Update (April 28, 2012) Try the new debugger gem as a replacement for ruby-debug. (credit to @ryanb) Update (March 2, 2012) Installation of linecache19 and ruby-debug-base19 can be easily done with: bash < <(curl -L https://raw.github.com/gist/1333785) (credit to @fredostarr) Original answer Have you looked at ruby-debug19 on ruby-1.9.3-preview1? Here’s a temporary solution: http://blog.wyeworks.com/2011/11/1/ruby-1-9-3-and-ruby-debug Excerpt from … Read more
I agree with ddfreynee, but in case you know what you need code can look like: require ‘rake’ Rake::Task.clear # necessary to avoid tasks being loaded several times in dev mode Sample::Application.load_tasks # providing your application name is ‘sample’ class RakeController < ApplicationController def run Rake::Task[params[:task]].reenable # in case you’re going to invoke the same … Read more
Beginning with Rails 3.2.3, when calling render :partial (only works outside of the respond_to block). render formats: [ :html ] instead of render format: ‘html’
For anyone else encountering this issue with SQLite locking in development when a Rails console is open, try this: Just run the following: ActiveRecord::Base.connection.execute(“BEGIN TRANSACTION; END;”) For me anyway, it appears to clear any transaction that the console was holding onto and frees up the database. This is especially a problem for me when running … Read more
You can store Arrays and Hashes using ActiveRecord’s serialize declaration: class Comment < ActiveRecord::Base serialize :stuff end comment = Comment.new # stuff: nil comment.stuff = [‘some’, ‘stuff’, ‘as array’] comment.save comment.stuff # => [‘some’, ‘stuff’, ‘as array’] You can specify the class name that the object type should equal to (in this case Array). This … Read more
As far as I can remember, has_and_belongs_to_many gives you a simple lookup table which references your two models. For example, Stories can belong to many categories. Categories can have many stories. Categories_Stories Table story_id | category_id has_many :through gives you a third model which can be used to store various other pieces of information which … Read more
I just had this issue myself. 3 points that will hopefully help: If you place images in your app/assets/images directory, then you should be able to call the image directly with no prefix in the path. ie. image_url(‘logo.png’) Depending on where you use the asset will depend on the method. If you are using it … Read more
From the Rails api on PartialRender: Rendering the default case If you’re not going to be using any of the options like collections or layouts, you can also use the short-hand defaults of render to render partials. Examples: # Instead of <%= render partial: “account” %> <%= render “account” %> # Instead of <%= render … Read more
Hmm, I discovered an interesting thing. In order for Rails to auto load my class, the class name should be compliant to the file name and the folder structure. For example, if I want to have Google module autoloaded, I must placed it inside google.rb, directly under /lib (incase I specify autoload from /lib). If … Read more
I have done that in my project. The trick is that photos need a column that will be used in has_one condition to distinguish between primary and secondary photos. Pay attention to what happens in :conditions here. has_one :photo, :as => ‘attachable’, :conditions => {:photo_type => ‘primary_photo’}, :dependent => :destroy has_one :secondary_photo, :class_name => ‘Photo’, … Read more