Warped

Develop rails applications at the speed of thought. Warped is a collection of tools and utilities that make it easier to develop rails applications.

Install the gem and add to the Rails application's Gemfile by executing:

$ bundle add warped

Then run the generator to create the configuration file:

$ rails generate warped:install

The generator will create a file at config/initializers/warped.rb with the default configuration.

Warped provides utilities for making it easier to develop rails applications. The utilities are organized into modules and can be used by including the module in the class that needs the utility. The utilities are organized in concepts used by most rails applications:

• Controllers
• Services
• Jobs

The Warped::Controllers module defines five concerns that can be included in a controller to provide additional functionality:

• Warped::Controllers::Filterable
• Warped::Controllers::Searchable
• Warped::Controllers::Sortable
• Warped::Controllers::Paginatable
• Warped::Controllers::Tabulatable

The Filterable concern provides a method to filter the records in a controller's action. The method filterable_by is used to define the filterable fields and the filter method to use.

class UsersController < ApplicationController
  include Warped::Controllers::Filterable

  filterable_by :name, :email, :created_at

  def index
    users = filter(User.all)
    render json: users
  end
end

The filter method will use the query parameters to filter the records. For example, to filter the users by name, email, and created_at, the following query parameters can be used:

GET /users?name=John
GET /users?email=john@example.com
GET /users?created_at=2021-01-01

Complete documentation for Warped::Controllers::Filterable.

The Searchable concern provides a method to search the records in a controller's action.

By default it calls the scope search on the model, and uses the query parameter q to search the records.

# app/models/user.rb
class User < ApplicationRecord
  # You can define your own search scope and use standard sql
  # scope :search, ->(query) { where('name LIKE ?', "%#{query}%") }

  # Or use pg_search
  include PgSearch::Model
  pg_search_scope :search, against: [:name, :email]
end

# app/controllers/users_controller.rb
class UsersController < ApplicationController
  include Warped::Controllers::Searchable

  def index
    users = search(User.all)
    render json: users
  end
end

Request examples:

GET /users?q=John
# calls #search(User.all, search_term: 'John', model_search_scope: :search) in the controller

Complete documentation for Warped::Controllers::Searchable.

The Sortable concern provides a method to sort the records in a controller's action.

The method sortable_by is used to define the sortable fields.

class UsersController < ApplicationController
  include Warped::Controllers::Sortable

  sortable_by :name, :created_at

  def index
    users = sort(User.all)
    render json: users
  end
end

This will use the query parameter sort_key and sort_direction to sort the records.

• The default sort direction is desc.
• The default sort key is :id.

Example requests:

GET /users?sort_key=name # sort by name in descending order
GET /users?sort_key=created_at&sort_direction=asc # sort by created_at in ascending order

When calling sort in a controller action, and the sort parameters are not provided, the default sort key and direction will be used.

class UsersController < ApplicationController
  include Warped::Controllers::Sortable

  sortable_by :name, :created_at

  def index
    users = sort(User.all)
    render json: users
  end
end

Request examples:

GET /users # sort by id in descending order

Complete documentation for Warped::Controllers::Sortable.

The Pageable concern provides a method to paginate the records in a controller's action.

The method paginate is used to paginate the records. It will use the query parameters page and per_page to paginate the records.

class UsersController < ApplicationController
  include Warped::Controllers::Pageable

  def index
    users = paginate(User.all)
    render json: users, meta: pagination
  end
end

Request examples:

GET /users?page=1&per_page=10 # returns the first page of users with 10 records per page
GET /users?per_page=25 # returns the first page of users with 25 records per page
GET /users?page=2&per_page=25 # returns the second page of users with 25 records per page

Complete documentation for Warped::Controllers::Pageable.

The Tabulatable concern provides a method to filter, sort, search, and paginate the records in a controller's action.

The method tabulate is used to filter, sort, search, and paginate the records. So, in the case that the controller action needs to filter, sort, search, and paginate the records, the tabulate method can be used.

The tabulatable concern provides the tabulatable_by method, which passes the values to filterable_by and sortable_by.

class UsersController < ApplicationController
  include Warped::Controllers::Tabulatable

  tabulatable_by :name, :email, :created_at

  def index
    users = tabulate(User.all)
    render json: users, meta: pagination
  end
end

Request examples:

GET /users?age[]=18&age[]=30&age.rel=between&sort_key=name&sort_direction=asc&q=John&page=2&per_page=10
# returns the second page of users with 10 records per page, where the age is between 18 and 30, sorted by name in ascending order, and searched by the term John

Just like paginate, when calling the tabulate method in the controller action, the pagination method can be used to access the pagination information.

Complete documentation for Warped::Controllers::Tabulatable.

The gem provides a Warped::Service::Base class that can be used to create services in a rails application.

class PrintService < Warped::Service::Base
  def call
    puts 'Hello, world!'
  end
end

The call method is the entry point for the service. It can be overridden to provide the service's functionality.

class PrintService < Warped::Service::Base
  def call
    puts "Hello, #{name}!"
  end

  private

  def name
    'world'
  end
end

The way of calling the service is by calling the call method on the service class. The .call method is a class method that creates a new instance of the service, passing the arguments to the initialize method, and then calls the call method on the new instance.

PrintService.call # Executes new.call

If you want to pass arguments to the service, you can so by defining the initialize method in the service class.

class PrintService < Warped::Service::Base
  def initialize(name = 'John')
    @name = name
  end

  def call
    puts "Hello, #{@name}!"
  end
end

PrintService.call # Executes new.call, prints "Hello, John!"
PrintService.call('world') # Executes new('world').call, prints "Hello, world!"

Complete documentation for Warped::Services.

The gem provides a Warped::Jobs::Base class that can be used to create background jobs in a rails application.

class PrintJob < Warped::Jobs::Base
  def perform
    puts 'Hello, world!'
  end
end

Warped::Jobs::Base is a subclass of ActiveJob::Base, and can be used as a regular ActiveJob job.

The superclass can be overriden to inherit from a different job class, by changing it in the config/initializers/warped.rb file.

# config/initializers/warped.rb
Warped.configure do |config|
  config.job_superclass = 'ApplicationJob'
end

Complete documentation for Warped::Jobs.

After checking out the repo, run bin/setup to install dependencies. Then, run rake spec to run the tests. You can also run bin/console for an interactive prompt that will allow you to experiment.

To install this gem onto your local machine, run bundle exec rake install. To release a new version, update the version number in version.rb, and then run bundle exec rake release, which will create a git tag for the version, push git commits and the created tag, and push the .gem file to rubygems.org.

Bug reports and pull requests are welcome on GitHub at https://github.com/gogrow-dev/warped. This project is intended to be a safe, welcoming space for collaboration, and contributors are expected to adhere to the code of conduct.

The gem is available as open source under the terms of the MIT License.

Everyone interacting in the Warped project's codebases, issue trackers, chat rooms and mailing lists is expected to follow the code of conduct.