Add support for $lookup to aggregation. [DATAMONGO-1326]

[spring-projects-issues]

Christoph Strobl opened DATAMONGO-1326 and commented

Performs a left outer join to another collection in the same database.

{
   $lookup:
     {
       from: <collection to join>,
       localField: <field from the input documents>,
       foreignField: <field from the documents of the "from" collection>,
       as: <output array field>
     }
}

---

Reference URL: https://docs.mongodb.org/master/reference/operator/aggregation/lookup/

Referenced from: pull request #344

1 votes, 2 watchers

[spring-projects-issues]

Alessio Fachechi commented

Hi Christoph Strobl, I already added the support for $lookup operation. If you're interested I can write some tests and make a pull request

[spring-projects-issues]

Christoph Strobl commented

thanks Alessio Fachechi a PR would be warmly welcome. Please do not forget to sign the CLA, if you haven't done already, when submitting it. Looking forward to it!

[spring-projects-issues]

Alessio Fachechi commented

Done, Christoph Strobl!

[spring-projects-issues]

Christoph Strobl commented

thanks Alessio Fachechi. Can you please add your CLA Nr. as a comment to the PR or this issue. Then I can go on and take it from here. Thanks!

[spring-projects-issues]

Alessio Fachechi commented

Christoph Strobl, my CLA nr. is 164120160221125037. Thanks to you, it was a pleasure to give my small contribution!