MongoEngine / MongoEngine/mongoengine
update() function disregards limit()
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- Dominant language
- Python
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Description
Lets say I have a 10 documents of Item in the database.
Lets retrieve 3 documents of Item matching some condition using limit().
documents = Item.objects(somefield=somecondition).limit(3)
Now if I do
documents.update(), mongoengine updates all the documents in the database matched by the query not just the 3 documents I have limited my query to.
Hope this gets fixed.
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start by reproducing the issue with the Item.objects(...).limit(3) query followed by documents.update(). Trace the update entry point and its query construction to determine how the limit is lost; done means only the three limited documents are updated, with regression coverage for this example.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- mongodb, python
- Domain
- databases
- Issue type
- Bug
- Difficulty
- 3/5
- Estimated time
- 1-2 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 35/100