similar to: forms, javascript and ajax - hopefully an easy question

in some other language have a concept e.i "auto postback" So, in Ruby on rails is there any such option e.i "auto postback" or same as "auto postback" basically what i want ot do is that i have 2 select box One for "Industry" and other for "Chemical" 1st we show all the industry in "Industry" select box. if we select any 1 industry

Hi All, New to the group, and new to learning rails. I''m having some trouble, i''ve done a few tutorials on creating some small apps with rails and am now starting to play around myself. I''ve been trying to create a simple form which when a user enters any data that data is displayed as a preview elsewhere on the page instantly, just like when creating an advert with

I have been trying to pass a collection_select parameter and a text field parameter to observe_field so that it watches both the parameters simultaneously. but what i can see is , when i select some value from drop down and dont write anything in text field its giving correct results.parameters are also correct passed, but just after that if i write something in text field that value also get

How could I check the value of an javascript object''s attribute? <div id="new_item_details" style="display:none"></div> <%= link_to_function("Show details...", nil, :id => "show_details") do |page| page.visual_effect(:toggle_blind, :new_item_details) if (page[:new_item_details].style.visibility ==

I tried to install Rails 3 Beta in my snow.leopard machine using the command below: (w/ sudo if it requires) gem install tzinfo builder memcache-client rack rack-test rack-mount erubis mail text-format thor bundler i18n unfortunately after 12 gems installed i got an error regarding builder-2.1.2 12 gems installed Installing ri documentation for tzinfo-0.3.22... Installing ri documentation for

I am using image_tag to load an image that I''ve saved to the database (using attachment_fu if you''re curious but that''s probably not relevant here): VIEW <%= image_tag ''/photo/get_image/5'' %> CONTROLLER def get_image @photo=Photo.find(params[:id]) send_data(DbFile.find(@photo.db_file_id).data, :type =>

Hi, Found a simple example breaking on moving to 2.2 from 2.0. This example illustrates the usage of nested :include finder options. class Book < ActiveRecord::Base has_many :distributors end class Distributor < ActiveRecord::Base belongs_to :book has_many :agents end class Agent < ActiveRecord::Base belongs_to :distributor has_many :shops end class Shop <

Hi guys. I''m writing a plugin for use in the test environment. However, when I run ``rake test'''' or ``rake spec'''', RAILS_ENV is set to "development" when my plugin''s init.rb is run. How do you configure a plugin to load require a file in the test environment? Thanks, Nick --~--~---------~--~----~------------~-------~--~----~ You

Hi, im looking to build a page similar to a shopping cart page. When you change the ''price'' or ''quantity'' fields, the total is calculated and displayed. There are other fields in the form which have no relation to this action. So i guess observe_form is not required. Can someone tell me what the best practise is for this?

I am having this crazy problem where it ONLY shows up in testing. This is my test code <code> def test_should_destroy task1 = Task.new(:description => "tmp", :done => false, :user => User.find_by_login(''admin'')) assert task1.save assert task1.destroy end </code> This is my task model

How they differ? Does the to_xml method of the classes array/hash/object is based on ROXML lib? As I see in http://roxml.rubyforge.org/#quickstart, roxml needs we define the class (class Book in the guide) before to convert a object to xml. Moreover, the method to_xml (when not using "include ROXML") just accepts any existing object, what is much suitable. I need to compare and tranfer

I have just finished my first Rails application following the lynda.com tutorial, but I am not sure how to get my application on the internet. I have an ftp account through the applemachine server, but from what I have read, I''m afraid I will not be able to host my application there. What I am looking for is step by step directions on how to get from a working Ruby on Rails application

Hey everyone, I''m having an incredibly difficult time getting bundle to work properly on my production server. My production server setup: Ubuntu 10.04 Ruby 1.9.2p290 Rails 3.0.4 Passenger rvm 1.6.32 My Gemfile (relevant parts): gem ''linkedin'', :git => "https://github.com/renatosnrg/linkedin.git" Whenever I try to do "bundle install" I get this

I want to upload file using get method. for example, "http://www.mydomain.com/upload?file=c:\test.exe" upload my local file to the remote server. I found one useful link about file uploading here(http:// www.tutorialspoint.com/ruby-on-rails/rails-file-uploading.htm). Even I''ve changed some code in order to fit my rails version, it worked well. But the problem is I have use

Hello all, I developed an app using Rails 3.1 and uploaded it to heroku. When I typed rake db:migrate , I got the following error: Could not find a JavaScript runtime. See https://github.com/sstephenson/execjs for a list of available runtimes. Does heroku support Rails 3.1? They seem to have no Javascript runtime env''s like nodejs on their machine! -- You received this message

I''m going through my old tickets, and I found an outstanding ticket that I''ve put many hours into, and is absolutely critical for a production project that I''m now updating to Rails 2.0.2. The ticket: http://dev.rubyonrails.org/ticket/9560 This comes on the tail of: http://dev.rubyonrails.org/ticket/9497 Which I believed to be the superior improvement due to a very

I''m just getting into RoR, coming from a long PHP background. So far I LOVE IT! I''m hitting a roadblock with updating my mysql database. For simplicities sake, I have 2 tables and here are the relevant columns. Table Users id name email Table Issues id createdby assignedto reportedby In my models I have everything mapped properly I believe. When I try to update the

Hi folks! I''ve been experimenting an error messagem when I try to run unity test in any model of my project. Here it is: /home/fabricio/shopcell/config/environment.rb:1:in `require'': no such file to load -- active_record/version (LoadError) from /home/fabricio/shopcell/config/environment.rb:1 from ./test/test_helper.rb:2:in `require'' from ./test/test_helper.rb:2

given an Arra tags[] I need to produce a resulting Hash as following .. { "$in" => [tags[0]], "$in" =>[tags[1], ...} in which the key should be always the same and the value being an Array I tried this : myHash = {} tags.each do |tag| h = {"$in" => [tag]} myHash.merge!(h) end but the merge! is only

Hi all: i am using gem to insall rails 2.3.3 and using $rails myapp to generate my application, but strangely i can''t use the number_helper below is my env: export RUBY_HOME=$HOME/ruby export GEM_HOME=$HOME/gems export RUBYLIB=$RUBY_HOME/lib:$RUBY_HOME/lib/ruby:$RUBY_HOME/lib/ site_ruby/1.8 export PATH=$HOME/gems/bin:$HOME/ruby/bin: and: $ locate number_helper.rb