I’m having a really frustrating issue: Rake is being dumb. Here’s how the problem comes about: $ rails new test_app $ rails generate scaffold new_scaffold field1:string field2:text Both of those work just fine, but then when I do this, $ rake db:migrate I get the following error. (in /home/mikhail/test_app) rake aborted! uninitialized constant Rake::DSL /usr/lib/ruby/1.9.1/rake.rb:2482:in … Read more
After adding migration files in the db/migrate folder and running rake db:migrate, I want get back to the previous step, I think using VERSION=n is the right way to do that, but I don’t know the correct value of n to use. Is there any command to check the current n value? It would be … Read more
This question already has answers here: How to pass command line arguments to a rake task (20 answers) Closed 4 years ago. I am able to pass in arguments as follows: desc “Testing args” task: :hello, :user, :message do |t, args| args.with_defaults(:message => “Thanks for logging on”) puts “Hello #{args[:user]}. #{:message}” end I am also … Read more
I am trying to create a custom rake task, but it seems I dont have access to my models. I thought this was something implicitly included with rails task. I have the following code in lib/tasks/test.rake: namespace :test do task :new_task do puts Parent.all.inspect end end And here is what my parent model looks like: … Read more
I have a rake task where I do some checks at the beginning, if one of the checks fails I would like to return early from the rake task, I don’t want to execute any of the remaining code. I thought the solution would be to place a return where I wanted to return from … Read more
What’s the best way to run scheduled tasks in a Rails environment? Script/runner? Rake? I would like to run the task every few minutes. 20 Answers 20
What does bundle exec rake db:migrate mean? Or just bundle exec rake <command> in general? I understand that bundle takes care of maintaining things in the Gemfile. I know what the word “exec” means. I understand that rake maintains all the different scripty things you can do, and I know that db:migrate is one of … Read more
I have a Rakefile that compiles the project in two ways, according to the global variable $build_type, which can be :debug or :release (the results go in separate directories): task :build => [:some_other_tasks] do end I wish to create a task that compiles the project with both configurations in turn, something like this: task :build_all … Read more
I have a dev Ruby on Rails database full of data. I want to delete everything and rebuild the database. I’m thinking of using something like: rake db:recreate Is this possible? 2Best Answer 21 I know two ways to do this: This will reset your database and reload your current schema with all: rake db:reset … Read more
The difference between rake db:migrate and rake db:reset is pretty clear to me. The thing which I don’t understand is how rake db:schema:load is different from the former two. Just to be sure that I am on the same page: rake db:migrate – Runs the migrations which haven’t been run yet. rake db:reset – Clears … Read more
