mongodb-query

问题 I have created Mongo PlayGround Currently dateHour field is dividing time by 15min interval. For example - if `"updatedAt": ISODate("2020-03-20T18:16:50.000Z")` it shows as : "dateHour": ISODate("2020-03-20T18:15:00Z"), so First 15min bucket is represented as 18:00:000z (this covers minutes from 1 to 15) second 15min bucket is represented as 18:15:000z (this covers minutes from 15 to 30) and so on.... Expected - First 15min bucket should be displayed as 18:15:000z (this covers minutes from 1

问题 Imagine the following model: var Office = { id: 1, name: "My Office", branches: [ { adddress: "Some street, that avenue", isPrincipal: true, }, { adddress: "Another address", isPrincipal: false, }, ] } I'd like to remove a branch, but we can't let the user remove the principal branch from an office. So here's my function: remove: function(body) { return new Promise(function(resolve, reject) { return Office.findByIdAndUpdate(1, { $pull: {'branches': {_id: body.branch.id}}}, { new: true })

问题 So I have a query in MongoDB (2.6.4) where I am trying to implement a simple upvote/downvote mechanism. When a user clicks upvote, I need to do the following: If already upvoted by user, then remove upvote. Else if not upvoted by user, then add upvote AND remove downvote if exists. So far, my query formed (is incorrect) is: db.collection.aggregate([ { $project: { "_id" : ObjectId("53e4d45c198d7811248cefca"), "upvote": { "$cond": [ {"$in": ["$upvote",1] }, {"$pull": {"upvote" : 1}}, {"

问题 I have a schema like this { members: [{ type: Schema.Types.ObjectId, ref: 'User' }] createdAt: { type: Date, default: Date.now } ... } And the docs are 1- { members: ["some id 1", "some id 2"] }, createdAt: "someTime ago" 2- { members: ["some id 1", "some id 2", "some id 3"] }, createdAt: "someTime ago" I want to find the docs which match the exact an array of elements ['some id 1', 'some id 2'] ie doc 1 in the above sample docs How this could be possible? Any help would be appreciated. 回答1:

问题 I have a schema like this { members: [{ type: Schema.Types.ObjectId, ref: 'User' }] createdAt: { type: Date, default: Date.now } ... } And the docs are 1- { members: ["some id 1", "some id 2"] }, createdAt: "someTime ago" 2- { members: ["some id 1", "some id 2", "some id 3"] }, createdAt: "someTime ago" I want to find the docs which match the exact an array of elements ['some id 1', 'some id 2'] ie doc 1 in the above sample docs How this could be possible? Any help would be appreciated. 回答1:

问题 I have a schema like this { members: [{ type: Schema.Types.ObjectId, ref: 'User' }] createdAt: { type: Date, default: Date.now } ... } And the docs are 1- { members: ["some id 1", "some id 2"] }, createdAt: "someTime ago" 2- { members: ["some id 1", "some id 2", "some id 3"] }, createdAt: "someTime ago" I want to find the docs which match the exact an array of elements ['some id 1', 'some id 2'] ie doc 1 in the above sample docs How this could be possible? Any help would be appreciated. 回答1:

问题 I want to make a text search case insensitive with regex query with spring-data mongo . For example in Oracle : select * from user where lower(username) like '%ab%' How can i make this query with spring-data mongo ? Thanks in advance 回答1: You can try something like below. Assumes you have a User pojo class. Using MongoTemplate i option for case insensitive: Criteria regex = Criteria.where("username").regex(".*ab.*", "i"); mongoOperations.find(new Query().addCriteria(regex), User.class); Using

问题 I am defining a mongoose schema and definition is as follows: inventoryDetails: { type: Object, required: true }, isActive:{ type:Boolean, default:false } I tried "Object" type and I am seeing my data is getting saved successfully. When I changed type to array, the save is failing. Sample Data: { "inventoryDetails" : { "config" : { "count" : { "static" : { "value" : "123" }, "dataSource" : "STATIC" }, "title" : { "static" : { "value" : "tik" }, "dataSource" : "STATIC" } }, "type" : "s-card

问题 I am making a voting system in which an object will have an array called scores , every time it is qualified a record will be entered to this array as long as the same id does not exist. Sample Doc : { name:"jose luis", scores:[] } The user push : {id:1,stars:5} Updated Doc : { name:"jose luis", scores:[{id:1,stars:5}] } The user push 2nd time : {id:1,stars:4} Updated Doc : { name:"jose luis", scores:[{id:1,stars:4}] } //this should update the value of the stars under the array element with

问题 I am making a voting system in which an object will have an array called scores , every time it is qualified a record will be entered to this array as long as the same id does not exist. Sample Doc : { name:"jose luis", scores:[] } The user push : {id:1,stars:5} Updated Doc : { name:"jose luis", scores:[{id:1,stars:5}] } The user push 2nd time : {id:1,stars:4} Updated Doc : { name:"jose luis", scores:[{id:1,stars:4}] } //this should update the value of the stars under the array element with