How to extend a JSONModel

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How to extend a JSONModel

How to extend a JSONModel

So here’s a very basic template for extending the JSONModel.

sap.ui.define([
	"sap/ui/model/json/JSONModel",
	"sap/base/Log"
], function (JSONModel, Log) {
	return JSONModel.extend("XXX.model.XXX", {

		/**
		 * @class XXX
		 * @summary XXX
		 * @extends sap.ui.model.json.JSONModel
		 * @param {Object} controller - this 
		 * @example
		 * this.setModel( new XXX(this), "XXX");
		 */

		constructor: function (controller) {
			JSONModel.prototype.constructor.call(this, []);
			this._oParentController = controller || void 0;
			this._oServiceModel = this._oParentController.getModel();
			Log.info("XXX.js initialized");
		},
		/**
		 * @memberOf XXX
		 * @description XXX
		 * @example
		 * this.getModel("XXX").getXXX();
		 */
		getXXX: function () {

		}

	});
});

I always pass the “this” context in the constructor to get access to the servicemodels and other stuff.

this._oParentController = controller || void 0;

Aswell most of the times I only use one servicemodel so I also declare it in the constructor.

this._oServiceModel = this._oParentController.getModel();

That’s it. If you are interested in more examples:

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