我刚刚开始学习PHP和Laravel 7，之前没有任何经验。我想我和Artisan之间有一些信任的问题, 我不知道为什么. :) 我到了播种步骤, 我面临一个错误, 我需要你的专业知识来解决. 以下是我在面临这个问题之前的步骤。
我创建产品控制器&模型
php artisan make:model Product -m -c -resource
数据库
class CreateProductsTable extends Migration
{
public function up()
{
Schema::create('products', function (Blueprint $table) {
$table->id();
$table->string('name', 100);
$table->string('image')->nullable();
$table->string('type');
$table->decimal('price', 2);
$table->text('description')->nullable();
$table->timestamps();
});
}
public function down()
{
Schema::dropIfExists('products');
}
}
型号
class Product extends Model
{
protected $table = 'product';
protected $fillable = ['name', 'image', 'type', 'price', 'description'];
}
控制器
class ProductController extends Controller
{
public function __construct()
{
$this->middleware('auth');
}
public function index()
{
$product = DB::table('products')->get();
}
}
AppServiceProvider
class AppServiceProvider extends ServiceProvider
{
public function register()
{
Schema::defaultStringLength(191);
}
}
之后，我创建了 产品表播种机
php artisan make:播种机 ProductTableSeeder
class ProductTableSeeder extends Seeder
{
public function run()
{
Product::insert([
'name' => 'iphone',
'type' => 'smart phone',
'price' => 1000.98,
'description' => 'Cillum sint dolore sint labori',
]);
Product::insert([
'name' => 'Galaxy',
'type' => 'tablets',
'price' => 2000.50,
'description' => 'Cillum sint dolore sint labori',
]);
Product::insert([
'name' => 'Sony',
'type' => 'TV',
'price' => 3000,
'description' => 'Cillum sint dolore sint labori',
]);
}
}
那时，叫播种机
class DatabaseSeeder extends Seeder
{
public function run()
{
// $this->call(UserSeeder::class);
$this->call(ProductTableSeeder::class);
}
}
那么 composer dump-autoload
最后，在输入播种命令
php artisan migrate:fresh --seed
我一直得到以下错误。
Dropped all tables successfully. Migration table created successfully. Migrating: 2014_10_12_000000_create_users_table Migrated: 2014_10_12_000000_create_users_table (0.51 seconds) Migrating: 2019_08_19_000000_create_failed_jobs_table Migrated: 2019_08_19_000000_create_failed_jobs_table (0.12 seconds) Migrating: 2020_04_13_063011_create_products_table Migrated: 2020_04_13_063011_create_products_table (0.18 seconds) Seeding: ProductTableSeeder Illuminate\Database\QueryException SQLSTATE[42S02]: Base table or view not found: 1146 Table 'e-commerce.product' doesn't exist (SQL: insert into `product`(
name,type,price,description)值（iphone，智能手机，1000.98，Cillum sint dolore sint labori））。at C:\wamp64\www\E-Commerce\vendor\laravel\framework\src\Illuminate\Database\Connection.php:671 667| // If an exception occurs when attempting to run a query, we'll format the error 668| // message to include the bindings with SQL, which will make this exception a 669| // lot more helpful to the developer instead of just the database's errors. 670| catch (Exception $e) { > 671| throw new QueryException( 672| $query, $this->prepareBindings($bindings), $e 673| ); 674| } 675| • A table was not found: You might have forgotten to run your migrations. You can run your migrations using `php artisan migrate`. https://laravel.com/docs/master/migrations#running-migrations 1 C:\wamp64\www\E-Commerce\vendor\laravel\framework\src\Illuminate\Database\Connection.php:458 PDOException::("SQLSTATE[42S02]: Base table or view not found: 1146 Table 'e-commerce.product' doesn't exist") 2 C:\wamp64\www\E-Commerce\vendor\laravel\framework\src\Illuminate\Database\Connection.php:458 PDO::prepare("insert into `product` (`name`, `type`, `price`, `description`) values (?, ?, ?, ?)")
本回答来自 @Ersoy
@KHA你要么把
$table属性，或像修改
protected $table = 'products';
帮我解决了这个问题，下面是解决方案。
在模型中，我在表名的末尾添加's'（忘了把它变成复数）。
<?php
namespace App;
use Illuminate\Database\Eloquent\Model;
class Product extends Model
{
protected $table = 'products'; //(forgot to make it plural)
protected $fillable = ['name','image','type','price','description',
];
}
控制器。
<?php
namespace App\Http\Controllers;
use App\Product;
use Illuminate\Support\Facades\DB;
use Illuminate\Http\Request;
class ProductController extends Controller
{
/**
* Create a new controller instance.
*
* @return void
*/
public function __construct()
{
//$this->middleware('auth');
}
/**
* Display a listing of the resource.
*
* @return \Illuminate\Http\Response
*/
public function index()
{
$prod = Product::paginate(20);
return view('allproducts');
// $products = [0=>['name'=>'iphone','category'=>'smart phone', 'price'=>1000,],
// 1=>['name'=>'Galaxy','category'=>'tablets', 'price'=>2000],
// 2=>['name'=>'Sony','category'=>'TV', 'price'=>3000]];
// return $products;
//return view('allproducts',compact('product'));
}
把价格的变量从十进制改为双数
public function up()
{
Schema::create('products', function (Blueprint $table) {
$table->id();
$table->string('name', 100);
$table->string('image')->nullable();
$table->string('type');
$table->double('price', 2);//change the variable
$table->text('description')->nullable();
$table->timestamps();
});
}
然后运行命令
php artisan migrate:refresh --seed
Rolling back: 2020_04_13_063011_create_products_table
Rolled back: 2020_04_13_063011_create_products_table (0.08 seconds)
Rolling back: 2019_08_19_000000_create_failed_jobs_table
Rolled back: 2019_08_19_000000_create_failed_jobs_table (0.06 seconds)
Rolling back: 2014_10_12_100000_create_password_resets_table
Rolled back: 2014_10_12_100000_create_password_resets_table (0.1 seconds)
Rolling back: 2014_10_12_000000_create_users_table
Rolled back: 2014_10_12_000000_create_users_table (0.08 seconds)
Migrating: 2014_10_12_000000_create_users_table
Migrated: 2014_10_12_000000_create_users_table (0.39 seconds)
Migrating: 2014_10_12_100000_create_password_resets_table
Migrated: 2014_10_12_100000_create_password_resets_table (0.52 seconds)
Migrating: 2019_08_19_000000_create_failed_jobs_table
Migrated: 2019_08_19_000000_create_failed_jobs_table (0.17 seconds)
Migrating: 2020_04_13_063011_create_products_table
Migrated: 2020_04_13_063011_create_products_table (0.12 seconds)
Seeding: ProductTableSeeder
Seeded: ProductTableSeeder (0.02 seconds)
Database seeding completed successfully.
我想工匠从一开始就不信任我是对的:)