cakefest 2011 pecha kucha talk on abstraction

1. dogmatic69
http://dogmatic69.com
http://github.com/dogmatic69
https://github.com/infinitas/infinitas/tree/beta/core/charts

2. Code patterns
good and bad patterns
moderation = good

3. Engines
awesome adapter abstraction

4. Examples
Js Engine
Cake DBO
Authentication (2.0)

5. Abstraction limits functionality

7. V3.x
V1: started with simple chart api for google
v2: almost complete google api for charts
V3: chart engine with GoogleChartEngineHelper + others

8. Google charts

9. Chart Engine
Any chart lib
Same code for all
Switch engines on the fly
Simple API

10. How

11. Example 1

12. Reasons
not all chart libs are created equal
charts in view (js)
charts in pdf (google static charts / html)
charts in terminal

13. Switching Engines

14. Classes
DataManipulation LIb (format data for charting)
BaseChartEngineHelper (abstract)
ChartsHelper (does the heavy lifting)
YourCustomChartEngineHelper (what ever you like)

15. BaseChartEngine - extend this class

16. char data manipulation

17. API sample

18. Cache
done in the ChartsHelper
hash params
check for a match
return | process data
write cache

20. Infinitas needs a new designer