Meteor Spacebar - javascript

I'm having problem accessing the index returned by Collection.find(). In HTML, I'm creating a carousel and I want to make the images dynamic. Before making it dynamic, here's what it looks like:
<div class="carousel-inner">
<div class="item active">
<img src="img/homepage/sliders/1.jpg">
</div>
<div class="item">
<img src="img/homepage/sliders/2.jpg">
</div>
</div>
After implementation, here's the new code:
<div class="carousel-inner">
{{#each sliders}}
<div class="item active">
<img src="{{this.url}}">
</div>
{{/each}}
</div>
Here's what my JS looks like:
Template.homepageSlider.helpers({
sliders: function() {
return HomepageSliders.find({}, {fields: {url:1}}).fetch();
}
});
This sort of works fine, but I wanted to add the class 'active' only on first index. How should I do this?
Thanks a lot!


Something like this should work.
JS:
Template.homepageSlider.helpers({
sliders: function() {
return _.map(HomepageSliders.find({}, {fields: {url:1}}).fetch(),
function(val, index) {
return {value: val,
class: (index == 0 ? "item active" : "item")}
});
}
});
HTML:
<div class="carousel-inner">
{{#each sliders}}
<div class="{{this.class}}">
<img src="{{this.value.url}}">
</div>
{{/each}}
</div>

Related

angular2 bootstrap dynamic carousel

I have a dynamic images coming from a json and doing *ngFor to loop through the objs and putting it in a carousel using bootstrap carousel, but I want to put a readmore link within the *ngFor so each item will have a read more.
I can't figure out how to do when a user click "readmore" it will scroll to its relative item showing about the image if that makes sense.
<div class="col-sm-4" *ngFor="let journey of Journey">
<div class="journey_block">
<div class="icon-workflow">
<div class="view view-fourth">
<img src="{{ journey.imageName }}" alt="">
<div class="mask">
Read More
</div>
</div>
<h4 class="journey_title">
<a [href]="journey.journey_url" *ngIf="journey.journey_url != 'javascript:;' " class="float-shadow">
{{journey.title}}
</a>
</h4>
</div>
</div>
My attempt is I thought I would then need to do for loop, I have 5 items in total in the json data.
getImg() {
this.http.get('./journey.json')
.map((res:Response) => res.json())
.subscribe(data => {
if(data) {
var jsonObj = JSON.parse(JSON.stringify(data));
this.Journey = jsonObj.journey;
for (var i = 0; i < this.Journey.length; i++) {
var element = this.Journey[i];
this.objCount = element;
console.log(this.objCount);
}
}
});
};
View full html structure of the carousel
Carousel structure

You need to have the index inside of the loop for making the data-slide-to attribute unique. This could be done by the predefined Angular2 value index.
Example
<!-- Angular 2.0 -->
<ul>
<li *ngFor="let item of items; let i = index">
{{i}} {{item}}
</li>
</ul>
In your code:
<div class="col-sm-4" *ngFor="let journey of Journey; let i = index">
<div class="journey_block">
<div class="icon-workflow">
<div class="view view-fourth">
<img src="{{ journey.imageName }}" alt="">
<div class="mask">
Read More
</div>
</div>
<h4 class="journey_title">
<a [href]="journey.journey_url" *ngIf="journey.journey_url != 'javascript:;' " class="float-shadow">
{{journey.title}}
</a>
</h4>
</div>
</div>

Knockout.js : ObservableArray with ObservableArrays inside?

I'm using this plugin called Dragula which needs an ObservableArray as a source for the data..
HTML/Knockout-bindings
<div class="widget-container">
<div class="widget-content visible" id="team-setup">
<div class="header">
<p>Lagoppsett</p>
<p></p>
</div>
<div class="col-sm-12">
<div class="row">
<div class="widget-container">
<div class="col-xs-6 widget-content visible">
<div class="header">
<p>Tilgjengelige spillere</p>
<p></p>
</div>
<div class="player-card-container-mini" data-bind="dragula: { data: availablePlayers, group: 'playerz' } ">
<div class="player-card-mini">
<div class="player-card-left">
<div class="player-avatar" style="margin-left: 85%;">
<img src="Content/Images/player-female.png" id="imgAvatar" runat="server" />
<div class="player-shirt-no" data-bind="text: ShirtNo"></div>
</div>
</div>
<div class="player-card-subtext">
<div class="player-text">
<div class="player-card-header-small" data-bind="text: PlayerName"></div>
</div>
</div>
</div>
</div>
</div>
</div>
<div class="col-xs-6 widget-content visible">
<div class="header">
<p>Lag</p>
<p></p>
</div>
<div data-bind="foreach: teamsetup">
<div data-bind="foreach: SubTeams">
<h1 data-bind="text: TeamSubName"></h1>
<div class="player-card-container-mini" data-bind="dragula: { data: Players, group: 'playerz' } " style="border: 1px solid red; min-height:200px">
<div class="player-card-mini">
<div class="player-card-left">
<div class="player-avatar" style="margin-left: 85%;">
<img src="Content/Images/player-female.png" id="img1" runat="server" />
<div class="player-shirt-no" data-bind="text: ShirtNo"></div>
</div>
</div>
<div class="player-card-subtext">
<div class="player-text">
<div class="player-card-header-small" data-bind="text: PlayerName"></div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
<div style="clear:both"> </div>
</div>
</div>
Knockout code :
var TeamSetupViewModel = function () {
var self = this;
self.teamsetup = ko.observableArray();
self.availablePlayers = ko.observableArray();
self.testPlayers = ko.observableArray();
}
var model = new TeamSetupViewModel();
ko.applyBindings(model, document.getElementById("team-setup"));
var uri = 'api/MainPage/GetTeamSetup/' + getQueryVariable("teamId");
$.get(uri,
function (data) {
model.teamsetup(data);
model.availablePlayers(data.AvailablePlayers);
model.testPlayers(data.AvailablePlayers);
console.log(data);
}, 'json');
});
The problem is... that i'm having a ObservableArray at the top node, and i do need ObservableArrays further down in the hierarchy.
model.availablePlayers works fine, but when accessing the other players in the html/ko foreach loops through teamsetup -> SubTeams -> Players it doesn't work due to Players isn't an ObservableArray. (There might be everyting from 1 to 7 SubTeams with players).
So how can i make the Players in each SubTeams an ObservableArray ?
See the image for the datastructure :

You could use Mapping plugin, but if players is the only thing you need, you can do it manually:
Simplify your view model:
var TeamSetupViewModel = function () {
var self = this;
self.availablePlayers = ko.observableArray();
self.subTeams = ko.observableArray();
}
After you get the data from the server, populate the view model converting the array of players on every team to an observable array of players:
$.get(uri,
function (data) {
model.availablePlayers(data.AvailablePlayers);
model.subTeams(data.SubTeams.map(function(t) { t.Players = ko.observableArray(t.Players); return t; }));
}, 'json');
});
Finally, remove the following line in your template (with its closing tag) - nothing to iterate over anymore:
<div data-bind="foreach: teamsetup">
... and update the name of the property in the next line, so it is camel case like in the VM:
<div data-bind="foreach: subTeams">

ReactJs Isotope

Trying to develop a reactjs Isotope component. I've created the core component and been following the masonary link
http://developers.redhat.com/blog/2016/01/07/react-js-with-isotope-and-flux/
I'm getting the error "Unknown DOM property class. Did you mean className?"
//lastet jsfiddle
https://jsfiddle.net/7xzd92s5/54/
var Grid = React.createClass({
getInitialState: function(){
var $container = $('#Isotope2'),
$checkboxes = $('#filters input');
$container.isotope({
itemSelector: '.item'
});
// get Isotope instance
var isotope = $container.data('isotope');
// add even classes to every other visible item, in current order
function addEvenClasses() {
isotope.$filteredAtoms.each( function( i, elem ) {
$(elem)[ ( i % 2 ? 'addClass' : 'removeClass' ) ]('even')
});
}
$checkboxes.change(function(){
var filters = [];
// get checked checkboxes values
$checkboxes.filter(':checked').each(function(){
filters.push( this.value );
});
// ['.red', '.blue'] -> '.red, .blue'
filters = filters.join(', ');
$container.isotope({ filter: filters });
addEvenClasses();
});
$('#shuffle').click(function(){
$container.isotope('shuffle');
addEvenClasses();
});
return null;
},
render: function() {
return ( < div className = "grid" >
<div class="item red"></div>
<div class="item blue"></div>
<div class="item green"></div>
<div class="item yellow"></div>
<div class="item red"></div>
<div class="item blue"></div>
<div class="item green"></div>
<div class="item yellow"></div>
<div class="item red"></div>
<div class="item blue"></div>
<div class="item green"></div>
<div class="item yellow"></div>
<div class="item red"></div>
<div class="item blue"></div>
<div class="item green"></div>
<div class="item yellow"></div>
<div class="item red"></div>
<div class="item blue"></div>
<div class="item green"></div>
<div class="item yellow"></div>
< /div>
);
}
});
ReactDOM.render( < Grid name = "Isotope2" / > , document.getElementById('Isotope2'));

JSX is not exactly the same as HTML. There are some key differences.
In this case, the error message is telling you what's wrong. You need to replace class, which is a reserved JS keyword, with className:
render: function() {
return (
<div className="grid">
<div className="item red"></div>
<div className="item blue"></div>
...etc
</div>
);
}

JSX is alittle bit different than the HTML.
There are few differences that is listed in the DOM differences in React.js.
DOM class attribute is replaced in React with classNamesince class is a JavaScript reserved word.
Since class and for are reserved words in JavaScript, the JSX elements for built-in DOM nodes should use the attribute names className and htmlFor respectively, (eg. ). Custom elements should use class and for directly (eg. ).

jQuery lightGallery dynamic - open gallery to correct image

Using the jQuery lightGallery plugin: http://sachinchoolur.github.io/lightGallery/
So I have the following code:
JSON (array):
var gallery_json = '[{"src":"/assets/Images/Gallery-Images/img-1.jpg","thumb":"/assets/Images/Gallery-Images/img-2.jpg"},{"src":"/assets/Images/Gallery-Images/img-3.jpg","thumb":"/assets/Images/Gallery-Images/img-4.jpg"},{"src":"/assets/Images/Gallery-Images/img-5.jpg","thumb":"/assets/Images/Gallery-Images/img-wool-2015-hero-crop-sheep-river.jpg"},{"src":"/assets/Images/Gallery-Images/img-6.jpg","thumb":"/assets/Images/Gallery-Images/img-7.jpg"},{"src":"/assets/Images/Gallery-Images/img-8.jpg","thumb":"/assets/Images/Gallery-Images/img-9.jpg"}]';
JS:
$(document).ready(function () {
var $gallery = $('[data-hook="gallery"]');
if ($gallery && typeof gallery_json !== 'undefined') {
$gallery.on('click', 'img', function () {
$gallery.lightGallery({
dynamic: true,
dynamicEl: JSON.parse(gallery_json)
});
$gallery.data('lightGallery').slide($(this).parent().index());
});
}
});
MarkUp:
<div class="row" data-hook="gallery">
<div class="col-sm-3">
<img src="/assets/Images/Gallery-Images/img-1.jpg" class="img-responsive">
</div>
<div class="col-sm-3">
<img src="/assets/Images/Gallery-Images/img-2.jpg" class="img-responsive">
</div>
<div class="col-sm-3">
<img src="/assets/Images/Gallery-Images/img-3.jpg" class="img-responsive">
</div>
<div class="col-sm-3">
<img src="/assets/Images/Gallery-Images/img-4.jpg" class="img-responsive">
</div>
</div>
So basically what I am after is whichever image in the [data-hook="gallery"] is selected the dynamic light gallery will load up showing this image as the index, bear in mind my JS skills are really limited so please walk my through any solutions.

angularJS Custom directive functionality works using ng-click but not using ng-mouseOver

Requirement goes like this :- I have left navigation panel which has to be in sync with the items added in the main active view by the user and has to display in tree structure. Basic idea is to provide context aware sub-view that change based on active view.
Custom directive used to display tree structure: https://github.com/nickperkinslondon/angular-bootstrap-nav-tree/blob/master/src/abn_tree_directive.js
my HTML code: (using ng-click)
<div class="add-data-request-panel" style="min-height:1071px;"
ng-click="expandPanel()">
<ul>
<li class="icon-drd icon-drd-diactive" ng-if="panelCollapse" ></li>
<li class="icon-pie-chart icon-pie-active" ng-if="panelCollapse"></li>
<li class="icon-publish-req" ng-if="panelCollapse"></li>
<li class="icon-view-changes" ng-if="panelCollapse"></li>
</ul>
</div>
<div class="data-slider-panel" style="min-height:1071px;display" ng-if="panelExpand">
<div class="data-slider-row mtop" ng-click="collapsePanel()">
<div class="slider-row-left">
<span class="first-char" >S</span>
<span class="second-char">ection</span>
</div>
<div class="slider-row-right">
<div class="icon-drd icon-drd-diactive">
</div>
</div>
</div>
<div class="data-slider-row">
<div class="slider-row-left">
Section2
<div class="sub-slider-row-left">
<abn-tree tree-data="mainArrayObj"></abn-tree> // passing data to tree directive
</div>
</div>
<div class="slider-row-right">
<div class="icon-pie-chart icon-pie-active">
</div>
</div>
</div>
<div class="data-slider-row" ng-click="collapsePanel()">
<div class="slider-row-left">
Section3
</div>
<div class="slider-row-right">
<div class="icon-publish-req">
</div>
</div>
</div>
<div class="data-slider-row" ng-click="collapsePanel()">
<div class="slider-row-left">
Section4
</div>
<div class="slider-row-right">
<div class="icon-view-changes">
</div>
</div>
</div>
</div>
JS implementation in my controller
$scope.panelExpand = false; //setting default flag
$scope.panelCollapse = true; //setting default flag
$scope.expandPanel = function() {
$scope.panelExpand = true;
$scope.panelCollapse = false;
$scope.mainArrayObj = []; // array that holds the data passed in html to custom directive
initialJsonSeparator($scope.model.Data); // method used for iteration
};
$scope.collapsePanel = function() {
$scope.panelExpand = false;
$scope.panelCollapse = true;
};
my HTML code: (using ng-mouseover which is not working and displaying the data passed to navigation bar)
<div class="add-data-request-panel" style="min-height:1071px;" ng-mouseover="hoverIn()"
ng-mouseleave="hoverOut()">
<ul>
<li class="icon-drd icon-drd-diactive"></li>
<li class="icon-pie-chart icon-pie-active"></li>
<li class="icon-publish-req"></li>
<li class="icon-view-changes"></li>
</ul>
</div>
<div class="data-slider-panel" style="min-height:1071px;display"
ng-mouseover="hoverIn()" ng-mouseleave="hoverOut()" ng-show="hoverEdit">
<div class="data-slider-row mtop">
<div class="slider-row-left">
<span class="first-char">S</span>
<span class="second-char">ection1</span>
</div>
<div class="slider-row-right">
<div class="icon-drd icon-drd-diactive">
</div>
</div>
</div>
<div class="data-slider-row">
<div class="slider-row-left">
Section2
<div class="sub-slider-row-left">
<abn-tree tree-data="mainArrayObj"></abn-tree> // array that holds the data passed in html to custom directive
</div>
</div>
<div class="slider-row-right">
<div class="icon-pie-chart icon-pie-active">
</div>
</div>
</div>
<div class="data-slider-row">
<div class="slider-row-left">
Section3
</div>
<div class="slider-row-right">
<div class="icon-publish-req">
</div>
</div>
</div>
<div class="data-slider-row">
<div class="slider-row-left">
Section4
</div>
<div class="slider-row-right">
<div class="icon-view-changes">
</div>
</div>
</div>
</div>
js Implementation for the ng-mouseOver: (while debugging all the iteration and methods executed as expected)
$scope.hoverIn = function() {
this.hoverEdit = true;
$scope.mainArrayObj = []; // array that holds the data passed in html to custom directive
initialJsonSeparator($scope.model.Data); //method used to iterate the data
};
$scope.hoverOut = function() {
this.hoverEdit = false;
};
Any solution to this issue would be of gr8 help. If there is any other better approach other than the ng-mouseOver and ng-mouseLeave to implement hover, please do let me know.

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