Reportable

Reportable allows for the easy creation of reports based on ActiveRecord models.

Usage

Usage is pretty easy. To declare a report on a model, simply define that the model provides a report:

class User < ActiveRecord::Base

  reportable :registrations, :aggregation => :count

end

The reportable method takes a bunch more options which are described in the API docs. For example you could generate a report on the number of updated users records per second or the number of registrations of users that have a last name that starts with 'A' per month:

class User < ActiveRecord::Base

  reportable :last_name_starting_with_a_registrations, :aggregation => :count, :grouping => :month, :conditions => ["last_name LIKE 'A%'"]

  reportable :updated_per_second, :aggregation => :count, :grouping => :second, :date_column => :updated_at

end

For every declared report a method is generated on the model that returns the date:

User.registrations_report

User.last_name_starting_with_a_registrations_report

User.updated_per_second_report

Working with the data

The data is returned as an Array of Arrays of DateTimes and Floats, e.g.:

[
  [DateTime.now,          1.0],
  [DateTime.now - 1.day,  2.0],
  [DateTime.now - 2.days, 3.0]
]

Reportable provides a helper method to generate a sparkline image from this data that you can use in your views:

<%= sparkline_tag(User.registrations_report) %>

Installation

To install Reportable, simply run

[sudo] gem install reportable

and add it to your application's dependencies in your environment.rb:

config.gem 'reportable', :lib => 'saulabs/reportable'

When you installed the gem, you have to generate the migration that creates Reportable's cache table:

./script/generate reportable_migration create_reportable_cache

and migrate:

rake db:migrate

Plans

  • add support for Oracle and MSSQL
  • add support for DataMapper
  • add more options to generate graphs from the data
  • add the option to generate textual reports on the command line

Authors

© 2008-2010 Marco Otte-Witte (http://simplabs.com), Martin Kavalar (http://www.sauspiel.de)

Released under the MIT license