yesodweb / yesodweb/persistent
MongoDB's `nestIn` and `nestNotIn` are impossible to use and should be removed
Open
Nobody has claimed this yet.
- Dominant language
- Haskell
- Stars
- 486
- Forks
- 306
- PR merge metrics
- No merged PRs in 30d
Description
nestNotIn ($nin) takes an array of values and filters out any record where the field is an element of this array.
In the persistent library though, nestNotIn does not take a collection such as a list or set and instead takes a single element - this is just nonsense.
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
The issue names MongoDB's nestIn and nestNotIn but no files or tests. Start by locating their definitions and MongoDB implementation in the persistent source, then compare the accepted values with MongoDB's $nin semantics. Done means the intended removal is applied consistently and the affected behavior is covered by the repository's existing checks.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- haskell, mongodb
- Domain
- databases
- Issue type
- Bug
- Difficulty
- 3/5
- Estimated time
- 1-2 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 35/100