Cannot apply $addtoset to non-array field
WebMar 12, 2024 · Just a guess but are you sure you're looking at the right data / database. Based on the data you posted your update_one() won't update that record because it doesn't match your filter {"charID": 0} WebDec 19, 2024 · Can we able to use "_id" : ObjectId ("4faaba123412d654fe83hg876") instead of user_id from the above example. Because i am getting exception like this "Cannot …
Cannot apply $addtoset to non-array field
Did you know?
WebMongoDB Documentation WebMar 26, 2014 · Teams. Q&A for work. Connect and share knowledge within a single location that is structured and easy to search. Learn more about Teams
WebFeb 15, 2013 · 1 $addToSet will create the arr field for a doc where it doesn't exist, so what's probably happening is that you have a doc where arr exists but isn't an array. – … WebMay 17, 2024 · And that is the problem. Basically, when the arrayfilter named grp meets a null object, it raises an error because it can't apply on it. So the solution to make the request work was to make sure every document in the collection had this group array initialized (even if it's empty, it doesn't matter). Once I did this there was no problem anymore.
WebBut when I try $addToSet to array, I get MongoDB cannot apply $addToSet modifier to non-array. 'click a.yes': function (event) { if (Meteor.user ()) { event.preventDefault (); var postId = Session.get ('selected_post'); Posts.update (postId, {$addToSet: {users: Meteor.user ()}}); Posts.update (postId, {$inc: {'score' : 1}}); WebJul 2, 2011 · It is the server that requires the element value to be an array (and BSON null is not an array). You could also use the [BsonIgnoreIfNull] attribute to prevent an
WebJul 11, 2015 · There is in fact "no order" to the execution of different update operators, so their is no guarantee that the $addToSet occurs before the $push. In fact they are likely acting in parallel, which is why the error and that this is not allowed. The answer of course is "two" update statements.
WebDec 8, 2024 · Field named 'age' has non-array type int; nested exception is com.mongodb.MongoWriteException: Cannot apply $addToSet to non-array field. … how far back can you trim arborvitaeWeb3. First of all, get rid of this code as you do not need it and you are actually defining a "static" signature that you are not even using: userSchema.statics.findAndModify = function (query, sort, doc, options, callback) { return this.collection.findAndModify (query, sort, doc, options, callback); } You should have a declaration for your User ... how far back did people moisturize their skinWebMar 19, 2015 · The logic cannot work as a new document will be created whenever the array element was not found, rather than append to the array element like you want. … hidive loadingWebFeb 3, 2024 · Per the MongoDB docs to append an array to another array you would have to use the $each modifier. So adjusting your updates, @varunjayaraman , to look like this: const update = await … hidive legend of the galactic heroesWebIf the value is a document, MongoDB determines that the document is a duplicate if an existing document in the array matches the to-be-added document exactly; i.e. the existing document has the exact same fields and values and the fields are in the same order. As such, field order matters and you cannot specify that MongoDB compare only a subset … hidive membership costWebJun 1, 2024 · Is the specified value is an array in the $addToSet operator, then this operator will append the whole array as a single item. Or if you want to add items separately in the array, then use $each modifier. This operator does not work with non-array fields. If the value is a document, then MongoDB checks if the document exists or not in the array. how far back do accurate weather records goWebJul 28, 2024 · $addToSet operator is an easy to use method of adding unique values to an array Be aware of the behaviour when using $addToSet operator with Mongoose and javascript objects $addToSet... hidive new anime