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Provides haversine formula, implemented with Arel; which could be added to ActiveRecord scope, for instance.
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 Dependencies

Development

~> 1.3
>= 0
>= 0
>= 0
~> 2.11

Runtime

 Project Readme

Arel::Haversine

Build Status Code Climate

Provides haversine formula, implemented with Arel.

Installation

Add this line to your application's Gemfile:

gem 'arel-haversine'

And then execute:

$ bundle

Or install it yourself as:

$ gem install arel-haversine

Usage

require 'arel/haversine'

class Location < ActiveRecord::Base
  def self.in_order_of_proximity_to(latitude, longitude)
    order(
      Arel::Haversine.new(
        arel_table[:latitude],
        arel_table[:longitude],
        latitude,
        longitude
      )
    )
  end
end

Contributing

  1. Fork it
  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 new Pull Request