Improve 'where' compatibility with ActiveRecord

[norchow]

The current implementation returns an Array, which is not queryable (in comparison with ActiveRecord::Relation)

Possible implementation:

module Model
  def self.where(*args)
    //Check if args is a hash and filter values
    filtered_values = all
    StaticModelArray.new(filtered_values)
  end
end

class StaticModelArray < Array
  def initialize(values)
    @values = values
  end

  def find(id)
    @values.find{|v| v.id == id.to_d}
  end
end