kaushikjha/has_many_relations_sample

save has_many relations using fields_for and accepts_nested_attributes_for

What's this ?

sample application for saving has_many relations.

In this application, Post has_many Tags through Taggings. When you save tagged post via web interface, taggings are automatically saved. It uses accepts_nested_attributes_for and fields_for.

See more on API references:

• http://api.rubyonrails.org/classes/ActiveRecord/NestedAttributes/ClassMethods.html
• http://api.rubyonrails.org/classes/ActionView/Helpers/FormHelper.html#method-i-fields_for

How to run ?

• bundle
• rake db:migrate
• rails server
• open http://localhost:3000/tags and create tags
• open http://localhost:3000/posts and create posts

How to create erd diagram ?

• install some softwares along http://rails-erd.rubyforge.org/install.html
• rake erd attributes=foreign_keys,timestamps,inheritance,content
• open ERD.pdf