Ruby on Rails latest stable (v5.2.3) - 1 note - Class: ActiveRecord::Base

Method deprecated or moved

This method is deprecated or moved on the latest stable version. The last existing version (v1.2.6) is shown here.

These similar methods exist in v5.2.3:

method_missing(method_id, *args, &block) private

Allows access to the object attributes, which are held in the @attributes hash, as were they first-class methods. So a Person class with a name attribute can use Person#name and Person#name= and never directly use the attributes hash — except for multiple assigns with ActiveRecord#attributes=. A Milestone class can also ask Milestone#completed? to test that the completed attribute is not nil or 0.

It’s also possible to instantiate related objects, so a Client class belonging to the clients table with a master_id foreign key can instantiate master through Client#master.

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February 25, 2010
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See documentation for the class method

Since Rails version 2, this instance method no longer exists.

You may be looking for its namesake class method, ActiveRecord::Base.method_missing