Spring MongoDB query documents if days difference is x days

Question

I have a collection that has two date fields and I am trying to query all records that have a difference of 15 days:

{
   \"_id\" : \"someid\",
   \"factoryNumbe         


        

Answer 1

You need to use aggregate pipeline to get the documents

• $ifNull - to set current date if accepted date is null
• $addFields - to add fields from, fromDays and toDays to existing document to
• filter in $redact
• $redact - match within fields and filter
• $project - to exclude the fields added in $addFields stage

mongo query

db.t1.aggregate([
    {$addFields : {
        from : {$ifNull : ["$acceptedDate", new Date()]}
    }},
    {$addFields: {
        fromDays : {$sum : [{$multiply : [365, {$year : "$from"}]}, {$dayOfYear : "$from"}]},
        toDays : {$sum : [{$multiply : [365, {$year : "$lastVisit"}]}, {$dayOfYear : "$lastVisit"}]}
    }},
    { $redact: {
        $cond: {
           if: {$lte : [{$subtract : ["$fromDays", "$toDays"]}, 15]},
           then: "$$DESCEND",
           else: "$$PRUNE"
         }
       }
    },
    {$project : {from:0, fromDays:0, toDays:0}}
])

sample collection

> db.t1.find().pretty()
{
        "_id" : "someid",
        "factoryNumber" : 123,
        "factoryName" : "some factory name",
        "visitType" : "audit",
        "personelId" : "somePersonel",
        "lastVisit" : ISODate("2018-10-30T00:00:00Z"),
        "acceptedDate" : ISODate("2018-11-16T00:00:00Z")
}
{
        "_id" : "someotherid",
        "factoryNumber" : 123,
        "factoryName" : "some factory name",
        "visitType" : "audit",
        "personelId" : "somePersonel",
        "lastVisit" : ISODate("2018-10-30T00:00:00Z")
}

result with min 150 days

> db.t1.aggregate([ {$addFields : { from : {$ifNull : ["$acceptedDate", new Date()]} }}, {$addFields: { fromDays : {$sum : [{$multiply : [365, {$year : "$from"}]}, {$dayOfYear : "$from"}]}, toDays : {$sum : [{$multiply : [365, {$year : "$lastVisit"}]}, {$dayOfYear : "$lastVisit"}]} }}, { $redact: {         $cond: {            if: {$lte : [{$subtract : ["$fromDays", "$toDays"]}, 150]},            then: "$$DESCEND",            else: "$$PRUNE"          }        } }, {$project : {from:0, fromDays:0, toDays:0}} ]).pretty()
{
        "_id" : "someid",
        "factoryNumber" : 123,
        "factoryName" : "some factory name",
        "visitType" : "audit",
        "personelId" : "somePersonel",
        "lastVisit" : ISODate("2018-10-30T00:00:00Z"),
        "acceptedDate" : ISODate("2018-11-16T00:00:00Z")
}
{
        "_id" : "someotherid",
        "factoryNumber" : 123,
        "factoryName" : "some factory name",
        "visitType" : "audit",
        "personelId" : "somePersonel",
        "lastVisit" : ISODate("2018-10-30T00:00:00Z")
}
>

translate the mongo aggregate query into spring mongodb query