lsylvester/predicator

ActiveRecord::ColumnWhereChain

Adds column based query chains to ActiveRecord

Installation

Add this line to your application's Gemfile:

gem 'active_record-column_where_chain'

And then execute:

$ bundle

Or install it yourself as:

$ gem install active_record-column_where_chain

Usage

ActiveRecord::ColumnQueryChain exposes Arel Predicates to the Active Record query api.

MyModel.where(:my_column).matches("%SomeValue%") #=> SELECT * from my_models where my_column like '%SomeValue'
MyModel.where(:my_column).gt(10) #=> SELECT * from my_models where my_column > 10

Or you can define your own predicates.

class MyModel < ActiveRecord::Base
  predicate :starts_with do |column, value|
    column.matches("#{value}%")
  end
end

MyModel.where(:my_column).starts_with("Bar")

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