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extjs combo box getCount() on store returns 0

I am trying to get the number of items in the combo box so that I can make the first value by default visible in the combo box using the getCount() method but I see it always return 0 so cannot get the first item to be displayed in the combo box.
Code for my combo box is as shown below:
Ext.define('something....', {
controller: 'some Controller',
initComponent: function() {
var me,
me = this;
me.items = [{
xtype: 'form',
items: [{
xtype: 'combo',
itemId: 'nameId',
name:'nameId',
labelAlign: 'top',
fieldLabel: 'Name',
store: me._getNames(),
//disabled:some condition?true:false,//doesn't gray out combo
valueField:'dataId',
displayField: 'firstName',
editable: false,
listeners:{
afterrender: function(combo,component) {
var combo = me.down('#nameId');
var nameStore = combo.getStore();
var setFirstRecord = function(combo){
var nameStore = combo.getStore();
if(nameStore.getCount() === 1){
combo.setValue(nameStore.getAt(0));
}
}
if(nameStore.isLoaded() === false){
nameStore.on('load', function(nameStore){
setFirstRecord(combo);
},this,{
single:true
});
}else{
setFirstRecord(nameStore);
}
},
}
}]
}];
}
Code for the store is as below:
_getNames: function (){
var nameStore = Ext.create('Ext.data.Store', {
autoLoad: true,
proxy: {
type: 'ajax',
url: 'name.json',
reader: {
type: 'json',
rootProperty:'items',
transform: function (data) {
var data = {
items: [{
dataId: data[0].dataId,
firstName: data[0].name.firstName,
nameDetails: data[0].nameDetails
}]
}
return data;
}
},
},
fields: ['dataId', 'firstName','nameDetails']
});
return namesStore;
}
})
The result returned from the api to populate the store is as follows:
[
{
"dataId":1,
"name":{
"dataId":1,
"firstName":"Julie",
"code":"10",
"connectionList":[
"EMAIL"
]
},
"nameDetails":{
"EMAIL":{
"dataId":1,
"detail":"EMAIL"
}
}
}
]
Any suggestions on what's missing would be great!

I am written that example for you in Sencha Fiddle: https://fiddle.sencha.com/#view/editor&fiddle/3cdl
That solve your problem:
combo.getStore().on("load",
function (store, records, successful, operation, eOpts) {
if (store.getData().length > 0)
combo.setValue(store.getData().get(0).getData().id)
},
this
)

You must check if store is loaded or not and write appropriate code:
...
...
xtype: 'combo',
itemId: 'nameId',
name: 'nameId',
labelAlign: 'top',
fieldLabel: 'Name',
store: this._getNames(),
valueField: 'dataId',
displayField: 'firstName',
editable: false,
listeners: {
afterrender: function (combo) {
var store = combo.getStore();
var setFirstRecord = function (combo) {
var store = combo.getStore();
if (store.getCount() === 1) {
combo.setValue(store.getAt(0));
}
}
if (store.isLoaded() === false) {
store.on('load', function (store) {
setFirstRecord(combo);
}, this, {
single: true
});
} else {
setFirstRecord(combo);
}
}
}
...
...

Datatables date sort vs date display

I am using Datatables to display a table and I am pulling a list of datestimes from a MySQL database. These date times are not standard dates and look like this:
12/30/19 # 04:17 pm
How can I sort these accurately with Datatables?
Here is my code:
getRes(function (result) { // APPLIED CALLBACK
$('#resdatatable').DataTable({
data: result, // YOUR RESULT
order: [[ 0, "desc" ]],
autoWidth: false,
responsive: true,
columns: [
{ data: 'id', title: 'ID' },
{ data: 'bookingdatetime', title: 'Booking Date' },
{ data: 'name', title: 'Name' },
{ data: 'class', title: 'Class' },
{ data: 'pickupdatetime', title: 'Pick up' },
{ data: 'duration', title: 'Duration' },
{ data: 'dropdatetime', title: 'Drop off' },
{ data: 'age', title: 'Age' },
{ data: 'coverage', title: 'Coverage' },
{ data: 'quote', title: 'Quote' },
{
data: 'status',
title: 'Status',
render: function(data, type, row) {
let isKnown = statusList.filter(function(k) { return k.id === data; }).length > 0;
if (isKnown) {
return $('<select id="resstatus'+row.id+'" onchange="changeResStatus('+row.id+')" data-previousvalue="'+row.status+'">', {
id: 'resstatus-' + row.id, // custom id
value: data
}).append(statusList.map(function(knownStatus) {
let $option = $('<option>', {
text: knownStatus.text,
value: knownStatus.id
});
if (row.status === knownStatus.id) {
$option.attr('selected', 'selected');
}
return $option;
})).on('change', function() {
changeresstatus(row.id); // Call change with row ID
}).prop('outerHTML');
} else {
return data;
}
}
}
]
});
});
/**
* jQuery plugin to convert text in a cell to a dropdown
*/
(function($) {
$.fn.createDropDown = function(items) {
let oldTxt = this.text();
let isKnown = items.filter(function(k) { return k.id === oldTxt; }).length > 0;
if (isKnown) {
this.empty().append($('<select>').append(items.map(function(item) {
let $option = $('<option>', {
text: item.text,
value: item.id
});
if (item.id === oldTxt) {
$option.attr('selected', 'selected');
}
return $option;
})));
}
return this;
};
})(jQuery);
// If you remove the renderer above and change this to true,
// you can call this, but it will run once...
if (false) {
$('#resdatatable > tbody tr').each(function(i, tr) {
$(tr).find('td').last().createDropDown(statusList);
});
}
function getStatusList() {
return [{
id: 'Confirmed',
text: 'Confirmed'
}, {
id: 'Unconfirmed',
text: 'Unconfirmed'
}, {
id: 'Communicating',
text: 'Communicating'
}, {
id: 'Open',
text: 'Open'
}, {
id: 'Closed',
text: 'Closed'
}, {
id: 'Canceled',
text: 'Canceled'
}, {
id: 'Reallocated',
text: 'Reallocated'
}, {
id: 'No Show',
text: 'No Show'
}];
}
I need to sort bookingdatetime, pickupdatetime, dropdatetime accurately (they are currently being converted into MM/DD/YY in the PHP script)

Maybe you can prepend hidden <span> elements containing the respective unix timestamps in the cells that have dates (by manually parsing the dates). Then using such columns to sort alphabetically would practically sort time-wise.

combobox should remember the last selection

Below is my code to display three comboboxes, which will be Filter by severity, start release and end release. When I refresh the page I want comboboxes to remember what was selected earlier. Now it shows the current release in both the comboboxes.
Any help on this
launch: function() {
var that = this;
this.down('#SevFilter').add({
xtype: 'rallyattributecombobox',
cls: 'filter',
itemId: 'severity',
model: 'Defect',
labelWidth: 117,
fieldLabel : 'Filter By Severity:',
field: 'Severity',
allEntryText: '-- ALL --',
allowNoEntry: true,
_insertNoEntry: function(){
var record;
var doesNotHaveAllEntry = this.store.count() < 1 || this.store.getAt(0).get(this.displayField) !== this.allEntrylText;
if (doesNotHaveAllEntry) {
record = Ext.create(this.store.model);
console.log("record value", record);
record.set(this.displayField, this.allEntryText);
record.set(this.valueField, "-1");
this.store.insert(0, record);
}
/*var doesNotHaveNoEntry = this.store.count() < 2 || this.store.getAt(1).get(this.displayField) !== this.noEntryText;
if (doesNotHaveNoEntry) {
record = Ext.create(this.store.model);
record.set(this.displayField, this.noEntryText);
record.set(this.valueField, null);
this.store.insert(1, record);
}*/
},
listeners: {
//ready: this._onSevComboBoxLoad,
select: this._onSevComboBoxSelect,
scope: this
}
});
var button = this.down('#goButton');
button.on('click', this.goClicked, this);
this.down('#SevFilter').add({
xtype: 'rallyreleasecombobox',
//multiSelect: true,
itemId: 'priorityComboBox',
fieldLabel: 'Release Start:',
model: 'release',
width: 400,
valueField: 'ReleaseStartDate',
displayField: 'Name',
// multiSelect: true,
//field: 'Name',
_removeFunction: function(){
console.log("this.store");
},
listeners: {
//select: this._onSelect,
select: this._onFirstReleaseSelect,
scope: this
}
});
this.down('#SevFilter').add({
xtype: 'rallyreleasecombobox',
itemId: 'priorityComboBox2',
fieldLabel: 'Release End:',
model: 'release',
//multiSelect: true,
stateId: 'rally.technicalservices.trend.defect.release',
stateful: true,
stateEvents: ['change'],
width: 400,
valueField: 'ReleaseDate',
displayField: 'Name',
listeners: {
change: function(box) {
var start_date = this.down('#priorityComboBox2').getDisplayField();
this.logger.log(start_date);
},
ready: this._removeFutureReleases,
select: this._onSecondReleaseSelect,
// ready: this._onLoad,
scope: this
},
});
},

In javascript you may use localstorage.
Here is an app example that retains State and Release selections in respective compboboxes when page is refreshed:
Ext.define('CustomApp', {
extend: 'Rally.app.App',
componentCls: 'app',
items: [
{html:'Select a Filter checkbox to filter the grid'},
{
xtype: 'container',
itemId: 'StateFilter'
},
{
xtype: 'container',
itemId: 'ReleaseFilter'
}
],
launch: function() {
document.body.style.cursor='default';
this._createFilterBox('State');
this._createFilterBox('Release');
},
_createFilterBox: function(property){
this.down('#'+property+'Filter').add({
xtype: 'checkbox',
cls: 'filter',
boxLabel: 'Filter table by '+property,
id: property+'Checkbox',
scope: this,
handler: this._setStorage
});
this.down('#'+property+'Filter').add({
xtype: 'rallyattributecombobox',
cls: 'filter',
id: property+'Combobox',
model: 'Defect',
field: property,
value: localStorage.getItem(property+'Filtervalue'), //setting default value
listeners: {
select: this._setStorage,
ready: this._setStorage,
scope: this
}
});
},
_setStorage: function() {
localStorage.setItem('StateFiltervalue',Ext.getCmp('StateCombobox').getValue());
localStorage.setItem('ReleaseFiltervalue',Ext.getCmp('ReleaseCombobox').getValue());
console.log('localStorage State: ', localStorage.StateFiltervalue,', localStorage Release:', localStorage.ReleaseFiltervalue);
this._getFilter();
},
_getFilter: function() {
var filter = Ext.create('Rally.data.wsapi.Filter',{property: 'Requirement', operator: '=', value: 'null'});
filter=this._checkFilterStatus('State',filter);
filter=this._checkFilterStatus('Release',filter);
if (this._myGrid === undefined) {
this._makeGrid(filter);
}
else{
this._myGrid.store.clearFilter(true);
this._myGrid.store.filter(filter);
}
},
_checkFilterStatus: function(property,filter){
if (Ext.getCmp(property+'Checkbox').getValue()) {
var filterString=Ext.getCmp(property+'Combobox').getValue()+'';
var filterArr=filterString.split(',');
var propertyFilter=Ext.create('Rally.data.wsapi.Filter',{property: property, operator: '=', value: filterArr[0]});
var i=1;
while (i < filterArr.length){
propertyFilter=propertyFilter.or({
property: property,
operator: '=',
value: filterArr[i]
});
i++;
}
filter=filter.and(propertyFilter);
}
return filter;
},
_makeGrid:function(filter){
this._myGrid = Ext.create('Rally.ui.grid.Grid', {
itemId:'defects-grid',
columnCfgs: [
'FormattedID',
'Name',
'State',
'Release'
],
context: this.getContext(),
storeConfig: {
model: 'defect',
context: this.context.getDataContext(),
filters: filter
}
});
this.add(this._myGrid);
}
});
The source is available here.

You could use Sencha localstorage proxy. This way you can keep consistency in your project and use a localstorage based store across all your code.

You can use stateful and stateId configurations to enable last selection. Here is an example of my code. Here what I am doing is to create a custom combobox that will show two options: Platform and program. Then for stateId, you can use any string that you want:
_createCategoryFilter: function()
{
// The data store containing the list of states
var platformTypeList = Ext.create('Ext.data.Store',
{
fields: ['abbr', 'name'],
data : [
{"abbr":"PLAN", "name":"Platform"},
{"abbr":"CURR", "name":"Program"},
//...
]
});
// Create the combo box, attached to the states data store
var platformTypeFilter = Ext.create('Ext.form.ComboBox',
{
fieldLabel: 'Select category',
store: platformTypeList,
queryMode: 'local',
displayField: 'name',
valueField: 'abbr',
stateful: true,
stateId: 'categoryFilter',
listeners:
{
afterrender: function(param)
{
console.log('afterrender - category param is', param.rawValue);
CategoryFilterValue = param.rawValue;
LoadInformation();
},
select: function(param)
{
console.log('select - category param is', param.rawValue);
CategoryFilterValue = param.rawValue;
},
scope: this,
}
});
this.add(platformTypeFilter);
},

exjts hide column if all cells of the column are empty

I am trying to hide the column if all the cells in the column are empty. I am trying to do this in the column listener by iterating through the store but I guess the store isnt populated at that time. any suggestions to achieve this functionality?
Ext.define('com.abc.MyGrid' , {
extend: 'Ext.grid.Panel',
store : 'MyStore',
columns : [{
text : 'col1',
sortable : true,
dataIndex : 'col1'
}, {
text : 'col2 ',
sortable : true,
dataIndex : 'col2',
listeners:{
"beforerender": function(){
console.log(this.up('grid').store);
this.up('grid').store.each(function(record,idx){
// if all are null for record.get('col1')
// hide the column
console.log(record.get('col1'));
});
}
}
}
})
But this is isnt working. Basically the store loop in the column listener "before render" is not executing where as the above console(this.up('grid').store) prints the store with values.

Here you go, it doesn't handle everything but should be sufficient.
Ext.define('HideColumnIfEmpty', {
extend: 'Ext.AbstractPlugin',
alias: 'plugin.hideColumnIfEmpty',
mixins: {
bindable: 'Ext.util.Bindable'
},
init: function(grid) {
this.grid = grid;
this._initStates();
this.grid.on('reconfigure', this._initStates, this);
},
_initStates: function(store, columns) {
var store = this.grid.getStore(),
columns = this.grid.columns;
this.bindStore(store);
this.columns = columns;
if(store.getCount() > 0) {
this._maybeHideColumns();
}
},
/**
*#implement
*/
getStoreListeners: function() {
return {
load: this._maybeHideColumns
};
},
_maybeHideColumns: function() {
var columns = this.columns,
store = this.store,
columnKeysMc = new Ext.util.MixedCollection();
Ext.Array.forEach(columns, function(column) {
columnKeysMc.add(column.dataIndex, column);
});
Ext.Array.some(store.getRange(),function(record){
//don't saw off the branch you are sitting on
//eachKey does not clone
var keysToRemove = [];
columnKeysMc.eachKey(function(key) {
if(!Ext.isEmpty(record.get(key))) {
keysToRemove.push(key);
}
});
Ext.Array.forEach(keysToRemove, function(k) {
columnKeysMc.removeAtKey(k);
});
return columnKeysMc.getCount() === 0;
});
columnKeysMc.each(function(column) {
column.hide();
});
}
});
Here is an example:
Ext.create('Ext.data.Store', {
storeId:'simpsonsStore',
fields:['name', 'email', 'phone'],
data:{'items':[
{ 'name': 'Lisa', "email":"lisa#simpsons.com", "phone":"555-111-1224" },
{ 'name': 'Bart', "email":"bart#simpsons.com", "phone":"555-222-1234" },
{ 'name': 'Homer', "email":"home#simpsons.com", "phone":"555-222-1244" },
{ 'name': 'Marge', "email":"marge#simpsons.com", "phone":"555-222-1254" }
]},
proxy: {
type: 'memory',
reader: {
type: 'json',
root: 'items'
}
}
});
Ext.create('Ext.grid.Panel', {
title: 'Simpsons',
store: Ext.data.StoreManager.lookup('simpsonsStore'),
columns: [
{ text: 'Name', dataIndex: 'name' },
{ text: 'Email', dataIndex: 'email', flex: 1 },
{ text: 'Phone', dataIndex: 'phone' },
{ text: 'Says Doh', dataIndex: 'saysDoh'}
],
plugins: {ptype: 'hideColumnIfEmpty'},
height: 200,
width: 400,
renderTo: Ext.getBody()
});
You can see in the example that saysDoh column is hidden.

If you want to iterate over the store, you need to put a listener on the load event of your store. The beforerender doesn't mean that your store is already loaded.
I would put the creation of you store in the initComponent. Something like this:
Ext.define('com.abc.MyGrid', {
extend: 'Ext.grid.Panel',
columns: [{
text: 'col1',
sortable: true,
dataIndex: 'col1'
}, {
text: 'col2 ',
sortable: true,
dataIndex: 'col2'
},
initComponent: function () {
var me = this;
//Create store
var myStore = Ext.create('MyStore');
myStore.load(); // You can remove this if autoLoad: true on your store.
//Listen to load event (fires when loading has completed)
myStore.on({
load: function (store, records, success) {
store.each(function (record, idx) {
console.log(record.get('col1'));
});
}
});
//Apply the store to your grid
Ext.apply(me, {
store: myStore
});
me.callParent();
}
});

ExtJS-3, Ext.grid.GridPanel, muti-row checkboxes: how do I submit all checked items at once?

I'm using ExtJS3 and I have a Ext.grid.GridPanel where each row has a checkbox on the left. At the top there are two buttons: 'refresh' and 'submit'. I want to be able to select multiple rows and submit all of them in one click of the submit button. As it is right now when I select multiple rows and hit submit it will submit the first one, then remove that item from the grid, and I have to hit submit again (the formerly checked rows are still checked).
How do I change the following code to make the submit button send all of the rows at one time?
var dataStore = new Ext.data.SimpleStore({ fields: [
{name: 'node'},
{name: 'ip'},
{name: 'groups'}
]});
var checkBoxSelMod = new Ext.grid.CheckboxSelectionModel();
var dataGrid = new Ext.grid.GridPanel ({
renderTo: document.body,
clickstoEdit: 2,
selModel : checkBoxSelMod,
xtype: 'grid',
layout: 'fit',
sm: new Ext.grid.CheckboxSelectionModel(),
tbar: [
{
text: 'Refresh',
icon: '$nroot/includes/extjs3/resources/images/slate/button/table_refresh.png',
cls: 'x-btn-text-icon',
handler: function() {
window.location = '$nroot/index.php/imaging/index';},
scope: this,
},
{
text: 'Submit Machine(s)',
icon: '$nroot/includes/extjs3/resources/images/slate/button/table_add.png',
cls: 'x-btn-text-icon',
handler: function() {
var sm = dataGrid.getSelectionModel();
var sel = sm.getSelected();
if (sm.hasSelection()) {
Ext.Msg.show({
title: 'Image Machine?',
buttons: Ext.MessageBox.YESNO,
msg: 'Continue with imaging (no undo!) process for server: '+sel.data.node+'?',
fn: function(btn){
if (btn == 'yes'){
var conn = new Ext.data.Connection();
conn.request({
url: '$nroot/index.php/imaging/image/',
params: {
action: 'delete',
node: sel.data.node,
mgmtip: sel.data.ip
},
success: function(resp,opt) {
dataGrid.getStore().remove(sel);
},
failure: function(resp,opt) {
Ext.Msg.alert('Error','Unable to image server - check debug logs');
}
});
}
}
});
}
}
}
],
store: dataStore,
columns: [
checkBoxSelMod,
{ id: 'node', header: "Node", width: 150, sortable: true, dataIndex: 'node'},
{ id: 'ip', header: "IP", width: 120, sortable: false, dataIndex: 'ip'},
{ id: 'groups', header: "Groups", width: 100, sortable: true, dataIndex: 'groups'},
],
stripeRows: true,
autoExpandColumn: 'node',
listeners: {
render: function(){ this.store.loadData(dataList); }
}
})});
When I change the code from getSelected to getSelections it returns this on page load:
item type is invalid for AcceptItem action
I can't find any examples that show multi-select with submit for GridPanels. Is there one I can reference?
EDIT, based on the solutions below I've modified the code to work as follows:
var sels = sm.getSelections();
if (sels.length > 0) {
var ips = [], nodes = [];
Ext.each(sels, function(sel) {
ips.push(sel.get('ip'));
nodes.push(sel.get('node'));
});
Ext.Msg.show({
title: 'Image Machine?',
buttons: Ext.MessageBox.YESNO,
msg: 'Continue with imaging (no undo!) process for servers: '+nodes.join(",")+'?',
fn: function(btn){
if (btn == 'yes'){
Ext.each(sels, function(sel) {
var conn = new Ext.data.Connection();
conn.request({
url: '$nroot/index.php/imaging/image/',
params: {
node: sel.get('node'),
mgmtip: sel.get('ip')
},
success: function(resp,opt) {
dataGrid.getStore().remove(sel);
},
failure: function(resp,opt) {
Ext.Msg.alert('Error','Unable to image server - check debug logs');
}
});
})
}
}
});
}
}

The most simple approach is to loop through the selected records and ask a question for each record.
var sels = sm.getSelections();
Ext.each(sels, function(sel) {
var node = sel.get('node'),
ip = sel.get('ip');
Ext.Msg.show({
title: 'Image Machine?',
buttons: Ext.MessageBox.YESNO,
msg: 'Continue with imaging (no undo!) process for server: '+node+'?',
fn: function(btn){
if (btn == 'yes'){
var conn = new Ext.data.Connection();
conn.request({
url: '$nroot/index.php/imaging/image/',
params: {
action: 'delete',
node: node,
mgmtip: ip
},
success: function(resp,opt) {
dataGrid.getStore().remove(sel);
},
failure: function(resp,opt) {
Ext.Msg.alert('Error','Unable to image server - check debug logs');
}
});
}
}
});
});
However, this may not be nice for the user to get a prompt for every row selected in the DataGrid. But if your service ('$nroot/index.php/imaging/image/') support posting several items you can ask the user one time and post all of them. I.e.
var sels = sm.getSelections();
if (sels.length > 0) {
var ips = [], nodes = [];
Ext.each(sels, function(sel) {
ips.push(sel.get('ip'));
nodes.push(sel.get('node'));
});
Ext.Msg.show({
title: 'Image Machine?',
buttons: Ext.MessageBox.YESNO,
msg: 'Continue with imaging (no undo!) process for servers: '+nodes.join(",")+'?',
fn: function(btn){
if (btn == 'yes'){
var conn = new Ext.data.Connection();
conn.request({
url: '$nroot/index.php/imaging/image/',
params: {
action: 'delete',
nodes: nodes,
mgmtips: ips
},
success: function(resp,opt) {
Ext.each(sels, function() { dataGrid.getStore().remove(this) });
},
failure: function(resp,opt) {
Ext.Msg.alert('Error','Unable to image server - check debug logs');
}
});
}
}
});
}