Listable collections

Makes collections accessible from a string list in rails.

We did this gem to:

• Easily manage collections from input text field.
• Track changes like dirty module in activerecord.
• Have callbacks like has_many associations.
• Automatically handle join models creation/deletion.

Put this line in your Gemfile:

gem 'listable_collections'

Then bundle:

$ bundle

If you want to listize a has_many association:

class Product < ApplicationRecord

  has_many :tagizations
  has_many :tags, through: :tagizations

  listize :tags, by: :name

end

Associated records will be synced and chances will be tracked using the following helpers:

product.tags.map(&:name) => ['New']
product.tag_list => 'New'

product.tag_list = 'Natural'
product.tagizations.reject(&:marked_for_destruction?).map(&:tag).map(&:name) => ['Natural']
product.tagizations.select(&:marked_for_destruction?).map(&:tag).map(&:name) => ['New']

product.added_tags_to_list => ['Natural']
product.removed_tags_from_list => ['New']

NOTE: All associations are assumed to be has many through to be able to handle creations/deletions.

If you want to list an array attribute:

class Product < ActiveRecord::Base

  serialize :sizes, Array

  listize :sizes

end

The attribute will be synced and chances will be tracked using the following helpers:

product.sizes => ['64GB']
product.size_list => '64GB'

product.size_list = '32GB,128GB'
product.sizes => ['32GB','128GB']

product.added_sizes_to_list => ['128GB']
product.removed_sizes_from_list => ['64GB']

Any issue, pull request, comment of any kind is more than welcome!

We will mainly ensure compatibility to Rails, AWS, PostgreSQL, Redis, Elasticsearch and FreeBSD. 

This gem is maintained and funded by museways.

It is free software, and may be redistributed under the terms specified in the MIT-LICENSE file.