方法入口:
initOData: function(){
function mySuccessHandler(){
debugger;
}
function myErrorHandler(){
debugger;
}
var oModel = new ODataModel("http://localhost:8089/Northwind/Northwind.svc/");
var oMetadata = oModel.getServiceMetadata();
var result = oModel.getProperty("/Customer('ALFKI')/Address");
var oContext = oModel.createEntry("/Customers", {
properties : {Name : "Laptop X", Description:"New Laptop", Price:"1000", CurrencyCode : "USD"}
debugger;
第一个参数为 entitySet 名称,第二个参数为待创建的 entry payload:
需要在 metadata 加载完毕之后,才能调用 createEntry 方法。
修改之后的代码:
sap.ui.define([
"sap/ui/core/UIComponent",
"sap/ui/model/json/JSONModel",
"sap/ui/model/resource/ResourceModel",
"sap/ui/model/odata/v2/ODataModel"
], function (UIComponent, JSONModel, ResourceModel,ODataModel) {
"use strict";
return UIComponent.extend("sap.ui5.walkthrough.Component", {
metadata : {
"interfaces": ["sap.ui.core.IAsyncContentCreation"],
"rootView": {
"viewName": "sap.ui5.walkthrough.view.App",
"type": "XML",
"id": "app"
}
},
initOData: function(){
function mySuccessHandler(){
debugger;
}
function myErrorHandler(){
debugger;
}
function myLoaded(oEvent){
debugger;
var oContext = oModel.createEntry("/Customers", {
properties : {Name : "Laptop X", Description:"New Laptop", Price:"1000", CurrencyCode : "USD"}});
oModel.submitChanges({success: mySuccessHandler, error: myErrorHandler});
// handle successful creation or reset
oContext.created().then(
function () { /* successful creation */ },
function () { /* deletion of the created entity before it is persisted */ }
);
}
var oModel = new ODataModel("http://localhost:8089/Northwind/Northwind.svc/");
var oData = {
name:'Jerry'
};
oModel.attachMetadataLoaded(oData, myLoaded);
var oMetadata = oModel.getServiceMetadata();
var result = oModel.getProperty("/Customer('ALFKI')/Address");
debugger;
// bind a form against the transient context for the newly created entity
// oForm.setBindingContext(oContext);
// submit the changes: creates entity in the back end
},
init : function () {
UIComponent.prototype.init.apply(this, arguments);
this.initOData();
var oData = {
recipient : {
name : "SAP UI5 初学者教程之九 - 创建第一个 Component"
}
};
var oModel = new JSONModel(oData);
this.setModel(oModel);
var i18nModel = new ResourceModel({
bundleName: "sap.ui5.walkthrough.i18n.i18n"
});
this.setModel(i18nModel, "i18n");
}
});
});
现在 metadata 处于成功加载状态,执行 create 函数:
得到 entityType:
this.mChangeGroups 里有一个默认的 change group:
使用默认的 changes group:
生成一个 dummy 的 uid?
submit change:
执行异步队列:
这个 batch 请求什么时候生成的?
HTTP 202 状态码代表的意思是 请求已被接受,但尚未处理,即 HTTP 202 Accepted 响应状态。
这个状态码表明客户端发起的请求,可能会被服务器端处理,也可能会被拒绝,适用于异步操作场合
,允许服务器接受其他过程请求,而不用让客户端一直保持与服务器的连接直至批处理操作全部完成。
使用 Postman 给 Northwind 发送 HTTP post 请求创建 customers 的 script:
url:https://services.odata.org/V2/Northwind/Northwind.svc/$batch
content-type:multipart/mixed;boundary=batch_23c4-3627-5005
body:
--batch_23c4-3627-5005
Content-Type: multipart/mixed; boundary=changeset_6ddc-5df2-c1a1
--changeset_6ddc-5df2-c1a1
Content-Type: application/http
Content-Transfer-Encoding: binary
POST Customers HTTP/1.1
Content-Type: application/json
Content-ID: id-1664894186776-9
sap-contextid-accept: header
Accept: application/json
Accept-Language: en-US
DataServiceVersion: 2.0
MaxDataServiceVersion: 2.0
Content-Length: 130
{"Name":"Laptop X","Description":"New Laptop","Price":"1000","CurrencyCode":"USD","__metadata":{"type":"NorthwindModel.Customer"}}
--changeset_6ddc-5df2-c1a1--
--batch_23c4-3627-5005--
发送之后,收到 HTTP 202 Accepted 的响应:
标签:function,debugger,oModel,var,createEntry,UI5,单步,sap,Northwind From: https://blog.51cto.com/jerrywangsap/5733438