503), Mobile app infrastructure being decommissioned, Unique validation not working in Mongoose, restrict to store duplicate values in mongodb, after saving in mongoose {strict : false},can't edit after findOne(). This behavior happen also if you have left some duplicates in Mongo. Protecting Threads on a thru-axle dropout. db.users.createIndex({email: 1}, {unique: true}). But maybe this will not work when there is already a document and after that, you have changed the schema of the User. PUT/ update operation fails in $resource AngularJS client in rest based app (mongoose insert / update issue). It is quite strange because for some users just dropping a single collection worked. Try deleting the database and running your program again, this is maybe because you add the constraint after the database creation and mongoose no recreate the index. why mongoose unique not work at all in this script. and now, when you run mongoose, it will create new index, Is it enough to verify the hash to ensure file is virus free? apply to documents without the need to be rewritten? mongo I dropped the database, then restarted the MongoDB Server service. Validation is middleware. Not the answer you're looking for? rev2022.11.7.43014. Let's understand more about this with some examples. In fact it does create such an index in the database for that collection. In my case mongoose was outdated. Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide, Bad news, it is still problem with mongod v2.4.3, mongoose v3.6.20. Does subclassing int to forbid negative integers break Liskov Substitution Principle? apply to documents without the need to be rewritten? 1. But it would still be nice to let it be handled natively. I'm trying to let MongoDB detect a duplicate value based on its index. TopITAnswers. Regarding step 1, note that from Mongo's docs: MongoDB cannot create a unique index on the specified index field(s) if the collection already contains data that would violate the unique constraint for the index. I added the Foo.createIndexes() line b.c. How do planetarium apps and software calculate positions? If the other methods did not work for you, I believe this will do the job. ie. Creating node application And Installing Mongoose: I now understand that indexes have to be created explicitly before populating duplicates, else mongoose skips creating the index. var SimSchema = new Schema({ msisdn : { type : String , unique : true, required : true, dropDups: true }, imsi : { type : String , unique : true, required : true . Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide, I deleted my database and then created some new users and the, MongoDB + Mongoose: Unique: true not working properly [duplicate], Stop requiring only one assertion per unit test: Multiple assertions are fine, Going from engineer to entrepreneur takes more than just good code (Ep. Site design / logo 2022 Stack Exchange Inc; user contributions licensed under CC BY-SA. As in: email : {type: String, trim: true, index: true, unique: true, sparse: true} Or in the shell: db.users.ensureIndex({email: 1}, {unique: true, sparse: true}); What was the significance of the word "ordinary" in "lords of appeal in ordinary"? Prospect caseworkers CaseWorker 6 Here is my model: const mongoose = require(' rev2022.11.7.43014. Run a shell script in a console session without saving it to file. for the unique thing.. This solution is solid and production ready. Mongoose pre.remove middleware of objects in array are never called, MongoDB Cannot find module '/booksSchema' on Mac Catalina. How to understand "round up" in this context? Are certain conferences or fields "allocated" to certain universities? Please tell if that worked for you as well. You can also resolve this issue by dropping the index; let's assume you want to remove the unique index from collection users and field username, type this: If the table/collection is empty, then create unique index for the field: If the table/collection is not empty, then drop the collection and create index: check that autoIndex in the schema is true, it maybe set false(default true) when you use mongoose.connect options. You can disable automatic validation before save by setting the validateBeforeSave option. Light bulb as limit, to what is current limited to? . Our America's Best Restaurants. Like most proverbs, this one captures at least part of the truth, but is also in part obvio For example, below is how you can tell Mongoose that a user's email must be unique. Run a shell script in a console session without saving it to file, Finding a family of graphs that displays a certain characteristic. This happens because you're saving the duplicated document before mongoose has finished creating the index. 2) From the mongo shell, execute the command: db.users.createIndex ( {email: 1}, {unique: true}) Regarding step 1, note that from Mongo's docs: MongoDB cannot create a unique index on the specified index field (s) if the collection already contains data that would violate the unique constraint for the index. Some of them just needed to drop the database. Then just restart your app (mongoose). Is it possible for a gas fired boiler to consume more energy when heating intermitently versus having heating at all times? . Here's the section. 6 comments MickL commented on May 4, 2021 Bug Report Current behavior Setting the prop unique: true has no effect if type is not set. How actually can you perform the trick with the "illusion of the party distracting the dragon" like they did it in Vox Machina (animated series)? I want to make the key project unique across that collection but i cant getting this working, i found similar problem here. What is rate of emission of heat from a body at space? Protecting Threads on a thru-axle dropout. How to rotate object faces using UV coordinate displacement. How can I write this using fewer variables? All Languages >> Javascript >> mongoose unique = true "mongoose unique = true" Code Answer. It means that, if you have a schema like this one: mongoose.Schema({ name: { type: String, unique: true } }); Unique index not working with Mongoose / MongoDB. Mongoose creates the indexes on the go, after your app has started. Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide, mongoose unique: true not work [duplicate], Stop requiring only one assertion per unit test: Multiple assertions are fine, Going from engineer to entrepreneur takes more than just good code (Ep. It is showing Http_Header error. Readme mongoose-unique-validator. Mougins Tourism: Tripadvisor has 23,512 reviews of Mougins Hotels, Attractions, and Restaurants making it your best Mougins resource. Creating a Mongoose model comprises primarily of three parts: 1. Mongoose registers validation as a pre ('save') hook on every schema by default. So here's the fix. Please be sure to answer the question.Provide details and share your research! Would a bicycle pump work underwater, with its air-input being above water? Questo funziona per me, sto semplicemente usando this come riferimento per il modello. The only answer to the question that addresses the problem rather than revolves around it. When the migration is complete, you will access your Teams at stackoverflowteams.com, and they will no longer appear in the left sidebar on stackoverflow.com. The same issue has been expressed here: https://github.com/LearnBoost/mongoose/issues/56, but that thread is old and lead to nowhere. Should I avoid attending certain conferences? For example: Now, when you try to save the second document (the duplicated one), your MongoDB will raise an error, because your save calls will just run after the indexes were created. Find centralized, trusted content and collaborate around the technologies you use most. So for something like this: I can save 2 users with the same email. rev2022.11.7.43014. I found this solution at: https://dev.to/emmysteven/solved-mongoose-unique-index-not-working-45d5 This is disabled by default because many validators rely on positional args , so turning this on may cause unpredictable behavior in external validators. mongoose-unique-validator is a plugin which adds pre-save validation for unique fields within a Mongoose schema. "Sticks and stones may break my bones, but words will never hurt me," the proverb goes. This is something which I hope is fixed in the native mongo driver. Does subclassing int to forbid negative integers break Liskov Substitution Principle? Plugin for Mongoose that turns duplicate errors into regular Mongoose validation errors. Mongoose creates the indexes on the go, after your app has started. Are witnesses allowed to give private testimonies? WriteResult({ "nInserted" : 1 }), According the documentation : https://docs.mongodb.com/v2.6/tutorial/modify-an-index/. We'd simply add the additional property and Mongoose will take care of the rest! Mongodb (mongoose)expiresAfterSeconds (TTL). Why is there a fake knife on the rack at the end of Knives Out (2019)? Guessing the issue is that duplicates already existed before adding the index so in a production db I would need to remove duplicates and then restart? My Candidate Profile DB Model const candidateProfileSchema=new Schema({ candidateId:{ type:mongoose.Types.ObjectId, }, email:{ type:String, unique:true, Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide, @Lukas I exactly quoted from a comment in an example from the official docs. Thanks! How to do it? Site design / logo 2022 Stack Exchange Inc; user contributions licensed under CC BY-SA. But avoid . You don't really need to use 'unique: true' or the mongoose-unique-validator plugin, you can simply use a custom async validate() in your type definition that uses countDocuments(): Inside your Schema (assuming your Schema is for a User model), If you wouldn't have specified to auto index the data I defined the schema as follows, but I can still create a unit that has the same type, parent and name. If he wanted control of the company, why didn't Elon Musk buy 51% of Twitter shares instead of 100%? Please check the Mongoose documentations Indexes https://mongoosejs.com/docs/guide.html#indexes, in your connect function do not forget to mention All I was missing was the, for some reason passing unique: true works but as indexes: {unique:true} dont.. ty. What good are belittling comments that don't help in any way. Why does MongoDB allow creating identical users? Mongoose duplicates with the schema key unique. Not the answer you're looking for? Mongoose creates the indexes on the go, after your app has started. If he wanted control of the company, why didn't Elon Musk buy 51% of Twitter shares instead of 100%? What's the best way to roleplay a Beholder shooting with its many rays at a Major Image illusion? Is there a term for when you use grammar from one language in another? 503), Mobile app infrastructure being decommissioned, MongoDB + Mongoose: Unique: true not working properly, Unique validation not working in feathers/mongoose. Did the words "come" and "home" historically rhyme? Site design / logo 2022 Stack Exchange Inc; user contributions licensed under CC BY-SA. For Dropping the collection, you can enter this: When I encountered this problem, I tried dropping the database, re-starting the server (nodemon) many times and none of the tricks didn't work at all. mongoose distinct and populate with documents, How to handle Mongoose DB connection interruptions. Is it possible for a gas fired boiler to consume more energy when heating intermitently versus having heating at all times? This makes error handling much easier, since you will get a Mongoose validation error when you attempt to violate a unique constraint, rather than an E11000 error from MongoDB. To "tell" Mongoose that the value of a Mixed type has changed, call the .markModified (path) method of the document passing the path to the Mixed type you just changed. Are witnesses allowed to give private testimonies? How to throw exception using nest js if user exist on mongo and else create the user? addcodings_mongodb So for something like this: User = new Schema ({ email: {type: String, index: {unique: true, dropDups: true}} }) I can save 2 users with the same email. Is it enough to verify the hash to ensure file is virus free? Why is the rank of an element of a null space less than the dimension of that null space? mongoose-unique-validator is a plugin which adds pre-save validation for unique fields within a Mongoose schema. To prevent this, you can handle this error this way : 2 . in your connect function add this to the options object(2nd param). A planet you can take off from, but never land back. How can I write this using fewer variables? Concealing One's Identity from the Public When Purchasing a Home. What is this political cartoon by Bob Moran titled "Amnesty" about? For most of our users this won't be a problem, but is an edge case to be aware of. https://github.com/LearnBoost/mongoose/issues/56, https://docs.mongodb.com/v2.6/tutorial/modify-an-index/, https://dev.to/emmysteven/solved-mongoose-unique-index-not-working-45d5, https://mongoosejs.com/docs/guide.html#indexes, Stop requiring only one assertion per unit test: Multiple assertions are fine, Going from engineer to entrepreneur takes more than just good code (Ep. i check my backend code nothing was wrong , neither i was giving the same username , the culprit was mongoDb ,all u have to do is go to your data collection , then to index and the remove the index and your are good to go restart your app and then it will work. Is this homebrew Nystul's Magic Mask spell balanced? So, to ensure that your document will be saved only after the indexes were created, you have to listen to the index event of your model. for example in my code I did this: I also dropped the collection that I have problem with and recreated it to make sure that it will work. Mongoose duplicates with the schema key unique, docs.mongodb.com/v2.6/tutorial/create-a-unique-index/, mongoosejs.com/docs/schematypes.html#schematype-options, Stop requiring only one assertion per unit test: Multiple assertions are fine, Going from engineer to entrepreneur takes more than just good code (Ep. When the Littlewood-Richardson rule gives only irreducibles? Remember to make it async for indexing to fully complete: Just to point out you don't necessary need to delete or drop the affected collection. You could add the following book: {_id: "book1", title: "Name of Book 3"} Notice it has the same ID as an existing book. Also reindexing. Using this command you can create an index on email. Or you can just drop the collection and add the user again. HI below is my Schema in which unique is not working const user = new Schema({ userName: { type: String, required: true, unique: true }, quiz:[] }); but i have one more Schema in which unique is working and the schema is const user = new. Restart the Node.js server, that uses mongoose library. You can manually run validation using doc.validate (callback) or doc.validateSync () You can manually mark a field as invalid (causing validation to . Can lead-acid batteries be stored by removing the liquid from them? Is it enough to verify the hash to ensure file is virus free? Thanks for contributing an answer to Stack Overflow! I was getting the following deprecation warning when the code was being ran: I'm not sure if Foo.createIndexes() is asynchronous, but AFAIK things seem to be working fine. A Mongoose model is a wrapper on the Mongoose schema. How can you prove that a certain file was downloaded from a certain website? If you wait for the index to be built, you can you Mongoose's promised based event, Model.init (), as shown below: Mongoose is a MongoDB object modeling and handling for a node.js environment. var UsuarioSchema = new Schema ( { email : { type : Email, index : { unique : true }, required : true }, //some other fields, but not required, hopefully, for this sample code test_expira : { type : Date, default : Date . Note New Internal Format There is no way in mongo (as far as I know) to make the books array unique based on books._id. This feature is implemented as a separate plugin because mongoose-unique-array does much more than simply create a unique index, it also ties in to . how to make a variable a unique key in mongoose? Set to false to disable buffering; on all models associated with this connection. What is the rationale of climate activists pouring soup on Van Gogh paintings of sunflowers? Unique seems to work on one of my hosts, but fails to enforce uniques using exactly same node/mongoose code on a different host. Which finite projective planes can have a symmetric incidence matrix? Mougins, Provence-Alpes-Cte d'Azur, France | House For Sale | 1,615,000 - In a confidential and residential area of Mougins, in a domi- nant position, in a. I found the following work around, through Robo 3T: This will make sure no duplicate emails are saved in the MongoDB. That worked fine for me. Tengo el siguiente esquema (disculpas que est en CoffeeScript)Cmo utilizar mangosta findOne Schema = mongoose.Schema AuthS = new Schema auth: {type: String, unique: true} nick: String time: Date Auth = mongoose.model 'Auth', AuthS 503), Mobile app infrastructure being decommissioned. Connect and share knowledge within a single location that is structured and easy to search. as the 2nd arg to the validator function. Restarting and using plugins didn't work for me plus it a little overkill to use plugins for something we're all sure mongo could do on it's own. var UsersSchema = new Schema ({ name : {type: String, trim: true, index: true, required: true}, email : {type: String, trim: true, index: true, unique: true} }); 'email' in this case is not required but if 'email' is saved I want to make sure that this entry is unique (on a . your indexes again, so, drop colleciton's existing indexes firstly, I was trying to populate a db with data which had duplicates and Mongoose never stopped me from doing it in spite of adding a unique index. above process solved my problem. 1) npm install --save mongoose-unique-validator. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. Duplicate documents already created in DB before defining this property You might have already added some duplicate data in the database so mongoose and MongoDB simply doesn't check unique field because it's already messed up Delete the messed data from the MongoDB collections page to solve it 2. I have a mongo model like this:- var mongoose = require("mongoose"); const postModel = new mongoose.Schema({ postId: { type: String, unique: true, required . Automate the Boring Stuff Chapter 12 - Link Verification, Finding a family of graphs that displays a certain characteristic. As of MongoDB v1.8+ you can get the desired behavior of ensuring unique values but allowing multiple docs without the field by setting the sparse option to true when defining the index. Usage Yarn: yarn add mongoose-unique-validator Auto Indexing or Create index is false By default, it remains false but when you mention it, it returns true and checks if the particular value is unique or not. enforces uniqueness for the indexed fields. Mongoose. If your MongoDB is working as a service (easy way of finding this is if you do not need to connect to the database without starting the mongod.exe file via terminal), then after doing the changes you might need to restart the service and/or drop your database fully. By default, you will see the. Cant get mongoose-unique-validator to work, What is the proper way to validate email uniqueness with mongoose?, Mongoose unique validator in nestjs, Mongoose valid unique, Why unique : true schema validation is not working in mongoose? Usage Yarn: yarn add mongoose-unique-validator I went to Google as usual to seek solution to this abnormality, here are the thing I tried that didn't work: UserSchema.index ( { username: 1, email: 1 }, { unique: true}); when this one too didn't work, I was also asked to do modify my code with this: import uniqueValidator from 'mongoose-unique-validator' // UserSchema = Schema ( {}) etc. How to understand "round up" in this context? A Mongoose schema defines the structure of the document, default values, validators, etc., whereas a Mongoose model provides an interface to the database for creating, querying, updating, deleting records, etc. email: { type: String, index: true, unique: true, required: true, uniqueCaseInsensitive: true }. Why are there contradicting price diagrams for the same ETF. My profession is written "Unemployed" on my passport. I would like to have a combination of 3 keys (type, parent and name) as unique compound index. To add a unique index to a single column, we simply add a unique property to the field. Stack Overflow for Teams is moving to its own domain! Unix to verify file has no content and empty lines, BASH: can grep on command line, but not in script, Safari on iPad occasionally doesn't recognize ASP.NET postback links, anchor tag not working in safari (ios) for iPhone/iPod Touch/iPad, Adding members to local groups by SID in multiple languages, How to set the javamail path and classpath in windows-64bit "Home Premium", How to show BottomNavigation CoordinatorLayout in Android, undo git pull of wrong branch onto master, Mongodb aggregate $push with $cond and $each, Find if object is changed in pre-save hook mongoose, Mongoose validation: required : false, validate : regex, issues with empty values. [obj.propsParameter=false] Boolean If true, Mongoose will pass the validator properties object (with the validator function, message, etc.) var Comment = new mongoose.Schema({ id: { type: ObjectId, required: true }, comment: { type: String }, replies: [ this ], }) ; Why am I getting some extra, weird characters when making a file from grep output? Thanks for contributing an answer to Stack Overflow! To restart a service search Services on the Windows search bar then find the MongoDB service, double click to open then stop and start the service again. Newest answer: there is no need to restart mongodb at all, Try deleting the database and running your program again, this is maybe because you add the constraint after the database creation and mongoose no recreate the index.
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