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ActiveRecord Associations(2) - RORLab Season 3-8
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ActiveRecord Associations(2) - RORLab Season 3-8
1.
Active Record Associations (2) Ror
lab. season 3 - the 8th round - Jung 4, 2013 ChangHoon Jeong(@seapy)
2.
Product id Employee id Picture Polymorphic Picture employee_id product_id x
3.
Product id Employee id Polymorphic What about this
“Picture” model ? Picture employee_id product_id Picture product_id employee_id
4.
Polymorphic Picture Picture Employee Product id id Imageable Imageable id id imageable_id imageable_id :imageable_id :imageable_type :as =>
:imageable
5.
Polymorphic Model Class
6.
Polymorphic Migration
7.
Self Joins • ex.
: following or follower
8.
감사합니다.
9.
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