ActiveRecord::JsonHasMany

Instead of keeping the foreign keys on the children, or in a many-to-many join table, let's keep them in a JSON array on the parent.

Usage

require "active_record/json_has_many"

ActiveRecord::Schema.define do
  create_table :parents do |t|
    t.text :child_ids
  end

  create_table :children
end

class Parent < ActiveRecord::Base
  json_has_many :children
end

This will add some familiar has_many-style methods:

parent.children? #=> false

parent.children = [Child.create!, Child.create!, Child.create!]
parent.children #=> [#<Child id: 1>, #<Child id: 2>, #<Child id: 3>]

parent.child_ids = [1,2]
parent.child_ids #=> [1,2]

parent.children? #=> true

Requirements

• Ruby 2.0+

Contributing

1. Fork it ( https://github.com/[my-github-username]/active_record-json_has_many/fork )
2. Create your feature branch (git checkout -b my-new-feature)
3. Commit your changes (git commit -am 'Add some feature')
4. Push to the branch (git push origin my-new-feature)
5. Create a new Pull Request