Class: BabySqueel::JoinExpression

Inherits:
Object
  • Object
show all
Includes:
Polyamorous::TreeNode
Defined in:
lib/baby_squeel/join_expression.rb

Overview

This is the thing that gets added to Active Record’s joins_values. By including Polyamorous::TreeNode, when this instance is found when traversing joins in ActiveRecord::Associations::JoinDependency::walk_tree, JoinExpression#add_to_tree will be called.

Instance Method Summary collapse

Constructor Details

#initialize(associations) ⇒ JoinExpression

Returns a new instance of JoinExpression.



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# File 'lib/baby_squeel/join_expression.rb', line 9

def initialize(associations)
  @associations = associations
end

Instance Method Details

#add_to_tree(hash) ⇒ Object

Each individual association object knows how to build a Polyamorous::Join. Those joins will be added to the hash incrementally.



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# File 'lib/baby_squeel/join_expression.rb', line 16

def add_to_tree(hash)
  @associations.inject(hash) do |acc, assoc|
    assoc.add_to_tree(acc)
  end
end