Is it possible to delete elements from multiple subarrays within a single large array? The structure I'm working with is as follows:
{
"id": {
"$oid": ""
},
"users": [
{
"friends": [
"751573404103999569"
]
},
{
"friends": [
"220799458408005633"
]
}
]
}
I have a friend's ID that needs to be removed from all the "friends" arrays within the "users" array.
If you want to utilize the positional operator $[] in this scenario, you can follow these steps:
db.no_more_friends.update({ "users.friends":"the_friend_id" },{ $pull:{"users.$[].friends":"the_friend_id"}} ,{multi:true})
It's important to note that using {multi:true} will result in removing the user id from all friends sub-arrays across all documents where "the_friend_id" is located.
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