Used in study meeting in YNS Philippines Inc on June 8, 2016.

1. LEARNING CAKEPHP FROM
SOURCE CODE VOL.2
HIDESHI OGOSHI
YNS PHILIPPINES INC.
JUNE-8-2016

2. QUESTION
Why do you use web framework instead of plain PHP?
Separation of cross-cutting concern

3. SEPARATION OF CROSS-CUTTING CONCERN
▸ Cross-cutting concerns are aspects of a program that affect
other concerns. These concerns often cannot be cleanly
decomposed from the rest of the system in both the
design and implementation, and can result in either
scattering (code duplication), tangling (significant
dependencies between systems), or both.
▸ Examples: authentication, authorization, caching,
communication, configuration, exception management,
logging, routing, and validation

4. CORE CONCERN AND CROSS-CUTTING CONCERN

5. ▸ Auditing
▸ There is an enterprise system which requires to record all
the operations by the users for security.
EXAMPLE OF CROSS-CUTTING CONCERN 1

6. ▸ Performance logging
▸ There is a system which requires the high performance in
order to provide higher user experience to the users.
EXAMPLE OF CROSS-CUTTING CONCERN 2

7. ▸ Exception handling
▸ There is a system which requires to handle the exceptions
and write errors in a log file so that the system will be able
to notify system administrators in real time through e-mail.
EXAMPLE OF CROSS-CUTTING CONCERN 3

8. HOW TO USE EVENT SYSTEM IN CAKEPHP
▸ One of the way to separate cross-cutting concerns in
CakePHP is event system.
▸ The way to handle events is just attach listeners and
dispatch events.
▸ Example: http://martinbean.co.uk/blog/2013/11/22/
getting-to-grips-with-cakephps-events-system/

9. EVENT SYSTEM USED IN CAKEPHP FRAMEWORK
▸ Controller, Components and Model use the event system.

10. CLASS DIAGRAM OF CAKEPHP

11. SEQUENCE DIAGRAM OF CAKEPHP