Any plan to support mongoid?

[mustela]

[t27duck]

Currently not at this time. I mainly work with relational databases which work well with aggregating data.

[germanotm]

I don't think there is need for a gem for mongo database.
The mongo api already allows you to use $match for filters and $group for dimensions.

Take a look at this piece of code a use another day:

month_start = Date.today.beginning_of_month
month_end = Date.today.end_of_month

filters = {
  "created_at" => {
      "$gte" => month_start,
      "$lt" => month_end
}}

dimensions = { "storage_type" => "$storage_type", "month" => { "$month" => "$created_at" }

storage_size = Storage.collection.aggregate([
  {"$match" => filters },
  {"$group" => { 
    "_id" =>  dimensions }, 
    "value" => { "$sum" => "$value" }}
  }
])

So, at report view, you make a form to select which filters and which dimensions you need. Is indeed much more easy than doing the same thing with ActiveRecord.
You may need to duplicate data to workaround join tables, don't know how it could be made another way.