gmane.comp.web.witty.general

Re: Wt used to make a RESTful API?

Wim Dumon — 2013-05-17T09:32:06

We certainly want to add JSon output to Wt. It's simple and kind of a shame
that we don't have it.

BR,
Wim.



2013/5/17 Matthew Sherborne <msherborne-Re5JQEeQqe8AvxtiuMwx3w< at >public.gmane.org>

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Re: Wt used to make a RESTful API?

Matthew Sherborne — 2013-05-16T23:12:53

It looks like there's no json generation in the class hierachy.

You could just use c++ streams.

The tricky bits would be the unicode strings, and possibly the number
formatting.

http://json.org



On Fri, May 17, 2013 at 12:50 AM, Ben Jackson <codegardener-Re5JQEeQqe8AvxtiuMwx3w< at >public.gmane.org>wrote:

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Re: Wt used to make a RESTful API?

Ben Jackson — 2013-05-16T14:50:03

Do you have an example of how to use Wt to generate JSON?  Everything I've
found online is just about parsing.  This (old) blog post implies that
serialization was something waiting for a later date:
http://www.webtoolkit.eu/wt/blog/2011/11/29/wt___jwt_3_2_0
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Re: Wt used to make a RESTful API?

Matthew Sherborne — 2013-05-16T02:59:42

Hi Allan,

I wouldn't say it'd be hard, but it would be a fair bit of code to get the
foundation laid down.

I'd subclass WResource, that would allow you to install it at a url like:
/person

http://www.webtoolkit.eu/wt/doc/reference/html/classWt_1_1WResource.html#a3a740f8cc29e2e6e4e58defc9c88b8b6

Then everytime it gets called you can get an instance of
WApplication::instance()::internalPathNextPart() -
http://www.webtoolkit.eu/wt/doc/reference/html/classWt_1_1WApplication.html#a95e6b5e4dc9084d45e166264b10b3c46

and from that determine if they want to 'create', 'edit', get number 4 or
whatever.

You could use the DBO objects for the data access:
http://www.webtoolkit.eu/wt/doc/tutorial/dbo.html

And the auth objects for the auth:
http://www.webtoolkit.eu/wt/doc/tutorial/auth.html

And you could generate and parse json:
http://www.webtoolkit.eu/wt/doc/reference/html/group__json.html

If you wanted to do XML, you'd need an external library though.

Let us know how you get on and if you need a hand.

Kind Rega

Re: Wt used to make a RESTful API?

Craig Miller — 2013-05-14T23:25:33

I did a simple restful API, but didn't figure out how to extract parameters from the URL path.  I wound up using traditional parameters.

Craig

Craig Miller
http://spatialminds.com



On May 14, 2013, at 4:13 PM, Alan Jesser <nigot30-PkbjNfxxIARBDgjK7y7TUQ< at >public.gmane.org> wrote:



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Wt used to make a RESTful API?

Alan Jesser — 2013-05-14T23:13:48

I'm in the process of planning a site and a RESTful API. I haven't used Wt as much as I would like to, so I don't its full capabilities yet, but I wanted to know if anyone has developed a RESTful API with it. If so was it difficult or pretty easy? I want to use Wt for as much of the site and RESTful API as possible. 

Thanks,
Alan
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[BUG?] Grid layout manager issue

Antonio Mancina — 2013-05-14T07:47:57

Hi all,

every now and then we try to perform the "big switch" from a pre-3.2.2 
tree to the most recent available version.

I've recently come across the wt-3.3.0 release and tried once more to 
rebuild plenty of wt applications that our project is comprised of to 
evaluate the impact of a switch.

Well, regretfully our full-of-grid-layout-managers interfaces behave 
quite badly.

One of the weirdest problems happened with a very simple widget 
displacement within a two tabs tabmanager. I attach here the source tree 
ready to be built from the build directory (cmake ../ && make).

In order to trigger the problem, do this steps:

- Click on "Container2" tab
- Click on "Container1" tab
- Click again on "Container2" tab

At that point everything vanishes. If I comment the last code line (the
setMaximumSize directive), everything behaves properly.

I did not open an issue on the bug tracking system only because I'd
make sure this is really a bug and not a bad usage from my side.

Could someone please shed a bit

Re: Wt In Saas, Deploying an Update, Automatic Testing

Wim Dumon — 2013-05-13T16:22:53

So here it is:
http://www.webtoolkit.eu/wt/blog/2013/05/13/selenium_node_locators_for_wt_and_jwt_applications

Wim.



2013/5/13 Burak Kulakli <kulakli-/E1597aS9LT10XsdtD+oqA< at >public.gmane.org>

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Re: Wt WebGL Game Engine

Alan Jesser — 2013-05-13T15:10:57

I don't know about others but I don't believe that everyone has a fast enough and stable enough internet connection to deploy any type of game that may require a lot of constant communication, or the fact that many ISPs put data caps on now. That is why I'm going to use Unigine to make my games that do require that. As for WebGL my plan was to make a collectible card game with it. Communication is minimal and asynchronous. My assets are going to be pretty static but I can display them in a 3D environment with WebGL. To ease loading I'll see about using HTML5 data storage feature and also make sure that Wt can check them as well. This should alleviate the need to always load the assets on each visit to the site. 

The idea of merging Wt with empscripten is interesting. I've been keeping an eye on that project since Unigine has been shown to work with it and their latest SDK makes it easier to use.

Thanks for heads up Wim.

Alan
Date: Mon, 13 May 2013 09:24:44 +0200
From: wim-fsvWVe5cvas< at >public.gmane.org
To:

Re: Wt In Saas, Deploying an Update, Automatic Testing

Burak Kulakli — 2013-05-13T13:06:07

Thanks again Wim,

What I understand is, I have to implement my solution to apply differences

1. Retrieve existing model from database
2. Check any differences between the old model and the new model (add,
delete, modify)
3. Apply differences using SQL statements

I used Ranorex and I came across same problems on a windows
application. Actually the reason for this question is exactly what you
told about. I'll wait for your blog entry.

Regards,
Burak

2013/5/13 Wim Dumon <wim-fsvWVe5cvas< at >public.gmane.org>:

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Re: Wt In Saas, Deploying an Update, Automatic Testing

Wim Dumon — 2013-05-13T09:19:43

2013/5/13 Burak Kulakli <kulakli-/E1597aS9LT10XsdtD+oqA< at >public.gmane.org>

Indeed, that would be 'alter table add column ...'.


The usual applications can be used. It's a bit more difficult because most
of these programs use the id of a field, and Wt automattically assigns
random id's, so there may be a problem finding the right elements to click
on. We will be publishing information on how to use Selenium IDE in
combination with Wt's object name mechanism soon (probably on the blog),
since this is a returning question.

BR,
Wim.
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Re: Wt In Saas, Deploying an Update, Automatic Testing

Burak Kulakli — 2013-05-13T09:08:08

Thanks a lot Wim.

About dbo, I need an example about migration scripts. Suppose that I
have an application running using the class below

class User {
public:
  std::string name;

  template<class Action>
  void persist(Action& a)
  {
    dbo::field(a, name,     "name");
  }
};

Then in new version, I've added a new attribute called age


class User {
public:
  std::string name;
  int age;

  template<class Action>
  void persist(Action& a)
  {
    dbo::field(a, name,     "name");
    dbo::field(a, age,     "age");
 }
};

There is a method called createTables(). Is there (or will be) a
method to update existing tables (Ex. updateTables)?
If not, I need an example code how to add age to an existing database
(need SQL queries I guess)

About tests, I mean a black box user testing, a browser automation. Any ideas?

Regards,

Burak<div class="gmail_extra"><br><br><div
class="gmail_quote">2013/5/10 Wim Dumon <span dir="ltr">&lt;<a
href="mailto:wim-fsvWVe5cvas< at >public.gmane.org"
target="_blank">wim-fsvWVe5cvas< at >pub

Re: webgl demo

Wim Dumon — 2013-05-13T07:14:14

Hello Alan,

Good to hear you found the problem. We recommend to run the examples from
their source folder, not from their build folder, in order to avoid to have
to create all those links.

BR,
Wim.



2013/5/12 Alan Jesser <nigot30-PkbjNfxxIARBDgjK7y7TUQ< at >public.gmane.org>

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Re: Wt WebGL Game Engine

Wim Dumon — 2013-05-13T07:24:44

I haven't used Wt's webgl support for games yet. While it's perfect to
render static data with a client-side camera viewpoint manipulation
handler, I'm not sure if the idea behind the interface is appropriate for
all types of games, especially when the scene changes dynamically - you
must keep the client-server communication minimal for interactive games.
For those scenarios, I'd be very interested to see how the emscripten
approach can be integrated with Wt, which would be a great combo
(emscripten for client-side rendering, Wt for communication and general
application logic).

BR,
Wim.



2013/5/11 PvK <pvk-r/QWpw4xmJA< at >public.gmane.org>

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Re: webgl demo

Alan Jesser — 2013-05-12T19:48:46

So I finally figured out what was causing my issues. When I make the build directory, cmake .., and then go into the examples folder and build those it doesn't have all the links to what is needed. I know I have to link to the resources folder but apparently in the main examples folder there are other folders and resources I need to link to for each example. Once I created those links everything worked fine. 

Alan

Date: Fri, 12 Apr 2013 17:35:49 +0200
From: wim-fsvWVe5cvas< at >public.gmane.org
To: witty-interest-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f< at >public.gmane.org
Subject: Re: [Wt-interest] webgl demo

At the crash line the code is:
minx = maxx = data[0];

I assume that the data vector is empty, so no data is loaded. Check readObj.C, and add some print statements there...

BR,
Wim.

2013/4/12 Alan Jesser <nigot30-PkbjNfxxIARBDgjK7y7TUQ< at >public.gmane.org>

Well the other examples work so I'm not sure why this one would complain about how I'm executing it. Here is a pastebin of the backtrace when running it fr

Re: Wt WebGL Game Engine

PvK — 2013-05-11T19:42:05

I am working on a Wt game, but I haven't been expecting to have a lot of graphics, though I am very interested in what can be done...

--- nigot30-PkbjNfxxIARBDgjK7y7TUQ< at >public.gmane.org wrote:

From: Alan Jesser <nigot30-PkbjNfxxIARBDgjK7y7TUQ< at >public.gmane.org>
To: "witty-interest-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f< at >public.gmane.org"<witty-interest-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f< at >public.gmane.org>
Subject: [Wt-interest] Wt WebGL Game Engine
Date: Sat, 11 May 2013 14:34:19 -0500

So I've been looking at a few HTML5/WebGL game engines lately. Then I remembered that Wt has WebGL support, and I noticed sound as well. Besides needing a few extra features like physics, has anyone thought of using Wt to make a WebGL game? I would rather use Wt to do this than raw JS plus Wt would give me more control over server side communication. 

The payment system could probably be expanded to allow for micro transactions as well.

Alan

-----------------------------------------------------------------------------

Wt WebGL Game Engine

Alan Jesser — 2013-05-11T19:34:19

So I've been looking at a few HTML5/WebGL game engines lately. Then I remembered that Wt has WebGL support, and I noticed sound as well. Besides needing a few extra features like physics, has anyone thought of using Wt to make a WebGL game? I would rather use Wt to do this than raw JS plus Wt would give me more control over server side communication. 

The payment system could probably be expanded to allow for micro transactions as well.

Alan
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Re: Wt In Saas, Deploying an Update, Automatic Testing

Wim Dumon — 2013-05-10T16:21:35

hello,

1. Yes. Load depends on your application. Simple requests are handled
within a milisecond, but it really depends on what the handling of those
events takes. Same goes for memory consumption

2. There are many strategies. You can avoid the impact of an application by
a good support for URLs, so that a full reload of the session (which
happens when you'd restart a server) would put you back in the application
where you were. This would be mostly similar to what you get with other
frameworks. You can also use a reverse proxy that forwards sessions
depending on some prefix in the session ID, and deploy the new applciation
with a different session prefix, and configure your reverse proxy that new
sessions go to one instance while the old sessions are still served by the
old instance (e.g. by running them on separate ports). When there are no
sessions left in the old instance, you can kill it.

3. afaik Wt::Dbo has no features for automatic database migration. You will
have to run your migration scripts ma

Wt In Saas, Deploying an Update, Automatic Testing

Burak Kulakli — 2013-05-09T05:22:04

Hello,

I've a couple of questions.

1. Is Wt convenient for internet Saas applications? On what load (Ex. how
many active users, concurrent requests) it should keep working reasonably?
Any known limits?

2. When a new version of my application comes, how can it be deployed
without interrupting the active users (replace myapp.wt with its new
version). I am planning to use built in http(s) server. Is it possible to
update on background?

3. If I add a new attribute to a class whose objects are stored in database
using Wt::Dbo, Is it possible to apply a patch to database. I mean, is
there a class like a database-patcher which checks my new models and apply
differences to database.

4. Does anyone use an automatic testing suite effectively. Any
recommendations?

Thanks a lot,
Burak
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Re: Newbie questions from Qt developer

Muhammad Bashir Al-Noimi — 2013-05-08T00:29:19

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Re: Newbie questions from Qt developer

Koen Deforche — 2013-05-06T08:19:22

Hey,

Awesome ;-)

Yes. There aren't that many users that use Right-to-Left, and browsers have
some quirks as well, so there may be smaller issues with it. Let us know.


Once built, boost is just a library like any other library, which you
should be able to use easily from any build system though.

Is there any translation tool for parsing generated xml translation file

No, there isn't. The format is easy enough though that you can convert from
one XML format to another using an XLST, I guess.

distinct code bases and there is no plan to start sharing things. Obviously
there is a group of developers that use both Wt and Qt, but this is
actually a minority in the Wt community.

list archive. Personally I have nothing against it, but on the other hand,
I'm not sure it will work well to simply adapt the concept of the Qt
Designer to Wt. Wt doesn't have a 'moc' meta object compiler which comes in
hand to provide the designer introspection in the widgets.

necessarily distributed to the end user) and a desktop