ActiveHash::Like

Custom matcher for ActiveHash. It provides like operator.

Usage

After install ActiveHash::Like, you can use like method.

class Country < ActiveHash::Base; end

Country.like(name: 'Cana%')

If you want to use like in the where method parameter, you can use ActiveHash::Match::Like matcher.

# Specify match type.
Country.where(name: ActiveHash::Match::Like.new('Cana%'))

# Or use forward, backward, partial method.
Country.where(name: ActiveHash::Match::Like.forward('Cana'))

Custom matcher

ActiveHash::Match::Like is one of custom matcher. You can create your custom matcher. It should have call method like the following:

class MyCustomMatcher
  attr_accessor :pattern

  def initialize(pattern)
    self.pattern = pattern
  end

  def call(value)
    # Case ignore matcher
    value.upcase == pattern.upcase
  end
end

Country.where(name: MyCustomMatcher.new('pattern'))

So, you can use Proc object as simple custom matcher.

Country.where(name: ->(value){ value == 'some value'})

OR condition

you can use key: or like the following:

Country.where(name: 'Canada', or: {field1: 'foo', field2: 'bar'})
#=> name = 'Canada' and (field1 = 'foo' or field2 = 'bar')

If you want to use or to one column, you must use custom matcher.

Country.where(name: ->(val){val == 'Canada' || val == 'US'})

Installation

Add this line to your application's Gemfile:

gem 'active_hash-like'

And then execute:

$ bundle

Or install it yourself as:

$ gem install active_hash-like

Development

After checking out the repo, run bin/setup to install dependencies. Then, run rake test 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/[USERNAME]/active_hash-like.

License

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