从一个示例中,您可以看到一个多重或查询过滤器:
Article.objects.filter(Q(pk=1) | Q(pk=2) | Q(pk=3))
例如,这导致:
[<Article: Hello>, <Article: Goodbye>, <Article: Hello and goodbye>]
但是,我想从列表中创建此查询过滤器。怎么做?
例如 [1, 2, 3] -> Article.objects.filter(Q(pk=1) | Q(pk=2) | Q(pk=3))
[1, 2, 3] -> Article.objects.filter(Q(pk=1) | Q(pk=2) | Q(pk=3))
你可以按以下方式链接查询:
values = [1,2,3] # Turn list of values into list of Q objects queries = [Q(pk=value) for value in values] # Take one Q object from the list query = queries.pop() # Or the Q object with the ones remaining in the list for item in queries: query |= item # Query the model Article.objects.filter(query)