ExtJS 6 -- get store inside viewmodel - extjs

Question

I have an ExtJS 6.5.1 app and I am just now starting to migrate our app from MVC to MVVM, so I am pretty clueless about VM and VC.
I have a viewModel with an inline store like so:
Ext.define("MYAPP.view.ViewportViewModel",{
extend:"Ext.app.ViewModel",
alias: 'viewmodel.viewport',
constructor: function(config) {
var me = this;
this.callParent(arguments);
me.setStores({
info: {
autoLoad:true,
fields:["TEST"],
proxy:{
type:"ajax",
url:"blah.html",
reader:{
type:"json"
}
}
}
});
}
});
From inside my controller, how can I "get" the store so I can change the URL, reload, pass extraParams etc?
Thanks

Answer 1

You can get your store using this.getViewModel().getStore('info') inside of ViewController.
After getting store you can set another url using store.getProxy().setUrl(), load using store.load() and for sending extra params store.getProxy().extraParams.
Here is example
//this one way
store.load({
url: '{your url here}',
params: {
userid: 22216
}
});
//this another way
store.getProxy().setUrl('{your url here}');
store.getProxy().extraParams = {
userid: 22216
};
store.load();
In this FIDDLE, I have created a demo using view model and view controller. I hope this will help/guide you to achieve your requirement.
CODE SNIPPET
Ext.application({
name: 'Fiddle',
launch: function () {
Ext.define('MyViewController', {
extend: 'Ext.app.ViewController',
alias: 'controller.myview',
onRefreshButtonTap: function () {
var info = this.getViewModel().getStore('info');
info.getProxy().setUrl('data2.json');
info.load();
}
});
Ext.define("ViewportViewModel", {
extend: "Ext.app.ViewModel",
alias: 'viewmodel.myvm',
constructor: function (config) {
var me = this;
this.callParent(arguments);
me.setStores({
info: {
autoLoad: true,
fields: ['name', 'email', 'phone'],
proxy: {
type: 'ajax',
url: 'data1.json',
reader: {
type: 'json',
rootProperty: ''
}
}
}
});
}
});
//creating panel with GRID and FORM
Ext.create({
xtype: 'panel',
controller: 'myview',
title: 'Binding Example',
renderTo: Ext.getBody(),
viewModel: {
type: 'myvm'
},
layout: 'vbox',
items: [{
xtype: 'grid',
flex: 1,
width: '100%',
bind: '{info}',
columns: [{
text: 'Name',
dataIndex: 'name'
}, {
text: 'Email',
dataIndex: 'email',
flex: 1
}, {
text: 'Phone',
dataIndex: 'phone'
}],
listeners: {
itemclick: 'onGridItemClick'
}
}],
tbar:[{
text:'Refresh',
handler:'onRefreshButtonTap'
}]
});
}
});