diff options
| -rw-r--r-- | activerecord/lib/active_record/associations/builder/association.rb | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/activerecord/lib/active_record/associations/builder/association.rb b/activerecord/lib/active_record/associations/builder/association.rb index 34684fd71a..456041cce8 100644 --- a/activerecord/lib/active_record/associations/builder/association.rb +++ b/activerecord/lib/active_record/associations/builder/association.rb @@ -1,6 +1,17 @@ # This is the parent Association class which defines certain class variables (valid_options) and # instance variables (model, name, scope, options, reflection) which would be common across all the associations that we known today in Rails.. # Every association need to have the values of these variables set and they are used at multiple places +# The heirarchy is defined as follows: +# Association +# - SingularAssociation +# - BelongsTo +# - HasOne +# - CollectionAssociation +# - HasMany +# - HasAndBelongsToMany +# +# The HasMany :Through association is a special case of HasMany association with the :through option set for it +# module ActiveRecord::Associations::Builder class Association #:nodoc: |