在管理中按外键搜索

Question

models.py

class Supplier(models.Model):
   name = models.CharField(blank=True, max_length=50,)
   city = models.CharField(blank=True, max_length=50)
   email = models.CharField(blank=True, max_length=50)

class Product(models.Model):
   supplier = models.ForeignKey(Supplier, on_delete=models.CASCADE)
   description = models.CharField(blank=True, max_length=100)
   DDT = models.FileField(upload_to="DDT/%Y/%m/%d")
   fattura = models.FileField(upload_to="DDT/%Y/%m/%d")

admin.py
     
@admin.register(Supplier)
    class SupplierModelAdmin(admin.ModelAdmin):
    model = Supplier
  
@admin.register(Product)
    class ProductModelAdmin(admin.ModelAdmin):
    model = Product
    list_display = ['supplier']
    search_fields = [ 'supplier']

当我搜索供应商时，django return 出现错误：

相关字段查找无效：icontains

Answer 1

您可以使用 __ 表示法。

所以你会这样做；

@admin.register(Product)
    class ProductModelAdmin(admin.ModelAdmin):
    model = Product
    list_display = ['supplier']
    search_fields = [
        'description',
        'supplier__name',
        'supplier__city',
        'supplier__email'
    ]

搜索文档在这里； https://docs.djangoproject.com/en/3.1/ref/contrib/admin/#django.contrib.admin.ModelAdmin.search_fields

在管理中按外键搜索

Search by foreign key in admin

django

foreign-keys

django-models

django-admin