Laravel 5.4遷移錯誤

我做了一些遷移，當我嘗試遷移時出現錯誤。我不知道我犯了什麼錯，我是Laravel移民的新手。Laravel 5.4遷移錯誤

下面是我的移民文件

<?php 

use Illuminate\Support\Facades\Schema; 
use Illuminate\Database\Schema\Blueprint; 
use Illuminate\Database\Migrations\Migration; 

class CreateFavouritesTable extends Migration 
{ 
    /** 
    * Run the migrations. 
    * 
    * @return void 
    */ 
    public function up() 
    { 
     Schema::create('favourites', function (Blueprint $table) 
     { 
      $table->increments('id'); 
      $table->integer('user_id')->unsigned(); 
      $table->integer('name_id')->unsigned(); 
      $table->timestamps(); 
     }); 
     Schema::table('favourites', function(Blueprint $table) 
     { 
      $table->foreign('user_id')->references('id')->on('users')->onDelete('CASCADE'); 
      $table->foreign('name_id')->references('id')->on('names')->onDelete('CASCADE'); 
     }); 
    } 

    /** 
    * Reverse the migrations. 
    * 
    * @return void 
    */ 
    public function down() 
    { 
     Schema::dropIfExists('favourites'); 
     Schema::table('favourites', function(Blueprint $table) 
     { 
      $table->dropForeign(['user_id']); 
      $table->dropForeign(['name_id']); 
     }); 
    } 
}

`和的代碼時，我遷移，這是我得到的錯誤：

[Illuminate\Database\QueryException] 
    SQLSTATE[HY000]: General error: 1005 Can't create table `ugal`.`#sql-187c_52` (errno: 150 "Foreign key constraint is incorrectly formed") (SQL: alter table `favour 
    ites` add constraint `favourites_name_id_foreign` foreign key (`name_id`) references `names` (`id`) on delete CASCADE) 



    [PDOException] 
    SQLSTATE[HY000]: General error: 1005 Can't create table `ugal`.`#sql-187c_52` (errno: 150 "Foreign key constraint is incorrectly formed")

哪裏錯了，爲什麼呢？

來源

2017-03-12 Wolffyx

您應該在favourites表之前遷移表names。

來源

2017-03-12 15:53:05

Laravel 5.4遷移錯誤

回答

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