While maps that have numeric keys work if there is only one map with an integer key, when there are multiple maps with numeric keys in a given query, it fails.
Take the following example for a map called outer with numeric keys holding reference to another object with a map called inner with numeric keys: Updates that are meant to generate {"$set": {"outerMap.1234.inner.5678": "hello"}} are instead generating {"$set": {"outerMap.1234.inner.inner": "hello"}}, repeating the later map property name instead of using the integer key value.
This commit adds unit tests both for the UpdateMapper and QueryMapper, which check multiple consecutive maps with numeric keys, and adds a fix in the KeyMapper. Because we cannot easily change the path parsing to somehow parse path parts corresponding to map keys differently, we address the issue in the KeyMapper. We keep track of the partial path corresponding to the current property and use it to skip adding the duplicated property name for the map to the query, and instead add the key.
This is a bit redundant in that we now have both an iterator and an index-based way of accessing the path parts, but it gets the tests passing and fixes the issue without making a large change to the current approach.
Fixes: #3688
Original Pull Request: #3689
The field projection conversion should actually only map field names and avoid value conversion. In the MongoId case an inclusion parameter (1) was unintentionally converted into its String representation which causes trouble on Mongo 4.4 servers.
Fixes: #3668
Original pull request: #3678.
spring-projects/spring-data-commons#2293 changed how PersistentProperty paths get resolved and considers potentially registered converters for those, which made the path resolution fail in during the query mapping process.
This commit makes sure to capture the according exception and continue with the given user input.
Fixes: #3659
Original pull request: #3661.
This commit fixes an issue with the pattern used for detecting $or / $nor which also matched other keywords like $floor.
Closes: #3635
Original pull request: #3637.
This commit fixes an issue where using a simple return type leads to NPE when the actual aggregation result does not contain any values.
Closes: #3623
Original pull request: #3625.
Christoph Strobl
David Julia
Gatto
Mark Paluch
larsw
Greg L. Turnquist
Clément Petit