php - "Unknown database type json requested, Doctrine\DBAL\Platforms\MySQL57Platform may not support it."运行 php artisan migrate 命令时

Question

当我运行时:

php artisan migrate

并希望将字符串字段修改为文本字段，如下所示:

//the old field that i want to modify in migration file
$table->string('description')->nullable();

//and the new text field
$table->text('description')->change();

我收到以下错误:

Unknown database type json requested, Doctrine\DBAL\Platforms\MySQL57Platform may not support it.

Answer 1

试试这个解决方案可能对你有用，

public function __construct()
{
    DB::getDoctrineSchemaManager()->getDatabasePlatform()->registerDoctrineTypeMapping('json', 'text');
}

有关此问题的进一步阅读，请查看 Issue #15772在 Laravel 仓库