FindAndModify

NB: This package isn't actively maintained. It works with MongoDB v2.6, and probably works with later versions of Mongo as well, although this hasn't been tested.

This Meteor package adds findAndModify support to Meteor's MongoDB Collections. It should work on both the server and client. It adapts and cleans up some code found on meteor/meteor#1070.

Installation

meteor add fongandrew:find-and-modify

Usage

TestCollection.findAndModify({
  query: {name: "Batman"},
  update: {$set: {name: "Bruce Wayne"}},
  sort: {age: 1},
  upsert: true,
  new: true,
  fields: {favoriteColor: 0}
});

TestCollection.findAndModify({
  query: {name: "Robin"},
  sort: {age: -1},
  skip: 2,  // available only client side
  remove: true
});

See mongo documentation for arguments details: http://docs.mongodb.org/manual/reference/method/db.collection.findAndModify/

Known Issues

The client-side code (and the tests for the client-side code) works on the assumption that is running in a Meteor method simulation. If run outside of a simulation, the client-side code will use an _id selector in lieu of your original query to get around Meteor's restriction on _id only updates for untrusted (client) code. This may result in unusual errors or behavior if your modifier is dependent on your query selector (e.g. as with positional operators).

For consistency with Meteor's default behavior, upserts using findAndModify use _ids consisting of a 17 character string rather than an ObjectId. This behavior has only been tested with Mongo 2.6+ and may result in issues with Mongo 2.4.x.

License

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.