Question

在我的数据库“ shoppinp-cart-system ”中我有4个表： “购物车”，“ cart_product ”，“用户”和“产品”我想获得当前用户购物车和打印产品，但不仅仅是产品名称，而是完整的特征，即名称，价格，图像和数量。

这是我的CartController中的函数listCartAction（）：

/**
 * @Route("/cart/show/{id}", name="cart_list")
 */
public function listCartAction($id)
{
    $cart = $this->getDoctrine()->getRepository('AppBundle:CartProduct')->find($id);

    $cartProducts = $cart->getProduct();

    return $this->render('cart/cart.view.html.twig', array(
        'cart' => $cartProducts
    ));
}

和Twig模板：

`{% extends 'base.html.twig' %}

    {% block body %}
        <div style="text-align: center;">
            <h1>Products In My Cart</h1>
        </div>
        {% for c in cart %}
            <h1>{{ c.product }}</h1>
        {% endfor %}
    {% endblock %}`

购物车实体：`

<?

php

namespace AppBundle\Entity;

use Doctrine\ORM\Mapping as ORM;

/**
 * Cart
 *
 * @ORM\Table(name="cart")
 * @ORM\Entity(repositoryClass="AppBundle\Repository\CartRepository")
 */
class Cart
{
    /**
     * @var int
     *
     * @ORM\Column(name="id", type="integer")
     * @ORM\Id
     * @ORM\GeneratedValue(strategy="AUTO")
     */
    private $id;

    /**
     * @ORM\ManyToOne(targetEntity="AppBundle\Entity\User")
     * @ORM\JoinColumn(name="user_id", referencedColumnName="id")
     */
    private $userId;

    /**
     * @var \DateTime
     *
     * @ORM\Column(name="date_created", type="datetime")
     */
    private $dateCreated;

    /**
     * @var \DateTime
     *
     * @ORM\Column(name="date_updated", type="datetime")
     */
    private $dateUpdated;


    /**
     * Get id
     *
     * @return int
     */
    public function getId()
    {
        return $this->id;
    }

    /**
     * Set userId
     *
     * @param integer $userId
     *
     * @return Cart
     */
    public function setUserId($userId)
    {
        $this->userId = $userId;

        return $this;
    }

    /**
     * Get userId
     *
     * @return int
     */
    public function getUserId()
    {
        return $this->userId;
    }

    /**
     * Set dateCreated
     *
     * @param \DateTime $dateCreated
     *
     * @return Cart
     */
    public function setDateCreated($dateCreated)
    {
        $this->dateCreated = $dateCreated;

        return $this;
    }

    /**
     * Get dateCreated
     *
     * @return \DateTime
     */
    public function getDateCreated()
    {
        return $this->dateCreated;
    }

    /**
     * Set dateUpdated
     *
     * @param \DateTime $dateUpdated
     *
     * @return Cart
     */
    public function setDateUpdated($dateUpdated)
    {
        $this->dateUpdated = $dateUpdated;

        return $this;
    }

    /**
     * Get dateUpdated
     *
     * @return \DateTime
     */
    public function getDateUpdated()
    {
        return $this->dateUpdated;
    }
}

` 购物车产品实体：

<?php

namespace AppBundle\Entity;

use Doctrine\ORM\Mapping as ORM;

/**
 * CartProduct
 *
 * @ORM\Table(name="cart_product")
 * @ORM\Entity(repositoryClass="AppBundle\Repository\CartProductRepository")
 */
class CartProduct
{
    /**
     * @var int
     *
     * @ORM\Column(name="id", type="integer")
     * @ORM\Id
     * @ORM\GeneratedValue(strategy="AUTO")
     */
    private $id;

    /**
     * @var Cart
     * @ORM\ManyToOne(targetEntity="AppBundle\Entity\Cart")
     * @ORM\JoinColumn(name="cart_id", referencedColumnName="id")
     */
    private $cart;

    /**
     * @var \stdClass
     * @ORM\ManyToOne(targetEntity="AppBundle\Entity\Product")
     * @ORM\JoinColumn(name="product_id", referencedColumnName="id")
     */
    private $product;

    /**
     * @var int
     *
     * @ORM\Column(name="quantity", type="integer")
     */
    private $quantity;


    /**
     * Get id
     *
     * @return int
     */
    public function getId()
    {
        return $this->id;
    }

    /**
     * Set cart
     *
     * @param \stdClass $cart
     *
     * @return CartProduct
     */
    public function setCart($cart)
    {
        $this->cart = $cart;

        return $this;
    }

    /**
     * Get cart
     *
     * @return Cart
     */
    public function getCart()
    {
        return $this->cart;
    }

    /**
     * Set product
     *
     * @var Product
     *
     * @return CartProduct
     */
    public function setProduct($product)
    {
        $this->product = $product;

        return $this;
    }

    /**
     * Get product
     * @var Product
     */
    public function getProduct()
    {
        return $this->product;
    }

    /**
     * Set quantity
     *
     * @param integer $quantity
     *
     * @return CartProduct
     */
    public function setQuantity($quantity)
    {
        $this->quantity = $quantity;

        return $this;
    }

    /**
     * Get quantity
     *
     * @return int
     */
    public function getQuantity()
    {
        return $this->quantity;
    }
}

Answer 1

考虑到您的实体和映射是正确的，您需要返回Cart实体而不是CartProduct。请记住，您可以使用symfony的参数转换器，如下所示：

/**
* @Route("/cart/show/{id}", name="cart_list")
*/
public function listCartAction(Cart $cart) //Remember to import the Cart class!
{
    return $this->render('cart/cart.view.html.twig', array(
        'cart' => $cart
    ));
}

嫩枝：

{% extends 'base.html.twig' %}

    {% block body %}
        <div style="text-align: center;">
            <h1>Products In My Cart</h1>
        </div>
        {% for p in cart.products %}
            <h1>{{ p.name }}</h1>
            <p>{{ p.price }}</p>
            //Render other products properties here...
        {% endfor %}
    {% endblock %}

Symfony paramconverter docs：http://symfony.com/doc/current/bundles/SensioFrameworkExtraBundle/annotations/converters.html

编辑 - 发布实体后

/**
* @Route("/cart/show/{id}", name="cart_list")
*/
public function listCartAction($id)
{
    $cartProducts = $this->getDoctrine()->getRepository('AppBundle:CartProduct')
        ->findByCart($id);

    return $this->render('cart/cart.view.html.twig', array(
        'cartProducts' => $cartProducts
    ));
}

嫩枝：

{% extends 'base.html.twig' %}

    {% block body %}
        <div style="text-align: center;">
            <h1>Products In My Cart</h1>
        </div>
        {% for cp in cartProducts %}
            <h1>{{ cp.product.name }}</h1>
            <p>{{ cp.product.price }}</p>
            <p>{{ cp.quantity }}</p>
            //Render other products properties here...
        {% endfor %}
    {% endblock %}

如何使用Symfony打印我的购物车中的产品信息

1 个答案: