QueryableCollection

QueryableCollection allows you to create a collection of objects and then query them based on a (user) defined set of queryable properties

Add this line to your application's Gemfile:

gem 'queryable_collection'

And then execute:

$ bundle

Or install it yourself as:

$ gem install queryable_collection

Create a list of Arbritrary objects

elements = [Employee.new(name: 'Mr Smith', age: 30), Employee.new(name: 'Mrs Wilson ', age: 45)]

Now define the attributes of that object which are queryable Note that the object must be able to respond when called with one of these attributes

queryable_attributes = %w(name age)

Now create a queryable collection

queryable_collection = QueryableCollection.create(elements, queryable_attributes)

You can now query this collection

queryable_collection.all # Returns all Employee objects
queryable_collection.first # Returns first Employee object
queryable_collection.where(name: 'Mr Smith') # Returns a QueryableCollection corresponding with the elements that meet the search criteria
queryable_collection.find_by(name: 'Mr Smith') #Returns appropriate Employee object
queryable_collection.empty? #Returns boolean
queryable_collection.to_a #Returns a copy of the original elements array

After checking out the repo, run bin/setup to install dependencies. Then, 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 to create a git tag for the version, push git commits and tags, and push the .gem file to rubygems.org.

1. Fork it ( https://github.com/sealink/queryable_collection/fork )
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 a new Pull Request