Django - 無法將關鍵字“slug”解析為字段

Question

當我單擊我的產品時，會出現此錯誤。 我已經遷移了商店模型和管理員，並在 /admin 上重命名了產品、slugs 和描述。 當我嘗試 go 到產品頁面時出現的錯誤是：

Cannot resolve keyword 'slug' into field. Choices are: available, category, category_id, created, id, image, order_items, price, translations, updated

我不知道該怎么做我的遷移工作正常，服務器運行正常，直到我點擊一個產品。

商店/models.py：

from django.db import models
from django.urls import reverse
from parler.models import TranslatableModel, TranslatedFields


class Category(TranslatableModel):
    translations = TranslatedFields(
        name = models.CharField(max_length=200,
                                db_index=True),
        slug = models.SlugField(max_length=200,
                                db_index=True,
                                unique=True)
    )

    class Meta:
        # ordering = ('name',)
        verbose_name = 'category'
        verbose_name_plural = 'categories'

    def __str__(self):
        return self.name

    def get_absolute_url(self):
        return reverse('shop:product_list_by_category',
                       args=[self.slug])


class Product(TranslatableModel):
    translations = TranslatedFields(
        name = models.CharField(max_length=200, db_index=True),
        slug = models.SlugField(max_length=200, db_index=True),
        description = models.TextField(blank=True)
    )
    category = models.ForeignKey(Category,
                                 related_name='products',
                                 on_delete=models.CASCADE)
    image = models.ImageField(upload_to='products/%Y/%m/%d',
                              blank=True)
    price = models.DecimalField(max_digits=10, decimal_places=2)
    available = models.BooleanField(default=True)
    created = models.DateTimeField(auto_now_add=True)
    updated = models.DateTimeField(auto_now=True)

    # class Meta:
    #    ordering = ('name',)
    #    index_together = (('id', 'slug'),)

    def __str__(self):
        return self.name

    def get_absolute_url(self):
        return reverse('shop:product_detail',
                       args=[self.id, self.slug])

管理員.py：

from django.contrib import admin
from parler.admin import TranslatableAdmin
from .models import Category, Product


@admin.register(Category)
class CategoryAdmin(TranslatableAdmin):
    list_display = ['name', 'slug']

    def get_prepopulated_fields(self, request, obj=None):
        return {'slug': ('name',)}


@admin.register(Product)
class ProductAdmin(TranslatableAdmin):
    list_display = ['name', 'slug', 'price',
                    'available', 'created', 'updated']
    list_filter = ['available', 'created', 'updated']
    list_editable = ['price', 'available']

    def get_prepopulated_fields(self, request, obj=None):
        return {'slug': ('name',)}

商店/urls.py：

from django.urls import path
from . import views

app_name = 'shop'

urlpatterns = [
    path('', views.product_list, name='product_list'),
    path('<slug:category_slug>/', views.product_list, name='product_list_by_category'),
    path('<int:id>/<slug:slug>/', views.product_detail, name='product_detail'),
]

Answer 1

我不熟悉 TranslatedFields，但在 shop/models.py 中，您嘗試調用self.slug ，這似乎是translations字段的子集。

所以試試：

    def get_absolute_url(self):
        return reverse('shop:product_detail',
                       args=[self.id, self.translations.slug])

Answer 2

請參閱 Django Slug 文檔。

你會找到你的答案。