ExtJS使用model来表示现实世界中的模型 有点类似于数据库的table Java的class

Ext.define("User", {extend : "Ext.data.Model",fields : [{name : "name", type : "string"},{name : "age", type : "int", convert: null}],    changeName : function() {var oldName = this.get("name");newName = oldName + "ch";this.set("name", newName);    }});

ExtJS有三种方法创建model

var arn = Ext.create("User",{name : "sads",age : 26    });var arn = Ext.ModelManager.create({name : "sads",age : 26 },"User");var arn = new User({name : "sads",age : 26   });

model里有validations属性来验证数据

Ext.define("User", {extend : "Ext.data.Model",fields : [{name : "name", type : "string"},{name : "age", type : "int", convert: null}],    validations : [{type: "length", field: "name", min: 2, max: 6 }],changeName : function() {var oldName = this.get("name");newName = oldName + "ch";this.set("name", newName);   }});var arn = Ext.create("User",{name : "sadssads",age : 26    });var errors = arn.validate();errors.each(function(v){console.log(v);});

我们可以扩展Ext.data.validations增加验证方法

Ext.apply(Ext.data.validations,{age:function(config, value) {var min = config.min;var max = config.max;if(min <= value && value <= max) {return true;  }else{return false; }},ageMessage: "age不正确"});

使用proxy代理获值

Ext.define("User", {extend : "Ext.data.Model",fields : [{name : "name", type : "string"},{name : "age", type : "int", convert: null}],  proxy : {type:"ajax",url:"user.php"},validations : [{type: "length", field: "name", min: 2, max: 6 },{type: "age", field : "age", min:10, max:60}],changeName : function() {var oldName = this.get("name");newName = oldName + "ch";this.set("name", newName); }});var u = Ext.ModelManager.getModel("User");u.load(10, {scope: this,failure: function(record, operation) {//do something if the load failed//record is null},success: function(record, operation) {console.log(record);},callback: function(record, operation, success) {}});

php

     $arr = array("name" => "sads","age" => 12);$data = json_encode($arr);echo $data;