Question

我尝试将数据播种到数据库中的表时出错。我有2个表：作者和书籍。该表具有使用ORM的关系。但是，当我尝试使用

执行它时

php artisan migrate：refresh --seed

我收到了这个错误：

无法找到四位数数据丢失。

这是我的代码

我的模特“作者”：

<?php

namespace App;

use Illuminate\Database\Eloquent\Model;

class Author extends Model
{
protected $fillable = ['name'];

public function books(){
    return $this->hasMany('App\Book');
}
}

模型“书籍”：

 <?php

namespace App;

use Illuminate\Database\Eloquent\Model;

class Book extends Model
{
protected $fillable = ['name','author_id','amount'];

public function author(){

return $this->belongsTo('App\Author');

}
}

我的播种代码：

<?php

use Illuminate\Database\Seeder;
use App\Author;
use App\Book;

class BooksSeeder extends Seeder
{
/**
 * Run the database seeds.
 *
 * @return void
 */
public function run()
{
    $author1 = Author::create(['Muhammad Ariel Purnama']);
    $author2 = Author::create(['Titania Eka Yuliandini']);
    $author3 = Author::create(['Shikaku kookokokoko']);

    $book1 = Book::create(['title' => 'goood boy', 'amount' => 3, 'author_id' => $author1->id]);
    $book2 = Book::create(['title' => 'life observer', 'amount' => 4,'author_id' => $author2->id]);
    $book3 = Book::create(['title' => 'Blekok Borokokko', 'amount' => 2, 'author_id' => $author3->id]);

}
}

和我的DatabaseSeeder代码：

<?php

use Illuminate\Database\Seeder;

class DatabaseSeeder extends Seeder
{
/**
 * Run the database seeds.
 *
 * @return void
 */
public function run()
{
    $this->call(PostsTableSeeder::class);
    $this->call(UsersSeeder::class);
    $this->call(BooksSeeder::class);
}
}

谢谢你的关注。

Answer 1

使用时应使用正确的字段名称，并输入正确的密钥：

<preference name="KeyboardDisplayRequiresUserAction" value="false"/>

仔细检查您的图书表格列是$author1 = Author::create(['name'=>'Muhammad Ariel Purnama']); //use name key $author2 = Author::create(['name'=>'Titania Eka Yuliandini']); //use name key $author3 = Author::create(['name'=>'Shikaku kookokokoko']); //use name key $book1 = Book::create(['name' => 'goood boy', 'amount' => 3, 'author_id' => $author1->id]); //replace title for name $book2 = Book::create(['name' => 'life observer', 'amount' => 4,'author_id' => $author2->id]); //replace title for name $book3 = Book::create(['name' => 'Blekok Borokokko', 'amount' => 2, 'author_id' => $author3->id]); //replace title for name还是title，然后在模型和种子中进行调整。

Laravel 5.3播种

1 个答案: