CODEWITHSUNDEEP
ruby-on-railsrubyactiverecord
iboss
iboss

Reputation: 486

How can I use existing Activerecord model in rails in ruby script

If I have a ruby script at the root directory of rails application and I need to access existing Activerecord model which is created inside rails environment. How can I use something like

user = User.new

in my script without establishing a new connection or create a new class.

Upvotes: 1

Views: 772

Answers (1)

spickermann
spickermann

Reputation: 106802

There are two common ways to deal with Rails models from the command line:

1) rake tasks

Create a rake task in lib/tasks

# example lib/tasks/foo.rake
desc 'an example task'
task :foo => [:environment] do  
  user = User.new
  ...
end

And call that task from your command line with:

rake foo

2) script runner

Create a method within your application that does the job

# example in app/models/user.rb
class User < ActiveRecord::Base
  ...
  def self.foo
    user = User.new
    ...
  end
end

And call this method from the command line with:

rails runner "User.foo"

I prefer the second way, because it is easier to test and reuse the code.

Upvotes: 1

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