Rubualizations¶ ↑

Summary

Rubualizations is a ruby gem which converts ruby hashes into data structures which can be used by (Google Visualizations) to create graphs in your web page.

At present it a partial implementation of the (data source specification described here) which I hope will evolve to cover the complete specification.

Usage

Include the module

include Rubualizations::Rails::Tableable

In the class definition would you would like to use the module

Define the columns to use by setting the @cols_def (column definition) attribute in the class where you will be converting your hashes (or in the initialize method)

@cols_def = { 
   "dateplaced" => {id: "A", label: "Date Placed", type: "datetime"}
   "profit" => {id: "B", label: "Profit", type: "number"}
}

According to the google visualization API specification (see examples here)

Then pass the tablize_hashes method a list of hashes which include the attributes defined in the your column definition. In our example this is ‘dateplaced’ and ‘profit’ and return the definitions.

tablize(hash_list, {cols:"dataplaced,profit"})

If you expose the output of this method to the web you can query your data using the query string

?cols=dateplaced,profit

Also see github.com/whatsthebeef/rubualizations-rails for rails specific gem which handles ActiveRecords as well as hashes