This is my first time using a javascript framework, I would like to implement MVVM in my EXT JS application and the data is coming from my WEB API (ASP.NET FRAMEWORK).
My problem is that, I don't seem to understand how to fully use viewModel which looks up to my store. I successfully bound my ViewModel in my grid but now I don't know how to update the selected record using a form (modal) and sync my store (send update request through API)
I have a feeling that I'm doing it the wrong way. I don't know how to do this in fiddle so I'll just paste my code here.
Ext.define('VAM2.model.Genre', {
extend: 'VAM2.model.Base',
alias: 'model.genre',
fields: [
{name: 'GenreId', type: 'int'},
{name: 'Code', type: 'string'},
{name: 'CreatedBy', type: 'string'},
]
});Ext.define('VAM2.store.Genre', {
extend: 'Ext.data.Store',
alias: 'store.genre',
model: 'VAM2.model.Genre',
autoLoad: false,
pageSize: 10,
storeId: 'GenreId',
proxy : {
type : 'rest',
actionMethods : {
read : 'GET'
},
cors:true,
url: 'https://localhost:44332/api/Genre/GetGenresExtJs',
api:{
create: 'https://localhost:44332/api/Genre/CreateGenreExtJS',
read: 'https://localhost:44332/api/Genre/GetGenresExtJs',
update: 'https://localhost:44332/api/Genre/EditGenreExtJS',
destroy: 'https://localhost:44332/api/Genre/CreateGenreExtJS'
},
useDefaultXhrHeader: false,
reader: {
type : 'json',
headers: { 'Accept': 'application/json' },
allDataOptions: {
associated: true,
persist: true
},
rootProperty : 'data',
totalProperty: 'total'
},
}
});Ext.define('VAM2.view.genre.GenreViewModel', {
extend: 'Ext.app.ViewModel',
alias: 'viewmodel.genre',
requires:[
'VAM2.model.Genre'
],
stores: {
myGenres : {
model: 'VAM2.model.Genre',
autoLoad: true,
proxy : {
type : 'rest',
actionMethods : {
read : 'GET'
},
cors:true,
url: 'https://localhost:44332/api/Genre/GetGenresExtJs',
api:{
create: 'https://localhost:44332/api/Genre/CreateGenreExtJS',
read: 'https://localhost:44332/api/Genre/GetGenresExtJs',
update: 'https://localhost:44332/api/Genre/EditGenreExtJS',
destroy: 'https://localhost:44332/api/Genre/CreateGenreExtJS'
},
useDefaultXhrHeader: false,
reader: {
type : 'json',
headers: { 'Accept': 'application/json' },
allDataOptions: {
associated: true,
persist: true
},
rootProperty : 'data',
totalProperty: 'total'
},
}
}
},
data:{
title:'Sample Binding'
},
formulas: {
currentRecord: {
bind: {
bindTo: '{groupGrid.selection}', //--> reference configurated
//--> on the grid view (reference: groupGrid)
deep: true
},
get: function(record) {
return record;
},
set: function(record) {
if (!record.isModel) {
record = this.get('records').getById(record);
}
this.set('currentRecord', record);
}
}
}
});Ext.define('VAM2.view.genre.GenreList', {
extend: 'Ext.container.Container',
xtype: 'myGenreList',
requires: [
'VAM2.view.genre.GenreController',
'VAM2.view.genre.GenreViewModel',
'Ext.grid.column.Boolean',
'Ext.form.field.Checkbox',
'Ext.form.field.TextArea',
'Ext.form.field.Text'
],
controller: "genre",
viewModel: {
type: "genre"
},
width:'100%',
layout: {
type: 'vbox',
pack: 'start',
align: 'stretch'
},
style: {
backgroundColor: '#f5f5f5'
},
items: [{
xtype: 'grid',
reference: 'groupGrid', //--> used in the viewmodel,
bind: {
title: '{title}',
store: '{myGenres}'
},
columns: [{
text:'GenreIdField',
id:'GenreIdField',
dataIndex:'GenreId',
hidden:true
},{
text: 'Code',
dataIndex: 'Code',
flex:1
}, {
text: 'Created By',
dataIndex: 'CreatedBy',
flex: 1
}],
listeners:{
select:'onGenreSelected_FORMA' //--> I'm thinking this will trigger
//-> a form (modal) containing the data to update
}
}]
});A fiddle example would be great! Thank you!
Screenshot:
To do store.sync() you need to set values on the record first.
Example is without ViewModel: https://fiddle.sencha.com/#fiddle/3isg&view/editor
select: function (grid, record) {
console.log(record);
let win = Ext.create("Ext.window.Window", {
title: 'Edit',
modal: true,
autoShow: true,
width: 400,
height: 500,
controller: {},
items: [{
xtype: 'form',
reference: 'form',
fieldLabel: 'name',
items: [{
xtype: 'textfield',
name: 'name'
}]
}],
buttons: [{
text: 'cancel',
handler: function () {
win.close();
}
}, {
text: 'save',
handler: function () {
var values = this.lookupController().lookup('form').getValues();
record.set(values);
grid.getStore().sync({
scope: this,
success: function () {
win.close();
Ext.toast({
html: 'Well done',
align: 't'
});
},
failure: function () {
Ext.toast({
html: 'Problem occurred',
align: 't'
});
}
});
}
}],
listeners: {
afterrender: function () {
this.lookupController().lookup('form').loadRecord(record);
}
}
})
}