class CreateDevOpsLanguages < ActiveRecord::Migration[5.2] def change create_table :dev_ops_languages do |t| t.string :name, null: false, comment: 'The name of project language.' t.text :content, null: false, comment: 'The content of project language.' t.integer :usage_amount, default: 0, comment: 'number of people Using the language' t.timestamps end end end