小编Fra*_*tto的帖子

您好，我需要在 Flutter 中执行类似的操作，但我无法单独使用数据表或表来执行此操作。有谁知道要使用哪个小部件或任何库来轻松实现它。问候！

亲爱的尝试在 mongo 中按日期过滤，但我没有成功。我传递了我的查询和 JSON 结构。

db.getCollection('articles').aggregate([
{ "$match": {
 "$expr": {
  "$and": [
    {
      "$gte": [
        { "$dateFromString": { "creationDate": "10-08-2018", "format": "%m-%d-%Y" }}
      ]
    },
    {
      "$lte": [
        { "$dateFromString": { "creationDate": "10-08-2018", "format": "%m-%d-%Y" }}
      ]
    }
  ]
}
}}
])

我的 JSON 是

{
"_id" : ObjectId("5bbb6b1de75b933850a608fc"),
"title" : "05",
"body" : "asgfasgasfa",
"creationDate" : ISODate("2018-10-08T14:35:07.000Z"),
"operationType" : "C",
"__v" : 0
}

MongoDB：v3.6.3

I am experiencing extreme slowness with mongo. Earlier when I put sudo systemctl status mongodb mongo I appeared Online and in green. Now after a few days he started to throw me away

 mongodb.service - High-performance, schema-free document-oriented database
   Loaded: loaded (/etc/systemd/system/mongodb.service; disabled; vendor preset: enabled)
   Active: failed (Result: exit-code) since Fri 2019-11-29 08:55:07 -03; 3 days ago
  Process: 13231 ExecStart = / usr / bin / mongod --quiet --config /etc/mongod.conf (code = exited, status = 48)
 Main PID: 13231 …