module JSONAPI::ActiveRelation::Adapters::JoinLeftActiveRecordAdapter

Public Instance Methods

join_left(*columns)
Alias for: joins_left
joins_left(*columns) click to toggle source

Extends left_joins functionality to rails 4, and uses the same logic for rails 5.0.x and 5.1.x The default left_joins logic of rails 5.2.x is used. This results in and extra join in some cases. For example Post.joins(:comments).joins_left(comments: :author) will join the comments table twice, once inner and once left in 5.2, but only as inner in earlier versions.

# File lib/jsonapi/active_relation/adapters/join_left_active_record_adapter.rb, line 10
def joins_left(*columns)
  if Rails::VERSION::MAJOR >= 6 || (Rails::VERSION::MAJOR >= 5 && ActiveRecord::VERSION::MINOR >= 2)
    left_joins(columns)
  else
    join_dependency = ActiveRecord::Associations::JoinDependency.new(self, columns, [])
    joins(join_dependency)
  end
 end
Also aliased as: join_left