AngularJS: Best practice displaying static text based on a state/variable - angularjs

I have small text portions like
<div>
<h4>Why Register?</h4>
<p>As candidate...</p>
</div>
opposed to
<div>
<h4>Why Register?</h4>
<p>As company...</p>
</div>
Based on a variable in my controller I insert the correct partial with:
<div ng-switch on="role">
<div ng-switch-when="candidate">
<div ng-include="'candidate.html'"></div>
</div>
<div ng-switch-when="company">
<div ng-include="'company.html'"></div>
</div>
<div ng-switch-default>
<div ng-include="'candidate.html'"></div>
</div>
</div>
This does the job but it looks awful. Is there any way I could do it better?

You could always hold your string vars in javascript or external json file and use markup which is tied to a model like this:
<div ng-controller="something">
<h4>Why Register?</h4>
<p>{{who}}</p>
</div>
and then inside your "something" controller provide code:
if(role == "company")
$scope.who = "As company...";
else
$Scope.who = "As candidate...";
If you have many places in code that use such feature, you could consider holding variables in external json and then reading them in javascript/controller.

You can use:
<div ng-include="(role || 'candidate') + '.html'"></div>

If the parts are not that big you can put them all up there and use ng-show to filter which gets actually shown. This takes up the least markup.
<h4>Why register?</h4>
<p ng-show="isCompany">Company targeted content...</p>
<p ng-show="isCandidate">Candidate targeted content...</p>

Related

How can I change the markup produced by Ninja Forms after the form has been printed on the page?

This is what I gotta deal with:
<nf-field>
<div id="nf-field-2-container" class="nf-field-container lastname-container label-above ">
<div class="nf-before-field">
<nf-section></nf-section>
</div>
<div class="nf-field">
<div id="nf-field-2-wrap" class="field-wrap lastname-wrap nf-fail nf-error" data-field-id="2">
<div class="nf-field-label">
<label for="nf-field-2" class="">Last Name <span class="ninja-forms-req-symbol">*</span> </label>
</div>
<div class="nf-field-element">
<input id="nf-field-2" name="nf-field-2" class="ninja-forms-field nf-element" type="text" value="">
</div>
</div>
</div>
<div class="nf-after-field">
<nf-section>
<div class="nf-input-limit"></div>
<div class="nf-error-wrap nf-error">
<div class="nf-error-msg nf-error-required-error">This is a required field.</div>
</div>
</nf-section>
</div>
</div>
</nf-field>
Please notice the <nf-field> tag. It isn't HTML and has nothing I can use to style it with, regarding what type of input it is, ie. text, textarea, etc.
I have no previous experience of backbone.js and all the javascript by Ninja Forms is minified, so I don't know where to even begin with all that. This is what I did come up with:
(function ($) {
$(window).load(function(){
$('.nf-field-container').unwrap('nf-field');
});
})(jQuery);
This javascript is placed and the very bottom of the page, just before </body>. My excitement was short lived when I discovered that for some reason it only works on hard reload (at least when I develop on localhost).
The whole form is wrapped in a div that has the class .nf-form-cont (or just create it if there isn't).
Your JS should look like this:
(function ($) {
$(window).load(function(){
// Remove unnecessary NF mark ups
$('.nf-form-cont').find("nf-field").contents().unwrap();
$('.nf-form-cont').find("nf-fields-wrap").contents().unwrap();
$('.nf-form-cont').find("nf-section").contents().unwrap();
$('.nf-form-cont').find("nf-errors").contents().unwrap();
});
})(jQuery);

(DNN/2sxc) Tokens in Template doesn't replaced with values

I have a problem with an token template in 2sxc V.8.4.5 on DNN 7.4.2. It's a template with support ListContent and ListPresentation:
<div class="row">
<div class="col-md-12">[ListContent:Toolbar]
<h[ListContent:Presentation:TitleHTag] style="text-align:[ListContent:Presentation:TitleTextAlign];">[ListContent:Titel]</h[ListContent:Presentation:TitleHTag]>
<p style="text-align:[ListContent:Presentation:TextTextAlign];">[ListContent:Text]</p>
<repeat>
<div class="col-md-[Content:Presentation:BootstrapWidthContent]">[Content:Toolbar]
<div>
<p><img src="[Content:Image]" style="float:[Content:Presentation:CssImageFloat];margin-top:8px; width:[Content:Presentation:CssWidthImage]"/></p>
</div>
<h[Content:Presentation:Title1HTag] class="[Content:Presentation:CssClassColorTitle]">[Content:Title]</h[Content:Presentation:Title1HTag]>
<h[Content:Presentation:Title2HTag] class="[Content:Presentation:CssClassColorTitle2]">[Content:SubTitle]</h[Content:Presentation:Title2HTag]>
<div class="[Content:Presentation:CssClassColorText]">[Content:Text]<br /><br />
<a class="[Content:Presentation:CssClassColorLinkText]" href="[Content:Link]">[Content:LinkText]</a>
</div>
</div>
</repeat>
</div>
</div>
The problem are at the lines:
<h[Content:Presentation:Title1HTag] class="[Content:Presentation:CssClassColorTitle]">[Content:Title]</h[Content:Presentation:Title1HTag]>
<h[Content:Presentation:Title2HTag] class="[Content:Presentation:CssClassColorTitle2]">[Content:SubTitle]</h[Content:Presentation:Title2HTag]>
Some tokens in that lines are not replaced with values. i'm getting
<h class="titlered">Title1<h>
<h class="titlered">Title2<h>
It cannot be a problem with Content:Presentation, because the other tokens from this presentation are correct replaced.
Any hints?
I have to guess a bit, but I'm thinking of some kind of spelling / naming issues. Are you sure, that the field is really called Title1HTag, or could it be a misspelling like Titel1HTag or TitleH1Tag?
I recommend that you try to output the value somewhere else just to look at it, like
XXX[tag-to-test]YYY

angular: how to iterate over unlike objects and render different templates

Say I have:
$scope.array = [{type: 'event'}, {type: 'alert'}];
How can I iterate over that and render a different item out of $templateCache for each, based on type. We can assume 'event.html' and 'alert.html' exist.
What other than Keegan's answer you can do is :
<div ng-repeat='a in array'>
<div ng-include="a.type + '.html'"></div>
</div>
This way you get event.html or error.html loaded as per the value
I think what you're looking for is the following.
<div ng-repeat='a in array'>
<div ng-if="a.type =='event'">
// EVENT.html TEMPLATE
</div>
<div ng-if="a.type == 'alert'">
// ALERT.html TEMPLATE
</div>
</div>

Why is my ng-hide / show not working with my ng-click?

I want to show the elements that contain displayCategory.name with the ng-click above it, but it's not working as expected.
.divider-row
.row-border(ng-hide="showMe")
.row.row-format
.col-xs-12.top-label
Find where you stand
%hr.profile
.row.labelRow
.col-xs-12
%ul
%li(ng-repeat='category in service.categories')
.clear.btn.Category(ng-click='thisCategory(category) ; showMe = true') {{category.name}}
.divider-row
.row-border(ng-show="showMe")
.row.row-format
.col-sm-12.col-md-12.top-label.nopadLeft
What do you think about {{displayCategory.name}}
I dropped your haml into a converter and this is what it spat out (clearly incorrect):
<div class="divider-row">
<div class="row-border">(ng-hide="showMe")
<div class="row row-format">
<div class="col-xs-12 top-label">
Find where you stand
</div>
</div>
<hr class="profile"/>
<div class="row labelRow">
<div class="col-xs-12">
<ul>
<li>(ng-repeat='category in service.categories')
<div class="clear btn Category">(ng-click='thisCategory(category) ; showMe = true') {{category.name}}</div>
</li>
</ul>
</div>
</div>
</div>
<div class="divider-row"></div>
<div class="row-border">(ng-show="showMe")
<div class="row row-format">
<div class="col-sm-12 col-md-12 top-label nopadLeft">
What do you think about {{displayCategory.name}}
</div>
</div>
</div>
</div>
So after some quick googling I found that you should be writing it like this:
.divider-row
.row-border{"ng-hide" => "showMe"}
.row.row-format
.col-xs-12.top-label
Find where you stand...
As that will convert to what you need:
<div class="divider-row">
<div class="row-border" ng-hide="showMe">
<div class="row row-format">
<div class="col-xs-12 top-label">
Find where you stand
Using curly braces instead of round ones for attributes
I cannot run your code to verify, but I think the problem is that the binding property showMe should be replaced with some object like status.showMe.
For example, define $scope.status = { showMe: false}; outside the ng-repeat (in your controller maybe).
Please check a working demonstration: http://jsfiddle.net/jx854d3y/1/
Explanations:
ng-repeat creates a child scope for each item. The child scope prototypical inherits from the parent scope. In your case, the primitive showMe is assigned to the child scope. While you use it outside the ng-repeat, where it tries to get the value from the parent scope, which is undefined. That is why it is not working.
Basic rule is: always use Object, instead of primitive types, for binding.
For more details, please refer to: https://github.com/angular/angular.js/wiki/Understanding-Scopes

Angular.js ng-switch-when not working with dynamic data?

I'm trying to get Angular to generate a CSS slider based on my data. I know that the data is there and am able to generate it for the buttons, but the code won't populate the ng-switch-when for some reason. When I inspect the code, I see this twice (which I know to be correct as I only have two items):
<div ng-repeat="assignment in assignments" ng-animate="'animate'" class="ng-scope">
<!-- ngSwitchWhen: {{assignment.id}} -->
</div>
My actual code:
<div ng-init="thisAssignment='one'">
<div class="btn-group assignments" style="display: block; text-align: center; margin-bottom: 10px">
<span ng-repeat="assignment in assignments">
<button ng-click="thisAssignment = '{{assignment.id}}'" class="btn btn-primary">{{assignment.num}}</button>
</span>
</div>
<div class="well" style="height: 170px;">
<div ng-switch="thisAssignment">
<div class="assignments">
<div ng-repeat="assignment in assignments" ng-animate="'animate'">
<div ng-switch-when='{{assignment.id}}' class="my-switch-animation">
<h2>{{assignment.name}}</h2>
<p>{{assignment.text}}</p>
</div>
</div>
</div>
</div>
</div>
EDIT: This is what I'm trying to emulate, though with dynamic data. http://plnkr.co/edit/WUCyCN68tDR1YzNnCWyS?p=preview
From the docs —
Be aware that the attribute values to match against cannot be expressions. They are
interpreted as literal string values to match against. For example, ng-switch-when="someVal"
will match against the string "someVal" not against the value of the expression
$scope.someVal.
So in other words, ng-switch is for hardcoding conditions in your templates.
You would use it like so:
<div class="assignments">
<div ng-repeat="assignment in assignments" ng-animate="'animate'">
<div ng-switch="assignment.id">
<div ng-switch-when='1' class="my-switch-animation">
<h2>{{assignment.name}}</h2>
<p>{{assignment.text}}</p>
</div>
</div>
</div>
Now this might not fit your use case exactly, so it's possible you'll have to rethink your strategy.
Ng-If is probably what you need — also, you need to be aware of "isolated" scopes. Basically when you use certain directives, like ng-repeat, you create new scopes which are isolated from their parents. So if you change thisAssignmentinside a repeater, you're actually changing the variable inside that specific repeat block and not the whole controller.
Here's a demo of what you're going for.
Notice I assign the selected property to the things array (it's just an object).
Update 12/12/14: Adding a new block of code to clarify the use of ng-switch. The code example above should be considered what not to do.
As I mentioned in my comment. Switch should be thought about exactly like a JavaScript switch. It's for hardcoded switching logic. So for instance in my example posts, there are only going to be a few types of posts. You should know a head of time the types of values you are going to be switching on.
<div ng-repeat="post in posts">
<div ng-switch on="post.type">
<!-- post.type === 'image' -->
<div ng-switch-when="image" class="post post-image">
<img ng-src="{{ post.image }} />
<div ng-bind="post.content"></div>
</div>
<!-- post.type === 'video' -->
<div ng-switch-when="video" class="post post-video">
<video ng-src="{{ post.video }} />
<div ng-bind="post.content"></div>
</div>
<!-- when above doesn't match -->
<div ng-switch-default class="post">
<div ng-bind="post.content"></div>
</div>
</div>
</div>
You could implement this same functionality with ng-if, it's your job to decide what makes sense within your application. In this case the latter is much more succinct, but also more complicated, and you could see it getting much more hairy if the template were any more complex. Basic distinction is ng-switch is declarative, ng-if is imperative.
<div ng-repeat="post in posts">
<div class="post" ng-class="{
'post-image': post.type === 'image',
'post-video': post.type === 'video'">
<video ng-if="post.type === 'video'" ng-src="post.video" />
<img ng-if="post.type === 'image'" ng-src="post.image" />
<div ng-bind="post.content" />
</div>
</div>
Jon is definitely right on. Angular does not support dynamic ngSwitchWhen values. But I wanted it to. I found it actually exceptionally simple to use my own directive in place of ngSwitchWhen. Not only does it support dynamic values but it supports multiple values for each statement (similar to JS switch fall-throughs).
One caveat, it only evaluates the expression once upon compile time, so you must return the correct value immediately. For my purposes this was fine as I was wanting to use constants defined elsewhere in the application. It could probably be modified to dynamically re-evaluate the expressions but that would require more testing with ngSwitch.
I am use angular 1.3.15 but I ran a quick test with angular 1.4.7 and it worked fine there as well.
Plunker Demo
The Code
module.directive('jjSwitchWhen', function() {
// Exact same definition as ngSwitchWhen except for the link fn
return {
// Same as ngSwitchWhen
priority: 1200,
transclude: 'element',
require: '^ngSwitch',
link: function(scope, element, attrs, ctrl, $transclude) {
var caseStms = scope.$eval(attrs.jjSwitchWhen);
caseStms = angular.isArray(caseStms) ? caseStms : [caseStms];
angular.forEach(caseStms, function(caseStm) {
caseStm = '!' + caseStm;
ctrl.cases[caseStm] = ctrl.cases[caseStm] || [];
ctrl.cases[caseStm].push({ transclude: $transclude, element: element });
});
}
};
});
Usage
Controller
$scope.types = {
audio: '.mp3',
video: ['.mp4', '.gif'],
image: ['.jpg', '.png', '.gif'] // Can have multiple matching cases (.gif)
};
Template
<div ng-switch="mediaType">
<div jj-switch-when="types.audio">Audio</div>
<div jj-switch-when="types.video">Video</div>
<div jj-switch-when="types.image">Image</div>
<!-- Even works with ngSwitchWhen -->
<div ng-switch-when=".docx">Document</div>
<div ng-switch-default>Invalid Type</div>
<div>

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