similar to: Help please: AWDWR -- Migration failure

People, I''m looking at the migrate example on p 74 of the rails2.pdf It''s a simple example of using a migration to add a column to the products table. Here is a copy of the migration file named 002_add_price.rb after I generated and then edited it: class AddPrice < ActiveRecord::Migration def self.up add_column :products, :price, :decimal, :precision => 8, :scale

Hi. I''ve just started using Ruby on Rails. Now I''ve got my first problem. I generated a new migration ''add_price'' and get the message:

I am just starting out learning RoR. I am trying to follow along with the Depot project in "Agile Web Development With Rails ed2" and get the error "You have a nil object when you didn''t expect it! You might have expected an instance of Array. The error occured while evaluating nil.[]" I ran --trace and get the following, but I am not sure what it means. Can

Hi everyone, For one of our projects we have a need to deploy and maintain a demo. As a result I''ve attempted to setup a set of rake tasks for the job. My goal is have one rake task called "deploy_demo" which purges the database, migrates to the current schema, and loads the db from a set of fixture files in a specified location. I''ve written two new tasks the perform

hello, i am trying to upload a image file ...using paperclip in rails 3 i did as follows 1. In gemfile => included gem paperclip 2.In config/environments /development.rb => Paperclip.options[:command_path] = "/usr/bin/" (convert path) 3.created a controller *picusers *and defined => def create @picuser = Picuser.create(params[:picuser]) end 4.created a model *picuser

It can be quite hard to manage a pool of 40-50 VMs without informations about the OS running, the contact (which is the only one to know when the vm can really be destroyed) or an End Of Life date. This patch add those fields, and rework a little the VM list view, in order to show gracefully those new fields. It has been made at the expense of UUID, Total Run Time & Load fields. Since those

Hi all, I''ve installed paperclips but paperclip is not saving the files my model has has_attached_file :attachment,:styles => { :medium => "300x300>", :thumb => "100x100>" } and i have db migration as class AddAttachmentToPolicies < ActiveRecord::Migration def self.up add_column :policies,

Hi list, My tag_question_user join table is not currently a full-blown model. It doesn''t have a primary key - just tag_id, question_id, and user_id. I now want to add a primary key to this model (because I want to add a "description" column as well so users can describe the tag. I''m not sure how to add this using migrations. Here is what I have: class AddNotesToTags

Hi all, Just starting with Rails and working through the early chapters of the Pragmatic Programmers Agile Development with Rails book (2nd addition). When doing a "rake db:migrate" to add a column to a table I get this: undefined method `default'' for #<ActiveRecord::ConnectionAdapters::MysqlAdapter:0xb7517ec8> Any ideas? thanks, David PS: Here''s the full

Hello everyone, just wondering if anyone can help me with a migrations question here. Using: rails 2.0.2 ruby 1.8.6 (2007-09-24 patchlevel 111) [i386-mswin] mysql 5.0.45 Platform: windows xp The problem: ---------- I created a migration that is designed to add a column named "deleted_at" (timestamp) and then remove a column named "is_deleted" (boolean). The idea is to

Hi I get the following when I try and run "rake db:migrate" (I"m running un Ubuntu linux) ********** code ********** (in /<home hidden>) == AddRpts: migrating ========================================================= -- add_column("rpts", :integer, {:limit=>3}) rake aborted! You have a nil object when you didn''t expect it! You might have expected an

Please tell me I''m just confused, but this is very strange. I have a migration like so: class AddLevelToRequest < ActiveRecord::Migration def self.up add_column :requests, :title_levels, :string end def self.down remove_column :requests, :title_levels end end Run the migration, and from the console do: >> r = Request.new => #<Request:0x31a243c

OK, I''ve created the following migration class CreateProducts < ActiveRecord::Migration def self.up create_table :products do |t| t.column :title, :string t.column :description, :text t.column :image_url, :string end end def self.down drop_table :products end end This has created a table no problem. I''ve then added another column

I''ve uploaded the B1.12 version of AWDwR. The major changes include: - Justin Gehtland''s new chapter on Web 2.0 - James Duncan Davisdon''s chapter on deployment (this is an interesting one---JDD has strong opinions on how a Rails application should be deployed, and the chapter mirrors this. You''ll find it short and easy to follow). - I changed the

I''m working on a bugtracker application in rails. I have a Bug model and I want to add a Priority to the mix. A Bug can have one priority. I generate a Priority model, modify my Bug model with a belongs_to :priority and create my migration like so: class CreatePriorities < ActiveRecord::Migration def self.up create_table :priorities do |t| t.column :name, :string,

I''m having a silly little problem with migrations.  All I''m trying to do is to add an SSN column to my Employees table.  I generated a migration which looks like: class AddSsn &lt; ActiveRecord::Migration def self.up     add_column :employees, :ssn, :string end def self.down     remove_column :employees, :ssn   end end When I run this, however, I get: &gt;rake

From: Simon Courtois <scourtois at linagora.com> Signed-off-by: Simon Courtois <scourtois at linagora.com> --- src/app/controllers/vm_controller.rb | 19 ++++++++++++++++- src/app/views/vm/_form.rhtml | 25 ++++++++++++++++++++--- src/db/migrate/044_add_virtio_to_vm_and_nic.rb | 11 ++++++++++ src/public/stylesheets/components.css | 5

There was no release since virtio support was introduced, so a proper migration is not necessary. Signed-off-by: Nicolas Ochem <nicolas.ochem at gmail.com> --- src/app/controllers/vm_controller.rb | 6 ++- src/app/models/nic.rb | 2 + src/app/views/vm/_form.rhtml | 25 +++++++++------- src/db/migrate/046_add_model_to_nic.rb | 29 ++++++++++++++++++

I have a model Product with an attribute ''brand''. Currently it is a simple attribute, however, I am migrating it to a separate model Brand so that I can have other attributes with each brand. I created the the model and created and ran the migration to create the new table. So far so good. Then I created a separate migration to transfer the data. The up method

Ok, so now Users need to be associated with Organizations. I''ve created a migration and added a ''organization_id'' column to the users table. I want the default organization_id to be the first Organization. So I have :default => Organization.find(:first). But it''s complaining about not being able to find the constant ''Organization''. Any