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YouTrack Workflow: Prevent Deletion

I've created a very simple workflow task for a cloud based YouTrack instance. The idea is to prevent (stop workflow) deletion of issues (we'd prefer to keep all issues, even if they were submitted by mistake). The code is provided below.
var entities = require('#jetbrains/youtrack-scripting-api/entities');
var workflow = require('#jetbrains/youtrack-scripting-api/workflow');
exports.rule = entities.Issue.onChange({
// TODO: give the rule a human-readable title
title: 'When-issue-is-deleted',
guard: function(ctx) {
return ctx.issue.becomesRemoved;
},
action: function(ctx) {
workflow.check(false, 'Do not remove issues, please');
}
});
Though I believe it should work, when I tried to remove a new just created issue I received no error messages, and the issue was removed.

I'd recommend an easier way - just disable 'Delete issue' permission for the respective roles (https://www.jetbrains.com/help/youtrack/standalone/Create-and-Edit-Roles.html#editing_existing_roles) and users with these roles will not be able to delete issues.
As for becomesRemoved property which doesn't work properly - this is a known issue, please follow this ticket to receive further updates on it: https://youtrack.jetbrains.com/issue/JT-29303.

Just in case someone else stumbles upon this issue (quoting https://youtrack.jetbrains.com/issue/JT-55220)
To make your onChange rule triggered when an issue becomes removed, you'll need to specify the runOn attribute in the rule's declaration.
runOn: {
change: false,
removal: true
}

Shopware 5, open BatchProcess window from Own Plugin

I hope its not to harsh to ask not to mince matters.
Here we go:
I have a problem developing a custom Plugin for Shopware 5.
I already have a working plugin which lists orders for certain criteria.
Now I want a Button (which i already have) in the toolbar of this grid-window.
The Button should open the Batch Process Window which is already available in the native "Order" Window of shopware.
Q: How Can I open this app with the selected Ids of my grid?
Heres what I have:
[...]
createToolbarButton: function () {
var me = this;
return Ext.create('Ext.button.Button', {
text: 'Batch Processing Orders',
name: 'customBatchProcessButton',
cls: 'secondary',
handler: function () {
me.onClickCustomBatchProcessButton(me);
}
});
},
onClickCustomBatchProcessButton: function(me){
var thisGrid = me.getTransferGrid();
var records = thisGrid.getSelectionModel().getSelection();
console.log("Grid");
console.log(thisGrid);
console.log("records");
console.log(records);
Shopware.app.Application.addSubApplication({
name: 'Shopware.apps.Order',
action: 'batch',
params: {
mode: 'multi',
records: records
}
});
}
[...]
It always opens the normal view of the order window. (no error in console)
Anybody has a suggestions?
That would be great!
Thanks for your time :)
Greetings
EDIT:
Hey, thank you for your reply so far.
I managed to open the Batch-process-window like this:
me.getView('Shopware.apps.Order.view.batch.Window').create({
orderStatusStore: Ext.create('Shopware.apps.Base.store.OrderStatus').load(),
records: orderRecords,
mode: 'multi'
}).show({});
But now the Problem ist, the Event for the Batch-Process isn't applied on the button on the form...
I am still on try and error.

Many Shopware ExtJS SubApplications can be executed from another app with certain parameters exactly the way you're trying to. Unfortunately I don't see any code in the Order plugin that might lead to the desired result. You can see what actions/params a Shopware SubApplication supports by reading the init function of the main controller -> Shopware.apps.Order.controller.Main
Shopware.apps.Customer.controller.Main from the Customer plugin for example accepts an action like you are using it – it is checking for this:
if (me.subApplication.action && me.subApplication.action.toLowerCase() === 'detail') {
if (me.subApplication.params && me.subApplication.params.customerId) {
//open the customer detail page with the passed customer id
...
In the Order plugin there is similar code, but it just takes an order ID and opens the detail page for the corresponding order. It apparently doesn't feature the batch.Window
You might be able to reuse this class somehow, but that might be a ton of code you need to adapt from the actual Order plugin. If you really need this feature, you can carefully read how the Order plugin is initializing the window and its dependencies and have a try.
I'd rather go for developing a lightweight module in this scenario (It's a frame within a backend window that just uses controllers and template views with PHP/Smarty/HTML)

ExtJS 4 grid and some problems with mask

I have a not too big grid (30x20) with numbers in cells. I have to display all, calculate them in different ways (by columns, rows, some cells, etc.) and write values to some cells. This data is also written and read from db table fields. Everything is working, excluding simple (theoretically) mask tools.
In time of e.g. writing data to the field in the table I try to start mask and close it on finish. I used such a “masks” very often but only in this situation I have a problem and can’t solve it.
I prepare this mask the following way:
msk = new Ext.LoadMask(Ext.getBody(), { msg: "data loading ..." });
msk.show();
[writing data loops]
msk.hide();
msk.destroy();
I also tried to use grid obiect in place of Ext.getBody(), but without result.
I found also that the program behaves in a special way – loops which I use to write data to the table field are "omitted" by this mask, and it looks like loops are working in the background (asynchronously).
Would you be so kind as to suggest something?
No, no, no, sorry guys but my description isn’t very precise. It isn’t problem of loading or writing data to the database. Let’s say stores are in the memory but my problem is to calculate something and write into the grid. Just to see this values on the screen. Let me use my example once again:
msk = new Ext.LoadMask(Ext.getBody(), { msg: "data loading ..." });
msk.show();
Ext.each(dataX.getRange(), function (X) {
Ext.each(dataY.getRange(), function (Y) {
…
X.set('aaa', 10);
…
}
msk.hide();
msk.destroy();
And in such a situation this mask isn’t visible or is too fast to see it.
In the mean time I find (I think) a good description of my problem but still can’t find a solution for me. When I use e.g. alert() function I see this mask, when I use delay anyway, mask is too fast. Explanation is the following:
The reason for that is quite simple - JS is single threaded. If you modify DOM (for example by turning mask on) the actual change is made immediately after current execution path is finished. Because you turn mask on in beginning of some time-consuming task, browser waits with DOM changes until it finishes. Because you turn mask off at the end of method, it might not show at all. Solution is simple - invoke store rebuild after some delay.*

I have no idea how is your code looks in general but this is some tip that you could actually use.
First of all loading operations are asynchronously so you need to make that mask show and then somehow destroy when data are loaded.
First of all check if in your store configuration you have autoLoad: false
If yes then we can make next step:
Since Extjs is strongly about MVC design pattern you should have your controller somewhere in your project.
I suppose you are loading your data on afterrender or on button click event so we can make this:
In function for example loadImportantData
loadImportantData: function(){
var controller = this;
var store = controller.getStore('YourStore'); //or Ext.getStore('YourStore'); depends on your configuration in controller
var myMask = new Ext.LoadMask(Ext.getBody(), {msg:"Please wait..."});
myMask.show();
store.load({
callback: function (records, operation, success) {
//this callback is fired when your store load all data.
//then hide mask.
myMask.hide();
}
});
}
When data is loaded your mask will disappear.

If you have a reference to the grid, you can simply call grid.setLoading(true) to display a loading mask over the grid at any time.

FullCalendar - After initial load, dynamically updating ajax parameters not working

I'm working with http://arshaw.com/fullcalendar/ and I would like to dynamically filter the events shown based on various checkboxes on the page. I am using an ajax source (with filters passed as parameters) to gather data.
The problem I am running into is once I load the calendar, I cannot, for the life of me (or stackoverflow searches) figure out how to update the parameters. It seems once the calendar is loaded, those parameters are "baked" and cannot be changed.
I have tried every combination of addEventSource, removeEventSources, removeEvents, refetchEvents, etc (as recommended here: rerenderEvents / refetchEvents problem), with still no luck.
My current solution is to re-initiate the entire .fullCalendar every time a filter is updated-- this is leading to tons of issues as well and really isn't an elegant solution.
Any ideas on a simpler way to do this? Refetching your source with updated parameters each time should be automatic. I really do appreciate your help.

In my code i do like that :
I have an array with the calendars id to display and i update it when the user check or uncheck the checkbox.
In fullCalendar initialization I retrieve all events and i filter them with this function :
function fetchEvent( calendars, events) {
function eventCorrespond (element, index, array) {
return $.inArray(element.calendarid, calendars) > -1;
}
return events.filter(eventCorrespond);
}
$('#calendar').fullCalendar({
events: function(start, end, callback) {
//fetch events for date range on the server and retrieve an events array
//update calendars, your array of calendarsId
//return a filtered events array
callback(fetchEvent(calendars , events));
}
});
and when the user check or uncheck a checkbox i do :
$('#calendar').fullCalendar('refetchEvents');

The solution that works for me is:
$('#calendar').fullCalendar('removeEventSource', 'JsonResponse.ashx?technicans=' + technicians);
technicians = new_technicians_value;
$('#calendar').fullCalendar('addEventSource', 'JsonResponse.ashx?technicans=' + technicians);
After "addEventSource" events will be immediately fetched from the new source.
full answer here https://stackoverflow.com/a/36361544/5833265

How to avoid showing loading text in Ext.form.ComboBox?

I use Ext.form.ComboBox in very similar way as in this example:
http://extjs.com/deploy/dev/examples/form/forum-search.html
What annoys me is that when the ajax call is in progress it shows loading text and I cannot see any results from before.
Eg I input 'test' -> it shows result -> I add 'e' (search string is 'teste') -> result dissapear and loading text is shown, so for a second I cannot see any result and think about if it's not what I'm searching for...
How can I change this to simply not to say anything when 'loading'...

The solution is to override 'onBeforeLoad' method of Ext.form.ComboBox:
Ext.override(Ext.form.ComboBox,
{ onBeforeLoad:
function() {this.selectedIndex = -1;}
});
Please be warned, that this overrides the class method, so all of the ComboBox instances will not have the LoadingText showing. In case you would like to override only one instance - please use plugins (in quite similar way).
You may also look at Ext.LoadingMask to set an appropriate loading mask to aside element if you wish.

If you don't show loading message to user how user will know what is happening? User will notice that its already loading results so may wait to see the results, but if nothing displayed then user wouldn't know if its bringing new data or not.

You may monit the expand event of the combobox and set picker loading to false.
// in the controller
init: function() {
this.control({
"form combobox[id=fieldId]": {
expand: function(combobox) {
combobox.getPicker().setLoading(false);
}
}
});
}