Sorty Sorter

This gem sorts AR collection when given a set of parameters that will be validated against the whitelisted attributes in the model.

Add this line to your application's Gemfile:

gem 'sorty_sorter'

And then execute:

$ bundle

Or install it yourself as:

$ gem install sorty_sorter

1. Define whitelist attributes to model:

   sort_with update_date: { updated_at: :desc },
             name: { name: :asc }

   In the example above, update_date is the exposed attribute and it represents the updated_at column in DB. The whitelist hash represents the "valid" attributes that may be sorted.

2. Call sorty_sort method:

   @collection.sorty_sort('name', 'asc')

There is also a bang method sorty_sort! that will raise an exception if you're doing anything wrong.

As mentioned, a definition of the whitelist hash should be done in the model.

# app/models/drone.rb

class Drone < ActiveRecord::Base
  # Define!
  sort_with update_date: { updated_at: :desc },
  points: { points: :asc },
  title: { name: :asc }
end

The outer Hash keys (i.e. update_date) represent the "exposed" attributes whereas their corresponding values (updated_at: :desc) represent the DB column name as the key, and its default sort direction in case there is no argument passed as the value.

Say you want to sort the collection based on name, the parameter title should be passed because that is the "exposed" attribute.

Since the gem already mixed in a method sorty_sort to the ActiveRecord::Relation, you can do the following conveniently:

Drone.all.sorty_sort('title', 'asc')

1. Fork it ( https://github.com/katpadi/sorty_sorter/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