I have a collection in MongoDB, which is like the following:
{
"_id" : "5327010328645530500",
"members" : [
{
"participationCoeff" : 1,
"tweetID" : "5327010328645530500"
},
{
"participationCoeff" : 1,
"tweetID" : "2820402625046999289"
},
{
"participationCoeff" : 0.6666666666666666,
"tweetID" : "6122060484520699114"
},
{
"participationCoeff" : 1,
"tweetID" : "4656669980325872747"
}
]
}
{
"_id" : "2646953848367646922",
"members" : [
{
"participationCoeff" : 1,
"tweetID" : "2646953848367646922"
},
{
"participationCoeff" : 0.75,
"tweetID" : "7750833069621794130"
},
{
"participationCoeff" : 0.5,
"tweetID" : "6271782334664128453"
}
]
}
The collection has clusters, where a cluster has an _id field and a member field. Members field is an array of documents, having the following format.
{
"participationCoeff" : 1,
"tweetID" : "5327010328645530500"
}
Now, from time to time, I have to delete these sub-documents in member's attributes of cluster document, by matching tweetID.
However, I cannot find a query that makes it possible to achieve this effect. A tweetID will participate in many clusters, and hence, it will appear in multiple sub-documents of the 'members' attribute of different clusters. I want to run a bulk $pull operation so that I can remove all the sub-documents from all the clusters (i.e., their members attribute) that match on a particular tweetID.
Some help and intuition will be really helpful.
Back