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| /**
| @name Edo.data.Connection
| @private
| @class
| @typeName Connection
| @description 数据连接器(用于服务端数据交互)
| @extend Edo.core.Component
| @example
| */
| Edo.data.Connection = function(data){
| Edo.data.Connection.superclass.constructor.call(this);
|
| }
| Edo.data.Connection.extend(Edo.core.Component, {
|
| loadUrl: '',
| saveUrl: '',
| method: 'post',
| sync: true,
|
| load: function(url, params, callback){
| if(url !== null) this.loadUrl = url;
| this.loadCallback = callback;
|
| if(this.loadAjax) {
| this.loadAjax.abort();
| }
|
| this.fireEvent('beforeload', {
| type: 'beforeload',
| source: this
| });
| if(params) this.loadParams = params;
| this.loadAjax = this.doConnection(this.loadUrl, this.loadParams, this.onLoadSuccess.bind(this), this.onLoadFail.bind(this));
| },
| save: function(url, params, callback){
| if(url !== null) this.saveUrl = url;
| this.saveCallback = callback;
|
| if(this.saveAjax) {
| this.saveAjax.abort();
| }
|
| this.fireEvent('beforesave', {
| type: 'beforesave',
| source: this
| });
| if(params) this.saveParams = params;
| this.saveAjax = this.doConnection(this.saveUrl, this.saveParams, this.onSaveSuccess.bind(this), this.onSaveFail.bind(this));
| },
| doConnection: function(url, params, success, fail){
| var ajax = Edo.util.Ajax.request({
| url: url,
| type: this.method,
| sync: this.sync,
| params: params,
| onSuccess: success,
| onFail: fail
| });
| return ajax;
| },
| onLoadSuccess: function(text){
| this.loadAjax = null;
| this.fireEvent('load', {
| type: 'load',
| source: this,
| data: text
| });
| if(this.loadCallback) this.loadCallback(text);
|
| //this.loadParams = null;
| },
| onLoadFail: function(code){
| this.loadAjax = null;
| this.fireEvent('loaderror',{
| type: 'loaderror',
| source: this,
| code: code
| });
| },
| onSaveSuccess: function(text){
| this.saveAjax = null;
| this.fireEvent('save', {
| type: 'save',
| source: this,
| data: text
| });
| if(this.saveCallback) this.saveCallback(text);
|
| //this.saveParams = null;
| },
| onSaveFail: function(code){
| this.saveAjax = null;
| this.fireEvent('saveerror',{
| type: 'saveerror',
| source: this,
| code: code
| });
| //this.saveParams = null;
| }
| });
|
| Edo.data.Connection.regType('connection', 'conn');
|
|
