search for: magian

Hi everyone, I am trying to extend an active record model using obj.extend(module). The aim is to overwrite some of the model methods depending on what''s in the object. For example, the base class would be "file", with objects such as "image", and "text". The aim is to be able to something like this: file = File.new() file.extend(Image) file.process

Hi list, I''m trying to figure out the best way to add some functionality to active record. I have a table of files, and need to write a set of core functions that do different things depending on the type of file eg: class file < ActiveRecord::Base def resize ....does stuff end end the problem is the "....does stuff". For example, if the file is an image it

Hi everyone, I''m looking for a shortcut to finding and updating or creating record depending on the results of the find. So, is there a shorter way to do it than this? @stuff = Stuff.find_by_foo_and_bar("yay","hooray") if @stuff: Stuff.update(@stuff.id, {:foo => "boo", :bar => "hoo"}) else Stuff.create({:foo => "boo",

Hi listers, I''m trying to build an xml doc using Builder, but I''m having trouble getting it to draw a tree structure from a self-referential table. Here''s what I''m after: ========================== ---- object structure ---- node (name => root) - node (name => child 1) - node (name => child 2) - node (name => child 2.1) - node

Hi all, I am trying to use backgroundrb to cache a set of controller actions that are quite processor expensive (there is some pretty heavy xml processing going on). In my rails app I have page caching set up to observe the appropriate controllers and models and all works well. However when model changes occur in a backgroundrb process the cache sweeper isn''t notified of the changes

Hi, I am using rmagick to resize a copy of uploaded images and display the copy as a thumbnail. Once the upload is processed it redirects the user to a page that should display the thumbnail to the user. The problem is that the rmagick resize function seems to keep going in the background after handing the new images url (and control) back to rails, which then happily renders the page with

Hi all, I''m using the older win32 happy backgroundrb in combination with the ''acts_as_ferret'' install as a plugin. Since I''ve installed acts_as_ferret, I haven''t been able to get backgroundrb to start. It keeps failing at the ''acts_as_ferret'' method call in one of my models. Here''s a code snippet of the model: class Book

Hi, I''ve been playing with backgroundrb to batch process a bunch of images on a rails server. The process is working fine when backgroundrb is started from the command line, but seems to choke occasionally (well, quite often) when running as a service. It seems to get stuck on the following line when moving files: FileUtils.move(src, dest, :verbose => true) with the error: Bad