Class: ArelHash::Optimizer

Inherits:

Object

Object
ArelHash::Optimizer

show all

Defined in:: lib/arel_hash/optimizer.rb

Instance Method Summary collapse

#initialize(predicates = []) ⇒ Optimizer constructor

A new instance of Optimizer.
#optimize(arel_hash) ⇒ Object

Constructor Details

#initialize(predicates = []) ⇒ `Optimizer`

Returns a new instance of Optimizer.



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# File 'lib/arel_hash/optimizer.rb', line 3

def initialize(predicates = [])
  @predicates = predicates
end

Instance Method Details

#optimize(arel_hash) ⇒ `Object`

# File 'lib/arel_hash/optimizer.rb', line 7

def optimize(arel_hash)
  operator, value = ArelHash.singleton_tuple!(arel_hash)
  (i(and or).include?(operator)) ? optimize_collection_node(operator, value) : arel_hash
end