使用Django为AND和OR条件创建动态查询

Question

基本上基于我在JSON下创建的多个筛选器。

{
    "category1": ["A", "B", "C"],
    "category2": ["x", "y", "z"],
    "category3": ["med1", "med2"]
}

我正在寻找从上面的JSON动态创建的下面的查询

query=((Q(category__name__contains="category1") &
(Q(subcategory__name__contains="A")|  
Q(subcategory__name__contains="B")|Q(subcategory__name__contains="C"))
)|(Q(category__name__contains="category2") &
(Q(subcategory__name__contains="x")| 
Q(subcategory__name__contains="y")|Q(subcategory__name__contains="z"))

)|(Q(category__name__contains="categor3") & 
(Q(subcategory__name__contains="med1")| 
Q(subcategory__name__contains="med2"))
))

Product.objects.filter（查询）

有关如何执行此操作的任何想法？ 我必须使用行SQL查询还是可以通过Django查询完成？

Answer 1

用于：

query = (Q(category__name__contains="category1") &
         Q(subcategory__name__in=json['category1'])) |
        (Q(category__name__contains="category2") &
         Q(subcategory__name__in=json['category2'])) |
        (Q(category__name__contains="categor3") & 
         Q(subcategory__name__in=json['categor3']))