/ Ruby on Rails
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method

primary_key

rails latest stable - Class: ActiveRecord::Base

Method deprecated or moved

This method is deprecated or moved on the latest stable version. The last existing version (v2.3.8) is shown here.

primary_key()
public

Defines the primary key field — can be overridden in subclasses. Overwriting will negate any effect of the primary_key_prefix_type setting, though.