数据库迁移文件如下
class CreateWorks < ActiveRecord::Migration
def change
create_table :works do |t|
t.integer :project_id
t.integer :user_id
t.datetime :datetimeperformed
t.decimal :hours, percision: 5, scale: 2
t.timestamps null: false
end
end
end
执行:
rake db:migrate
报错
Error adding decimal column: precision cannot be empty if scale is specified
不知道是什么原因,请帮忙看一下,谢谢!
해결되었습니다. 정밀도의 철자가 잘못되었습니다!