Cannot apply $addtoset to non-array field
WebDec 8, 2024 · Field named 'age' has non-array type int; nested exception is com.mongodb.MongoWriteException: Cannot apply $addToSet to non-array field. … WebApr 7, 2016 · Viewed 198 times 0 When adding a value into a array field of a class, I am getting the error given below: " Cannot apply $addToSet to a non-array field. Field named 'chat_user_ids' has a non-array type NULL in the document _id: ObjectId ('5705fd637261695baa0f0000') ".
Cannot apply $addtoset to non-array field
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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 … WebMar 15, 2016 · If you want to access a ForeignKey field from an instance you can not access it directly as you did here {% for user in current_folder.company.members.all %} ForeignKey field is a company so it should be current_folder.company_set () Note: ForeignKey returns a set of objects. In your case a set of companies. That's why it …
WebMay 31, 2011 · 1 Answer. Sorted by: 2. If you want add setting item to the Settings [] array of Application collection you should use ToBsonDocument () extention method from MongoDB.Bson namespace: var update = Update.AddToSet ("Settings", setting.ToBsonDocument ()); You no need create BsonArray. Share. Improve this … 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. – …
WebIf 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 … WebAug 15, 2012 · Teams. Q&A for work. Connect and share knowledge within a single location that is structured and easy to search. Learn more about Teams
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Web您选择 $addToSet 是因为您希望项目是唯一的,但实际上您确实希望它们仅由“a”唯一。 所以 $addToset 不会这样做,而您需要“测试”存在的元素。 但这里真正的问题是不可能同 … fishing mt lemmon azWebFeb 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 … fishing mudgeeWebпытается найти максимальное количество вхождений за время T-SQL. У меня есть данные записи процесса StartDateTime и EndDateTime (оба DATETIME2 ) за весь год 2013 года. can bus checkWebJul 24, 2010 · Cannot apply $addToSet modifier to non-array when I try to run User.collection.update ( {'id'=> current.id}, {'$addToSet'=> { 'following' => current.id}}) User.collection.update ( {'id'=> user.id}, {'$addToSet'=> { 'following' => user.id}}) or the mongomapper version fishing mt pleasant scWebMay 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. can bus collision detectionWebJul 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... fishing mudeford quayWeb会产生这样的错误: Cannot apply $addToSet to a non-array field 但改成之后: db.test.update ( {name: "abc123", "config.a" : { $in : [1]} }, { $addToSet : { config: {a:1,b:2} } }, true ) It works fine. 还引用了此链接: Answer 任何人都可以解释发生了什么吗? "config.a":1 会将 config 变成一个对象? "config.a": {$in: [1]} 不会在哪里? 最佳答案 您在这里尝试 … canbus chrysler