如何运行位于Rails的db文件夹中的文件（版本2.3.18）

Question

I am working on maintenance project which is in rails version '2.3.18'. And i am able to run the migrations but could not obtain the data. There is no seeds.rb file in db, but there is a file named example_data.rb as:

module FixtureReplacement
  attributes_for :category do |c|
    c.name = "General"
    c.desc = "general"
  end
  attributes_for :price, :from => :equity do |a|
    a.etype = "dollars"
    a.exchange = '60'
  end
 ..........................
.................
end

I think this is the seed file for the project. I tried running

rake db:example_data (recollecting rake db:seed), but there is no luck.

Please help me, how to run this file.

Answer 1

Sadly, that's not a seed file, but a replacement for Rails' built in fixtures called FixtureReplacement that's intended to be used in your test environment. It's very similar to something like Fabrication or FactoryGirl .

That file doesn't actually define any preset data, but instead gives you a cleaner way to create records with preset defaults. You won't be able to simply run the file, but you could write a script that includes your Rails environment and includes FixtureReplacement . From there you can run commands to generate data as shown in FixtureReplacement 's documentation :

# Require Rails env on this line
include FixtureReplacement
new_category # Uses defaults
new_category(name: "Something", desc: "something")
new_price # Uses defaults
# and so on

Honestly though, it might be wiser to just script something from scratch.