AngularJS set title and description in head when populating content from JSON - angularjs

Before I go and do this in Jquery out of frustration I figured I would ask what the angular way is?
I'm building an AngularJS site using a model based of the Phonecat tutorial example on the AngularJS site.
I found this method to set the title of a page and can work out how to modify it to do description as well in the app config but this doesn't work when I'm populating pages with content via json. I tried doing it using a ngbind method as well but have yet to find a working solution as I think something to do with the order in which files are loaded is breaking.
For example
when('/faq', {
templateUrl: 'sub_pages/articles.html',
title: 'Landing page title goes here, not to big a deal'
}).
when('/things-to-do/:activityID', {
templateUrl: 'sub_pages/activity-detail.html',
controller: 'activityDetailCtrl',
title: 'If I put a title here it will be the same on all of these pieces of content'
}).
What method can I use in order to set title on both the landing pages and also the pages which draw their content from a JSON feed?
EDIT - ANSWER BELOW

After about 2 days of bashing my head against a wall trying to work this one out it's actually quite simple and works for both static pages and templates with dynamically loaded content.
Inside the view pages (html that loads inside of ng-view) add a couple of divs (you can put this anywhere really) and then inside them you need to load in ng-init.
ng-init="$root.title = path.to.title"
ng-init="$root.description = path.to.description"
This will set the title and description on the root scope. The "path.to." is just an example path to content in json, you can replace this with plain text as well which is how I deal with landing pages.
Then on the index.html or what ever page your app is based on inside the head you just need to load in.
Your Page Title
This will automatically set your page title and description meta tags and you can pretty much use this formula for any other meta data you need to create.
I haven't tested this yet with Prerender.io or any other cache service but will do some checks and post the results here.

Something like
$document[0].title = "xyz";

Related

Access url with params that is directly pasted in search bar in next js

So i know how dynamic routing and stuff works when you are navigating from inside the next.js app using or Router.push(). What I don't understand is say i have a URL:
http://localhost:3000/jhondoe
Now i directly paste this URL into the browser. How will next know which page to render? Keep in mind that the Jhondoe part is not exactly a page but a path param that i need to access to display stuff related to Jhon doe.
In next you can do something like [id] that is create a folder like this in pages and put your actual page here.

Angular js - echoing data across multiple html pages

I've worked with many languages and environments (predominately iOS & C#) and have always managed to avoid working with scripting languages. That avoidance streak has come to an abrupt end: as a huge angularjs project was thrown in my lap - now I'm scrambling to understand this very strange world. Some features are really cool, other techniques have me thoroughly baffled. I've spent weeks reading tutorials, studying examples and I still cannot solve a relatively simple problem regarding best practices and structure of the code.
This is what I need to do: I have a form, where the user will input data (for argument's sake, its two fields of number type.) I need to have a banner at the top of the page with the sum of the two input fields - that by itself is relatively easy - but the problem for me, is repeating this banner on subsequent pages.
Home page will contain links to:
page 1
page 2
The link to page 2 will not be available until the user inputs data on page 1, forcing the user to visit page 1, first. The banner element needs to be a separate file. Page 2 is a passive display of the data, Page 1 is only page that can actively edit the data.
page 1: would look like this --
banner.html (sum of fields A & field B)
input field A
input field B
page 2:
banner.html (sum of field A & field B)
Lorem Ipsum ....
What's the best way to achieve this task?
You can have an index page with the banner on top, and partials using the same controller. The value of the banner will be a controller variable.
To use partials, inside the index page, you'll need to include the ngRoute module, and the script tag linking to it.
You'll have a div like this.
<div ng-view=""></div>
You'll have a partialRoutes.js file looking something like this.
myApp.config(function($routeProvider){
$routeProvider
.when('/',{
templateUrl: './partials/things.html'
})
.when('/stuff',{
templateUrl: './partials/stuff.html'
})
.when('/otherstuff',{
templateUrl: './partials/otherstuff.html'
})
.otherwise({
redirectTo: '/',
})
});
When you include ngRoute it will look something like this.
var myApp = angular.module('myApp', ['ngRoute']);
Here are the docs for ngRoute. Hope I helped.
https://docs.angularjs.org/api/ngRoute
Personally, I would have a service, lets call it userData. Your inputController would then write the details of the inputs to the userData service.
Your bannerController would then be notified of changes to the data in the userData service (via $watch or $broadcast)
This way when you switch pages the bannerController should not change and will still display this information
Notes:
This relies on you using some kind of AngularJS routing technique such as NGroute or UI Router. If a hard page navigation is made then the userData will have to be stored server side.
It would probably be better for the banner to stay outside any ui-view so that it is unaffected by navigation, but if it is then as the userData service will still be alive and holding the correct data when it is recreated it will have access to the same data
If both pages have same controller, then $scope can be used to achieve this. If pages have different controller, $rootScope can be used to share variables.

angular and ui-router - opening a detail page

I'm sure ui-router is very useful when a site gets complex, but man is it indecipherable on a simple site.
I've got a table with a bunch of records on a summary page called /records/. (not concerned about how this page was built - it's built with ng-grid)
I want to click on record 102 and have it open /records/102 where I will use the id to show deets of 102.
This plunker is never going to work, but I've tried to put the basics in:
http://plnkr.co/edit/qfEaMM8Ihgg8gCUAMHbE?p=catalogue
enter code here
This: {{row.entity['id']}} does give me the record ID I'm looking for - I've got that working. It's a matter of how I get it to routes.js where it says url: '/records/:recId' and then how I get it to appear in the URL when it goes to the new page.
How do I do that?
(P.S. 'Submit Error: links to Plunker must be accompanied by code'. What??)
To redirect to /records/102 you just use a normal html anchor like this:
<a href="/records/{{row.entity['id']}}" ...>
Yo get the value out in your RecordsController you need to use the $routeParams service, inject it and use it like this:
$scope.recordId = $routeParams.recId;

How to prevent Angular from turning URL hash into a path

I have an angular app with a number of links. Clicking each link displays a particular set of data. I would like each link to set a hash in the URL, like http://foo.com/bar#item1, and I'd also like to show the page with the particular set of data displaying when that URL with the hash is accessed directly.
I was hoping to do it by reading / manipulating the $location.hash(), but as soon as I inject $location into my controller, the #item1 in the URL changes to #/item1. Is there a way to prevent Angular from doing this, and what's the best way of setting up what I described?
You could pass parameters in the routes /bar/item1, catch it with $routeParams and if exist make $location.hash().
"controller"
var anchor = $routeParams.anchorBottom;
if(anchor){
$location.hash(anchor);
$anchorScroll();
}
"link to section"
$location.path('/heart/bottom');
"route"
.when('/heart/:anchorBottom',{
You could see this running here.

Do we need multiple controllers to implement routes in angularjs?

There is chance that I might not be able to explain my problem properly. Let me try.
I am developing a single page application using angular. This app basically displays the episodes of an online novel series. There is a navigation bar, which has query menus (Like, latest episode, episode of a particular date, episodes with a particular tag, etc). For each of these queries, i want a separate url.
/latest - should display the latest episode
/tag/:tagname - should return all episodes with that tag.
For all these queries, the resultant view is the same (list of episodes). So I will be using the same partial for all routes.
My question is, Should I actually create a new controller for each query? like, LatestEpisodeController, TagController?
Is there anyway I can use the url to determine what the user wants and run that query from within the same controller?
Ofcourse you can use same controller in routing definition, the question is what is the purpose of that? It will be worse to debug it later, if you have a shared functionality it's better to turn it into a factory or service and then use in controllers.
But the answer is YES, you can use same controllers and implement different behaviour basing on i.e. $location.path()
yes you can use single controller for multiple routing..
you can create different functions in controller and in each function do the according job.
In my case I have created different html page for different url and registered same controller for the html pages and in the html page I have called controller method using ng-init in div portion.
You can use same controller and same views as you wish...
$location can help you to get current path or full url if you want and you can call your service depends on your path...
here I write a little example for you to get the idea
PLUNKER

Resources