JSOM::Pagination

An easy to use JSON:API support for web applications.

Installation

Add this line to your application's Gemfile:

gem 'jsom-pagination'

And then execute:

$ bundle install

Or install it yourself as:

$ gem install jsom-pagination

Usage

For arrays

paginator = JSOM::Pagination::Paginator.new
collection = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
paginated = paginator.call(collection, params: { number: 2, size: 3 }, base_url: 'https://example.com')

For ActiveRecord collections

paginator = JSOM::Pagination::Paginator.new
collection = Article.published
paginated = paginator.call(collection, params: { number: 2, size: 3 }, base_url: 'https://example.com')

Meta data object

You can call meta on the paginated collection to easily get meta information about the paginated results

paginated.meta
# => #<JSOM::Pagination::MetaData total=10 pages=4>

paginated.meta.to_h
# => {:total=>10, :pages=>4}

Links object

You can call links on the paginated collection to easily get collection of pagination links for the client

paginated.links
# => #<JSOM::Pagination::Links:0x00007fdf5d0dd2b8 @url="https://example.com", @page=#<JSOM::Pagination::Page number=2 size=3>, @total_pages=4, @first="https://example.com?page[size]=3", @prev="https://example.com?page[size]=3", @self="https://example.com?page[number]=2&page[size]=3", @next="https://example.com?page[number]=3&page[size]=3", @last="https://example.com?page[number]=4&page[size]=3">

paginated.links.to_h
# => {
#   :first=>"https://example.com?page[size]=3",
#   :prev=>"https://example.com?page[size]=3",
#   :self=>"https://example.com?page[number]=2&page[size]=3",
#   :next=>"https://example.com?page[number]=3&page[size]=3",
#   :last=>"https://example.com?page[number]=4&page[size]=3"
# }

Rendering using fast_jsonapi

options = { meta: paginated.meta.to_h, links: paginated.links.to_h }
render json: serializer.new(paginated.items, options)

Development

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 tags, and push the .gem file to rubygems.org.

Contributing

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

License

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

Code of Conduct

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

EtienneDepaulis / jsom-pagination