method

primary_key=

v4.2.7 - Show latest stable - Class: ActiveRecord::AttributeMethods::PrimaryKey::ClassMethods

primary_key=(value)

public

Sets the name of the primary key column.

class Project < ActiveRecord::Base
  self.primary_key = 'sysid'
end

You can also define the primary_key method yourself:

class Project < ActiveRecord::Base
  def self.primary_key
    'foo_' + super
  end
end

Project.primary_key # => "foo_id"

# File activerecord/lib/active_record/attribute_methods/primary_key.rb, line 120
        def primary_key=(value)
          @primary_key        = value && value.to_s
          @quoted_primary_key = nil
          @attributes_builder = nil
        end

primary_key=

Related methods