Question

我正在尝试为相应的餐厅提供所有菜肴，但它一直在展示餐厅.FoodItem.None

Models.py：

class Restaurant(models.Model):
    name = models.CharField(max_length = 200)
    email = models.EmailField(max_length = 254)
    address = models.CharField(max_length=100)
    city = models.CharField(max_length=100)
    website = models.TextField(validators=[URLValidator()])
    telephone = models.PositiveIntegerField()
    owner = models.ForeignKey(Owner , on_delete = models.CASCADE)
    def __str__(self):
        return self.name

class FoodItem(models.Model):
    name = models.CharField(max_length = 200)
    price = models.DecimalField(max_digits=8, decimal_places=2, blank=True, 
null=True)
    description = models.TextField(blank=True, null=True)
    restaurant = models.ForeignKey('restaurant.Restaurant', null=True, 
    related_name='dishes' , on_delete = models.CASCADE)
    def __str__(self):
        return self.name;

views.py：

class FoodItemDetailView(DetailView):
    model = Restaurant
    def get_context_data(self , *args , **kwargs):
        context = super(FoodItemDetailView , self).get_context_data(*args , **kwargs)
        print(context)
        return context

restaurant_detail.html：在下面没有菜的名称被打印，但餐厅的名称正在打印

{% extends 'base.html' %}
{% block content %}
<div class="container">
    <div class="row">
        <div class="col col-sm-6 ">
            restaurant and serving food item
            {{ object.name }}
            {% for dish in object.dishes.all %}
                {{ dish.name }}
            {% endfor %}
        </div>
    </div>
</div>
{% endblock %}

无法在Django中使用相关名称访问菜肴的详细信息

0 个答案: