在 ROR 迁移期间将列类型从 Date 更改为 DateTime

2021-12-12 00:00:00 ruby-on-rails migration ruby mysql ruby-on-rails-3

我需要将我正在制作的应用程序的列类型从日期更改为日期时间.我不关心数据，因为它仍在开发中.

I need to change my column type from date to datetime for an app I am making. I don't care about the data as its still being developed.

我该怎么做?

推荐答案

首先在你的终端中:

rails g migration change_date_format_in_my_table

然后在您的迁移文件中:

Then in your migration file:

对于 Rails >= 3.2:

For Rails >= 3.2:

class ChangeDateFormatInMyTable < ActiveRecord::Migration
  def up
    change_column :my_table, :my_column, :datetime
  end

  def down
    change_column :my_table, :my_column, :date
  end
end

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