diff options
| -rw-r--r-- | activerecord/lib/active_record/associations.rb | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/activerecord/lib/active_record/associations.rb b/activerecord/lib/active_record/associations.rb index d6b8552e6e..60b7118d7e 100644 --- a/activerecord/lib/active_record/associations.rb +++ b/activerecord/lib/active_record/associations.rb @@ -17,7 +17,7 @@ module ActiveRecord class HasManyThroughAssociationPolymorphicSourceError < ActiveRecordError #:nodoc: def initialize(owner_class_name, reflection, source_reflection) - super("Cannot have a has_many :through association '#{owner_class_name}##{reflection.name}' on the polymorphic object '#{source_reflection.class_name}##{source_reflection.name}'.") + super("Cannot have a has_many :through association '#{owner_class_name}##{reflection.name}' on the polymorphic object '#{source_reflection.class_name}##{source_reflection.name}' without 'source_type'. Try adding 'source_type: \"#{reflection.name.to_s.classify}\"' to 'has_many :through' definition.") end end |