json - N1QL : add new object to existed couchbase document

Question

可以使用N1QL吗？

例如我有这个:

{
"blog": "Coffee",
"user_id": 41,
"comments": [
    {
        "comment": "cup",
        "user_id": 883
    },
    {
        "comment": "water",
        "user_id": 790
    }
  ]
}

我想使用 N1QL 在评论中添加糖分，结果如下: { “博客”:“咖啡”， “用户id”:41， “评论”: [ { "评论": "杯子", “用户 ID”:883 }, { “评论”:“水”， “用户 ID”:790 }, { “评论”:“糖”， “用户 ID”:14 } ] }

我尝试过这个:

UPDATE
    Blog
SET
    `c.comment` = "sugar",
    `c.user_id` = 14
FOR
    c IN comments
WHERE 
    `blog` = "Coffee" 
// [{"code":3000,"msg":"syntax error - at WHERE"}

还有这个:

UPDATE 
    Blog
SET
    ("comments", { "comment": "sugar", "user_id": 14})
WHERE
    `blog` = "Coffee"
//[{"code":3000,"msg":"syntax error - at ("}

Answer 1

是的，您可以使用 N1QL 执行任何修改。

UPDATE Blog
SET comments = ARRAY_APPEND( comments, { "comment":"sugar", "user_id":14 } )
WHERE blog = "Coffee";