SimpleMetric

Rails metric solution. Store data-points, display graphs. Based on dygraphs js lib.

Example

Usage

Add some data points:

SimpleMetric::Metric.add_data_point "Users count", 30.days.ago, 10
SimpleMetric::Metric.add_data_point "Users count", 20.days.ago, 15
SimpleMetric::Metric.add_data_point "Users count", 10.days.ago, 25

Add many data points:

SimpleMetric::Metric.add_data_points(
  ["Users count", 30.days.ago, 10],
  ["Sales count", 10.days.ago, 1000]
)

Display graph into your erb template:

<%= simple_metric_graph "Users count" %>

Plot multiple metrics:

<%= simple_metric_graph "metric_1", "metric_2" %>

Add custom titles:

<%= simple_metric_graph ["metric_1", "Title for metric 1"], ["metric_2", "Title 2"] %>

Installation

Add this line to your application's Gemfile:

gem 'simple-metric'

And then execute:

$ bundle

Or install it yourself as:

$ gem install simple-metric

Add migration

By generator:

rails g active_record:simple_metric Metric

or by rails migration:

$ rails g migration create_metrics

Insert that:

...

def change
    create_table :metrics do |t|
    t.string :key
    t.text :data_set

    t.timestamps
    end

    add_index :metrics, :key, :unique => true
end

...

Run migration:

$ rake db:migrate

Include dygraph js lib into your application.js:

//= require dygraph-combined

Contributing

1. Fork it ( https://github.com/sergio-fry/simple-metric/fork )
2. Create your feature branch (git checkout -b my-new-feature)
3. Commit your changes (git commit -am 'Add some feature')
4. Push to the branch (git push origin my-new-feature)
5. Create a new Pull Request