similar to: Newbie-Question

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

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 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

Hi! I''ve got a very strange problem. Suddenly the SQLite3 Backend stopped working. Example 1: > rake db:rollback == CreateProducts: reverting ================================================= -- drop_table(:products) rake aborted! An error has occurred, this and all later migrations canceled: SQLite3::SQLException: near "CASCADE": syntax error: DROP TABLE

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

I''m getting the following bug when I try to run rake db:migrate in Rails 3 beta 4: $ rake db:migrate --trace (in C:/Users/Adam/Documents/Aptana Workspace/QuestionBank) default formats are encoded in ISO-8859-1 ** Invoke db:migrate (first_time) ** Invoke environment (first_time) ** Execute environment ** Execute db:migrate == CreateUsers: migrating

I''m having a problem with one of the migration files from the depot application. ** Invoke db:migrate (first_time) ** Invoke environment (first_time) ** Execute environment ** Execute db:migrate == AddPrice: migrating ======================================================== -- add_column(:products, :price, :decimal, {:scale=>2, :default=>0, :precision=> 8}) rake aborted! You

All of a sudden, I''m getting this error: 1) Error: test_index(AccountControllerTest): RuntimeError: The number of parameters does not match the number of substitutions. /home/joe/projects/tanga/trunk/config/../vendor/rails/actionpack/lib/action_controller/assertions.rb:92:in `assert_redirected_to''

Hello all, I''m kinda going through a rocky upgrade to rails 1.1 and I can''t find much on google about this. When I run my tests I get this: $ rake (in /home/www/art2) /usr/bin/ruby -Ilib:test "/usr/lib/ruby/gems/1.8/gems/rake-0.7.1/lib/rake/rake_test_loader.rb" "test/functional/panoramas_controller_test.rb"

My migrations were working fine until today. I dropped and re-created the database.But, when I go to apply my migrations, rake migrate aborts with this 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.first Any idea what might be wrong? The migrations look right. It''s talking to the

Has anyone encountered this error or know how to correct it? I couldn''t find any Rails-specific info about this on google. Here are the circumstances: /usr/local/bin/ruby --version ruby 1.8.4 (2005-12-24) [i686-linux] /usr/local/bin/rails --version Rails 1.1.6 ## Create mcd app rails mcd -d oracle cd mcd ## Create oracle tablespace & user sqlplus ''/ as

I''m getting ready to go to the Rails Studio in Pasadena next week. As part of the prep for that event, I was instructed by the Pragmatic guys to download and install a new Rails 1.0/Ruby 1.8.4 configuration to my OS X 10.4.4 box. I did that three or four days ago. Ever since then, I cannot run a rake migrate command successfully anywhere in my Rails world. (Mind you,

I am beginner for this Rails from the past 2 days I am working hard to fix the following error C:\Murali Rubby\demo\library>rake db:migrate --trace (in C:/Murali Rubby/demo/library) ** Invoke db:migrate (first_time) ** Invoke environment (first_time) ** Execute environment ** Execute db:migrate == CreateBooks: migrating ==================================================== --

I''m writing some code that accesses some lagacy database on PostgreSQL. Since the old database had some really ughly and weird naming conventions (like CamelCase). To work around this I created a second schema (named rails) in the same database and gave the tables and fields some rails-friendly names. The database user that Rails uses has its search_path set to the rails schema. That way

When I run the rake db:migrate command, I get this: C:\testror\depot>rake db:migrate --trace (in C:/testror/depot) ** Invoke db:migrate (first_time) ** Invoke environment (first_time) ** Execute environment ** Execute db:migrate rake aborted! 182: Le systÞme d''exploitation ne peut pas exÚcuter %1. - c:/ruby/ lib/ruby/gem

Hello to everyone, I have a problem that is giving me a headache, and trying to do a project in Ruby on Rails and I need to connect with a Data Base that is en Postgres, the truth is that I didn’t think that it was so hard to connect a DB with postgres because I was working with Msyql and everything was easy. This are the thinks that I have install in my computer. 1. Debian GNU/Linux, kernel

Hi all. I keep having the following error when I invoke the rake db:migrate command for Rails 1.1 (Ruby 1.8.2 -- Windows 2000) ** Invoke db:migrate (first_time) ** Invoke environment (first_time) ** Execute environment ** Execute db:migrate == Realtorex: migrating ======================================================= -- create() rake aborted! undefined method `create'' for

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

Hi, I''m trying to get the UserEngine running. I have installed the LoginEngine, added the essential lines to environment.rb / application.rb and application_helper.rb. Worked fine. Then I did the same with the UserEngine and when trying to set up the db: rake engine_migrate ENGINE=user I get: Migrating engine ''user_engine'' rake aborted! stack level too deep But...

Rails 1.2.5 Ruby 1.8.6 Rake 0.7.3 RSpec 1.0.8 PostgreSQL 8.2.5 I am experiencing a problem with the "rake spec spec" task on an initial trial of rspec. After creating the rails app I installed rspec and rspec_on_rails in the vendor\plugins subdirectory from svn. I then used ruby script\generate rspec_model product. I next manually created the database instances depot_development and