Currently I'm working on an app that displays a chart of defects. The chart is to be filtered by a selection of checkboxes that the user can change around to fit his / her needs. These checkboxes are located in the gear menu of the app, under 'settings'. In App.js I have a function that looks like this:
getSettingsFields: function() {
return [
{
xtype: 'fieldcontainer',
fieldLabel: 'States',
defaultType: 'checkboxfield',
items: [
{...}
...
]
}
];
}
This function works perfectly so far and displays the items I left out of the code [they're not important to the question]. The problem is that now I want to add a ComboBox into the same settings page with custom values. The box should have the text [Days, Weeks, Months, Quarters] inside that will further filter which defects to display in the chart. I tried changing the getSettingsFields function to the following:
getSettingsFields: function() {
var myStore = Ext.create('Ext.data.Store', {
fields: ['value', 'range'],
data: [
{'value':'day', 'range':'Days'}, //test data for ComboBox
{'value':'week', 'range':'Weeks'}
]
});
return [
{
xtype: 'combobox',
fieldLabel: 'Date Range',
store: myStore,
displayField: 'range',
valueField: 'value'
},
{
xtype: 'fieldcontainer',
fieldLabel: 'States',
defaultType: 'checkboxfield',
items: [
{...}
...
]
}
];
}
Now when I run the app and click on the 'settings' button, everything disappears - even the field of checkboxes. Any explanation to why this is not working would be very helpful!
You're basically doing everything correctly- you've just stumbled upon a really subtle bug. The underlying issue is that there is an infinite recursion that occurs when the settings panel is attempting to clone the settings field config array due to the inclusion of the store. The following code will work around the issue:
{
xtype: 'rallycombobox',
storeConfig: {
fields: ['value', 'range'],
data: [
{'value':'day', 'range':'Days'}, //test data for ComboBox
{'value':'week', 'range':'Weeks'}
]
},
storeType: 'Ext.data.Store',
fieldLabel: 'Date Range',
displayField: 'range',
valueField: 'value'
}
It's basically the same as what you had but uses the rallycombobox instead and passes in storeType and storeConfig to get around the store cloning problem.
Related
Im new at this sencha thingy and im trying to experiment a bit with it. I've been making some very simple tests and now i've reached the point where i want to pass the data from one file to another. To make it easier to understand im trying to get the data from the following text box to make a simple filter tool.
the textfield has been created in the following piece of code in the file Filters.js
Ext.define('Prj01Filtro.view.main.Filters', {
extend:'Ext.form.Panel',
xtype: 'Filters',
alias: 'form.formFilter',
requires: [
'Prj01Filtros.view.main.FilterController'
],
controller: 'controllerFilter',
items:[
{
margin: '0 0 10 0',
buttons: [
{
xtype: 'textfield',
fieldLabel: 'Filter',
name: 'textFieldSearch'
}, {
name: 'buttonSearch',
text: 'Buscar',
listeners: {
click: 'onClickFilter'
}
}, {
name: 'buttonRemoveFilter',
text: 'X',
listeners: {
click: 'onClickRemove'
}
}
]
}
]
The code of the buttons have been located in a file named FilterController.js
Ext.define('Prj01Filtros.view.main.FilterController',{
extend: 'Ext.app.ViewController',
alias: 'controller.controllerFilter',
onClickFilter: function() {
//Code to apply the filter
},
onClickRemove: function() {
//code to remove the filter
}
})
Finally the code of the table is located in a file named List.js
Ext.define('Prj01Filtros.view.main.List', {
extend: 'Ext.grid.Panel',
xtype: 'mainlist',
plugins: 'gridfilters',
requires: [
'Prj01Filtros.store.Personnel'
],
title: 'Personnel',
store: {
type: 'personnel'
},
columns: [
{ text: 'Name', dataIndex: 'name', align: 'left', filter: {
type: 'string'
}},
{ text: 'Email', dataIndex: 'email', flex: 1, align: 'left', filter: {
type: 'string'
}},
{ text: 'Phone', dataIndex: 'phone', flex: 1, align: 'left', filter: {
type: 'string'
}},
],
listeners: {
select: 'onItemSelected'
},
});
So my goal is to make a function in FilterController.js that can be called from Filters.js which sets the value for the filters applied in the columns of List.js but im kind of stuck on how to set the value property for the filter from the function that i have created. If someone knows how to do it i would appreciate the help. Thanks!
I've tried many things but since im new to sencha im pretty much sure that they were incorrect anyways.
I suggest to study View Models & Data Binding and ViewModel Internals sections of Ext JS documentation. These are among the most powerful features of Ext JS so it good to develop a deep understanding.
For you current question, you need to access the store behind your List view to manage the filters, not the list itself. Once you get the store, you can set / clear the filters with setFilters and clearFilter methods on the store:
store.setFilter([{
property: 'email',
value: '<search term here>',
operator: 'like'
}]);
store.clearFilter();
To easily access the store, define the store in the view model of a view that is above both List and Filters view. This is the important part because this way you can take advantage of inheriting the view model from the container parent. Let's say you have a panel which contains both List and Filters. Define the store in the view model:
stores: {
personnel: {
type: 'personnel'
}
}
Use bind config when assigning the store in your List:
Ext.define('Prj01Filtros.view.main.List', {
...
bind: {
store: '{personnel}'
}
...
});
After all this, you can access the store from the Filters view controller's methods:
onClickFilter: function() {
this.getViewModel().getStore('personnel').setFilters(...);
}
You need the get the value the user entered into the field. You can access it from the controller with querying the textfield component, but you can also do it with the view model.
I'm looking at an older project that is using ExtJS. Admittedly, I'm not too familiar with this framework so I learn as I go and as I am asked to fix things. My issue is that there is a grid and each column uses allowBlank: false. This causes a tooltip box to display with some info about what field(s) need to be populated. This all works great, but I am trying to change that text in that tooltip i.e. "Error", "Benefit Category Name: This field is required", and I can't seem to make this work. How can I target and change that text? I'll include a screenshot of the grid and tooptip that I am talking about for reference. I am also using ExtJS version 6.
Here is a sample of one of the grid columns:
columns: [
{
dataIndex: 'benefit_category_name',
text: 'Benefit Category Name',
flex: 1,
editor: {
xtype: 'combo',
store: new Ext.data.ArrayStore({
fields: [
'benefit_category_id',
'benefit_category_name',
],
data: [],
}),
queryMode: 'local',
valueField: 'benefit_category_name',
displayField: 'benefit_category_name',
emptyText: 'Select one',
listeners: {
select: 'handleComboChange',
},
itemId: 'benefit_category_id',
allowBlank: false,
listeners: {
renderer: function(value, metaData) {
metaData.tdAttr = Ext.String.format('data-qtip="{0}"', value);
return value;
}
}
}
},
{
...
}
]
I tried to use the metaData property I read about in some other posts, but I can't seem to change the tooptip text (Error, Benefit Category Name: This field is required).
Here is a screenshot of the tooltip mentioned. I know this is an older framework, but any tips I could get would be useful. Thanks for your time.
Thats a simple validation example with custom message.
Ext.create({
xtype: 'textfield',
allowBlank:false, // will show required message - remove key to display vtypeText only
validateBlank: true,
vtype: 'alpha', // check for available types or create / extend one
vtypeText: 'Please change to what you want ...',
renderTo: Ext.getBody()
})
Details:
https://docs.sencha.com/extjs/6.5.3/classic/Ext.form.field.VTypes.html
https://fiddle.sencha.com/fiddle/3770
I’m new here in at Stackoverflow and to Sencha ExtJS development. I’m a student from Germany and I’m current trying to get my degree in media computer sciences. As a part of my final assignment I’m currently developing the UI of a webapp for a local company.
While I was trying out the capabilities of the Sencha ExtJS framework I came across some problems, which is why I’m now reaching out to the community for help ;)
My first problem I had, was when I was playing around with the syntax for instancing classes using xtypes and the association of Stores inside the ViewModel:
For the purpose of easier to read and less cluttered code I wanted to give my stores their own xtype so I could instead of declaring all the stores and their configs inside the ViewModels’ stores config wanted to have every store inside their own file and then just create an instance of them later inside the ViewModel. The code I wrote for this looks like this:
ViewModel:
Ext.define('Example.viewmodel.MyViewModel', {
extend: 'Ext.app.ViewModel',
alias: 'viewmodel.myviewmodel',
requires: [
'Example.store.MyStore',
],
stores: {
StoreA: { xtype: 'store_a' },
StoreB: { xtype: 'store_b' },
StoreC: { xtype: 'store_c' }
},
data: {
/* This object holds the arbitrary data that populates the ViewModel and
is then available for binding. */
}
});
StoreA:
Ext.define('Example.store.StoreA', {
extend: 'Ext.data.Store',
xtype: 'store_a',
requires: [
'Example.model.ModelA'
],
storeId: 'StoreA',
autoLoad: false,
model: 'Example.model.ModelA',
listeners: {
load: 'onLoadofStoreA'
}
});
But apparently this isn’t working… My load listener of the store does not seem to fire at the method inside my controller and does not even seem to know about the view that is associated with the ViewModel. What am I doing wrong or is this just not meant to be done like that?
My Second Problem was when I was playing around with some of the UI components. My scenario was like this:
I wanted to have a menu that would slide in, where u could do some inputs that would then load the content for the view.
I found this example for a sliding menu (https://examples.sencha.com/extjs/6.7.0/examples/kitchensink/?modern#menus) and built this:
Inside my ViewController:
getMenuCfg: function (side) {
var cfg = {
side: side,
controller: example_controller',
id: 'topMenu',
items: [
{
xtype: 'container',
layout: 'hbox',
width: '100%',
items: [
{
xtype: 'fieldset',
reference: 'fldSet',
id: 'fldSet',
layout: 'vbox',
width: '50%',
defaults: {
labelTextAlign: 'left'
},
items: [
{
autoSelect: false,
xtype: 'selectfield',
label: 'Selectfield',
reference: 'sfExample',
id: 'sfExample',
listeners: {
change: 'onSFChange'
}
},
{
xtype: 'container',
layout: {
type: 'hbox',
align: 'end',
pack: 'center'
},
items: [{
xtype: 'textfield',
reference: 'ressource',
id: 'ressource',
flex: 1,
textAlign: 'left',
margin: '0 10 0 0',
label: 'Ressource',
labelAlign: 'top',
labelTextAlign: 'left',
editable: false,
readOnly: true
},
{
xtype: 'button',
shadow: 'true',
ui: 'action round',
height: '50%',
iconCls: 'x-fa fa-arrow-right',
handler: 'openDialog'
}
]
},
{
xtype: 'textfield',
reference: 'tfExample',
id: 'tfExample',
label: 'Textfield',
editable: false,
readOnly: true
}
]
},
}]
}];
The problem I come across now is, that I would no longer be able to easily get the references of components inside the menu (input fields) with this.lookupReference() as if they were just part of the view. In fact to find a workaround I had to trace a way back to the components using a debugger.
For example if another method inside my controller wanted to use a field inside this menu, instead of simply just doing this.lookupReference(‘sfExample’) I now had to do something like this:
var me = this,
vm = me.getViewModel(),
menuItems = me.topMenu.getActiveItem().getItems(),
fieldset = menuItems.getByKey('fldSet'),
selectfieldRessArt = fieldsetLeft.getItems().getByKey('sfExample');
I’m pretty sure that I am missing out on something important here and there has to be a way to do this easier. I’m really looking forward to your answers, thank you in advance ;)
use xtype only for components. if you need to define an type/alias for store, use alias config property instead and especify the alias category "store.".
Defining a store with an alias
Ext.define('Example.store.StoreA', {
extend: 'Ext.data.Store',
//use store. to category as a store
alias: 'store.store_a',
requires: [
'Example.model.ModelA'
],
storeId: 'StoreA',
autoLoad: false,
model: 'Example.model.ModelA',
listeners: {
load: 'onLoadofStoreA'
}
});
Instantianting your store by type
Ext.define('Example.viewmodel.MyViewModel', {
extend: 'Ext.app.ViewModel',
alias: 'viewmodel.myviewmodel',
requires: [
'Example.store.MyStore',
],
stores: {
StoreA: { type: 'store_a' },
StoreB: { type: 'store_b' },
StoreC: { type: 'store_c' }
},
data: {
/* This object holds the arbitrary data that populates the ViewModel and
is then available for binding. */
}
});
I Hope it can help you
I have generated an application with sencha cmd (it runs through bootstrap file), it has structure like:
app
---\model\
----------ComboBox.js
---\store\
----------ComboBox.js
---\view\
----------My.js
----------MyController.js
----------MyModel.js
My.js is a panel where i try to use xtype: 'combobox' with store: 'MyApp.store.ComboBox'. But it throws: Uncaught TypeError: Cannot read property 'isEmptyStore' of undefined. My store/ComboBox.js:
Ext.define('MyApp.store.ComboBox', {
extend: 'Ext.data.Store',
alias: 'store.combobox',
fields: [
'label', 'code'
],
model: 'combobox',
data: [
{
"label": "RRS",
"code": "643"
},
{
"label": "USA",
"code": "840"
}
]
});
my model/ComboBox.js
Ext.define('MyApp.model.ComboBox', {
extend: 'Ext.data.Model',
alias: 'model.combobox',
fields: ['label', 'code']
});
So It for some reason cannot properly find (load()?) my store class from my view. I tried to use store.combobox, combobox in store config field of the combobox - it doesnt work. I have no idea why, as I am following the "recommended" directory structure. If I put MyApp.store.ComboBox in global stores requires block inside Application.js - it just tries to load localhost/combobox.js (which is NOT_FOUND of course) and I think this is not the way at all.
UPDATE #1
The main question is that I have somth like this in view:
...
items: [
{
xtype: 'combobox',
store: 'MyApp.store.ComboBox',
valueField: 'code',
displayField: 'label',
fieldLabel: 'Type'
},
...
And it doesnt instantiate store object! so the error:
Uncaught TypeError: Cannot read property 'isEmptyStore' of undefined
Any ideas?
UPDATE #2
Finally:
...
items: [
{
xtype: 'combobox',
store: Ext.create('MyApp.store.ComboBox'),
valueField: 'code',
displayField: 'label',
fieldLabel: 'Type'
},
...
Works perfectly, so why do I can not use class name (according to documentation) in store config field?
Sorry if the title isn't the best.
I'm roughing out a test project in Extjs 6. I have a viewmodel class that uses a store called customers:
Ext.define('ChildSessionBinding.view.main.ChildSessionModel',{
extend: 'Ext.app.ViewModel',
alias: 'viewmodel.binding.childsession',
requires:[
'Ext.data.Store',
'ChildSessionBinding.model.Customer'
],
stores:{
customers:{
model: 'ChildSessionBinding.model.Customer',
autoLoad: true,
session: true
}
}
});
The model it requires has hard coded test data in it:
Ext.define('ChildSessionBinding.model.Customer', {
extend: 'Ext.data.Model',
fields: [
{ name: 'name', type: 'auto' },
{ name: 'phone', type: 'auto' }
],
data:[
{name: 'test', phone: '12345'}
]
});
And the view that uses the ViewModel is just a panel that shows a simple grid:
Ext.define('ChildSessionBinding.view.main.ChildSession', {
extend: 'Ext.panel.Panel',
xtype: 'binding-child-session',
title: 'Binding Child Session Demo',
layout: {
type: 'vbox',
align: 'stretch'
},
viewModel: {
type: 'binding.childsession'
},
controller: 'binding.childsession',
session: true,
items:[
{
flex: 1,
xtype: 'grid',
bind: '{customers}',
columns:[
{
dataIndex: 'name',
flex: 1,
text: 'Name'
},
{
dataIndex: 'phone',
flex: 1,
text: 'Phone'
},
{
xtype: 'widgetcolumn',
width: 90,
widget: {
xtype: 'button',
text: 'Edit',
handler: 'onEditCustomerClick'
}
}
]
}
]
});
When I load this in the browser, the grid does not load. I popped open the javascript console and saw that it was trying to make a get request to the server using the model's fully qualified name:
I've compared it to the kitchen sink example I'm trying to duplicate as well as other viewmodel stores that I've created in other projects and I don't see anything that would cause this.
Also, to rule out any project file structure questions, here's the folder/file structure:
EDIT
Here's the stack trace from the javascript console:
Anyone see the problem?
Put the data in your store, not in your model. Model doesn't have a data property.
I haven't used much of Ext 5 or 6 but I think I have seen this error on Ext 4. If a required class is undefined during the time of a class definition Ext will try to load a file with that name at the root of your application. I think that Ext should be throwing an error here by default instead of trying to load a file since I assume that most applications are not set up to handle this.
The fix would be to have ChildSessionBinding.model.Customer defined and executed before you load ChildSessionBinding.view.main.ChildSessionModel or have your application be able to load that file where Ext expects it to be.