Laravel 使用外键将动态输入保存在数据库中

Question

我正在使用 Laravel 5.1

我想在我的数据库中保存动态创建输入的输入值。

我基本上用这条线创建动态输入：

...
for(var i = 1; i<slider.value; i++) {
          +'<div class=\"input-group\">'
             +'<input name=\"input-chapter-name[]\" name="" type=\"text\">'
             +'<input name=\"input-chapter-start[]\" name="" type=\"text\">'
             +'<input name=\"input-chapter-end[]\" name="" type=\"text\">'
          +'</div>'
}

我的两个模型如下所示：

<?php
    class Chapters extends Model
    {
        protected $table = 'chapters';
        protected $fillable = ['chapter_name' ,'input-chapter-start', 'input-chapter-end'];

        public function product()
        {
            return $this->belongsTo('App\Product');
        }

    }

class Product extends Model
{
    protected $table = 'products';
    protected $fillable = ['email', 'title', 'filename', 'inputMpg', 'number_of_chapters'];

    public static $rules = [
        'email'                => 'required|email|max:50',
        'title'                => 'required|max:50',
        'filename'             => 'required|max:50',
        'input_mpg'            => 'required',
        'number_of_chapters'   => 'required',
        'input-chapter-name'   => 'required',
        'input-chapter-start'  => 'required',
        'input-chapter-end'    => 'required'
    ];

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

}

在我的控制器中，我保存（尝试保存）这样的数据：

 $product->save();
 $Chapters->chapters;
 $Chapters->product()->associate($product);
 $Chapters->save();

并得到以下错误：

Grammar.php 第 118 行中的 ErrorException：参数 1 传递给 Illuminate\Database\Grammar::parameterize() 必须是数组类型， 给定整数，调用 C:\xampp\htdocs\lariApp\vendor\laravel\framework\src\Illuminate\Database\Query\Grammars\Grammar.php 在第 672 行并定义

编辑：

我当前的控制器如下所示：

<?php

class ProductController extends Controller
{

    protected $request;

    public function request(Request $request)
    {
        $this->request = $request;
    }

    public function createProduct(Request $request, $productID)
    {
        $product        = new Product;

        $data = $request->only('email', 'title', 'filename', 'number_of_chapters');

        # Validate Input
        $validator = Validator::make($request->all(), Product::$rules);

        # if validation fails return Erros
        if($validator->fails())
        {
            return Redirect::back()->withInput()->withErrors($validator);
        }

        $product->fill($data);

        if($product->save())
        {
            $product = Product::find($productID);

            foreach ($request->input('chapters', []) as $chaptersData) {
                $chapters = new Chapters($chaptersData);
                $chapters->product()->associate($product);
                $chapters->save();
            }

            return redirect()->route('root')->with('message', 'WIN')->withInput();
        }
        else
        {
            return redirect()->route('newProduct')->with('message', 'Error')->withInput();
        }

    }

}

还有我的路线：

Route::post('create/{productID}', ['as' => 'createProduct', 'uses' => 'ProductController@createProduct']);

Answer 1

我认为控制器应该是这样的：

public function createProduct(Request $request)
{
    $data = $request->only('email', 'title', 'filename', 'number_of_chapters');

    # Validate Input
    $validator = Validator::make($request->all(), Product::$rules);

    # if validation fails return Erros
    if($validator->fails())
    {
        return Redirect::back()->withInput()->withErrors($validator);
    }

    $product = new Product($data);
    if($product->save())
    {
        foreach ($request->input('chapters', []) as $chaptersData) {
            $chapters = new Chapters($chaptersData);
            $chapters->product()->associate($product);
            $chapters->save();
        }

        return redirect()->route('root')->with('message', 'WIN')->withInput();
    }
    else
    {
        return redirect()->route('newProduct')->with('message', 'Error')->withInput();
    }

}

哪里的视图更像这样：

...
for(var i = 0; i < slider.value; i++) {
    +'<div class=\"input-group\">'
        +'<input name=\"chapters['+i+'][chapter_name]\" type=\"text\">'
        +'<input name=\"chapters['+i+'][input-chapter-start]\" type=\"text\">'
        +'<input name=\"chapters['+i+'][input-chapter-end]\" type=\"text\">'
    +'</div>'
}

这将帮助您动态创建多个章节并与产品模型相关联。

您只需将产品的 id 传递到此控制器操作的路由中（在定义链接时）：

route('create-multi', $product->id)

或者只是

<a href="create-multi/{{$product->id}}">

定义如下：

Route::post('create-multi/{productId}', 'Controller@createMultiChapters')