Module: Mongoid::Extensions::Hash::CriteriaHelpers

Included in:
Hash
Defined in:
lib/mongoid/extensions/hash/criteria_helpers.rb

Overview

Expands complex criterion into mongodb selectors.

Instance Method Summary collapse

Instance Method Details

#expand_complex_criteria ⇒ Hash

Expand the complex criteria into a MongoDB compliant selector hash.

Examples:

Convert the criterion.

{}.expand_complex_criteria

Returns:

  • (Hash) —

    The mongo selector.

Since:

  • 1.0.0



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# File 'lib/mongoid/extensions/hash/criteria_helpers.rb', line 17

def expand_complex_criteria
  {}.tap do |hsh|
    each_pair do |k,v|
      case k
      when Mongoid::Criterion::Complex
        hsh[k.key] ||= {}
        hsh[k.key].merge!({"$#{k.operator}" => v})
      else
        hsh[k] = v
      end
    end
  end
end