Link function of Directive is not being called - angularjs

I have a scenario where I need to show a pie-chart in a popup modal (used ui-bootstrap modal). I used c3.js for my pie-chart requirement (inside a directive).
The pie-chart is not loading inside the pop up. But to my surprise when I tried to debug the issue when I opened the console it is loading. When I re-size the window it is loading.
How can i fix this issue?
'use strict';
angular.module('App')
.directive('pieChartDirective', function() {
return {
restrict: 'A',
scope: {
chartdata: '=',
},
link: function(scope, elem, attrs) {
var chart = c3.generate({
bindto: '#chart',
data: {
columns: [
['Javascript', scope.chartdata.Javascript],
['HTML', scope.chartdata.HTML],
['Css', scope.chartdata.Css],
['Angular', scope.chartdata.Angular],
['Bootstrap', scope.chartdata.Bootstrap],
['Jquery', scope.chartdata.Jquery],
['Communication', scope.chartdata.Communication]
],
type: 'pie',
},
legend: {
show: false
},
tooltip: {
format: {
value: function(value, ratio, id, index) {
return value;
}
}
}
});
}
};
});
Html:
<div pie-chart-directive chartdata="oChartData">
<div id="chart"></div>
</div>

Are you shure, that you include your directive properly in your html code as
<div pie-chart-directive></div>
Maybe you have to change your restriction to 'E' to use your directive as a tag elment
<pie-chart-directive chartdata="myData"></pie-chart-directive>
The reason could be, that at the moment you try to generate the chart, your '#chart' div isn't yet present in the dom tree. Therefore you have to resize to trigger a new draw. Try to wait until the dom is loaded
$('#chart').ready(function() {
var chart = c3.generate({
bindto: '#chart',
data: {
columns: [
['Javascript', scope.chartdata.Javascript],
['HTML', scope.chartdata.HTML],
['Css', scope.chartdata.Css],
['Angular', scope.chartdata.Angular],
['Bootstrap', scope.chartdata.Bootstrap],
['Jquery', scope.chartdata.Jquery],
['Communication', scope.chartdata.Communication]
],
type: 'pie',
},
legend: {
show: false
},
tooltip: {
format: {
value: function(value, ratio, id, index) {
return value;
}
}
}
});
});

I got it by giving size property:
link: function(scope, elem, attrs) {
var chart = c3.generate({
bindto: '#chart',
size: {
width:400,
height:350
},
data: {
columns: [
['Javascript', scope.chartdata.Javascript],
['HTML', scope.chartdata.HTML],
['Css', scope.chartdata.Css],
['Angular', scope.chartdata.Angular],
['Bootstrap', scope.chartdata.Bootstrap],
['Jquery', scope.chartdata.Jquery],
['Communication', scope.chartdata.Communication]
],
type: 'pie',
},
legend: {
show: false
},
tooltip: {
format: {
value: function(value, ratio, id, index) {
return value;
}
}
}
});
}

Related

Highchart not rendering inside a ajax function angularjs

Highchart is not rendering data from the ajax call. If i used outside $http function with static data the highchart is rendering. The high chart is not triggering.
html:
<hc-pie-chart title="Browser usage" data="pieData">Placeholder for pie chart</hc-pie-chart>
controller:
$scope.homeallpcn = function(){
var url = "homechartall";
var data = "";
$http.get(url).then( function(response) {
$scope.pieData = [{
name: "Cancelled",
y: response.c
}, {
name: "Closed",
y: response.cl,
sliced: true,
selected: true
}, {
name: "Open",
y: response.o
}, {
name: "Rejected",
y: response.r
}]
});
}
$scope.homeallpcn();
service:
mainApp.directive('hcPieChart', function () {
return {
restrict: 'E',
template: '<div></div>',
scope: {
title: '#',
data: '='
},
link: function (scope, element) {
Highcharts.chart(element[0], {
chart: {
type: 'pie'
},
title: {
text: scope.title
},
plotOptions: {
pie: {
allowPointSelect: true,
cursor: 'pointer',
dataLabels: {
enabled: true,
format: '<b>{point.name}</b>: {point.percentage:.1f} %'
}
}
},
series: [{
data: scope.data
}]
});
}
};
})
Please give me suggestion.
Some suggestion :
1 - Do a console.log(response) after the call really show the data ?
2 - Remember pie can't works with string data so response.c, response.o and response.r must be integer or float.

Two way data binding in Angular JS for graphs implemented using HighCharts

I'm trying to write a directive for HighCharts in AngularJS which supports two way data binding. On click of a function in the HTML, am trying to load the graph with new data.
Please check the below snipet.
HTML:
<hc-area-chart data="areaData"></hc-area-chart>
<button ng-click="updateGraph()">Update function</button>
Controller:
angular.module('myModule', [])
.directive('hcAreaChart', function () {
return {
restrict: 'E',
template: '<div></div>',
scope: {
title: '#',
data: '='
},
link: function (scope, element) {
Highcharts.chart(element[0], {
chart: {
type: 'area'
},
title: {
text: null
},
xAxis: {
categories: ['Mon', 'Tue', 'Wed', 'Thur', 'Fri', 'Sat', 'Sun']
},
plotOptions: {
pointStart: 4,
},
series: [{
showInLegend: false,
data: scope.data
}]
});
}
};
})
.controller('myController', function ($scope) {
$scope.areaData = [0,6,5,7,5,4.5,10];
$scope.updateGraphData = function () {
console.log("inside update function");
$scope.areaData = [10,20,30,40,50,60,70];
}
});
I think you should try something like this
link: function (scope, element) {
scope.$watch('data', function(){
Highcharts.chart(element[0], {
chart: {
type: 'area'
},
title: {
text: null
},
xAxis: {
categories: ['Mon', 'Tue', 'Wed', 'Thur', 'Fri', 'Sat', 'Sun']
},
plotOptions: {
pointStart: 4,
},
series: [{
showInLegend: false,
data: scope.data
}]
});
})
}

Angular lazy tree

I'm studying angular and trying to write treeview with dynamic load. It has some initial pre-loaded nodes, but many of them have to be loaded by demand.
I write initial tree view here jsfiddle but cannot understand how to implement lazy load.
when I click NodeLazy I want to update treeService.Nodes and this update have to refresh view
when I click any Node I want select this node by bold font and be able get selected from treeService
Sure, I could use one of existing angular tree, but I want to understand how to do this.
var app = angular.module('demo', []);
app.directive("treeView", function() {
return {
restrict: "E",
replace: true,
scope: {
t: "=src"
},
template: "<ul class='ul-node'><tree-branch ng-repeat='c in t.children' src='c'></tree-branch></ul>"
};
});
app.directive("treeBranch", function($compile) {
return {
restrict: "E",
replace: true,
scope: {
b: "=src"
},
template: "<li class='{{b.class_li}}'>{{b.name}}</li>",
controller: function($scope) {
var has_children = angular.isArray($scope.b.children);
$scope.b.class_li = has_children ? "li-node" : "li-leaf";
},
link: function(scope, element, attrs) {
var has_children = angular.isArray(scope.b.children);
if (has_children) {
element.append('<tree-view src="b"></tree-view>');
$compile(element.contents())(scope);
}
element.on("click", function(event) {
console.log("click|" + scope.b.name);
event.stopPropagation();
if (has_children) {
element.toggleClass("ul-collapsed");
}
});
}
};
});
app.service("treeService", function() {
var nodes = {
children: [
{ name: "Node_1",
children: [
{ name: "Node_1.1",
children: [{ name: "Leaf_1" }, { name: "Leaf_2" }] },
{ name: "NodeLazy_1.2", }] },
{ name: "NodeLazy_2", }]
};
return {
Nodes : nodes
};
});
app.controller("ctrl", function($scope, treeService) {
$scope.nodes = treeService.Nodes;
});

Bind array to highcharts data part using Angular Directives

I need to bind an array of data to "data" part of highcharts which is embedded in
Angular directives but I don't know how exactly to do that.
This is my controller part which fetches data from repository:
vm.data = [];
function getVmAll(forceRefresh) {
return datacontext.esxservers.getAllWithoutPaging(forceRefresh, vm.vmAllSearchTemp)
.then(function (data) {
vm.data= data;
});
return data;
}
);
}
and here is the template which I use the controller in it:
<section class="mainbar" data-ng-controller="mbVirtualizationOverviewCtrl as vm">
<mb-virtualization-overview-donut-chart value="vm.data"></mb-virtualization-overview-donut-chart>
</section>
and the last but not least one is my directive which I use highcharts settings:
'use strict';
angular.module('app').directive('mbVirtualizationOverviewDonutChart', [
function () {
return {
restrict: "E",
templateUrl: '/app/directives/virtualizationOverview/mbVirtualizationOverviewDonutChartTemplate.html',
scope: {
value : "="
},
link: function (scope, el, attrs) {
scope.chart = Highcharts.chart(el[0], {
chart: {
type: 'pie',
},
title: {
text: scope.innerTitle
},
plotOptions: {
pie: {
allowPointSelect: true,
cursor: 'pointer',
dataLabels: {
enabled: false
},
showInLegend: true
}
},
series: [{
data: undefined
}]
});
var init = true;
scope.$watch(
function () {
var chart = scope.chart;
if (init && scope.value.length > 0) {
init = false;
scope.value.forEach(function (item, index) {
chart.series[0].data.push(item);
});
}
});
}
};
}
]);

how to make custom directive or pass variable in directive in angular js

I am trying to make bar chart in angular .I am able to make in jquery (using highchart.js file).This is link which I am able to make in jquery code
http://plnkr.co/edit/SD1iSTBk8o1xi3unxKeE?p=preview .I am getting the correct output.But the same thing I need to show using angularjs using directive .So I try to make directive .My issue is how I will pass my parameter in directive
here is my angular code.
http://plnkr.co/edit/LwonlkbCy3asHXyToVMz?p=catalogue
// Code goes here
angular.module('contactsApp', ['ionic'])
.controller('MainCtrl', function($scope) {
}).directive('chartTest',function(){
return {
restrict: 'E',
scope:{
},
link :function(scope, element, attrs){
element.highcharts({
chart: {
type: 'bar'
},
title: {
text: chart_title
},
xAxis: {
categories: xAxisarry
},
yAxis: {
title: {
text: 'Fruit eaten'
}
},
series: [{
name: names[0],
data: janeData
}, {
name: names[1],
data: joneData
}]
});
}
}
});
I want it look like same as in jquery ? can we pass variable in directive using scope?
You need to pass the parameters from the isolated scope of your directive, and then inside your directive you need to use $ on directive element to make highcharts method available.
Markup
<chart-test chart-title="chartTitle" x-axisarry="xAxisarry"
y-axis="yAxis" json-data="janeData" names="names"></chart-test>
Controller
.controller('MainCtrl', function($scope) {
$scope.chartTitle = "";
$scope.xAxisarry = ['Apples', 'Bananas', 'Oranges'];
$scope.yAxis = 'Fruit eaten';
$scope.data = {
jane: [1, 0, 4],
jone: [5, 7, 3]
};
$scope.names = ["jane", "jone"];
})
Directive
.directive('chartTest', function() {
return {
restrict: 'E',
scope: {
chartTitle: '=',
xAxisarry: '=',
yAxis: '=',
jsonData: '=',
names: '='
},
link: function(scope, element, attrs) {
$(element).highcharts({
chart: {
type: 'bar'
},
title: {
text: scope.chartTitle
},
xAxis: {
categories: scope.xAxisarry
},
yAxis: {
title: {text: 'Fruit eaten'}
},
series: [{
name: scope.names[0],
data: scope.jsonData['jane']
}, {
name: scope.names[1],
data: scope.jsonData['jone']
}]
});
}
}
});
Working Plunkr

Resources