integer_hash

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Integer hashing based on Knuth's multiplicative hashing algorithm.

integer_hash 최신버젼 다운로드

최종 버전 다운로드 (.zip)

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# IntegerHash

[![Build Status](https://travis-ci.org/FlorinPopaCodes/integer_hash.svg?branch=master)](https://travis-ci.org/FlorinPopaCodes/integer_hash)
[![Code Climate](https://codeclimate.com/github/FlorinPopaCodes/integer_hash/badges/gpa.svg)](https://codeclimate.com/github/FlorinPopaCodes/integer_hash)
[![Test Coverage](https://codeclimate.com/github/FlorinPopaCodes/integer_hash/badges/coverage.svg)](https://codeclimate.com/github/FlorinPopaCodes/integer_hash/coverage)

A small Ruby gem that implements Knuth's multiplication hashing algorithm with the following properties: fast, reversable and zero collisions.

This is a port from PHP of the [jenssegers/optimus](https://github.com/jenssegers/optimus) package.

## Installation

Add this line to your application's Gemfile:

```ruby
gem 'integer_hash'
```

And then execute:

$ bundle

Or install it yourself as:

$ gem install integer_hash

## Configure

Write the defaults taken from `IntegerHash::Generator.generate_configuration` in `config/initializers/integer_hash.rb`:

```ruby
IntegerHash.configure do |config|
  config.prime =
  config.inverse_integer =
  config.random_integer =
end
```

## Usage

```ruby
$ IntegerHash.encode(42)
=> 1591777047
$ IntegerHash.decode(1591777047)
=> 42
```

## Alternatives

There are only two alternatives to this gem written in Ruby. ['hashids'](https://github.com/peterhellberg/hashids.rb) gem and ['obfuscate_id'](https://github.com/namick/obfuscate_id) gem which both offer the same main feature: encoding integers so that you don't expose database ids to the user.

## 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](https://rubygems.org).

## Contributing

Bug reports and pull requests are welcome on GitHub at https://github.com/FlorinPopaCodes/integer_hash.

## License

The gem is available as open source under the terms of the [MIT License](http://opensource.org/licenses/MIT).

integer_hash

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