我创建了一个资源控制器（CRUD）来管理产品，关于更新，删除工作的好。但是CREATE不起作用。我需要具体说明每个产品都有作者关系和类别关系。
错误：
SQLSTATE [23000]：完整性约束违规：1452无法添加或 更新子行：外键约束失败（
2016。products， 约束products_user_id_foreign外键（user_id） 参考users（id）ON DELETE CASCADE）（SQL：insert intoproducts（updated_at，created_at）值（2016-05-10 18:34:38， 2016-05-10 18:34:38））
PRODUCTCONTROLLER.PHP
namespace dixard\Http\Controllers\Admin;
use Illuminate\Http\Request;
use dixard\Http\Requests;
use dixard\Http\Controllers\Controller;
use dixard\Product;
use dixard\Category;
use dixard\User;
// ci serve per validare
use Validator;
class ProductController extends Controller
{
/**
* Display a listing of the resource.
*
* @return \Illuminate\Http\Response
*/
public function index()
{
$products = Product::orderBy('id', 'desc')->paginate(20);
return view('admin.product.index', compact('products'));
}
/**
* Show the form for creating a new resource.
*
* @return \Illuminate\Http\Response
*/
public function create()
{
//prendo informazioni sulla categorie, mi prendo is e name.
// quando l'Admin crea un prodotto POTRA scegliere la categoria
$categories = Category::orderBy('id', 'desc')->lists('name', 'id');
$users = User::orderBy('id', 'desc')->lists('username', 'id');
return view('admin.product.create', compact('categories', 'users'));
}
/**
* Store a newly created resource in storage.
*
* @param \Illuminate\Http\Request $request
* @return \Illuminate\Http\Response
*/
public function store(Request $request)
{
$rules = [
'name' => 'required',
'description' => 'required',
'price' => 'required',
'image' => 'required',
];
$messages = [
'name.required' => 'Campo titolo prodotto richiesto',
'description.required' => 'Campo descrizione richiesto',
'price.required' => 'Campo prezzo richiesto',
'image.required' => 'Campo Url immagine richiesto'
];
$validator = Validator::make($request->all(), $rules, $messages);
if ($validator->fails()){
return redirect('admin/product/create')->withErrors($validator);
}else {
$visible = (isset($_POST['visible']) == '1' ? '1' : '0');
$data = [
'name' => $request->get('name'),
'slug' => $request->get('name'),
'description' => $request->get('description'),
'extract' => $request->get('description'),
'price' => $request->get('price'),
'image' => $request->get('image'),
'visibile' => $visible,
];
$product = Product::create($data);
return redirect('admin/product')->with('message', 'Prodotto creato con successo!');
//return $data;
}
}
/**
* Display the specified resource.
*
* @param int $id
* @return \Illuminate\Http\Response
*/
public function show(Product $product)
{
return $product;
}
/**
* Show the form for editing the specified resource.
*
* @param int $id
* @return \Illuminate\Http\Response
*/
public function edit(Product $product, User $user)
{
$categories = Category::orderBy('id', 'desc')->lists('name', 'id');
$users = User::orderBy('id', 'desc')->lists('username', 'id');
return view('admin.product.edit', compact('categories', 'users','product'));
}
/**
* Update the specified resource in storage.
*
* @param \Illuminate\Http\Request $request
* @param int $id
* @return \Illuminate\Http\Response
*/
public function update(Request $request, Product $product)
{
$id= $request->get('id');
// i want ignora id of user edited
$rules = [
'name' => 'required|unique:products'.',name,' . $id,
'description' => 'required',
'price' => 'required',
'image' => 'required',
];
$messages = [
'name.required' => 'Campo titolo prodotto richiesto',
'name.unique' => 'Campo titolo già esistente',
'description.required' => 'Campo descrizione richiesto',
'price.required' => 'Campo prezzo richiesto',
'image.required' => 'Campo Url immagine richiesto'
];
$validator = Validator::make($request->all(), $rules, $messages);
if ($validator->fails()){
return redirect()->route('admin.product.edit', $request->get('id'))->withErrors($validator)->withInput();
}
// if there is not any error go to update
else{
// if email id different by input, so if email input update also email
if( $product->name != $request->get('name') ){
$s = new Product;
$visible = (isset($_POST['visible']) == '1' ? '1' : '0');
$data = array(
'name' => $request->get('name'),
'slug' => $request->get('name'),
'description' => $request->get('description'),
'extract' => $request->get('description'),
'price' => $request->get('price'),
'image' => $request->get('image'),
'name' => $request->get('name'),
'user_id' => $request->get('user_id'),
'category_id' => $request->get('category_id'),
'visible' => $visible,
);
$s->where('id', '=', $request->get('id'))->update($data);
return redirect('admin/product')->with('message', 'Utente aggiornato con successo!');
}
// If email input doesnt change update all ( not email)
else{
$s = new Product;
$visible = (isset($_POST['visible']) == '1' ? '1' : '0');
$data = array(
'slug' => $request->get('name'),
'description' => $request->get('description'),
'extract' => $request->get('description'),
'price' => $request->get('price'),
'image' => $request->get('image'),
'name' => $request->get('name'),
'user_id' => $request->get('user_id'),
'category_id' => $request->get('category_id'),
'visible' => $visible,
);
$s->where('id', '=', $request->get('id'))->update($data);
return redirect('admin/product')->with('message', 'Utente aggiornato con successo!');
}
}
}
/**
* Remove the specified resource from storage.
*
* @param int $id
* @return \Illuminate\Http\Response
*/
public function destroy(Product $product)
{
$deleted=$product->delete();
if(isset($deleted))
{
return redirect('admin/product')->with('message', 'Prodotto eliminato con successo!');
} else {
return redirect('admin/product')->with('message-error', 'Prodotto non eliminato');
}
}
}
CREATE.PHP
{!! Form::open(['route'=>'admin.product.store', 'class'=>'form-horizontal form-label-left']
)!!}
<div class="form-group">
<label class="control-label col-md-3 col-sm-3 col-xs-12" for="name">Titolo Prodotto<span class="required">*</span>
</label>
<div class="col-md-6 col-sm-6 col-xs-12">
<input type="text" id="name" name="name" class="form-control col-md-7 col-xs-12" placeholder="titolo prodotto">
</div>
</div>
<div class="form-group">
<label class="control-label col-md-3 col-sm-3 col-xs-12" for="lastname">Descrizione<span class="required">*</span>
</label>
<div class="col-md-6 col-sm-6 col-xs-12">
<input type="textarea" id="description" name="description" class="form-control col-md-7 col-xs-12">
</div>
</div>
<div class="form-group">
<label class="control-label col-md-3 col-sm-3 col-xs-12" for="username">Prezzo €<span class="required">*</span>
</label>
<div class="col-md-6 col-sm-6 col-xs-12">
<input type="text" id="price" name="price" class="form-control col-md-7 col-xs-12" placeholder="prezzo">
</div>
</div>
<div class="form-group">
<label class="control-label col-md-3 col-sm-3 col-xs-12" for="username">Immagine<span class="required">*</span>
</label>
<div class="col-md-6 col-sm-6 col-xs-12">
<input type="text" id="image" name="image" class="form-control col-md-7 col-xs-12" placeholder="Url immagine">
</div>
</div>
<div class="form-group">
<label class="control-label col-md-3 col-sm-3 col-xs-12" for="username">Categoria<span class="required">*</span>
</label>
<div class="col-md-6 col-sm-6 col-xs-12">
{!! Form::select('category_id', $categories, null, ['class'=>'form-control col-md-7 col-xs-12'])!!}
</div>
</div>
<div class="form-group">
<label class="control-label col-md-3 col-sm-3 col-xs-12" for="username">Autore<span class="required">*</span>
</label>
<div class="col-md-6 col-sm-6 col-xs-12">
{!! Form::select('user_id', $users, null, ['class'=>'form-control col-md-7 col-xs-12'])!!}
</div>
</div>
<div class="form-group">
<label class="control-label col-md-3 col-sm-3 col-xs-12" for="active">Attivo
</label>
<div class="col-md-6 col-sm-6 col-xs-12">
<input type="checkbox" name="visible" id="checkbox-create" class="form-control col-md-7 col-xs-12 js-switch" value="1" checked>
</div>
</div>
<div class="ln_solid"></div>
<div class="form-group">
<div class="col-md-6 col-sm-6 col-xs-12 col-md-offset-3">
<a href="{{url('admin/user')}}" class="btn btn-warning">Indietro</a>
<button type="submit" class="btn btn-success">Crea Prodotto</button>
</div>
</div>
{!! Form::close()!!}
ROUTES.PHP（关于CRUD产品）
Route::bind('product', function($id) {
return dixard\Product::where('id', $id)->first();
});
Route::get('admin', function(){
return view('admin.index')
;
});
Route::resource('admin/category','Admin\CategoryController');
Route::bind('category', function($category){
return dixard\Category::find($category);
});
////////////////// ADMIN Users ///////////////////////////////////////////////
Route::resource('admin/user','Admin\UserController');
Route::bind('user', function($user){
return dixard\User::find($user);
});
////////////////// ADMIN PRODUCT ////////////////////////////////////////////////
Route::resource('admin/product','Admin\ProductController');
模型用户
namespace dixard;
use Illuminate\Auth\Authenticatable;
use Illuminate\Database\Eloquent\Model;
use Illuminate\Auth\Passwords\CanResetPassword;
use Illuminate\Foundation\Auth\Access\Authorizable;
use Illuminate\Contracts\Auth\Authenticatable as AuthenticatableContract;
use Illuminate\Contracts\Auth\Access\Authorizable as AuthorizableContract;
use Illuminate\Contracts\Auth\CanResetPassword as CanResetPasswordContract;
use dixard\Product;
class User extends Model implements AuthenticatableContract,
AuthorizableContract,
CanResetPasswordContract
{
use Authenticatable, Authorizable, CanResetPassword;
/**
* The database table used by the model.
*
* @var string
*/
protected $table = 'users';
/**
* The attributes that are mass assignable.
*
* @var array
*/
protected $fillable = [
'name',
'username',
'lastname',
'birth',
'profile',
'country',
//'province',
//'address',
//'address2',
//'phone',
'usertype',
'email',
'password',
'social',
'confirm_token',
'active',
];
// Ogni utente HA tanti prodotti.
public function products()
{
return $this->hasMany('dixard\Product');
}
//--//
模型产品
namespace dixard;
use Illuminate\Database\Eloquent\Model;
use dixard\User;
use dixard\Category;
class Product extends Model
{
protected $table = 'products';
protected $fillabile = ['name','slug','description','extract','image','visible','price',
'category_id','user_id'];
public function user() {
return $this->belongsTo('dixard\User');
}
public function category() {
return $this->belongsTo('dixard\Category');
}
//----//
public function __construct()
{
if(!\Session::has('cart')) \Session::put('cart',array());
}
}
模型类别
<?php
namespace dixard;
use Illuminate\Database\Eloquent\Model;
use dixard\Product;
class Category extends Model
{
protected $table = 'categories';
// gli dico che voglio scrivere questo campi
protected $fillable = [
'name',
'slug',
'description',
'color',
];
public $timestamps = false;
public function products() {
return $this->hasMany('dixard\Product');
}
}.
移民用户
<?php
use Illuminate\Database\Schema\Blueprint;
use Illuminate\Database\Migrations\Migration;
class CreateUsersTable extends Migration
{
/**
* Run the migrations.
*
* @return void
*/
public function up()
{
Schema::create('users', function (Blueprint $table) {
$table->increments('id');
$table->string('name');
$table->string('lastname');
$table->string('username')->default('Utente');
$table->string('birth');
$table->string('profile')->default('image-profile/profilo.png');
$table->string('country')->default('Paese');
//$table->string('province')->default('Città');
//$table->string('address');
//$table->string('address2');
//$table->string('phone');
$table->string('usertype');
$table->string('email')->unique();
$table->string('password', 60);
$table->boolean('social');
$table->boolean('active')->default(0);
$table->string('confirm_token', 100);
$table->rememberToken();
$table->timestamps();
});
}
/**
* Reverse the migrations.
*
* @return void
*/
public function down()
{
Schema::drop('users');
}
}
移民产品
<?php
use Illuminate\Database\Schema\Blueprint;
use Illuminate\Database\Migrations\Migration;
class CreateProductsTable extends Migration
{
/**
* Run the migrations.
*
* @return void
*/
//Up creare table
public function up()
{
Schema::create('products', function (Blueprint $table) {
$table->increments('id');
$table->string('name', 255);
$table->string('slug');
$table->text('description');
//mostrare una piccola descrizione del prodotto
$table->string('extract', 300);
$table->decimal('price', 5, 2);
$table->string('image', 300);
//vedere se pubblico o no
$table->boolean('visible');
// unsigned solo valori positivi
//e fa riferimento al id category,
//Se si cancella, cancellerà tutti i prodotti con quella categoria
//Ogni prodotto ha una categoria
$table->integer('user_id')->unsigned();
$table->foreign('user_id')
->references('id')->on('users')
->onDelete('cascade');
$table->integer('category_id')->unsigned();
// relazioni
$table->foreign('category_id')
->references('id')
->on('categories')
->onDelete('cascade');
//crea // Ogni prodotto ha un autore( artista)
// ----//
$table->timestamps();
});
}
/**
* Reverse the migrations.
*
* @return void
*/
//eliminare table
public function down()
{
Schema::drop('products');
}
}
移民类别
<?php
use Illuminate\Database\Schema\Blueprint;
use Illuminate\Database\Migrations\Migration;
class CreateCategoriesTable extends Migration
{
/**
* Run the migrations.
*
* @return void
*/
public function up()
{
Schema::create('categories', function (Blueprint $table) {
$table->increments('id');
$table->string('name', 255)->unique();
//Slug Nome facile per URL
$table->string('slug');
$table->text('description');
//dargli un colore
$table->string('color', 30);
//$table->timestamps();
});
}
/**
* Reverse the migrations.
*
* @return void
*/
public function down()
{
Schema::drop('categories');
}
}
我注册了一个用户，因此存在用户ID 1。 谢谢您的帮助！
答案 0 :(得分：0)
好的，您的名称约定似乎是正确的，现在您忘记输入user_id到您的产品，因此它不会有1-N关系。
根据Laravel's documentation，你必须使用方法save on user-＆gt; product（）。
$userID = Auth::user()->id; // i dont know how are you setting the authentication, but i will assume its the default.
$userObject = User::find($userID);
... do all the things with product.
$userObject->products()->save($product);