I'm trying to build my Parse iOS project in a way that'll be more easy to migrate later on for the client should he desire it.
To that end, I'm trying to use the REST API instead of relying on PFUser and PFObjects.
But I love the PFLoginViewController-- it's such a time saver. Is there a way I can use that pre-built login/sign-up flow with the REST API instead of PFUser?
I don't think that u could use it without PFUser but u could create similar to that and time will be consumed.
Still One thing might work out, check this link and I hope you have already but this will show how to integrate the PFLoginViewcontroller so in that they have logInView which will provide you access to all component like loginButton, usernameTextField, passTextField and etc. So you could access to these component your own explicit component.
Like, you could create your own UIButton(namely, logInBtn with action selector and all) then access it to logInView.LogInButton = logInBtn(your own button) and in this button's action you could make Rest api calls for login, and similarly for other component which needs to be modified for your requirement.
Related
I want to add "Weather: 24C" to the rental-listing component of the super-rentals tutorial app.
Where would be the "best-practices" place to put this ajax request?
Ember.$.getJSON(`http://api.openweathermap.org/data/2.5/weather?q=${location}&APPID=${apiKey}`)
.then(function(json) {
return JSON.parse(json).main.temp;
});
Do I need to add a component, add a model, add a service, add a second adapter, modify the existing adapter? Something else? All of these? Is the problem that the tutorial uses Mirage? I ask this because when I think I'm getting close, I get an error like this:
Mirage: Your Ember app tried to GET
'http://api.openweathermap.org/data/2.5/weather?q=london&APPID=5432',
but there was no route defined to handle this request.
Define a route that matches this path in your
mirage/config.js file. Did you forget to add your namespace?
You need to configure mirage to allow you making calls to outside in case mirage is active; what I mean is using this.passthrough function within mirage/config.js, that is explained in api documentation quite well.
Regarding your question about where to make the remote call is; it depends:
If you need the data from the server to arrive in case a route is about to open; you should prefer putting it within model hook of the corresponding route.
If you intend to develop a component that is to be reused from within different routes or even from within different applications with the same remote call over and over again; you can consider putting the ajax remote call to a component. Even if that is not a very common case usually; it might be the case that a component itself should be wrapped up to fetch the data and display it by itself for reusing in different places; there is nothing that prevents you to do so. However by usually applying data-down action-up principle; generally the remote calls fall into routes or controllers.
Whether using an ember-data model is another thing to consider. If you intend to use ember-data; you should not directly use Ember.$.ajax but rather be using store provided by ember-data and perhaps providing your custom adapter/serializer to convert data to the format ember-data accepts in case the server do not match to the formats that ember-data accepts. In summary; you do not need to use models if you use pure ajax as you do in this question.
I'm trying to use express-flash in a standard web express js app. I don't want to use session, because I want to do the app as stateless as possible, but when I try to use without session, the app show me this error:
req.flash() requires sessions
Can I use express-flash without session? Can I use other alternatives for this kind of messages?
Thanks.
Note: A flash message is a variable stored within a session that is only available once, for the next request. That is if we put a flash variable and renders a page, the flash variable is available but if we render the same (or other) page again the flash variable is not present (it is destroyed).
-- acanimal
Based on this premise, you need to have sessions to use message flashing.
One way I think you can accomplish what you want is to add an item to the request (req) object in your middleware, and then in your controller, check if the key exists. You can then pass a specific message to your template, assuming you're using a template engine or pass it as part of your response.
Hope this helps.
I am new to eventBus() function in SAPUI5.
I am using eventBus.publish() in Table.view.js controller to publish data & have used eventBus.subscribe() in MainPage.view.js controller. It is working fine.
But while I try to implement eventBus.subscribe() in another controller ("Feed.view.js"), it is not working. Why is it so?
The cause of you problem is likely one of the following:
You are not using the same EventBus in all cases (e.g. in one case
you use the sap.ui.getCore().getEventBus(), and in another case you
use your component's oComponent.getEventBus())
You are not using the same channel
You are not using the same event ID
Please check this, and if it doesn't help post more of your code.
I have a Web Service like ServiceA.asmx. What is the right way to consume it?
I have two ways to consume a service:
1)adding Service Refernce:
I have added Service Refernce of ServiceA.asmx ( Like in http://microsoftfeed.com/2011/part-14-how-to-consume-a-web-service-in-windows-phone-7) and i am able to call the Functions in Service like in the link i have given. If we use this way there is no need to parse the Result, Result returned in Objects(easy to use).
2)Hitting the URL and Calling asynchronously:
Here we can hit the URL, that function will call the asynchronous function that asynchronous function will return the response. But here response will be in XML here we have to parse that XML in to an Object.(not easy if any Big XML is there)
Please Guide me on this
Personally I would use the 'Add service reference' option. It's easy to use, and this option is added to Visual Studio especially for consuming web services. You can still use MVVM to build up your models/viewmodels.
I don't have the option to check it right now, but from my head the classes generated when adding the service reference also implement INotifyPropertyChanged. So you could probably use the object directly (if they are in the structure as you want to use it.) as your Model. Based on that model you can create your own ViewModel which you can bind to the UI.
To see how this works have a look at the code samples on MSDN:
Implementing the Model-View-ViewModel Pattern in a Windows Phone Application
Weather Forecast Sample
Im pretty new to struts2 and Ajax ,Actually i have a drop down menu in JSP lets say first.jsp, When user select a choice from dropdown menu,I am calling a function of Action class lets say Method1.In this method i am fetching some value from DB(lets say:a,b,c) and one value from java memory lets say d.Then I am forwarding to second.jsp and display all the parameters(a,b,c and d) in tabular format.
Now problem is that the parameter d is dynamic ,this is updating by some other application and if its change then I have to show it on JSP wihout any action.
One solution is I use in second.jsp , so after interval of 10 second again Mehod1 will call and it will fetch value(a,b,c) from db and updated value of d from java memory. and disply it to second.jsp.But in this case i am unnecessary retrieving value from db while my purpose is just to get value d from memory.This is working but this is causing my application to slower.
Can any body suggetst some other solution? or can i do it using ajax and how?
Any other advice? any help is appreciated.try to be more clear, i'm in lack of ideas in this problem, even it sounds like a classic :I have spend hours trying to play around with this but have got nowhere
Okay... What you're asking is a little fuzzy so let me rephrase:
You have a user (USER1) who opens a web page and sees some data.
You have a second user (USER2) (who may be an application) who is able set a value from time to time.
When USER2 updates that value you want USER1 to see it change in their open browser window?
If this is the case you need to understand basic ajax. For that get these demo applications working:
This example uses dojo and perhaps the S2 ajax tag lib I don't remember I prefer not to use ajax tags (as they are deprecated and prefer jquery for ajax):
http://struts.apache.org/2.x/docs/struts-2-spring-2-jpa-ajax.html
This example here shows a very similar application but using jquery, no tag library, upgraded to Spring 3, it still needs polish:
http://www.kenmcwilliams.com/Downloads/
Now that you know how to get data via ajax, look at the request with firebug. You'll see that the request is just like a typical function call, the browser keeps waiting for the data to come back.
What you do is simply not return from the action until new data is provided. This is called long polling see: http://en.wikipedia.org/wiki/Comet_%28programming%29#Ajax_with_long_polling
If you have not written a simple chat program, using just terminal windows I recommend you do so. Two windows per client (client-send, client-receive windows) and you'll need a server program. I remember hacking one together in a few hours using _Thinking In Java 2nd Edition (Later books took out the networking section if I remember correctly). Anyways between understanding client server interaction and long polling will let you get things working. It would be fun to extend the simple terminal based chat application to a S2 ajax chat application. Would make an awesome tutorial! PS: This is just an application of the producer/consumer problem (If you understand that then I guess you don't need to do the fun exercise).
The interfaces would look very pretty if the server was managed by spring. I know there must be nice servers already written but I am not familiar with any, but would love to hear of one.