Introduction about Yii2 by Peter Jack Kambey

1. Peter J. Kambey – Yii Enthusiasm
HIGH PERFORMANCE
&
BEST FEATURES YII-2

2. About Me
http://about.me/peterjkambey

3. What’s New Yii-2
⦿ Composer
⦿ PSR Compliance. Autoloading
⦿ PHP 5.4 or above
▪ Namespaces.
▪ Anonymous functions.
▪ Short array syntax.
▪ Short echo tags <?= are used in view files.
▪ SPL classes and interfaces.
▪ Late Static Bindings.
▪ Date and Time.
▪ Traits.
▪ intl.

4. A. Non Yii Users / New
Comers

5. http://www.yiiframework.com/doc-2.0/guide-index.html

6. What is Yii

7. What is Yii Best for?

8. Yii vs Other Frameworks?
• MVC (Model-View-Controller)
• Design pattern
• Full-stack framework with ready-to-use features:
query builders and ActiveRecord for both relational and NoSQL databases;
RESTful API development support;
multi-tier caching support;
and more.
• Extremely extensible.
• High performance is always a primary goal of Yii.
• Backed up by a strong core developer team, as well as a large community of
professionals constantly contributing to Yii's development.

9. Personal Opinion

10. B. Yii Users

11. Namespaces
⦿ Prefixes no longer used
⦿ Based on directory structure
e.g. yiiwebRequest

12. Events
⦿ onEvent method definition no longer
needed
⦿ $component->on($eventName,
$handler);

13. Path Alias
⦿ Must use @
⦿ @yii means Yii installation directory
⦿ Closely related to class namespaces

14. View Class
⦿ $this in a view no longer means controller or
widget object
⦿ Smarty and Twig support added
⦿ Prado support removed

15. Models
⦿ formName() returns the form name (previously
hardcoded)
⦿ Load() and loadMultiple() added to aid data
population
⦿ New method: scenarios() to define which fields
need to be validated
⦿ Safe validators discontinued, scenarios() define
which are safe

16. Controllers
⦿ Render() and renderPartial() return content
instead of sending it out
⦿ One must echo contents now

17. Widgets
⦿ Simplified process
⦿ Use begin(), end() and widget() instead of
passing strings through beginWidget() and
endWidget().

18. Themes
⦿ CThemeManager is gone
⦿ Path maps
⦿ ['/web/views' => '/web/themes/basic’]
⦿ /web/views/site/index.php will be
/web/themes/basic/site/index.php
⦿ Any view file can have a theme, even if
rendered outside of the context of a controller

19. Console applications
⦿ Controllers
⦿ Console and web controllers have same
base class
⦿ Console controller is similar to
CConsoleCommand

20. Internationalisation (i18n)
⦿ Date and number formatter are out
⦿ PECL intl php module is in
⦿ I18n application component

21. ActiveForm
⦿ Field: label, input, error message and
hint text

22. Query Builder
⦿ CDbCommand, CDbCriteria,
CDbCommandBuilder
⦿ yiidbQuery|Query = DB
⦿ yiidbQueryBuilder|QueryBuilder =
Query

23. Active Record
⦿ yiidbActiveRecord|ActiveRecord
⦿ Relational AR Query
⦿ 1.1 = relations()
⦿ 2.0 = getter methods

24. Active Record
⦿ No longer uses model(), but uses the
find method:

25. User and IdentityInterface
⦿ CWebuser is now yiiwebUser
⦿ CUserIdentity is no more
⦿ yiiwebIdentityInterface

26. URL Management
⦿ Optional parameters are now supported

27. ⦿ Installing Yii
⦿ Generating Code with Gii
⦿ Handling Errors
⦿ Logging
⦿ Query Builder
⦿ Active Record
⦿ Migrations
⦿ Sphinx
⦿ Redis
⦿ MongoDB
⦿ ElasticSearch
⦿ Security
⦿ Caching
⦿ RESTful Web Services
⦿ Development Tools
⦿ Testing
Yii 2.0 Keys Success
⦿ Advanced Application Template
⦿ Console Commands
⦿ Core Validators
⦿ Internationalization
⦿ Mailing
⦿ Template Engines
⦿ Working with Third-Party Code
⦿ GridView
⦿ ListView
⦿ DetailView
⦿ Pjax
⦿ Menu
⦿ LinkPager
⦿ LinkSorter
⦿ Bootstrap Widgets
⦿ Jquery UI Widgets