Drupal & Dungeons & Dragons
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This session was an exploration of complex real-world data management issues, and ways to solve them, using D&D as a point of reference for discussion. The presentation was given by Tobby Hagler, Senior Developer at Phase2 Technology at DrupalCamp Atlanta.
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Drupal & Dungeons & Dragons
- 1. Solving Real-World Data Management Problems
- 3. What does Dungeons & Dragons have to do with Drupal?
- 13. Multiple Values
- 20. Field Widgets Armor widget is both horizontal and vertical
- 21. Field Formatters
- 24. PC Record Sheets Storing data is one thing Printable character record sheets is key
- 28. Node Data In PDF
- 29. Drupal as a Campaign Manager
- 34. Questions?
Notas del editor
- Good afternoon, and welcome to Drupal & Dungeons & Dragons I’ll be your dungeon master…
- So why are we going to be talking about Dungeons & Dragons at a Drupal Camp? Write this down for your bosses: “This session was an exploration of complex real-world data management issues, and ways to solve them, using D&D as a point of reference for discussion.”
- What do they have in common? Where do they intersect? Playing and managing a D&D game, like many other real-world business needs, can be a complex and time-consuming experience. Whether it’s PC sheets, or contract records, or product or sales information…All of these things have unique challenges to managing workflows and how their data is stored.
- Managing lots of PCs with paper can get daunting. A character sheet is complex and takes a long time to fill out by hand Each piece of data (like a weapon or a spell) has complex sub-units of data – compound data Finally, there wasn’t anything on drupal.org for D7 to manage D&D Characters… So I scratched my own itch
- When I first created the D&D Character module, Drupal 7 had just been released (January 5). I had been using the Features module on new projects already I *REALLY* wanted to know how the Fields API worked
- When learning a new language, a few typical milestones… Hello World Start messing with user submitted data (CLI, use STDIN; for PHP, mess with the $_GET superglobal variable) Connect to a database, run queries, etc Eventually comes to creating a D&D character generator
- …and so the D&D Character module was born. A suite that includes: D&D Character D&D Fields D&D Character Sheet
- So let’s talk about data management in D&D…
- So let’s look at the problem we need to solve.
- The node is the go-to data bundle* in Drupal. But does it do enough of what we need for PCs? What can we do with standard fields? Race changes certain attributes. Can be multi-class Attributes – do you manage those as individual fields or a single field with 6 multiple values? Weapons alone have many characteristics to field
- We can accept multiple values for a single fields, which is useful. This is one-dimensional
- Does everyone know what I mean by vertical vs horizontal data depth? Longsword, short sword, gauntlet, mace Longsword +1, short sword +2 vs goblins, regular gauntlet with no powers, MACE OF TERROR! Mace of Terror == Cone of Fear for 60 feet
- Remember when I was talking about learning a new language or API with D&D as a common reference point? Learned Fields API to build a series of compound fields in a single night
- To store complex, horizontal data, you need compound fields. Sure, the modifier can be derived – ability score divided by 2 (rounded down) minus 5 is the modifier Modifier is an input value and not a derived value in case you want to play Heroic campaign rules.
- Fields API has field info, schemas, widgets, and formatters Widgets are the form input – HTML fields Formatters are the output – the templated output of the data
- 3 steps: Define your Info, Widget, and Formatter This LOOKS like a lot of hooks to learn, but most of them are actually really simple to use.
- Hook_field_info tells Drupal about the field. It’s nothing more than a simple array with some meta data. Real simple.
- What am I talking about when I say “Field Widget” This is simply a standard Forms API definition of a form to capture data for your user’s data Arrow-Up 4 times to go back to the Ability page
- What am I talking about when I say “Field Formatter” This is a rendered form of the field data In this case, theme_table is what we use to display the data. Every field is a new table row.
- Even then, field formatters might not be enough. What if you need to generate printer-friendly output?
- Output of your complex data is key to good data management In the case of D&D, table-top role-playing uses pencil and paper record keeping There are good iPad apps for characters, but nothing beats paper. NOTHING. 3 rd module in the D&D Character module suite.
- It’s one thing (and an important thing) to capture PC data in a filedable way It’s just as important to be able to print a PC record in a way that makes sense on paper
- In Drupal, there’s really not much that will generate character sheets Print module and maybe some others will produce PDFs, but these don’t print to exact data record specifications Whether it’s a PC sheet, a product spec sheet, or a tax record, we need something very specific.
- In this code sample, we set up page information: The paper size and dimensions Which page in the PDF this is Accepts the node object as an argument
- PDF programming for a specific sheet can get complicated as a theme Printing the node data is pretty easy though This code prints the boxes that displays the PC wealth boxes
- Node data in a PDF – what does that look like? Each box in the sheet comes from fields in the node
- One last thing Drupal is great for D&D… Manage your campaign in Drupal Campaign history, pantheon of gods, Pages for NPCs the players have met, Blog posts of past runs for recapping the story thus far…
- Drupal is a CMS. A Campaign Management System.
- With the D&D Character module, and blog posts of previous runs, players can update their data, see what they’ve done, even look for clues.
- Visit the Agile Approach blog for a good intro to building custom fields using Field API D&D Character module with these submodules API.drupal.org has helpful information – search for field_example module hooks