.optional_fields = ["email"] end #private method to deal with emails goes here end #UserSession.rb class UserSession < Authlogic::Session::Base auto_register logout_on_timeout true end

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  • converting Date object to TimeWithZone

    - by avaynshtok
    I need to convert a Date object into a TimeWithZone object representing the beginning of that day in a given time zone. The following approach works, but seems too convoluted as it requires me to convert the date to a string: ?> date = Date.parse("2010-02-17") => Wed, 17 Feb 2010 >> ActiveSupport::TimeZone['Eastern Time (US & Canada)'].parse(date.to_s) => Wed, 17 Feb 2010 00:00:00 EST -05:00 >> ActiveSupport::TimeZone['UTC'].parse(date.to_s) => Wed, 17 Feb 2010 00:00:00 UTC 00:00 Is there a better way I'm missing?

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  • How to skip callbacks on Mongoid Documents?

    - by jpemberthy
    My question is similar to this one http://stackoverflow.com/questions/1342761/how-to-skip-activerecord-callbacks but instead of AR I'm using Mongoid, It seems like that isn't implemented yet in the current version of Mongoid, so I'd like to know what should be an elegant solution to implement it. (if necessary).

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  • Rails form protection questions, hidden field

    - by user284194
    I have a live rails website and I want to have a form with a lot of fields on it. I have set up validations and allowed formatting for every field. I've tested it quite a bit and it seems to catch anything I throw at it. I think it's almost ready to go live, but I want to quadruple check if there's anything else I should do to protect it. My site has a low volume of visitors, but I want it to be a safe as possible. I'd like to avoid using a captcha if I can. I've read that you can use a hidden field to protect forms against bots. Do people recommend this instead of using a captcha, or even using it with a captcha? my form is really standard: <% form_for(@entry) do |f| %> ... <%= f.submit 'Create' %> <% end %> Any suggestions or code samples would be greatly appreciated.

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