Whenever I attempt to implement the code snippet below for MongoDB, I encounter this error:
var updateDoc = {
$set: {
energy: {
$cond: {
if: { $gt: [ { $add: [ "$energy", 20 ] }, 100 ] },
then: 100,
else: { $add: [ "$energy", 20 ] }
}
}
}
}Is there a solution to resolve this issue?
If you are using MongoDB version 4.2 or later, you can utilize the update with aggregation pipeline feature by wrapping your updateDoc object in an array.
var updateDoc = [
{
$set: {
energy: {
$cond: {
if: { $gt: [{ $add: ["$energy", 20] }, 100] },
then: 100,
else: { $add: ["$energy", 20] }
}
}
}
}
]
Check out this MongoDB Playground for testing your queries.
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