Laravel 5.1 - 表格中的Foreach数据(刀片)

时间:2016-05-22 22:47:09

标签: php laravel laravel-5 laravel-blade

我有一个问题,显示我的产品可用的颜色,我试图用刀片foreach显示它们,但它不起作用。 我的资源控制器:

public function show($id){
        $colors = Color::where('product_id', $id)->orderBy('id', 'asc');
        $product = Product::where('id', $id)->first();

        return view('store.show', compact('product','colors'));     
    }

这是我的桌面颜色,我正确添加了关系 enter image description here 产品型号:

namespace dixard;

use Illuminate\Database\Eloquent\Model;
use dixard\User;
use dixard\Category;
use dixard\Gender;
use dixard\OrderItem;
use dixard\Color;

class Product extends Model
{
    protected $table = 'products';
    protected $fillable = 
    [
        'name',
        'slug',
        'description',
        'extract',
        'image',
        'visible',
        'price',
        'category_id',
        'gender_id',
        'user_id'
    ];

    // Colleghiamo OGNI prodotto ha un utente
    public function user() {
        return $this->belongsTo('dixard\User');
    }

    // Colleghiamo OGNI prodotto ha una categoria
    public function category() {
        return $this->belongsTo('dixard\Category');
    }

    public function gender() {
        return $this->belongsTo('dixard\Gender');
    }

    // prodotto è contenuto in TANTI order item
    public function OrderItem() {
        return $this->belongsTo('dixard\OrderItem');
    }

    // prodotto è contenuto in TANTI order item
    public function Color() {
        return $this->belongsTo('dixard\Color');
    }
}

颜色模型

namespace dixard;

use Illuminate\Database\Eloquent\Model;

class Color extends Model
{
    protected $table = 'colors';

    // gli dico che voglio scrivere questo campi
    protected $fillable = [
        'color',
        'product_id',
    ];

    public $timestamps = false;

    // Ogni color HA tanti prodotti. // Ogni prodotto ha tanti colori
    public function products() {
        return $this->hasMany('dixard\Product');
    }
}

我正试图展示我的产品的颜色:

<label for="p_color">Color</label>
@foreach($colors as $color)
    <td>{{ $color->color }}</td>
@endforeach

这只是测试!我想显示一个选择选项,我尝试使用BLADE但它不起作用,

  • 获取product_id = $ id的所有颜色。
  • 获取id = $ id的产品正常工作。

我认为问题是代码刀片(foreach)显示我的产品可用的所有颜色。

我该如何解决?谢谢你的帮助!

4 个答案:

答案 0 :(得分:3)

从我所看到的,你不是将一个颜色的集合(一个数组)传递给视图,而是一个查询构建器。您需要添加查询执行方法,例如。 get()到管道的末尾:

data_exercise_3$category <- c(rep("A",6),rep("B",6))

答案 1 :(得分:1)

您没有在颜色查询中运行get()

public function show($id){

    $colors = Color::where('product_id', $id)
                  ->orderBy('id', 'asc')
                  ->get();            // <-- Add this

    $product = Product::where('id', $id)->first();

    return view('store.show', compact('product','colors')); 

}

答案 2 :(得分:0)

// To select multi records,you have to use get();

$colors = Color::where('product_id', $id)->orderBy('id', 'asc')
             ->get(); // add get()

// To select single record, you have to use first();
$product = Product::where('id', $id)->first();

// By the way, you can also use this statement to replace the second statement. 
// This only worked for primary key and the key must be id)
$product = Product::find($id);

答案 3 :(得分:0)

在查询中添加 get() all()

$colors = Color::where('product_id', $id)->orderBy('id', 'asc')->get();

OR

$colors = Color::where('product_id', $id)->orderBy('id', 'asc')->all();