Set Primary Key In Rails Migration

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Mar 6, 2015. With Rails(4.2.5) and mysql2(0.4.3), I am not able to set bigint(20) as primary key using following migration without using.

Composite Primary Keys Ah. primary keys. such a topic! When discussing what columns to define as a primary key in your data models, two large points always tend.

Apr 9, 2012. Don't do this. Use the built-in id field as the primary key. If you're going to use Rails, you should build your app the "Rails way" unless you have.

Jan 22, 2011. Anyway you're getting the most out of Rails while you're sticking to its conventions. Changing primary key name and type might not be a very.

Apr 18, 2014. According to Postgres doc, PRIMARY_KEY constraint is a combination of a. class CreateProducts < ActiveRecord::Migration def change.

Changing the Primary Key Type in Ruby on Rails Models – Oliver. – Sep 30, 2013. The first step to changing the primary key involves the migration file. this asks Rails not to create a primary key column on your behalf.

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