Origin Selectable extensions
For generating more dynamic queries with Mongoid :)
Usage
gem 'origin-selectable_ext'
Or include in .gemspec
file as dependency ;)
Example usage
From the money-mongoid
gem (also used in Timespan)
class Money
class << self
def custom_serialization?(operator)
return false unless operator
case operator
when "$gte", "$gt", "$lt", "$lte"
true
else
false
end
end
def custom_specify(name, operator, value, = {})
money = value.__evolve_to_money__
case operator
when "$gte", "$gt", "$lt", "$lte"
specify_with_multiple_currencies(name, operator, money, )
else
raise RuntimeError, "Unsupported operator"
end
end
def custom_between(field, value, = {})
{ "$gte" => ::Money.new(value.min, value.iso_code), "$lte" => ::Money.new(value.max, value.iso_code) }
end
def custom_between? field, value
true
end
private
def specify_with_multiple_currencies(name, operator, value, )
currencies = [value.currency.iso_code]
currencies.concat [:compare_using] if && [:compare_using]
multiple_money_values = value.exchange_to_currencies(currencies.to_set)
subconditions = multiple_money_values.collect {|money| specify_with_single_currency(name, operator, money)}
if subconditions.count > 0
{"$or" => subconditions}
else
subconditions[0]
end
end
def specify_with_single_currency(name, operator, value)
{"#{name}.cents" => {operator => value.cents}, "#{name}.currency_iso" => value.currency.iso_code}
end
end
end
See https://github.com/mongoid/origin/issues/47 for more details.
Contributing to origin-selectable_ext
- Check out the latest master to make sure the feature hasn't been implemented or the bug hasn't been fixed yet.
- Check out the issue tracker to make sure someone already hasn't requested it and/or contributed it.
- Fork the project.
- Start a feature/bugfix branch.
- Commit and push until you are happy with your contribution.
- Make sure to add tests for it. This is important so I don't break it in a future version unintentionally.
- Please try not to mess with the Rakefile, version, or history. If you want to have your own version, or is otherwise necessary, that is fine, but please isolate to its own commit so I can cherry-pick around it.
Copyright
Copyright (c) 2012 Kristian Mandrup. See LICENSE.txt for further details.