SAPUI5从本地存储向JSON模型添加数据

Question

I need to add something from my local Storage to my JSONModel that I can use it in a view.xml.

In my function where I build up the JSON Model I read the data I need from the local storage.

de.fum.nmp.util.Storage.getItem("amountSync").done(function(amountSync) {
    amountSync = JSON.stringify(amountSync);
}).fail(function() { 
    var i = 0;
});

de.fum.nmp.util.Storage.getItem("newSyncTime").done(function(sSyncime) {
    aSyncTimes = JSON.stringify(sSyncime);
}).fail(function(sError) { 
    var i = 0;
});

These two deliver the two data fields I need. After that the JSON Model is build, but that already happened before I implemented the reading from the storage.

var oModel = new sap.ui.model.json.JSONModel(oData);
this.getView().setModel(oModel);

How can I make sure that I add those data to the JSON Model, too?

Answer 1

You can do this by setting the property value of the model with the data extracted from localStorage.

Ex: this.getView().getModel().setProperty("/amountSync", amountSync );

Bind the amountSync model property to the control.

   var view = this;
   de.fum.nmp.util.Storage.getItem("amountSync").done(function(amountSync) {
     amountSync = JSON.stringify(amountSync);
     view.getView().getModel().setProperty("/amountSync", amountSync );
       }).fail(function() { 
        var i = 0;
     });

    de.fum.nmp.util.Storage.getItem("newSyncTime").done(function(sSyncime) {
        aSyncTimes = JSON.stringify(sSyncime);
        view.getView().getModel().setProperty("/aSyncTimes ", aSyncTimes );
      }).fail(function(sError) { 
        var i = 0;
     });