According to my understanding, module and controller is different.
1. Controller
Controller is used in view, handling the event triggered in view. The most explicate feature is to extend "sap/ui/core/mvc/Controller".
Like this:
sap.ui.define([
"sap/ui/core/mvc/Controller"
], function (Controller) {
"use strict";
return Controller.extend("sap.ui.demo.walkthrough.controller.App", {
onShowHello : function () {
// show a native JavaScript alert
alert("Hello World");
}
});
});
Step 5: Controllers - Documentation - Demo Kit - SAPUI5 SDK (ondemand.com)
2. Module
Firstly, module is a normal principle for javascript. You can see this toturial:
https://sapui5.hana.ondemand.com/#/topic/50579ddf2c934ce789e056cfffe9efa9
2.1 Usage
- Clean your code by module.
- Use module in your fragment. For fragment, you can assign a controller to the fragment when it's loaded. Or you can use import module in fragment and use it like the below code:
<core:FragmentDefinition
xmlns="sap.m"
xmlns:core="sap.ui.core">
<Dialog core:require="{ handler: 'sap/ui/demo/walkthrough/module/HelloDialog'}"
id="helloDialog"
title="Hello {/recipient/name}">
<Button text="Button in Dialog"
press="handler.onRaiseMessage"></Button>
</Dialog>
</core:FragmentDefinition>
In some application generated by Fiori Element, it will be convenient to use the module in fragment. Since the controller and view are invisible.
2.2 Example
- Use sap.ui.define to define module.
- Import library.
- Define private method.
- Define public method(In the return statement).
sap.ui.define([
"sap/m/MessageToast"
], function (MessageToast) {
'use strict';
var privateMethod_1 = function () {
MessageToast.show("Active private method");
};
return {
onRaiseMessage: function (oEvent) {
privateMethod_1();
}
}
});
There are some points needs your attention:
- The public method cannot call another public method, it only can call private method. I am not clear the reason, if you know that, feel free to add comment.
- If you debug the statement "MessageToast.show(...)", you will find that this refers to the view controller not the module. You can use it to operate model or do other things.
