DRF學習之商品詳情與熱賣的實現（十三）

class

goodslistviewset
(cacheresponsemixin, mixins.listmodelmixin, mixins.retrievemodelmixin, viewsets.genericviewset)
:"""
商品列表頁, 分頁， 搜尋， 過濾， 排序
"""# throttle_classes = (userratethrottle, )
queryset = goods.objects.
all(
)    serializer_class = goodsserializer
pagination_class = goodspagination
# authentication_classes = (tokenauthentication, )
filter_backends =
(djangofilterbackend, filters.searchfilter, filters.orderingfilter)
filter_class = goodsfilter
search_fields =
('name'
,'goods_brief'
,'goods_desc'
)    ordering_fields =
('sold_num'
,'shop_price'
)

class

goodsimageserializer
(serializers.modelserializer)
:class
meta
:        model = goodsimage
fields =
("image",)
class
goodsserializer
(serializers.modelserializer)
:    category = categoryserializer(
)    images = goodsimageserializer(many=
true
)class
meta
:        model = goods
fields =
"__all__"

class

goodsfilter
(django_filters.rest_framework.filterset)
:"""
商品的過濾類
"""pricemin = django_filters.numberfilter(field_name=
'shop_price'
, help_text=
"最低**"
,lookup_expr=
'gte'
)    pricemax = django_filters.numberfilter(field_name=
'shop_price'
, lookup_expr=
'lte'
)    top_category = django_filters.numberfilter(method=
'top_category_filter'
, field_name=
'category_id'
, lookup_expr=
'=')
# 自定義過濾，過濾某個一級分類
#過濾邏輯
#類別為1or2or3
deftop_category_filter
(self, queryset, name, value)
:        queryset = queryset.
filter
(q(category_id=value)
| q(category__parent_category_id=value)
| q(category__parent_category__parent_category_id=value)
)return queryset
class
meta
:        model = goods
fields =
['pricemin'
,'pricemax'
,'is_hot'
,'is_new'
]

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