Find And Modify
On mongoDB collection there is findAndModify command that allows user to return either original or updated document
when performing document update.
This is implemented in MongoStreams as two separate operations:
query("key1" === 1) and updateOne("key" := 33) and for document removal
query("key1" === 1) and removeOne Both variants support additional modifiers:
To return new document instead of old one:
query("key1" === 1) and updateOne("key" := 33).returnNew(true) To first sort the documents before picking one to update:
query().sort("key" Descending) and updateOne("key" := 33) To limit the keys in returned document using projection:
query("key1" === 1).project("key" include) and updateOne("key" := 33) To first sort documents before actually removing them:
query().sort("key" Descending) and removeOne To limit the keys in returned document once removed:
query("key1" === 1).project("key" include) and removeOne| Total for specification CollectionFindAndModifySpec | |
|---|---|
| Finished in | 1 second, 861 ms |
| Results | 7 examples, 0 failure, 0 error |