Module: ActsAsRecursiveTree::Builders::Strategy::Join

Defined in:
lib/acts_as_recursive_tree/builders/strategy/join.rb

Overview

Build a relation using an INNER JOIN.

Class Method Summary collapse

Class Method Details

.apply_order(builder, relation) ⇒ Object 



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# File 'lib/acts_as_recursive_tree/builders/strategy/join.rb', line 26

def self.apply_order(builder, relation)
  return relation unless builder.ensure_ordering
  relation.order(builder.recursive_temp_table[builder.depth_column].asc)
end

.build(builder) ⇒ ActiveRecord::Relation

Builds the relation.

Parameters:

Returns:

  • (ActiveRecord::Relation) 


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# File 'lib/acts_as_recursive_tree/builders/strategy/join.rb', line 13

def self.build(builder)
  final_select_mgr = builder.base_table.join(
    builder.create_select_manger.as(builder.recursive_temp_table.name)
  ).on(
    builder.base_table[builder.primary_key].eq(builder.recursive_temp_table[builder.primary_key])
  )

  relation = builder.klass.joins(final_select_mgr.join_sources)

  relation = apply_order(builder, relation)
  relation
end