removing and adding a class based on position within an array Angular - javascript

I am creating a blog page using angular 5 where each of the blog posts have the class:
col-md-4
However, what I want is the latest blog post (i.e the first on the page) to have the class of :col-md-12.
The html that I have is as follows:
<div *ngFor="let blog of blogs" class="blog-posts col-md-4">
<div class="card">
<img class="blog-img" (click)="goToBlogDetailsPage(blog.sys.id)"src="{{blog.fields.blogimage.fields.file.url}}" class="rounded" alt="">
<div class="info">
<h3 class="author">{{blog.fields.authorInfo}}</h3>
<h2 (click)="goToBlogDetailsPage(blog.sys.id)" class="title">{{blog.fields.title}}</h2>
<p class="short-desc" > {{blog.fields.desciption}}</p>
<img (click)="goToBlogDetailsPage(blog.sys.id)" class="sml-logo" src="/assets/img/logos/logo_blue.png" alt="">
<!-- <button (click)="goToBlogDetailsPage(blog.sys.id)"class="btn btn-info">Open Blog Post</button> -->
</div>
</div>
</div>
</div>
</div>
I have tried accessing the index of the array[0] however I can not seem to alter the styling on just the first item, any suggestions?

Use index and ternary operator to set the class
<div *ngFor="let blog of blogs; let ind = index" class="blog-posts"
[ngClass]="ind === 0 ? 'col-md-12' : 'col-md-4'" >

Related

Handlebars lookup to make an href

I am trying to make a mod on an existing app. All I want to do is create an href that contains a url, but using the handlebars lookup function. When I try it just returns a blank value.
Here is my function:
var cardLink = function generateCardLink() {
var url = `"url/container-scan-reports/${vendor}/${product}/${image}"`
return url;
}
//...
res.render('vendor', {
title: 'Vendor Images',
images: images,
tags: tags,
cardLink: cardLink
});
I am then trying to pass in href this way on the top div of template.
<div class="row row-cards-pf ">
{{#each images}}
<div href={{lookup ../cardLink #index }} class="col-xs-12 col-sm-6 col-md-4 col-lg-4">
<div class="card-pf card-pf-view card-pf-view-select card-pf-view-single-select">
<div class="card-pf-body">
<div class="card-pf-top-element">
<span class="pficon-image card-pf-icon-circle"></span>
</div>
<h2 class="card-pf-title text-center">
{{ this }}
</h2>
<div class="card-pf-items text-center">
<div class="card-pf-item">
{{{ lookup ../tags #index}}}
</div>
</div>
<!-- <p class="card-pf-info text-center"><strong>Most recent image</strong> {{ lookup ../mostRecentImages #index}}</p> -->
</div>
<div class="card-pf-view-checkbox">
<input type="checkbox">
</div>
</div>
</div><!-- /col -->
{{/each}}
Can anyone help me?
You don't need lookup in this case. I think you want to display the url, so #index is not the right reference. Try it this way:
<div href={{../cardLink}} class="col-xs-12 col-sm-6 col-md-4 col-lg-4">

How to stop all items from being opened when editing item in ngFor loop

I have an array of objects and you can edit the name of each one but then I click to edit one all of the names of the items open, I am wondering how do to fix this.
<div *ngFor="let stop of fave; let i = index" attr.data="{{stop.Type}}">
<div class="card m-1">
<div class="card-body">
<div class="card-text">
<div class="row">
<label class="name" *ngIf="!toggleName" (click)="toggleName = true">{{stop.Name}}</label>
<div class="md-form" *ngIf="toggleName">
<input (keydown.enter)="updateStopName(i, stop.id); toggleName = false" placeholder="Chnage Stop Name" [(ngModel)]="stopName" required mdbInput type="text"
id="form1" class="form-control">
</div>
</div>
<div class="custom">
<img *ngIf="stop.Type === 'Train'" class="train-icon" style="width: 40px; height:40px"
src="assets/img/icon_trian.png" />
<img *ngIf="stop.Type === 'bus'" style="width: 40px; height:40px" src="assets/img/icon_bus.png" />
<img *ngIf="stop.Type === 'Luas'" style="width: 40px; height:40px"
src="assets/img/icon_tram.png" />
</div>
<label class="col-4 custom-label">Stop</label>
<label class="col-5 custom-service-label">Service</label>
<div class="row">
<span class="col-5 stop"> {{stop.StopNo}}</span>
<span style="padding-left:31%;" class="col-6 stop"> {{stop.Type | titlecase}}</span>
</div>
<hr />
<div class="row">
<div class="panel col-7" (click)="getRealtimeInfo({stop: stop.StopNo, type: stop.Type})">
<img class="panel-realtime" src="assets/img/icon_view.png" />
</div>
<div class="panel col-5" (click)="deleteFav(stop.id, i)">
<img class="panel-remove" src="assets/img/icon_remove.png" />
</div>
</div>
</div>
</div>
</div>
</div>
I know its something to do with the index but I am not sure how to write the code to only open the one I clicked on
As you can see at the moment all of them open any help is very much appreciated
If you want to open one at a time, you can use the index and of the item and a boolean. When clicked, set the index value to toggl if it's not already assigned, else assign it null (so that we can close the opened div on same click), and then show the content you want, when toggl === i. Something like:
<div *ngFor="let stop of fave; let i = index">
<label (click)="toggl === i ? toggl = null : toggl = i">Stuff!</label>
<div *ngIf="toggl === i">
<!-- ... -->
</div>
</div>
DEMO: StackBlitz
In your component declare one array
hideme=[];
In your html
<div *ngFor="let stop of fave; let i = index" attr.data="{{stop.Type}}">
<a (click)="hideme[i] = !hideme[i]">show/hide</a>
<div [hidden]="hideme[i]">The content will show/hide</div>
</div>
You have a unique id value inside your array, then you can do it like this:
<div *ngFor="let row of myDataList">
<div [attr.id]="row.myId">{{ row.myValue }}</div>
</div>
Assign an id to your input fields and they will work fine. Right now all of them have same id.
Use this code below as an example:
In your component, create a mapping like so:
itemStates: { [uniqueId: string]: boolean } = {};
Within your on click function:
itemClicked(uniqueId: string) {
let opened: boolean = this.itemStates[uniqueId];
if (opened !== undefined) {
opened = !opened; // Invert the result
} else {
opened = true;
}
}
In your HTML:
<div *ngFor="let item of items">
<h1 (click)="itemClicked(item.uniqueId)">{{ item.name }}</h1>
<div *ngIf="itemStates[item.uniqueId] == true">
<p>This item is open!</p>
</div>
</div>
Essentially, each item in your array should have a unique identifier. The itemStates object acts as a dictionary, with each unique ID having an associated true/false value indicating whether or not the item is open.
Edit: The accepted answer to this question is very simple and works great but this example may suit those who need to have the ability to have more than one item open at once.

Plugin not applying changes on ngFor directed div Angular 5.2

I've been searching for the solution for a few days but unable to find one that works. The issue is that this div which has a class ish-container-inner, is linked to a js plugin which works only with this code below:
<div class="ish-container-inner ish-product">
<div class="ish-main-content ish-pflo-gal ish-scroll-anim ish-2col ish-square ish-content-parallax">
<div class="ish-item">
<div class="ish-item-container">
<div class="ish-caption-container">
<div class="ish-caption">
<span class="ish-h4 ish-txt-color9">Special Effects</span> <span class="ish-separator">/</span> <span>Ink</span></div>
</div>
<div class="ish-img">
<img src="assets/img/bniinks-003.jpg" alt="Project">
</div>
</div>
</div>
</div>
</div>
But as soon as I'll put *ngFor like below, it won't work. Even with ngIf present:
<div class="ish-container-inner ish-product" *ngIf="products">
<div class="ish-main-content ish-pflo-gal ish-scroll-anim ish-2col ish-square ish-content-parallax">
<div class="ish-item" *ngFor="let product of products">
<div class="ish-item-container">
<div class="ish-caption-container">
<div class="ish-caption">
<span class="ish-h4 ish-txt-color7">{{ product.name }}</span> <span class="ish-separator">/</span> <span>Ink</span>
</div>
</div>
<div class="ish-img">
<a href="product-detail.html" class="ish-img-scale" [style.background]="'url('+product.thumbnail+')'">
<img src="{{product.thumbnail}}" alt="Project"></a>
</div>
</div>
</div>
</div>
</div>
I have valid data at this point in products but the plugin is not working for these div elements. I don't know why. Without the ngFor directive. Div is assigned some stylings automatically which are changed by the plugin on scroll i.e.
<div class="ish-main-content ish-pflo-gal ish-scroll-anim ish-2col ish-square ish-content-parallax" style="position: relative; height: 629px; margin-top: -99.5455px;" data-initial-top="0">
But if I put ngIf or ngFor directive. It doesn't work anymore and these stylings are not assigned automatically. Awaiting response :)

How to create an array of divs with content?

I'm trying to create an array of nested divs, in which I only need to change 3 values when writing the divs to the document (html).
My divs look like this:
<div class="item">
<div class="item-h"> <a class="item-anchor" href="1_water_bottle.html">
<div class="item-image"> <img class="item-image-first" src="images/img_1_water_bottle.png" alt="">
<div class="item-meta">
<h2 class="title">Water Bottle 1</h2>
<span class="item-arrow"></span> </div>
</div>
</a> </div>
</div>
I need to create an array of about 50 items, and then use the document.write function to write 4 of those arrays for each page, as a section for "similar stuff".
I searched on stackoverflow, and came up with :: this page :: , which explains how to create an array in javascript, and then found another script that uses the document.write function.
The script uses an array of categories, to populate a form selection. And it does so, but using an array : (var categories = new Array("a1", "a2", "a3", ...) and so on.
for(var hi=0; hi<categories.length; hi++)
document.write("<option value=\""+categories[hi]+"\">"+categories[hi]+"</option>");
Could I use these two scripts to populate a section with 4 items from the array of the divs?
If so, then how could I do it? I know it can be done in php, but don't know if this can be done in javascript.
I tried, and created this array in notepad++, but the code wasn't recognized as a string, per array element...
var array_divs = [
$('<div class="item">
<div class="item-h"> <a class="item-anchor" href="1_water_bottle.html">
<div class="item-image"> <img class="item-image-first" src="images/img_1_water_bottle.png" alt="">
<div class="item-meta">
<h2 class="title">Water Bottle 1</h2>
<span class="item-arrow"></span> </div>
</div>
</a> </div>
</div>') ,
$('<div class="item">
<div class="item-h"> <a class="item-anchor" href="1_water_bottle_2.html">
<div class="item-image"> <img class="item-image-first" src="images/img_1_water_bottle_2.png" alt="">
<div class="item-meta">
<h2 class="title">Water Bottle 2</h2>
<span class="item-arrow"></span> </div>
</div>
</a> </div>
</div>')
]
Trying to populate the section, with selective items from the array, for example:
document.write(array_divs[1],array_divs[2]);
I haven't tried this, but since notepad++ didn't treat my div as a string, I had to search again... but couldn't find any info regarding this.
Thanks for any help.
-

AngularJs ng-repeat does not update after filter object gets updated

Hi I am working on requirement where my filter object is keep getting changed and because of that i have to change ng-repeat on div.
html code :
<div class="col-md-6" ng-repeat="model in models | filter:{ModelText : '!All models', ModelId: '!FilteredModelIds'}:true">
<div class="well">
<div class="media">
<div class="media-object small"><i class="pp-car"></i></div>
<div class="media-body">
<div class="text-box">
<h3>{{model.ModelText}}</h3><span class="hr-small"></span>
</div>
<div class="dashboard-control clearfix">
<div class="simple-metric text-left sub-metric">
<div class="metric-title">Satisfaction score</div>
<div class="metric-number text-red">{{model.SatisfactionAvg}}</div>
</div>
<div class="simple-metric text-left sub-metric">
<div class="metric-title">Total interviews</div>
<div class="metric-number">{{model.TotalInterviews}}</div>
</div>
</div>
<ul class="list-standard">
<li> View interviews</li>
</ul>
</div>
</div>
</div>
</div>
here is the angular js code:
function getModelId() {
dataFactory.getModelIdByFilter($scope.region, $scope.subregion).success($scope.handleSuccess).then(function (result) {
$scope.FilteredModelIds = result.data;
});
}
Model json :
[{"ModelId":0,"ModelText":"All models","Sequence":0,"TotalInterviews":0,"SatisfactionAvg":0.000000},{"ModelId":1,"ModelText":"A3","Sequence":20,"TotalInterviews":2062,"SatisfactionAvg":9.637245},{"ModelId":2,"ModelText":"A4","Sequence":30,"TotalInterviews":3106,"SatisfactionAvg":9.743721},{"ModelId":3,"ModelText":"A5","Sequence":40,"TotalInterviews":1863,"SatisfactionAvg":9.694041},{"ModelId":4,"ModelText":"A6","Sequence":50,"TotalInterviews":280,"SatisfactionAvg":9.642857},{"ModelId":5,"ModelText":"A8","Sequence":70,"TotalInterviews":46,"SatisfactionAvg":11.217391},{"ModelId":9,"ModelText":"Q5","Sequence":110,"TotalInterviews":3176,"SatisfactionAvg":9.503778},{"ModelId":10,"ModelText":"Q7","Sequence":120,"TotalInterviews":1355,"SatisfactionAvg":9.685608},{"ModelId":11,"ModelText":"R8","Sequence":130,"TotalInterviews":31,"SatisfactionAvg":10.064516},{"ModelId":12,"ModelText":"TT","Sequence":140,"TotalInterviews":408,"SatisfactionAvg":9.764705},{"ModelId":13,"ModelText":"A1","Sequence":10,"TotalInterviews":1087,"SatisfactionAvg":10.097516},{"ModelId":14,"ModelText":"A7","Sequence":60,"TotalInterviews":263,"SatisfactionAvg":10.190114},{"ModelId":15,"ModelText":"Q3","Sequence":105,"TotalInterviews":1045,"SatisfactionAvg":9.542583}]
on page load its showing proper data with filter. but on change of filtered object in my case FilteredModelIds, its not getting updated. any help is appreciated.
please let me know if i am worng here.
Thanks.

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