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Posted By

chrisaiv on 10/27/08


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rails ruby migrations


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Rails: Force Migration

 / Published in: Ruby
 

Suppose you already have a database with a table named candy and now you want to start using migrations. If you try to run a migration with a pre-existing table, Rails will error. So by placing :force => true, you are forcefully wiping the table. After you've performed your migration, you normally want to return the Boolean to false.

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  1. class CreateCandy < ActiveRecord::Migration
  2.   def self.up
  3.     create_table :candies, :force => true do |t|
  4.       t.string :name
  5.       t.string :type
  6.  
  7.       t.timestamps
  8.     end
  9.   end
  10.  
  11.   def self.down
  12.     drop_table :candies
  13.   end
  14. end

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