angular/angular

Discussion for angular (2+) - need help? create a stackblitz with your issue to get help faster using this template: https://stackblitz.com/fork/angular-issue-repro2

Alexander Wieser

@crystalbyte

@justindujardin Thanks, however this does only solve the problem for a single method, I was hoping for a more generic way to access the root objects.

Perhaps it's just me, I come from the C++/C# land far far away, where the global scope has been banished from the lands :P

Justin DuJardin

@justindujardin

Updated material components, with better test coverage and a revamped example site making use of the new peekaboo component. https://justindujardin.github.io/ng2-material/

Rob Wormald

@robwormald

don't use the wrappers :) they're internal

hgrubst

@hgrubst

Hello, I'm trying to programatically access all the route definitions of my top level Router. Something similar to what $state.get() does in ui-router. Is there anyway this can be done ?

Alexander Wieser

@crystalbyte

Is there a way to trigger an http observable, such as http.get to fetch the data multiple times or do I need to create a new one each time and replace the old ?

Rob Wormald

@robwormald

you can just resubscribe to it

though it depends what you're looking to do - polling? or?

Alexander Wieser

@crystalbyte

@robwormald Lets just say I need to refresh the data coming from a get request. I was hoping to be able to call this.items.refresh() so the entire sequence is simply run again.

Rob Wormald

@robwormald

there's a couple of ways you could do it

Rob Wormald

@robwormald

@crystalbyte http://plnkr.co/edit/4nXIGadieEaVGxYR9lL3?p=preview

Alexander Wieser

@crystalbyte

@robwormald I'd love to hear them ;) Perhaps you could explain to me if its possible to bind directly against a single Observable. When using the ngFor directive I can simply use the async pipe

<section *ngFor="#p of profiles | async"></section>

How do I do that directly without using *ngFor.

Rob Wormald

@robwormald

the same way - though typically i would have a profile component and do something like <profile [data]="profile | async">

Alexander Wieser

@crystalbyte

Isn't it overkill to create an entire component merely for fetching some json data?

Rob Wormald

@robwormald

not for fetching

for displaying

to encapsulate the profile or whatever

Alexander Wieser

@crystalbyte

@robwormald Thanks for the plunker, I am currently trying to understand how it works.

Rob Wormald

@robwormald

there's basically two sequences

the initial load

Alexander Wieser

@crystalbyte

@robwormald Ok, so we fetch the data into the [data] property from the Observable profiles, thanks.

Rob Wormald

@robwormald

and then another which is a sequence of clicks -> mapped to requests

and then they just get concatted together into a single sequence

Eric Martinez

@ericmartinezr

:point_up: 28 de Diciembre de 2015 12:06 @robwormald sorry for insisting, do you have any comments on that question?

Rob Wormald

@robwormald

didn't see that question

if its a single-value-sequence (like an http request) the manual cleanup is unnecessary (assuming you subscribe in the controller manually)

if its an infinite sequence, you should unsubscribe

which the async pipe does for you,

Eric Martinez

@ericmartinezr

got it, thanks :+1:

Rob Wormald

@robwormald

i should say "if its a sequence that completes"

(of which single value sequences, a la http, are one)

Alexander Wieser

@crystalbyte

@robwormald Are you sure that the http sequence completes ? I tried using .finally() on it and it was never invoked, it should, however, if complete is being called.

Or is complete called after ngOnDestroy ?

Brandon

@brandonroberts

@hgrubst there isn't a built-in way currently possible to get the route definitions once they are configured. Depending on what you need you can get some of that data from the instruction or route data if you need something custom.

Rob Wormald

@robwormald

@crystalbyte http://plnkr.co/edit/WDskuaHYity15c3cug7C?p=preview

yes, i'm sure :)

Zahadi Eslicho

@panKt

Once I do injector.get(RouteParams) it throws No provider for RouteParams!
Where shall I look?

P.S. here is bootstrap

  return bootstrap(App, [
    HTTP_PROVIDERS,
    ROUTER_PROVIDERS
  ])

Anthony

@qdouble

@robwormald I'm trying to see what would be the best way to incorporate google's recaptcha as no one has put out any code for it yet for Ang2, any recommendations on what would be the best way to approach?

Rob Wormald

@robwormald

how does it work?

@panKt you dont need to be using the injector

Anthony

@qdouble

@robwormald well this is how someone wrote the script for it to work on Ang 1, not sure if I would have to just try to rewrite it for Ang2 or look into using lifecycle hooks and elementref https://github.com/VividCortex/angular-recaptcha/tree/master/src

Zahadi Eslicho

@panKt

@robwormald actually I’m trying to write some code inside @CanActivate decorator. And in that code I need to refer to RouteParams

but because Component is not created on @CanActivate cycle, I need to inject it

hgrubst

@hgrubst

@brandonroberts Ok that's what I thought. The reason I want that is to do a wizard style form with multiple step. I like having the steps configured in one central place for which the router makes sense. The fact that you can add arbitrary data to routes makes this even more convenient. With this you can then write a breadcrumb component which renders the wizard steps to the user.

@brandonroberts I can hardcode the routes in my component for now. Would be a nice addition to the router I think though.

Rob Wormald

@robwormald

@panKt https://github.com/angular/angular/issues/4112#issuecomment-140188434

Zahadi Eslicho

@panKt

@robwormald That’s it, thanks :)

Rob Wormald

@robwormald

@qdouble looking at the docs, i'd probbaly just add a directive to the captcha element

Zahadi Eslicho

@panKt

@robwormald ok, I untimely said it is ok, check it out http://plnkr.co/edit/siMNH53PCuvUBRLk6suc?p=preview this one also says
No provider for RouteParams!
if you click on Protected Page link

Rob Wormald

@robwormald

i dunno that it'll work, to be honest.

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