用日期猫鼬查询

Question

I am trying to convert parameters in request body to mongoose query to get response of the data in mongodb whose "lastUpdated" is greater than "2018-04-03T08:01:19.269Z" . I post the request through postman with parameters in body

{
    "checkedOut" : false,
    "valid" : false,
    "language" : "en",
    "lastUpdated" : "2018-04-03T08:01:19.269Z",
    "__v" : 0
}

the response works good in responding the data whoes "lastUpdated" is equal to "2018-04-03T08:01:19.269Z" . I write a function in my code:

for (const key in params) {
     if (key === "lastUpdated") {
            params[key] = {$gte : value};
     }
}
return params

So I got a new query:

{ checkedOut: false,
  valid: false,
  language: 'en',
  lastUpdated: { '$gte': '2018-04-03T08:01:19.269Z' },
  __v: 0 
}

But it still does not work...... please help ......

Answer 1

In your case value is a string so you should just convert it to date via:

for (const key in params) {
   if (key === "lastUpdated") {
      params[key] = {$gte : new Date(value)};
   }
}
return params

This way mongoDB would compare dates with valid date .

Answer 2

Using query builder will solve this question:

const query = model.find();
        let datequery = {};
        let otherquery = {};

        for (const key in params) {
            if (key === "lastUpdated") {
                datequery[key] = params[key];
            } else {
                otherquery[key] = params[key];
            }
        }
        console.log(otherquery,datequery);
        query.where(transformCondition(otherquery));
        query.where('lastUpdated').gte(datequery['lastUpdated']);

        return query;