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petri_flow

0.05
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Petri Net Workflow Engine for Ruby.
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 Project Readme

Petri Flow Ruby Gem Testing

Workflow engine for Rails.

Features

  • Full petri net features support (seq, parallel, iterative, timed, automitic etc.)
  • Both approval workflow and business workflow.
  • Simple web admin for workflow definition and case management.
  • Build-in simple dynamic form.
  • Replaceable dynamic form.
  • Support sub workflow.
  • Graph screen for workflow definition.
  • Graph screen for case and token migration.
  • Powerful guard expression.
  • MySQL and Postgres Support.
  • Powerful assignment management.
  • Flexible integration of organizational structure system(role, group, position or department etc.)

Docs

Screenshots

iterative routing

parallel_routing

guard

case state graph

Installation

Add this line to your application's Gemfile:

gem 'petri_flow', require: 'wf'

And then execute:

$ bundle

Install graphviz

brew install graphviz

Migration:

bundle exec rake wf:install:migrations
bundle exec rails db:create
bundle exec rails db:migrate
bundle exec rails db:seed

Usage

Add wf_config:

# config/initializers/wf_config.rb
Wf.user_class = "::User"
Wf.org_classes = { group: "::Group" }

Set parties:

For normal org model, for example group or role etc.

module Wf
  class Group < ApplicationRecord
    has_many :users 
    include Wf::ActsAsParty
    acts_as_party(user: false, party_name: :name)
  end
end

For user model:

module Wf
  class User < ApplicationRecord
    belongs_to :group, optional: true
    include Wf::ActsAsParty
    acts_as_party(user: true, party_name: :name)
  end
end

then

bundle exec rails 

visit:

http://localhost:3000/wf

Testing

  • RAILS_ENV=test rake app:db:migrate && RAILS_ENV=test rake app:db:test:prepare && bundle exec rake test

Contributing

Contribution directions go here.

License

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