Make column not nullable in a Laravel migration
PhpSqlDatabase MigrationLaravelPhp Problem Overview
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.
Any help would be appreciated.
Php Solutions
Solution 1 - Php
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.
However, as of Laravel 5 you can use:
$table->string('foo')->nullable(false)->change();
You must have the dbal dependency prior to running the above command:
composer require doctrine/dbal
Solution 2 - Php
As of Laravel 5 it's possible to reverse this by passing false as an argument to nullable
.
$table->string('foo')->nullable(false)->change();
Solution 3 - Php
First run this:
composer require doctrine/dbal
Then create a migration that will alter the table like so:
php artisan make:migration fix_whatever_table_name_here
public function up()
{
Schema::table('table_name', function (Blueprint $table) {
$table->type('column')->nullable(false)->change();
});
}
# Optional:
# public function down()
# {
# Schema::table('table_name', function ($table) {
# $table->type('column')->nullable()->change();
# });
# }
Solution 4 - Php
You can just declare the column again without ->nullable() and use ->change
public function up()
{
Schema::table('table_name', function (Blueprint $table) {
$table->type('column')->change();
});
}
public function down()
{
Schema::table('table_name', function ($table) {
$table->type('column')->nullable()->change();
});
}
Solution 5 - Php
In laravel 8, you just have to put this: "->nullable()"
$table->string('name')->nullable();