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Aprimorando
            sua Aplicação
             com Ext JS 4

Loiane Groner
http://loiane.com
http://loianegroner.com     BrazilJS
me@loiane.com
Loiane...

palestrante = {
  nome: ‘Loiane Groner’,
  trabalha: ‘Senior Software Engineer’,
  onde: ‘@Citibank - São Paulo’,
  usaExtDesde: 2009,
  twitter: ‘@loiane’
}
Mãos ao alto!

   Conhece JQuery?

   Conhece Ext JS?

Já trabalhou com Ext JS?
http://sencha.com
Ext JS
   é
líndio!
1milhão de desenvolvedores

RIA JS Framework

Melhores componentes UI do
mercado
Puro HTML/Javascript   Com Ext JS




                                    HOT!
XML
  ou
JSON
Tem
 para
todos
Cross Browser
         Funciona até
          no IEca 6!




         Não precisa
              ficar
         esquentando
           a cabeça!
Ext 3
 ->
Ext 4
Framework
 rewritten
Performance++
Faster++
Stable++
E outros....
Plus:
*New Class System
*New Data Package
*New Charts
*New Theming: CSS3
*New Architecture:
 MVC
The New Class
   System
Class Definition

// Ext 3:
Ext.ns('MyApp'); // required in Ext 3
MyApp.CustomerPanel = Ext.extend
(Ext.Panel, {
    // etc.
});

// Ext 4
Ext.define('MyApp.CustomerPanel', {
    extend: 'Ext.panel.Panel',
    // etc.
});
Mixins


Ext.define('Sample.Musician', {
	 extend: 'Sample.Person',

	 mixins: {
	 	 guitar: 'Sample.ability.CanPlayGuitar',
	 	 compose: 'Sample.ability.CanComposeSongs',
	 	 sing: 'Sample.ability.CanSing'
	 }
});
Mixin Definition


 
Ext.define
('Sample.ability.CanPlayGuitar',
{
    playGuitar: function() {
        //code to play
    }
});
 
Dynamic Loading


Ext.require('Ext.Window', function() {
    new Ext.Window({
        title : 'Loaded Dynamically!',
        width : 200,
        height: 100
    }).show();
});
Dynamic Loading Hierarchy

Ext.define('Ext.Window', {
     extend: 'Ext.Panel',
     requires:
" " " " " ['Ext.util.MixedCollection'],
     mixins: {
           draggable: 'Ext.util.Draggable'
     }
});
The New Data
  Package
Model Declaration


Ext.regModel('User', {
    fields: [
        {name: 'id', type: 'int'},
        {name: 'name', type: 'string'}
    ]
});
New Store Declaration

new Ext.data.Store({
    model: 'User',
    proxy: {
        type: 'ajax',
        url : 'users.json',
        reader: 'json'
    },
    autoLoad: true
});
Store Features
new Ext.data.Store({
    model: 'User',
 
    sorters: ['name', 'id'],
    filters: {
        property: 'name',
        value   : 'Loiane'
    },
    groupers: {
        property : 'age',
        direction: 'ASC'
    }
});
 
Ext.regModel('User', {
    fields: ['id', 'name'],
 

});
    hasMany: 'Posts'         Associations
 
Ext.regModel('Post', {
    fields: ['id', 'user_id', 'title', 'body'],
 
    belongsTo: 'User',
    hasMany: 'Comments'
});
 
Ext.regModel('Comment', {
    fields: ['id', 'post_id', 'name', 'message'],
 
    belongsTo: 'Post'
});
Loading Nested Data
//loads User with ID 123 using User's Proxy
User.load(123, {
    success: function(user) {
        console.log("User: " + user.get('name'));
 
        user.posts().each(function(post) {
            console.log("Comments for post: " +
post.get('title'));
 
            post.comments().each(function(comment) {
                 console.log(comment.get('message'));
            });
        });
    }
});
{              Nested Data: JSON
    id: 1
    name: 'Loiane',
    posts: [
        {
             id    : 12,
             title: 'New features in Ext JS 4',
             body : 'Ext JS 4 is the most...',
             comments: [
                 {
                      id: 123,
                      name: 'Someone',
                      message: 'Great Post!'
                 }
             ]
        }
    ]
}
Model Validation

Ext.regModel('User', {
    fields: ['id', 'name', 'email', 'height'],
 
    validations: [
        {type: 'presence', field: 'id'},
        {type: 'length', field: 'name', min: 2},
        {type: 'format', field: 'email', matcher: /[a-
z]@[a-z].com/}
    ]
});
Charts
MVC
Architecture
Hands On!!!
Código para
       Download:

 https://github.com/
loiane/ext4-crud-mvc
Book:
Ext JS 4: First Look!!!

    Coming: 2011
contato = {
  email: ‘me@loiane.com’,
  blogPtBr: ‘loiane.com’,
  blogIngles: ‘loianegroner.com’,
  twitter: ‘@loiane’,
  github: ‘loiane’,
  slideshare: ‘loianeg’
}

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