By David Berube
ISBN-10: 1430205326
ISBN-13: 9781430205326
ISBN-10: 1590599330
ISBN-13: 9781590599334
Company intelligence and real-time reporting mechanisms play a big position in any of brand new forward-looking company plans. With a lot of those suggestions being moved to the net, the preferred Rails framework and its underlying Ruby language are enjoying an immense position along internet prone in construction the reporting recommendations of the next day to come. functional Reporting with Ruby and Rails is the 1st ebook to comprehensively introduce this well known framework, guiding readers via a wide-ranging array of gains. word this is not a staid consultant to producing conventional stories, yet relatively exhibits readers how the Ruby language and Rails framework can create actually compelling reporting providers via plugging into renowned third-party functions and providers similar to Google AdWords, UPS.com, iTunes, and SalesForce.com. See the next assets for additional information on Ruby and Rails: Ruby undertaking site: http://www.ruby-lang.org/ Rails venture website: http://www.rubyonrails.org/
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Extra resources for Practical Reporting with Ruby and Rails (Expert's Voice in Open Source)
Example text
Listing 3-5 shows the code to create a single chart summarizing all of the players. Listing 3-5.
25f' % call formats the value as a float # with two decimal points. The String's % operator works # similarly to the C sprintf function. rb. 00 Count 1 4 1 1 As you can see, it’s reasonably trivial to use the calculate function to do simple grouping and report the results. Dissecting the Code Most of Listing 2-2 is code to connect to the database and initialize the models, as you’ve seen in other examples. 2f' % salary}\t#{count} " end Essentially, this code groups by the salary field and counts the ids in each group.
Quantity} wins" end As you can see, it uses the aforementioned wins property of each Game object. The method returns an array of wins for the current game, so we loop through each and find the win with the highest quantity. At that point, the name of the game is printed out, as well as the name of the winning player and the quantity. nil? total_wins} wins" You loop through each player and use the total_wins method to sum the player’s quantity of wins. The player with the highest result from total_wins is selected, and that player’s name and total wins are printed out.
Practical Reporting with Ruby and Rails (Expert's Voice in Open Source) by David Berube
by David
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