Trouble implementing NavigationView - Sc.View is not observable - javascript

When I try to push a view on the view stack of my NavigationView using
MyApp.getPath('mainPage.mainPane.content.nav').push(MyApp.MyView);
It gives me this:
Uncaught TypeError: Object function (props) {
this.__sc_super__ = ret.prototype;
return this._object_init(props);
} has no method 'get'
Obviously, SC.View is not KVO compliant. Then is it a bug in the SproutCore framework? Because they do this in the SC.NavigationView source:
view.get("topToolbar"); // with `view` being the view I passed in as shown above
MyApp.MyView looks like this:
MyApp.MyView = SC.View.extend({
childViews: 'search results'.w(),
search: SC.TextFieldView.design({
layout: { centerX: 0, top: 40, width: 400, height: 30 },
hint: "Search"
}),
results: SC.TemplateView.design({
templateName: 'results'
}),
topToolbar: SC.NavigationBarView.design({
childViews: ['title'],
layout: { height: 44 },
title: SC.LabelView.design({
controlSize: SC.LARGE_CONTROL_SIZE,
layout: { width: 100, height: 24, centerX: 0, centerY: 0 },
value: 'Title'
})
})
});
But I think the SproutCore developers are way smarter and more experienced than I am, so it's probably something I did.
Why doesn't my SC.View subclass have a get() method?

It looks like your view hasn't been created yet, so it's still a class rather than an instance. Classes don't have .get, only instances. If you're getting fancy (definitely encouraged :) ) with passing views around, rather than simply letting the childView hierarchy handle them, you have to create them as well. Try passing in MyApp.MyView.create() instead.

Related

checkbox list does not update in flutter getx

I am using GetX for the state management in flutter project. My problem is when I click on the checkbox it updates the state in controller but does not show the result in UI. In general the changed state should change the UI too. I am not sure what is the problem but I think there is a bug in using the observable variable in getx. How to solve this problem? If the post is not clear then please ask me.
This is the view.
class FilterBottomSheetWidget extends GetView<SearchController> {
#override
Widget build(BuildContext context) {
return Container(
height: Get.height - 90,
child: Stack(
children: <Widget>[
Padding(
padding: const EdgeInsets.only(top: 80),
child: Container(
padding: EdgeInsets.only(top: 20, bottom: 15, left: 4, right: 4),
child: controller.expiringContractStatus.isEmpty ? CircularLoadingWidget(height: 100)
: SingleChildScrollView(
scrollDirection: Axis.vertical,
child: ExpansionTile(
title: Text("Contract Status".tr, style: Get.textTheme.bodyText2),
children: List.generate(controller.expiringContractStatus.length, (index) {
var _expiringContractStatus = controller.expiringContractStatus.elementAt(index);
return CheckboxListTile(
controlAffinity: ListTileControlAffinity.trailing,
value: _expiringContractStatus["isCheck"], // ************
onChanged: (value) {
controller.itemChange(value, index); // ************
controller.update();
},
title: Text(
_expiringContractStatus["title"],
style: Get.textTheme.bodyText1,
overflow: TextOverflow.fade,
softWrap: false,
maxLines: 1,
),
);
}),
initiallyExpanded: true,
);
}
)
),
),
// more widgets
],
),
);
}
}
This is SearchController.
class SearchController extends GetxController {
final expiringContractStatus = <Map>[
{
"title": "aaa",
"isCheck": false
},
{
"title": "bbb",
"isCheck": false
},
{
"title": "ccc",
"isCheck": false
}
].obs;
#override
void onInit() async {
await refreshSearch();
super.onInit();
}
void itemChange (bool value, int index) {
expiringContractStatus[index]["isCheck"] = value; // *************
update();
}
}
Updated Answer:
If you tried wrapping an an Obx and it didn't work, use GetBuilder<SearchController> instead.
GetBuilder<SearchController>(
builder: (_) => controller.expiringContractStatus.isEmpty ? CircularLoadingWidget(height: 100)
: SingleChildScrollView(...))
When you call update() it will trigger a rebuild no matter what, with the updated values. The only reason I can think of why Obx didn't work is that perhaps when it comes to lists in only responds to an addition or removal of an item in the list and not a change in a property nested inside.
In general, you'll probably find that in most cases using an observable stream based variable is not really needed. GetBuilder can handle most or all of what you need done unless you're doing something stream based (binding to an external Firebase collection for example). Nothing wrong with either, but GetBuilder is the most performant option as streams by their nature are a bit more expensive.
Original answer:
I suggest you read the docs regarding proper usage before claiming there's a bug in someone else's code. That goes for any package that you're using.
It's stated all over the Readme and in the basic counter app example that observable variables need to be placed in an Obx widget, otherwise there's nothing triggering a rebuild based on the updated state of an observable GetX variable.
The child of your Container should be
Obx(() => controller.expiringContractStatus.isEmpty ? CircularLoadingWidget(height: 100)
: SingleChildScrollView(...))

PowerBI Embedded - how to customize menu operation/context and custom layout

I have integrated powerbi-embedded with Angular 9 web app also add code for custom layut but it's not working.
I want to customize operations menu /context and custom layout.
Configuration object -
const config: any = {
type: 'report',
uniqueId: 'report-id',
permissions: this.model.Permissions.All,
embedUrl: 'embed-url',
accessToken: 'access-token',
settings: {
layoutType: this.models.LayoutType.Custom,
customLayout: {
pageSize: {
type: this.models.PageSizeType.Custom,
width: 1600,
height: 1200
},
displayOption: this.models.DisplayOption.ActualSize,
pagesLayout: {
"MyReportSection007" : {
defaultLayout: {
displayState: {
mode: this.models.VisualContainerDisplayMode.Hidden
}
},
visualsLayout: {
"VisualContainer1": {
x: 1,
y: 1,
z: 1,
width: 400,
height: 300,
displayState: {
mode: this.models.VisualContainerDisplayMode.Visible
}
},
"VisualContainer2": {
displayState: {
mode: this.models.VisualContainerDisplayMode.Visible
}
},
}
}
}
}
}
};
Above config. not working. any idea how can i achived customization in menu operation and layout.
I'm following below docs -
https://microsoft.github.io/PowerBI-JavaScript/demo/v2-demo/index.html#
https://github.com/microsoft/PowerBI-JavaScript/wiki/Custom-Layout
Thanks,
Your query is not clear since you have not shared any error message.
Though, code snippet that you shared offers a correct solution but, it might be possible that you are using wrong names for visual containers (i.e. VisualContainer1 or VisualContainer2) or the report page name (i.e. MyReportSection007). Ensure that you are providing correct names.
And if possible, please share the error message as well.

Custom parameters for bootstrap-table server side pagination

I have a service created with spring boot, for which I am trying to display its data using the bootstrap-table library.
My service allows pagination with the query parameters ?page=x&size=y, where page starts at 0.
The response for the query returns something that looks like this:
{
"_embedded": {
"catalogueOrders": [ .... ]
},
"page": {
"size": 20,
"totalElements": 11,
"totalPages": 1,
"number": 0
}
}
Where _embedded.catalogueOrders contains all the data, and page contains the totals.
I tried configuring my table as following:
$('#orderTable').bootstrapTable({
url: "http://localhost:8088/catalogueOrders?orderStatus=" + orderState,
columns: [
{
field: 'orderId',
title: 'Order ID'
},
{
field: 'priority',
title: 'Priority'
}
],
pagination: true,
sidePagination: 'server',
totalField: 'page.totalElements',
pageSize: 5,
pageList: [5, 10, 25],
responseHandler: function(res) {
console.log(res)
return res["_embedded"]["catalogueOrders"]
}
})
This is able to retrieve and display the data, however it returns all the results, clearly due to it not knowing how to apply the pagination. Total elements doesn't seem to be retrieved either, as the table displays Showing 1 to 5 of undefined rows. Also, if I replace the responseHandler with dataField: '_embedded.catalogueOrders', it's no longer displaying the data.
How do I configure the query parameters needed for pagination?
And am I doing anything wrong when I try and configure dataField and totalField?
Figured it out:
Not sure what was wrong with the dataField and totalField, but it seems to not work with nested fields. To resolve this, I formatted the response into a new object inside responseHandler:
dataField: 'data',
totalField: 'total',
responseHandler: function(res) {
return {
data: res["_embedded"]["catalogueOrders"],
total: res["page"]["totalElements"]
}
}
As for the query parameters, by default, bootstrap-table provides the parameters limit and offset. To customize that and convert to size and page like in my case, the queryParams function can be provided:
queryParams: function(p) {
return {
page: Math.floor(p.offset / p.limit),
size: p.limit
}
}
one, yes, it doesn’t work with nested fields. if you want to use nested fields, try on sass code (get the compiler, just search up on web, there’s plenty of posts on the web).
two, i’m not exactly sure what you’re talking about, but you can set up a css variable
:root{
/*assign variables*/
—-color-1: red;
—-color-2: blue;
}
/*apply variables
p {
color: var(-—color-1):
}
you can find loads of info on this on the web.

Binding ResourceBundle property to list item

In SAPUI5, you can often bind resource bundle properties to items in several ways. I'm attempting to do it in JavaScript, using data provided by an Odata service, but the methods I've found here so far haven't worked. I've tried two different ways:
How to Use Internalization i18n in a Controller in SAPUI5?
binding issue with sap.m.List and model configured in manifest.json
And neither of these have worked. I feel this is because I'm inside a items list, inside of a dialog that's causing my issue:
My code is:
var resourceBundle = this.getView().getModel("i18n");
if (!this.resizableDialog) {
this.resizableDialog = new Dialog({
title: 'Title',
contentWidth: "550px",
contentHeight: "300px",
resizable: true,
content: new List({
items: {
path: path,
template: new StandardListItem({
title: resourceBundle.getProperty("{Label}"),//"{ path : 'Label', fomatter : '.getI18nValue' }",
description: "{Value}"
})
}
}),
beginButton: new Button({
text: 'Close',
press: function () {
this.resizableDialog.close();
}.bind(this)
})
});
getI18nValue : function(sKey) {
return this.getView().getModel("i18n").getProperty(sKey);
},
Using the 2nd method above, never calls the JavaScript method. I didn't think it would work, as it's more JSON based. The first method, loads the data fine, but instead of showing the resource bundle text, it shows just the text found inside of the {Label} value.
The value found inside of {Label} matches the key found inside of the resouce bundle i.e. without the i18n> in front, like you would have in a view.
Anyone have any suggestions?
Use of formatter will solve your problem, but the way you're doing it is wrong. Try this, it will solve your problem.
var resourceBundle = this.getView().getModel("i18n");
if (!this.resizableDialog) {
this.resizableDialog = new Dialog({
title: 'Title',
contentWidth: "550px",
contentHeight: "300px",
resizable: true,
content: new List({
items: {
path: path,
template: new StandardListItem({
title: {
parts: [{ path: "Label" }],
formatter: this.getI18nValue.bind(this)
},
description: "{Value}"
})
}
}),
beginButton: new Button({
text: 'Close',
press: function () {
this.resizableDialog.close();
}.bind(this)
})
});
}
And the formatter function getI18nValue will be like this,
getI18nValue: function(sKey) {
return this.getView().getModel("i18n").getResourceBundle().getText(sKey);
},

Extending MessageBox as View - Ext JS 4.1

I'm trying to extend a MessageBox within a view so I can reuse it throughout my application.
It seems that when I do so, I lose some of the default functionality that makes the messagebox useful (msg, button definitions, icon definitons, default drag constraints, etc). Documentation is a little confusing as it seems configs should be defined within the show() function, and I'm unsure of how to set them within my view.
How can I truly extend a messagebox component as a view?
Basic MessageBox (what I want to create with my view):
Ext.Msg.show({
title:'Error',
msg: 'There was an error.',
buttons: Ext.Msg.YESNOCANCEL,
icon: Ext.Msg.QUESTION
});
Renders:
but when I show my view:
Ext.create('IOL.view.app.Message').show();
I basically end up with a vanilla Panel/Window component
Ext.define('IOL.view.app.Message', {
extend : 'Ext.window.Window',
config: {
},
constructor: function(config) {
this.initConfig(config);
this.callParent(arguments);
},
initComponent : function() {
Ext.apply(this, {
xtype: 'messagebox',
width: 400,
height: 200,
title:'Error',
html: 'There was an error.',
buttons: [
{ text: 'Button 1' }
]
});
this.callParent(arguments);
}// initComponent
});
Renders:
It seems you are extending an Ext.window.Window and applying the messagebox configs to it. Why not just extend Ext.window.MessageBox:
Ext.define('IOL.view.app.Message', {
extend : 'Ext.window.MessageBox',
width: 400,
height: 200,
title: 'Error',
html: 'There was an error.',
buttons: Ext.Msg.YESNOCANCEL,
icon: Ext.Msg.ERROR,
// whatever else you want to do
initComponent : function() {
this.callParent(arguments);
}
});
#EricCook brings up a good point below. The MessageBox class is designed for reuse in the app as a singleton not really for subclassing.
In your question you said:
I'm trying to extend a MessageBox within a view so I can reuse it
throughout my application
I can understand that if you want to create a different type of messagebox that you would call with the normal Ext.Msg.show method, you could extend the MessageBox with your own buttons or icons I suppose.
But for regular use this isn't something you need to extend. For repeated use in your app you could hold a reference to the message box config you want in the controller like:
// SomeController.js
errorMsg: {
title:'Error',
msg: 'There was an error.',
buttons: Ext.Msg.YESNOCANCEL,
icon: Ext.Msg.QUESTION
},
Then whenever you want to call that type of message you could use (assuming the scope is the controller itself, or you could get a reference to the controller beforehand):
Ext.Msg.show(this.errorMsg);

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