How to access models that are stored in the gem?

Question

Ruby on Rails

There is a rails application, most of which, including models, is in an included gem.
I'm writing a class to use it in rake task'e, it's in /lib. The class needs access to the application's models. How to get it?

Answer 1

let's say you write your_task.rake file
you can write it like this and load the default rails environment (note the :environment )

namespace :your_task do
  desc "my description"
  task :my_task => :environment do
    <...>
  end
end

but you can also drop :environment and manually upload the file with:

require_relative '../lib/your_path'

namespace :your_task do
  desc "my description"
  task :my_task do
    <...>
  end
end

Answer 2

All gems are loaded into memory when a rail application is initialized, so all objects are available in the code without additional libraries. The plug-in library model is a regular ruby ​​class, most likely you can get to it by the full path, for example. SuperGem::SuperAR::SuperModel
You need to read the api documentation of the gem or look at the source code to understand how it works.