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method

inherited

Importance_0
Ruby on Rails latest stable (v5.2.3) - 0 notes - Class: ActiveRecord::Migration
inherited(subclass) public

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# File activerecord/lib/active_record/migration.rb, line 525
    def self.inherited(subclass) # :nodoc:
      super
      if subclass.superclass == Migration
        raise StandardError, "Directly inheriting from ActiveRecord::Migration is not supported. "            "Please specify the Rails release the migration was written for:\n"            "\n"            "  class #{subclass} < ActiveRecord::Migration[4.2]"
      end
    end
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