Laravel 2 个 BadMethodCallException 实例："int 不存在"和"方法不存在"

Question

我目前正在通过终端在Laravel中进行迁移，并且在尝试使用php artisan migrate时遇到这两个错误;我将在下面打印错误：

 BadMethodCallException  : Method IlluminateDatabaseSchemaBlueprint::int does not exist.
  at /Users/shaquilenoor/Desktop/chatapi/vendor/laravel/framework/src/Illuminate/Support/Traits/Macroable.php:100
     96|      */
     97|     public function __call($method, $parameters)
     98|     {
     99|         if (! static::hasMacro($method)) {
  > 100|             throw new BadMethodCallException(sprintf(
    101|                 'Method %s::%s does not exist.', static::class, $method
    102|             ));
    103|         }
    104| 
  Exception trace:
  1   IlluminateDatabaseSchemaBlueprint::__call("int")
      /Users/shaquilenoor/Desktop/chatapi/database/migrations/2019_01_29_045824_create_contacts_table.php:15
  2   CreateContactsTable::{closure}(Object(IlluminateDatabaseSchemaBlueprint))
      /Users/shaquilenoor/Desktop/chatapi/vendor/laravel/framework/src/Illuminate/Database/Schema/Builder.php:164

似乎这两个错误都源于我的CreateContactsTable，所以我将在下面打印该文件的代码：

use IlluminateSupportFacadesSchema;
use IlluminateDatabaseSchemaBlueprint;
use IlluminateDatabaseMigrationsMigration;
class CreateContactsTable extends Migration
{
    public function up()
    {
        Schema::create('contacts', function (Blueprint $table) {
            $table->increments('id');
            $table->unsignedInteger('user1_id');
            $table->unsignedInteger('user2_id');
            $table->int('room_id')->unique();
            $table->timestamps();
            $table->foreign('room_id')->references('id')->on('rooms');
            $table->foreign('user1_id')->references('id')->on('users');
            $table->foreign('user2_id')->references('id')->on('users');
        });
    }
    public function down()
    {
        Schema::dropIfExists('contacts');
    }
}

Answer 1

错误在行中：

$table->int('room_id')->unique();

没有int方法。您应该改用integer：

$table->integer('room_id')->unique();

Answer 2

将$table->int更改为$table->integer int因为该方法不存在