Flowdock
method

primary_key=

Importance_1
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"
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