Question

I am trying to query MongoMapper with “or” statement. I’ve found an example of how to do it with mongo directly:

db.foo.find( { $or : [ { a : 1 } , { b : 2 } ] } )

so I thought the MongoMapper query should be looks like this:

Foo.all(:or => [ {:a => 1}, {:b => 2} ])

but it doesn’t.

Can anyone help?

Answer 1

You’d want this:

Foo.where(:$or => [ {:a => 1}, {:b => 2} ])

or this for MongoMapper:

Foo.all(:$or => [ {:a => 1}, {:b => 2} ])

MongoMapper queries are pretty much a straight transliteration of the queries you’d use in the MongoDB shell.