Answers for "how to handle data migration in rails"

1

using SQL in rails migration

def change
  execute <<-SQL
    UPDATE table1
    SET column1 = "value"
  SQL
end
Posted by: Guest on January-14-2021
0

rails migration populate data

class AddSystemSettings < ActiveRecord::Migration
 	def change
      create_table :system_settings do |t|
        t.string  :name       
        t.integer  :position
      end

      # populate the table
      SystemSetting.create :name => "notice"
    end
  end
Posted by: Guest on March-19-2021

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