Develop Reference

Angular with Kendo, Using Grid Values Asynchronously

Ok I'm pretty sure I know exactly what I need to do here but I'm not sure how to do it. Basically I have a grid that I want to make a key column bind to an array of key/values, which I've done before with kendo (not using Angular) and I know that when I'm creating my key/value array asynchronously then that needs to complete before I can get them show-up with kendo, which I have done using promises before.
So here I have the same issue only angular is also involved. I need to fetch and format an array of data into the format in which a kendo grid column can digest it, so no problem here is my controller code:
var realm = kendo.data.Model.define({
id: 'realmID',
fields: {
realmID: { editable: false, nullable: true }
realmType: { type: 'string', validation: { required: true } }
}
})
var ds1 = kendoHelpers.dataSourceFactory('realms', realm, 'realmID')
var realmType = kendo.data.Model.define({
id: 'realmTypeID',
fields: {
realmTypeID: { editable: false, nullable: true },
name: { type: 'string', validation: { required: true } }
}
})
var ds2 = kendoHelpers.dataSourceFactory('realms/types', realmType, 'realmTypeID')
$scope.mainGridOptions = {
dataSource: ds1,
editable: true,
navigatable: true,
autoBind:false,
toolbar: [
{ name: "create" },
{ name: 'save' },
{ name: 'cancel' }
],
columns: [
{ field: 'realmID', title: 'ID' }
{ field: 'realmTypeID', title: 'Realm Type', editor: realmTypesDDL, values: $scope.realmTypeValues },
{ command: "destroy" }
]
}
$scope.secondGridOptions = {
dataSource: ds2,
editable: true,
navigatable: true,
toolbar: [
{ name: "create" },
{ name: 'save' },
{ name: 'cancel' }
],
columns: [
{ field: 'realmTypeID', title: 'ID' },
{ field: 'name', title: 'Name' }
{ command: "destroy" }
]
}
ds2.fetch(function () {
$scope.realmTypeValues = [{ text: 'Test', value: "24bc2e62-f761-4e70-804c-bc36fdeced3d" }];
//this.data().map(function (v, i) {
// $scope.realmTypeValues.push({ text: v.name, value: v.realmTypeID})
//});
//$scope.mainGridOptions.ds1.read()
});
function realmTypesDDL(container, options) {
$('<input />')
.appendTo(container)
.kendoDropDownList({
dataSource: ds2,
dataTextField: 'name',
dataValueField: 'realmTypeID'
});
}
I made this dataSourceFatory helper method above to return me a basic CRUD kendo dataSource that uses transport and also injects an authorization header which is working fine so don't get hung up on that, ultimately I'm going to be using this data in another grid as well as for reference values for the main grid, but I've hard coded some values that I can use to test with in the ds2.fetch callback.
My HTML is pretty plain:
<div>
<h2>Realms</h2>
<kendo-grid options="mainGridOptions"></kendo-grid>
<h2>Realm Types</h2>
<kendo-grid options="secondGridOptions"></kendo-grid>
</div>
This all works fine and well except I am only seeing the GUID of the realmTypeID in the grid, I click it and the editor is populated correctly so that's good but I want the text value to be displayed instead of the GUID. I'm sure the issue is that the array of values is empty whenever angular is binding to the grid options. My questions are:
How do I either delay this bind operation or manually rebind it after the fetch call?
Is there a better way to handle a situation like this? I try not to expend finite resources for no reason (IE making server calls when unnecessary)
Note: When I move the creation of the text/value array to happen before the grid options, I get the desired behavior I am after
EDIT A work around is to not use the directive to create the grid and instead defer the grid creation until the callback of whatever data your column is dependent on, I was hoping for a more elegant solution but this is better than nothing. So your HTML becomes something like
<h2>Realms</h2>
<div id="realms"></div>
<h2>Realm Types</h2>
<kendo-grid options="secondGridOptions"></kendo-grid>
Then you can create the grid in the fetch callback for example:
ds2.fetch(function () {this.data().map(function (v, i) {
$scope.realmTypeValues.push({ text: v.name, value: v.realmTypeID})
});
$('#realms').kendoGrid($scope.mainGridOptions);
$scope.mainGridOptions.dataSource.fetch()
});
But this doesn't feel very angularish so I'm really hoping for a better solution!

Ok...well I think I hacked this enough and without another suggestion I'm going to go forward with this approach. I'm just going to move the binding logic to the requestEnd event of the second grid so that the values array can be populated right before the binding even. I'm also reworking the values array in this method. It is a bit weird though, I think there is some kendo black magic going on with this array because I can't just set it to a new empty array without it breaking completely...which is why I'm poping everything out prior to repopulating the array. That way when something is deleted or edited in the second grid, the DDL in the first grid is updated in the callback.
function requestEnd(e) {
for (var i = $scope.realmTypeValues.length; i >= 0; i--) $scope.realmTypeValues.pop();
var data;
if (e.type == "read")
data = e.response;
else
data = e.sender.data();
data.map(function (v, i) { $scope.realmTypeValues.push({ text: v.name, value: v.realmTypeID }); });
if ($('#realms').data('kendoGrid') == undefined) {
$('#realms').kendoGrid($scope.mainGridOptions);
}
else
$('#realms').data('kendoGrid').columns[4].values = $scope.realmTypeValues;
}
ds2.bind('requestEnd', requestEnd);
So I'm going to accept my own answer unless anyone has a better approach!

Display Custom Boolean Value in Angular ui-grid

Ok, I'm new to angular and angular ui-grid.
I'm using angularjs(v1.4) with angular-ui-grid(v3.0.7).
I have defined a grid as below
seec.gridOptions = {};
seec.gridOptions.rowEditWaitInterval = -1;
seec.gridOptions.onRegisterApi = function (gridApi) {
$scope.gridApi = gridApi;
gridApi.rowEdit.on.saveRow($scope, $scope.saveRow);
};
seec.gridOptions.columnDefs = [
{name: 'pouch', displayName: 'Pouch', enableCellEdit: false, enableHiding: false, width: 250},
{name: 'content', displayName: 'Content', enableHiding: false, width: 150},
{
name: 'units',
displayName: 'Number of Items',
type: 'number',
enableHiding: false,
width: 150
},
{name: 'active', displayName: 'Status', type: 'boolean', enableHiding: false, width: 150}
];
The controller basically makes a http call and feeds data to the grid.
if (response.status === 200) {
seec.gridOptions.data = angular.copy(seec.data);
}
Currently, the last item in the grid is being displayed as either 'true' or 'false' based on the boolean field value., and when I double click on the field a checkbox appears.
So, I need to display true as 'active' and false as 'inactive'.
Is there any way of doing this with angular ui-grid?

There certainly is! One approach could be to use a cellTemplate and map your rowvalues to something different.
I created a Plunkr showcasing a possible setup.
There are two steps to take. First add a cellTemplate to your column:
cellTemplate: "<div ng-bind='grid.appScope.mapValue(row)'></div>"
Note: Instead of ng-bind you could also use "<div>{{grid.appScope.mapValue(row)}}</div>", if you are more familiar with that.
Second step is to define your mapping function, for example:
appScopeProvider: {
mapValue: function(row) {
// console.log(row);
return row.entity.active ? 'active' : 'inactive';
},
}

#CMR thanks for including the Plunkr. As I was looking at it I checked, and in this case it seems overkill to have the mapValue function.
This worked for me:
cellTemplate: "<div class='ui-grid-cell-contents'>{{row.entity.active ? 'active' : 'inactive'}}</div>"
(I added the class in there to match the other cells). I will say that this still smells a little hacky to me.
This question leads to using a function as the field itself: In ui-grid, I want to use a function for the colDef's field property. How can I pass in another function as a parameter to it?
I'd still like to see an answer with the logic directly in the columnDefs.

You can use angular filter specifying in your columnDef for a column cellFilters : 'yourfiltername:args'.
args can be a variable or a value, in that case pay attention to use right quoting. if args is a string cellFilters : 'yourfiltername:"active"'
Your filter can be directly a function or a filter name. Here a plunkr

AngularJS Nested Object Array Pathway

I have a factory, which goes into a controller, and I am trying to get data from that display on an HTML page. I am having trouble specifying an Object's pathway however.
My Factory:
app.factory('APIMethodService', function() {
var Head = "api.example.com";
return {
apis:
[{
accounts: [
{
v1: [
{
uri: Head+"/v1/accounts/",
item1: "AccountNumber",
item2: "MoneyInAccount"
}],
v2: [
{
uri: Head+"/v2/accounts/",
item1: "AccountNumber",
item2: "MoneyInAccount"
}]
}
],
customers: [
{
v1: [
{
uri: Head+"/v1/customers/",
item1: "CustomerName",
item2: "CustomerID",
item3: "CustomerEmail"
}]
}
]
}]
};
});
My Controller:
app.controller('APIController', function($scope, APIMethodService) {
$scope.title = "API";
$scope.apiList = APIMethodService;
$scope.accountList = $scope.apiList.accounts.v1;
$scope.accountList2 = $scope.apiList[0][0];
});
My HTML
<div ng-controller="APIController">
<div id="api" class="row">
<div class="col-xs-12">
<div class="row" style="font-size:20px">
{{title}} Page!
<table class="table table-striped">
<tr ng-repeat="api in apiList | orderBy:'uri' | filter:search">
<td>{{api.uri}}</td>
<td>{{api.item1}}</td>
<td>{{api.item2}}</td>
</tr>
</table>
</div>
</div>
</div>
</div>
The errors I get are in regards to the Controller trying to parse out the individual objects I wish to grab, like accounts or customers, and then any version v#, they may have.
So it will say something such as
TypeError: Cannot read property 'v1' of undefined
I just need some help specifying the proper pathways into my factory service.

You have a few problems. First, you are referring to the object returned from the factory incorrectly. APIMethodService is the factory that you're injecting, so you need to first reference the object that that factory is returning like this:
APIMethodService.apis
This will give you your entire JSON object.
From there, the rest of your object is made up of arrays of objects, so referring to 'v1' won't do you any good. You need to specify an index instead. If you want v1, you'll need:
APIMethodService.apis[0].accounts[0].v1
This will give you the v1 array, which again is an array of objects.
Customers would be:
APIMethodService.apis[0].customers[0].v1

The first problem you have is that the factory returns an object with a single property called apis. So basically this $scope.apiList.accounts.v1 should be $scope.apiList.apis.accounts.v1. Bu that's not all as this won't either work since dotting(.) into apis is an array you'd have to use the index. In this case it would be $scope.apiList.apis[0] and then you could .accounts[0].v1 which is also an array containing a single object.
Now if you can I would suggest to you that you'd change how you represent this data structure.
This is how you could do it.
app.factory('APIMethodService', function() {
var Head = "api.example.com";
return {
accounts: {
v1: {
uri: Head+"/v1/accounts/",
items: ["AccountNumber","MoneyInAccount"]
},
v2: {
... // skipped for brevity
}
},
customer: {
... // code skipped for brevity
}
};
});
And then it's just a matter of dotting into your APIMethodService-object like APIMethodService.accounts.v1.items[0] if you want the AccountNumber method name.
Constructing your url could then be done like this.
var baseUrl = APIMethodService.accounts.v1.uri; // 'api.example.com'
var url = baseUrl + APIMethodService.accounts.v1.items[0]; // 'AccountNumber'
// url = "api.example.com/v1/accounts/AccountNumber"
Again, this is one way you could do it but this can be further enhanced upon. The examples I provided are simply for demo purposes and this is not in any way the only way to do it.
Expanding upon recieved comments/questions your service (and data representation) could now look like this.
app.factory('APIMethodService', function() {
var Head = "api.example.com";
return {
accounts: {
v1: {
uri: Head+"/v1/accounts/",
items: [
{
name:'AccountNumber',
description:'Show the account number'
},
{
name:'AccountOwner',
description:'Show information about the owner of the account'
},
{
name:'MoneyInAccount',
description:'Show money in the Account'
}
]
},
v2: {
... // skipped for brevity
}
},
customer: {
... // code skipped for brevity
}
};
});
// Get descriptions
var accountNumberDescription = APIMethodService.accounts.v1.items[0].description; // 'Show the account number'
var accountOwnerDescription = APIMethodService.accounts.v1.items[1].description; // 'Show information about the owner of the account'
var moneyInAccountDescription = APIMethodService.accounts.v1.items[2].description; // 'Show money in the Account'
By using objects with properties like this it's alot easier to understand what you are trying to do. With arrays with indexes you'd have to know or take a look at the source to see what's going on. Here, someone viewing your code they can instantly understand that it is the description you are getting.

How to have custom formatter built-in function to call a non-jqGrid seperate function?

I'm wondering how to have jqGrid custom formatter to call a seperate function, "test1"? I get an undefined error on the "test1" function.
Script #1...
//colModel json objects...
{ name: 'Vin', index: 'Vin' },
{ name: 'Links', index: 'Links', formatter: jqgridCellFormatterLink }
//jqGrid formatter function...
function jqgridCellFormatterLink(cellValue, options, rowObject) {
return "<span onclick='test1(\"" + rowObject[0] + "\");'>Test</span>";
}
//non-jqGrid function
function test1(parmVin) {
alert(parmVin);
}
Thanks...
//Script #2...
//colModel json objects...
{ name: 'Vin', index: 'Vin' },
{ name: 'Links', index: 'Links', formatter: function(cellValue,options,rowObject) { return "<span>Test</span>";} }
beforeSelectedRow: function(rowid, e) {
if (this.p.colModel[$.jgrid.getCellIndex($(e.target).closest("td")[0])].name === 'Links')
{
alert($('#blah').getCell(rowid, 0)); //Can be 0 or 'Vin'...
}
}

I recommend you to use approach described in the answer and in this one. You don't need to bind onclick to some global method. Instead of that it's more effective to use beforeSelectRow or onCellSelect callback which will be called inside of one existing click event handle.
By the way, the formatter which you posted could don't work because the format of rowObject depend on many things: how you fill the grid, which datatype you use ("local", "json" or "xml" can produce different format of rowObject), whether you use repeatitems: true or some other settings of jsonReader, whether you use loadonce or not and so on.

ExtJS - Creating hyperlinks with a function

I'm trying to build an edit column, but my routine isn't quite right for some reason. My value of "store" is not returning anything like I thought it would.
Any thoughts?
function editLinkRenderer(value, metadata, record, rowIndex, colIndex, store) {
if (store == V2020.ServiceStore)
return 'Edit';
else if (store == V2020.PriceStore)
return 'Edit';
else if (store == V2020.PromoStore)
return 'Edit';
return "Edit";
}
I'm using it in my gridpanel like so:
{ header: "Edit", width: 60, dataIndex: 'serviceID', sortable: false, renderer: editLinkRenderer },

You might consider using an ActionColumn. That way you can do this:
var items = [ ... ]; // existing items
if (store.constructEditColumn) {
items.push(store.constructEditColumn());
}
Where your constructEditColumn might look like this:
...
constructEditColumn: function() {
return {
xtype: 'actioncolumn',
items: {
text: 'Edit',
handler: function() {
// do stuff
},
scope: this
}
}
},
...
Barring that, I'd be suspicious of doing equality on the stores. Are the two params before store ints? Can you breakpoint and take a look at whether the record.store property is what you expect? Old version of Ext, perhaps, with a different signature to the renderer?

I appreciate you taking a look, but I figured out the issue.
I had two V2020.ServiceStore defined by mistake and the latter one was mucking everything up.