MongoEngine / MongoEngine/mongoengine
MapField with Normalized Keys
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- Dominant language
- Python
- Stars
- 4.3k
- Forks
- 1.2k
- Avg merge
- 4h 41m
- Merged PRs (30d)
- 11
Description
I need a MapField that automatically normalizes the keys I give it. For example, I need the following to work:
import mongoengine
class TestDoc(mongoengine.document):
foo = mongoengine.MapField(mongoengine.IntField())
a = TestDoc()
a.foo['test'] = 1
assert a.foo['TEST'] == a.foo['test']
I've tried subclass the MapField object, but the __setitem__ and __getitem__ methods seem to be ignored. What functions do I override so that I can normalize the keys before setting or getting?
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 at the MapField entry point and trace how key access is handled; the report specifically notes that subclass setitem and getitem are ignored. Determine the supported extension point for key normalization, then verify that 'test' and 'TEST' resolve to the same value.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- mongodb, python
- Domain
- databases
- Issue type
- Feature
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 35/100