I have a collection of recipes, each having a number of ingredients. This information is stored in a join table. Give a recipe, I'd like to find recipes similar to it based on ingredients. How would I go about doing this? ...
I have a couple of models like so class Bill < ActiveRecord::Base has_many :bill_items belongs_to :store accepts_nested_attributes_for :bill_items end class BillItem <ActiveRecord::Base belongs_to :product belongs_to :bill validate :has_enough_stock def has_enough_stock stock_available = Inventory.product_is(self...
I have some code I need to use in multiple controllers in a rails 1.0 application (I can't, for strange reasons upgrade to a newer rails). I've extracted the relevant code into a filer object, and I'm using the around_filter construct to execute it. Before the extract, I was using the method render_to_string() to get the contents of a ...
I am working on a very typical web application. The main component of the user experience is a widget that a site owner would install on their front page. Every time their front page loads, the widget talks to our server and displays some of the data that returns. So there are two components to this web application: the front end UI ...
I have site running rails application and resque workers running in production mode, on Ubuntu 9.10, Rails 2.3.4, ruby-ee 2010.01, PostgreSQL 8.4.2 Workers constantly raised errors: PGError: server closed the connection unexpectedly. My best guess is that master resque process establishes connection to db (e.g. authlogic does that when...
I have a list of images where user can arrange their orders. When user uploaded an image, I want the list to still be sortable. I am using a similar upload that was described here: http://kpumuk.info/ruby-on-rails/in-place-file-upload-with-ruby-on-rails/ Please help. Here are the code for upload in view file: <% form_for [:admin, ...
How can I create a route of this format (in Ruby on Rails routes.rb file): /#action/id Specifically with the "#" character inserted before the action controller...for example, see http://lala.com/#album/some-album-id thanks! ...
I have this nested loop that goes 4 levels deep to find all the image widgets and calculate their sizes. This seems really inefficient and nasty! I have thought of putting the organization_id in the widget model so I could just call something like organization.widgets.(named_scope), but I feel like that's a bad short cut. Is there a bett...
I have the following gems defined in my environment.rb file: config.gem "authlogic" config.gem "paperclip" config.gem "pauldix-feedzirra", :lib => "feedzirra", :source => "http://gems.github.com" config.gem 'whenever', :lib => false, :source => 'http://gemcutter.org/' I have them installed on my local computer and everything i...
If you saw the railscasts on nested forms this is the helper method to create links dynamically. However, after I upgraded to ruby 1.9.2 and rails 3 this doesn't work and I have now idea why. def link_to_add_fields(name, f, association) new_object = f.object.class.reflect_on_association(association).klass.new fields = f.fields_...
What is the more "rails-like"? If I want to modify a model's property when it's set, should I do this: def url=(url) #remove session id self[:url] = url.split('?s=')[0] end or this? before_save do |record| #remove session id record.url = record.url.split('?s=')[0] end Is there any benefit for doing it one wa...
Im trying to test my successfully creates a new user after login (using authlogic). Ive added a couple of new fields to the user so just want to make sure that the user is saved properly. The problem is despite creating a valid user factory, whenever i try to grab its attributes to post to the create method, password and password confir...
Hi I have a rails form with a nested form. I used Ryan Bates nested form with jquery tutorial and I have it working fine as far as adding the new fields dynamically. But when I go to submit the form it does not save any of the associated attributes. However if the partial builds when the form loads it creates the attribute just fine. I...
I just uploaded files(doc & pdf) in my web server(with my coding). I want to stream those files when I click download link on my page. please share any tutorials or any suggestions? ...
Hello I have a rails application where I have to subtract 2 time stamps and display the result on the webpage I have used the following sql statement and I am getting the results. select (julianday(resolutions.created_at)-julianday(tickets.created_at))*24 from tickets,resolutions the value of tickets.created_at is 2010-04-05 18:59:...
I have a simple rails 2.3.4 application I am trying to get running with rails 3.0.0-beta2. I have the server running and all my links and navigation showing, however for some reason the content of my views is not displaying. When I navigate to Site/index the html in my index.html.erb in my site view is completely ignored. There are no ...
I'm creating a Rails application where users can have a first and last name. Since I'm a perfectionist, the application may not show something like Dennis's profile or Xianx's profile, but rather Dennis' profile and Xianx' profile. I use I18n, so I wanted to ask what is the shortest way of implementing this? This grammar is the same for ...
Hey, i have some experience with MVC. but I'm new to rails. I'm using the scaffold command to generate some default files. The model looks clean and nice, but the controller and the views aren't really dry. The contents of new.html.erb and edit.html.erb are almost the same and the methods new/edit and create/update are doing almost the s...
Is there a way to use the HAVING clause in some other way without using group by. I am using rails and following is a sample sccenario of the problem that i am facing. In rails you can use the Model.find(:all,:select,conditions,:group) function to get data. In this query i can specify a having clause in the :group param. But what if i d...
I'm working on an API that accepts data from remote clients, some of which where the key in an HTTP POST almost functions as an array. In english what this means is say I have a resource on my server called "class". A class in this sense, is the type a student sits in and a teacher educates in. When the user submits an HTTP POST to creat...