Passing additional parameters to Rails Generate Model?

Question

I\'m new to Ruby and Rails and I\'m running Rails 3 on Ruby 1.9.2.

I want to create a model, so I looked at the documentation to get the table definition that I want, bu

Answer 1

You can pass "null".to_sym => false in your rails generate model.
For example:

rails g model client 'ClientName, "null".to_sym => false:string{100}'

This will turn the "null" into a symbol, allowing it to run properly when running db:migrate

Answer 2

As it turns out, the limit can (now) be specified in the command line:

rails generate model user pseudo:string{30}

Source: usage doc from Rails GitHub project

Setting the default, however, still appears to require editing the migration manually.

For additional migration options, see the official Rails migrations guide.

Answer 3

Yes you do have to manually edit the migration file for that. The generator just offers a starting point, it does not do everything.

Doing this in the migration file is very easy anyway.

create_table :articles do |t|
  t.string :title, :null => false
  t.text   :details, :limit => 3000, :null => false
end

Answer 4

Try some tricks: belongs_to and index

rails g model User username:string:index group:belongs_to

This will create:

class User < ActiveRecord::Base
  belongs_to :group
  attr_accessible :username
end