Class: ActiveRecord::PredicateBuilder::RelationHandler

Inherits:
Object
  • Object
show all
Defined in:
activerecord/lib/active_record/relation/predicate_builder/relation_handler.rb

Overview

:nodoc:

Instance Method Summary collapse

Instance Method Details

#call(attribute, value) ⇒ Object 



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# File 'activerecord/lib/active_record/relation/predicate_builder/relation_handler.rb', line 6

def call(attribute, value)
  if value.eager_loading?
    value = value.send(:apply_join_dependency)
  end

  if value.select_values.empty?
    if value.klass.composite_primary_key?
      raise ArgumentError, "Cannot map composite primary key #{value.klass.primary_key} to #{attribute.name}"
    else
      value = value.select(value.table[value.klass.primary_key])
    end
  end

  attribute.in(value.arel)
end