ExtJs4-ModelFactory模型工厂
Ext.define("factory.ModelFactory",{ statics:{ //数据类模型的集合 models:new Ext.util.MixedCollection(), //字段集合 fields:new Ext.util.MixedCollection(), getModelByName:function(modelName,excludes){ //不需要的字段 var nofields = {}; if(excludes){ nofields = {"excludes":excludes}; } //1.声明类,返回类的ClassName if(!this.models.containsKey(modelName)){ //ajax拿到我们的字段集合 var fields = []; if(this.fields.containsKey(modelName)){ fields = this.fields.containsKey(modelName) }else{ Ext.Ajax.request({ url:'/pc/doAction!getModelFields.action?modelName='+modelName, method:'POST', params:nofields, timeout:4000, async:false,//跟关键 我不需要异步操作 success:function(response,opts){ fields = eval(response.responseText); } }); } this.fields.add(modelName,fields); var newModel = Ext.define(modelName,{ extend:'Ext.data.Model', fields:fields }); this.models.add(modelName,newModel); } return {modelName:modelName,model:this.models.get(modelName)}; } }});