Question

The following query does not work and it keeps giving a weird error:
keys must be strings or symbols

Session.where(:created_at.gte => (Date.today - 30), :created_at.lte => (Date.today).first

Here is the content of the query when I inspect it:

:::::::::::::::::: # selector: {#=>Wed, 04 Jan 2012, #=>Thu, 05 Jan 2012},
options: {},
class: Session,
embedded: false>
:::::::::::::::::: # selector: {#=>Wed, 04 Jan 2012, #=>Thu, 05 Jan 2012},
options: {},
class: Session,
embedded: false>
:::::::::::::::::: # selector: {#=>Wed, 04 Jan 2012, #=>Thu, 05 Jan 2012},
options: {},
class: Session,
embedded: false>

Any ideas on what I might be doing wrong or does mongoid have a bug?

Answer 1

I spoke to the developer of the gem and he says it is supported in rails 3.1 +
Also, we made this work by using a different syntax (similar to javascript).

scope :between, ->(from, to){ where(:created_at => {'$gte' =>  Time.parse(from.to_s)}).and(:created_at => {'$lte' => Time.parse((to + 1.day).to_s) - 1.second }) }

And it turns out this is supported in rails 3.0