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Questions tagged [findandmodify]

96 questions
11
votes
1 answer

Does findAndModify effectively lock the document to prevent read conflicts?

Assume there is document's structure like below: {_id:"session-01", status:"free"} And there are 2 concurrent operations that perform the findAndModify operation below: db.collection.findAndModify({query:{status:"free"}, update:{status:"occupied"},…
Agung Pratama
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11
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1 answer

findAndModify - MongoError: exception: must specify remove or update

Id like to update an array and return the doc. Is my findAndModify syntax correct? this.becomeFollower = function(title, username, callback){ "use strict" posts.findAndModify({ query: {"title":title, "roster":"yes"}, …
Squirrl
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6
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2 answers

IntelliJ IDEA: how to Find+Replace in selected text?

How can I selected, for instance, 5 lines of code, and replace all instance of myObject1 with myObject2? If subsequent lines of code contain myObject1 reference that I wish not to change. This way I can quickly apply of find & replaces in this scope…
Alex Bollbach
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6
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1 answer

how can I findAndModify one record in mongodb with golang?

I want something like this: find one record in mongo db old_record update this record to new_record return old_record I write code like this: ret = nil // First, Find the obj obj := &orm.QuerySetObj{} err2 :=…
roger
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5
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1 answer

Mongodb counter with initial value not zero

I would like to create a counter that starts at 1000. I.e. upsert a mongodb document as follows if the document does not exist, create it with value 1000 if the document already exists, increment the value +1 The following does not…
Carl D'Halluin
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4
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1 answer

I want to get the findAndModify return value of MongoTemplate as a modified value

I am currently using mongoTemplate in Spring boot like this: public MyEntity update(MyDto dto) { ... MyEntity result = mongoTemplate.findAndModify( query, update, MyEntity.class); return result; } query puts in the Criteria…
hanjiman
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4
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5 answers

find words that matches the 3 consecutive vowels Regex

text = "Life is beautiful" pattern = r"[aeiou]{3,}" result = re.findall(pattern, text) print(result) desired result: ['beautiful'] the output I get: ['eau'] I have tried googling and etc....I found multiple answers but none of them worked!! I am…
Prab
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4
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2 answers

Mongodb findAndModify atomicity

I want to know how to reference the returned document attributes from find and use it within modify. E.x. : var totalNoOfSubjects = 5; db.people.findAndModify( { query: { name: "Tom", state: "active", rating: { $gt: 10 } }, sort: { rating:…
Raghu Katti
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3
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0 answers

Morphia/MongoDb, Using and Index with FindAndModify()

I am currently in the process of refactoring some of our mongo querying code to get rid of methods deprecated in Morphia 1.3. I am running into an issue when trying to run a find and Modify query with an index . At the moment our legacy code is…
Clément Caylux
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3
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1 answer

Issues with mongodb/nodejs/express/mongojs and findAndModify

Currently doing a online course to learn some Node.js, Express, and MongoDB. In this course there is a api section where they teach you to do simple stuff, but i ran in to an issue, the course video shows him updating name of an item, and the api…
Benzon
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3
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1 answer

FindAndUpdate vs Update in mongodb

I am using Update and FindAndModify but now I have read that Update and FindAndModify are atomic(http://docs.mongodb.org/manual/tutorial/model-data-for-atomic-operations/), So if both can do the same job, by querying for item and updating it then…
meso_2600
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3
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0 answers

MongoDB FindAndModify extremely slow

i'm using mongodb and have some trouble with the speed. My collections got bigger and now contains about 7.000.000 items. As a result, the findAndModify query takes about 3 seconds. I have a index on the queried field (in my case "links", which is…
Kai Schlegel
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2
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3 answers

Detect bold texts in a cell and add ";" before those texts

I have 3 columns that have the same pattern. Here is the example: " I Love Chocolate I really love chocolate I want to drink hot chocolate I have a red bike I buy it with my own money I hate mouse I hate mouse since I was little " I want to add…
Ceciliads
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findAndModify with skip

How to skip some documents when using findAndModify (or findOneAndUpdate) in MongoDB? Documentation suggests that it is possible, but findAndModify and findOneAndUpdate don't specify skip argument.
Krzysztof Cybulski
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1 answer

mongodb | How to update(findandmodify) after aggregate

I want to update some of the values according to the result after query execution. What I want to +1 the "comment_sort" value if the condition is true. Condition : If "comment_group" is 1 and "comment_sort" is greater than 0 Original DataBase…
fly high
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