[英]SAPUI5: Combining OData with other Webservice in the same table
这个问题是关于使用SAP Web IDE开发SAPUI5。 我想将OData-Service与仅通过POST方法调用的Web服务结合在一起。 所以基本上就是这样:我从OData服务(从后端SAP系统中)检索一个列表,并将其显示在table元素中。 到现在为止还挺好。 有用。
现在,对于表中的每一行,我想使用POST方法调用Web服务来检索我也想在该行中显示的值。 喜欢:
第1列的行值为A,第2列的行值为B,我将其传递给Web服务,该服务告诉我“对于A和B,结果为X”。 所以我想在同一行的另一列中显示X。
如何做到这一点? 您知道任何例子吗?
使用AJAX POST响应中的数据创建一个JSON模型。 将表中所需的单元格绑定到此新的JSON模型。 然后,如果要根据从OData接收的每个特定行的值在JSON模型中进行选择数据,请使用包含部分的格式化程序功能。
这是一个从罗斯文(Northwind)获取数据和带有伪数据的JSON模型的示例: https : //jsbin.com/racenaqoki/edit?html,output
使用真正的AJAX调用: https : //jsbin.com/jivomamuvi/edit?html,输出
<html>
<head>
<meta http-equiv='X-UA-Compatible' content='IE=edge'>
<meta charset="utf-8">
<title>MVC with XmlView</title>
<!-- Load UI5, select "blue crystal" theme and the "sap.m" control library -->
<script id='sap-ui-bootstrap'
src='https://sapui5.hana.ondemand.com/resources/sap-ui-core.js'
data-sap-ui-theme='sap_bluecrystal'
data-sap-ui-libs='sap.m'
data-sap-ui-xx-bindingSyntax='complex'></script>
<!-- DEFINE RE-USE COMPONENTS - NORMALLY DONE IN SEPARATE FILES -->
<!-- define a new (simple) View type as an XmlView
- using data binding for the Button text
- binding a controller method to the Button's "press" event
- also mixing in some plain HTML
note: typically this would be a standalone file -->
<script id="view1" type="sapui5/xmlview">
<mvc:View xmlns="sap.m" xmlns:mvc="sap.ui.core.mvc" controllerName="my.own.controller">
<Page>
<Table items="{/Orders}" updateFinished="onTableUpdateFinished">
<columns>
<Column >
<Text text="My Value From OData"/>
</Column>
<Column>
<Text text="My Value From AJAX"/>
</Column>
</columns>
<items>
<ColumnListItem>
<cells>
<ObjectIdentifier title="{CustomerID}"/>
<ObjectIdentifier text="{parts:[{path:'CustomerID'}, {path:'myOtherModel>/'}], formatter: '.myFormatter'}"/>
</cells>
</ColumnListItem>
</items>
</Table>
</Page>
</mvc:View>
</script>
<script>
// define a new (simple) Controller type
sap.ui.controller("my.own.controller", {
onInit: function(){
var myOtherModel = new sap.ui.model.json.JSONModel();
this.getView().setModel(myOtherModel, "myOtherModel");
//Here your AJAX call to get the data from a POST request
/*
$.ajax({
type: "POST",
url: url,
data: data,
success: this.ajaxSuccess,
dataType: dataType
});
*/
//Let's simulate that there was a success receiving the following data
var data = {
VINET: {
message: "VINET Rocks!!"
},
WARTH: {
message: "WARTH is good company!!"
},
RICSU: {
message: "RICSU I don't like"
},
HANAR: {
message: "HANAR was my first customer"
}
}
this.ajaxSuccess(data);
},
ajaxSuccess: function(data){
this.getView().getModel("myOtherModel").setData(data)
},
myFormatter: function(sCustomerID, otherModelData){
// This formatter will be executed for each table row.
// In the first parameter, the value binded in the first column
// In the second parameter, the node you want of your second model (in this case the root node)
//do whatever you want here and return a string for the 'text' property in this case
if(otherModelData[sCustomerID]){
// If there is a node in your second model with a node for the given Customer ID, then return the message into it
return otherModelData[sCustomerID].message;
}
//Otherwise return empty string
return "";
}
});
/*** THIS IS THE "APPLICATION" CODE ***/
// create a Model and assign it to the View
// Using here the HEROKU Proxy to avoid a CORS issue
var uri = "https://cors-anywhere.herokuapp.com/services.odata.org/Northwind/Northwind.svc"; // local proxy for cross-domain access
var oNorthwindModel = new sap.ui.model.odata.ODataModel(uri, {
maxDataServiceVersion: "2.0"
});
// instantiate the View
var myView = sap.ui.xmlview({viewContent:jQuery('#view1').html()}); // accessing the HTML inside the script tag above
// Set the OData Model
myView.setModel(oNorthwindModel);
myView.placeAt('content');
</script>
</head>
<body id='content' class='sapUiBody'>
</body>
您可以扩展oData服务,以便实体包含“ webservice_result”属性。 在数据提供程序类中,您将将该属性留空,而仅返回“ A”和“ B”值。
调用oData服务并获取结果后,您只需使用带有值A,B的ajax调用其他Web服务,当您获得结果时,只需将给定行(实体)的“ webservice_result”属性设置为使用oDataModel.setProperty("row_x/webservice_result", value)
返回的值oDataModel.setProperty("row_x/webservice_result", value)
看到:
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