使用MobileFirst Platform 7.1在JSONStore中进行CRUD操作 [英] CRUD Operation in JSONStore using MobileFirst Platform 7.1

问题描述

我是MFP的新手，我正在尝试执行基本的CRUD操作。执行以下代码后，没有任何事情发生。如果我能得到一些帮助，我将非常感激。谢谢。

I'm new to MFP and I'm trying to perform a basic CRUD operation. Nothing is happening after the following code is executed. I will highly appreciate if i can get some help. Thank you.

main.js

function wlCommonInit () {

var collections = {
          people : {
            searchFields: {name: 'string', age: 'integer'}
          }
        };

        WL.JSONStore.init(collections).then(function (collections) {
          // handle success - collection.people (people's collection)
        }).fail(function (error) {
            alert("alert" + error);
          // handle failure
        });


        var collectionName = 'people';
        var options = {};

        var data = {name: 'yoel', age: 23};

        WL.JSONStore.get(collectionName).add(data, options).then(function () {
         // handle success
        }).fail(function (error) {
         // handle failure
        });




        // to display results using query yoel
        var query = {name: 'yoel'};

        var collectionName = 'people';

        var options = {
          exact: false, //default
          limit: 10 // returns a maximum of 10 documents, default: return every document

        };

        WL.JSONStore.get(collectionName).find(query, options).then(function (results) {
          // handle success - results (array of documents found)
        }).fail(function (error) {
          // handle failure
        });         
}//end wlCommonInit

推荐答案

JSONStore是异步。使用您编写的代码，您无法确定它的运行顺序。

JSONStore is asynchronous. With the code you wrote you cannot be sure of the order it is run.

JavaScript代码很可能会调用你的 add（）或 find（ ）在你的 init（）发生之前。

The JavaScript code is most likely calling one of your add() or find() before your init() happens.

这篇关于使用MobileFirst Platform 7.1在JSONStore中进行CRUD操作的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！