Question

我必须将arry合并到榻榻米基键值数组，我已经读过document，仅此而已：

from couchbase.cluster import Cluster,PasswordAuthenticator
import couchbase.subdocument as SD
#other thing
bucket.upsert("all_goods",[])
bucket.mutate_in("all_goods",SD.array_append("",["a","b","c"])
bucket.mutate_in("all_goods",SD.array_append("",["１","２","３"])

我希望得到

all_goods => [a,b,c,1,2,3]

但是，我明白了：

all_goods => [[a,b,c],[1,2,3]]

我希望将数组合并到文档中

Answer 1

根据documentation，这是预期的行为：

bucket.mutate_in('my_array', SD.array_append('', ['elem1', 'elem2', 'elem3'])
# the document my_array is now ["some_element", ["elem1", "elem2", "elem3"]]

作为一种解决方法，我建议创建一个数组并extend，然后再执行array_append：

from couchbase.cluster import Cluster,PasswordAuthenticator
import couchbase.subdocument as SD
#other thing
bucket.upsert("all_goods",[])
my_array = ["a","b","c"]
my_array.extend(["１","２","３"])
bucket.mutate_in("all_goods",SD.array_append("",my_array)

或者您可以单独添加元素：

from couchbase.cluster import Cluster,PasswordAuthenticator
import couchbase.subdocument as SD
#other thing
bucket.upsert("all_goods",[])
bucket.mutate_in("all_goods",SD.array_append("","a","b","c")
bucket.mutate_in("all_goods",SD.array_append("","１","２","３")

couchbase合并数组到子文档

1 个答案: