Module: ActiveScaffold::OuterJoins

Extended by:
ActiveSupport::Concern
Defined in:
lib/active_scaffold/extensions/left_outer_joins.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Instance Attribute Details

#outer_joins_values ⇒ Object

Returns the value of attribute outer_joins_values.



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# File 'lib/active_scaffold/extensions/left_outer_joins.rb', line 4

def outer_joins_values
  @outer_joins_values
end

Instance Method Details

#build_arel ⇒ Object 



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# File 'lib/active_scaffold/extensions/left_outer_joins.rb', line 45

def build_arel
  if outer_joins_values.empty?
    super
  else
    relation = except(:outer_joins)
    join_dependency = ActiveRecord::Associations::JoinDependency.new(@klass, outer_joins_values, [])
    join_dependency.join_associations.each do |association|
      relation = association.join_relation(relation)
    end
    relation.build_arel
  end
end

#outer_joins(*args) ⇒ Object 



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# File 'lib/active_scaffold/extensions/left_outer_joins.rb', line 11

def outer_joins(*args)
  return self if args.compact.blank?

  relation = clone

  args.flatten!
  relation.joins_values += [''] # HACK: for using outer_joins in update_all/delete_all
  relation.outer_joins_values += args

  relation
end

#outer_joins!(*args) ⇒ Object 



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# File 'lib/active_scaffold/extensions/left_outer_joins.rb', line 37

def outer_joins!(*args)
  self.joins_values += [''] # HACK: for using outer_joins in update_all/delete_all
  self.outer_joins_values += args
  self
end