Laravel雄辩节省关系模型失败

Question

我有Laravel口才一流Collage

class Collage extends Model 
{ 

    /** 
    * Get the User that owns this Collage. 
    */ 
    public function user() 
    { 
     return $this->belongsTo('App\User'); 
    } 
} 

拼贴迁移模式

Schema::create('collages', function (Blueprint $table) { 
      $table->increments('id'); 
      $table->integer('user_id')->unsigned(); 
      $table->string('name')->nullable(); 
      $table->timestamps(); 
     }); 

和User

class User extends Authenticatable 
{ 
    /** 
    * Get all Collages that belongs to this User. 
    */ 
    public function collages() 
    { 
     return $this->hasMany('App\Collage'); 
    } 
} 

但是当我做这个鼓捣

$user = App\User::find(1)->first(); 
$collage = new App\Collage; 
$collage->name = 'Collage'; 
$collage->user = $user; 

//and save 
$collage->save(); 

抛出我的错误QueryException

General error: 1 table collages has no column named user 

Answer 1

变化

$collage->user = $user 

要

$collage->user_id = $user->id 

Answer 2

更新您的模式，使关系，

Schema::create('collages', function (Blueprint $table) { 
    $table->increments('id'); 
    $table->integer('user_id')->unsigned(); 
    $table->foreign('user_id')->references('id')->on('users'); 
    $table->string('name')->nullable(); 
    $table->timestamps(); 
}); 

这样Laravel雄辩会自动作出的关系引用。