Cannot apply $addtoset to non-array field

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WebJul 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

mongodb $addToSet to a non-array field when update on upsert

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 … WebDec 21, 2024 · usersEnrolled : [{ iscourseenrolled : { type:Boolean, default: false }, userId: {type: String }, trackTime: {type:String} }], fischer bork

MongoDB Cannot apply $addToSet to non-array in Meteor JS

Web3. 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 ... Web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 … 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 … fischer bordcomputer

Mongoose add element to a document field that is an array

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. WebIf you use $addToSet on a field that is absent from the document to update, $addToSet creates the array field with the specified value as its element. Field is Not an Array If … fischer bottropWebDec 3, 2015 · When I run the function there is someting error Cannot apply $addToSet modifier to non-array\n this is my mongoose model var AnswerSchema = new Schema ( { audio: {type: String}, created: { type: Number }, question: { imgUrl: { type: Array }, subject: { type: String }, }, }); node.js mongodb mongoose mongodb-query Share Follow camping prinsenhof odijk

"WebSep 12, 2014 · Steps To Reproduce: 1. create a new empty collection "users" 2. Execute the following query, should fail > db.users.findAndModify ( {query: … " - Cannot apply $addtoset to non-array field

Cannot apply $addtoset to non-array field

[SERVER-15245] findAndModify fail to addToSet a field, …

WebJun 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. WebMongoDB Documentation

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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 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

WebSep 4, 2015 · But did you read the part about "quoting" and apply it? I think you have not done that. Also, there is zero need to "cast" with Mongoose. If the field type in the schema is ObjectId then mongoose will do the "casting" for you. – 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 …

WebJul 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... 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}

WebAug 18, 2015 · Aug 17, 2015 at 21:48. Add a comment. 0. You should have inserted the first entry in "comments' field wrong. As this is an array you must push the object in comment array . It seems you directly assigned the comment object to "comments" field while inserting first comment. Please check the same and it will be reolved.

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 fischer boutenWebAug 18, 2024 · I got an error: “Cannot apply $addToSet to non-array field. Field named ‘images’ has non-array type object”. Can someone help? You get this error, because … camping près de shediacWebBut 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}}); camping proche berck avec piscineWebMay 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 … fischer botasWebApr 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') ". fischer bottrop busWebMay 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. camping priest lake idahoWebMar 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 … fischer borna