How can I create non-null columns in laravel 5.7 by migrating?
$table->string('title','50')->nullable();
does not work.
What can I do?
doutu4335
2018-11-19 19:04浏览 37
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如何通过迁移在laravel 5.7中创建非空列？
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- doudian6229 2018-11-19 19:11已采纳
When you migrate to add a column to a table that already has records, you will need to make it nullable, or at least give it a default. Otherwise what would the value be for all of your current records?
Worst case scenario if you have no default value, make it nullable. Then go through and set the value for each one, then remove the nullable.
Your second migration (to remove nullability) would be like this:
$table->string('title','50')->nullable(false)->change();评论解决 无用打赏举报分享