在Laravel迁移中使列不可为空 [英] Make column not nullable in a Laravel migration

问题描述

我正在编写一个迁移，以使表nullable中的某些列现在正确.对于down函数，我当然想再次使这些列成为not nullable.我浏览了架构生成器文档，但找不到实现此目的的方法.

I'm writing a migration to make certain columns in a table nullable right now. For the down function, I of course want to make those columns not nullable again. I looked through the schema builder docs, but couldn't see a way to do this.

任何帮助将不胜感激.

推荐答案

在Laravel 5之前，还没有使用架构生成器来更改现有表列的Laravel本机方式.您需要为此使用原始查询.

Prior to Laravel 5 there was no Laravel native way of altering an existing table column using the schema builder. You'd need to use raw queries for this.

但是，从Laravel 5开始，您可以使用:

However, as of Laravel 5 you can use:

$table->...->nullable(false)->change();

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