为了生成一些查询,我使用以下代码:
query_words = ['word1', 'word2', 'word3', ...]
query_array = [Q(text__icontains=w) for w in query_words]
try:
query = query_array.pop()
for q in query_array:
query |= q #or query &= q
result = SomeModel.objects.filter(query)
except:
result = SomeModel.objects.none()
我确信有一种方法可以写得更紧凑。如何?我试过使用reduce函数:
...
query = reduce(lambda res, q: res |= q, query_array, query_array.pop())
...
但是我遇到了语法错误。怎么了?