class

ActiveStorage::Attachment

Inherits ActiveRecord::Base < Reference < Object

STI subclasses inherit the table name (explicit override or convention) from their model superclass (one level; deeper STI needs an explicit set_table_name). Intermediate abstract bases (ApplicationRecord) are not models — walk past them. STI shape: a non-abstract registered model superclass marks the class as single-table-inherited (abstract intermediates like ApplicationRecord do not).

Instance methods

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Source