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references

references(*args)

Instance Public methods

Adds a reference. Optionally adds a type column, if :polymorphic option is provided. references and belongs_to are acceptable.

t.references(:user)
t.belongs_to(:supplier, polymorphic: true)

Links:

https://github.com/rails/rails/blob/758cbb8a2f0b63dd0ee5c5287e92c7276cfc6555/activerecord/lib/active_record/connection_adapters/abstract/schema_definitions.rb#L460

doc_ruby_on_rails

2015-06-20 00:00:00

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references references(*args) Instance Public methods Also aliased as: belongs_to