Re: [Zope] AJAX and Zope

2006-05-24 Thread Greg Fischer

The one thing I have found about Ajax and Zope (Ajax and anything
really) is that your returned scripts are typically so customized to
your web page DOM and your application logic.  So, as someone else
posted, Zope handles everything in it's own separate objects anyway,
so no need for a special server side processing system.  This is just
my limited experience though.

I found it was just as easy to use Dojo Toolkit and my plain old DTML
objects on Zope2 for my app server.  You could just as easily use PT
and Python scripts.  Have a look at this site I did as a demo last
fall.

http://www.zajax.net

I was first asking the same things you were.  I wanted a library or
some other way to handle the Ajax calls, but found it was so simple to
just use Dojo and let it do asynchronous calls to Zope DTML objects.
What I have is uber simple, but that's all I wanted.

I can't remember if in that demo I returned javascripts or html, but I
do know that with Dojo you can do either one.  I built another small
Ajax app later, and it does return javascripts. (very fast updates
that way)



On 5/24/06, Pascal Peregrina <[EMAIL PROTECTED]> wrote:

By Zope objects I meant:

You've got a page template for example, and you include such an "AJAX enabled 
object", basically rendering an HTML fragment, and the resulting page will include 
the page template code + the fragment (similar to a macro call), but will also include 
the needed javascript code to handle the asynchronous communication.

Then another thing would be something like a PythonScript object (so you define 
python code and return python structures) and get it rendered as javascript to 
be included in somepage for processing the data returned by an asynchronous 
XML-RPC call to Zope within the browser.

Does it make more sense now?

Pascal

-Message d'origine-
De: Lennart Regebro [mailto:[EMAIL PROTECTED]
Envoyé: mercredi 24 mai 2006 14:56
Ŕ: Pascal Peregrina
Cc: zope@zope.org
Objet: Re: [Zope] AJAX and Zope

On 5/24/06, Pascal Peregrina <[EMAIL PROTECTED]> wrote:
> I was wondering if there is any plan to have built-in support (i.e.
> helpers, built-in Zope objects, etc) in order to support AJAX in Zope at
> some point.

The helpers would then be some sort of Ajax JS library. I think that
at this time it makes more sense to let people choose for themselves.
If one turns out to be better than the others, it will spread around
the community and become a "default" standard, and then maybe it's
interesting to include as a standard package, but thats a big maybe
and a big if.

I don't know what any built-in Zope-objects would do for Ajax. :)

--
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CPS Content Management http://www.cps-project.org/


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Re: [Zope] AJAX and Zope

2006-05-24 Thread Jim Washington

Lennart Regebro wrote:

On 5/24/06, Pascal Peregrina <[EMAIL PROTECTED]> wrote:

By Zope objects I meant:

You've got a page template for example, and you include such an "AJAX 
enabled object", basically rendering an HTML fragment, and the 
resulting page will include the page template code + the fragment 
(similar to a macro call), but will also include the needed 
javascript code to handle the asynchronous communication.


That is a macro call. There is no difference. It just that the macro
includes the HTML needed to suck in the JS library you use.
I have been working on a simple WSGI middleware filter that handles js 
library insertion pretty well, without complicated macros that assure 
that a javascript library gets included only once. 

It works by creating a WSGI environ variable for desired includes.  
Individual widgets ask a utility to register their need for a particular 
javascript or css resource into that environ variable.


After Zope is finished generating the page, the middleware inserts the 
appropriate 

Re: [Zope] AJAX and Zope

2006-05-24 Thread Lennart Regebro

On 5/24/06, Tarek Ziadé <[EMAIL PROTECTED]> wrote:

You might want to look at Azax approach as well:
besides the way it works (you define behaviors in XML files, that get
processed by a js engine)
it gathers Zope 3 help views, that let the developer define the behavior
in Python

I think the stuff lennart talks about is CrackAjax, but IIRC it is  not
really maintained
and let you kinda write javascript in Python: the python code is not
valid (can't be tested, etc..), but translated to valid javascript


I was thinking loosely about both approaches, as I'm not fully up to
date about the progress in these areas.

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RE: [Zope] AJAX and Zope

2006-05-24 Thread Pascal Peregrina
Well, that's why I mentioned this in my initial mail:
http://jtauber.com/blog/2006/05/23/primitive_python_version_of_gwt_working
(the python to javascript translator part)

Of course I know how to make some AJAX to in Zope for some specific 
application. But I wanted to know if some of the core Zope developers had ever 
thought about a more generic approach. 

For example I am sure that having this "python to javascript translator" and 
objects like PythonScripts that would have a "javascript" view is something 
that would make AJAX enabled pages development on Zope much easier (just a 
matter of including the JS library and then make some python code).

Pascal

-Message d'origine-
De : Lennart Regebro [mailto:[EMAIL PROTECTED] 
Envoyé : mercredi 24 mai 2006 15:27
À : Pascal Peregrina
Cc : zope@zope.org
Objet : Re: [Zope] AJAX and Zope

On 5/24/06, Pascal Peregrina <[EMAIL PROTECTED]> wrote:
> By Zope objects I meant:
>
> You've got a page template for example, and you include such an "AJAX enabled 
> object", basically rendering an HTML fragment, and the resulting page will 
> include the page template code + the fragment (similar to a macro call), but 
> will also include the needed javascript code to handle the asynchronous 
> communication.

That is a macro call. There is no difference. It just that the macro
includes the HTML needed to suck in the JS library you use.

> Then another thing would be something like a PythonScript object (so you 
> define python code and return python structures) and get it rendered as 
> javascript to be included in somepage for processing the data returned by an 
> asynchronous XML-RPC call to Zope within the browser.

Thare has been discussions and efforts to make a library where you can
write python code and get Ajax out, yes. It is very non-trivial. :)

-- 
Lennart Regebro, Nuxeo http://www.nuxeo.com/
CPS Content Management http://www.cps-project.org/


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Re: [Zope] AJAX and Zope

2006-05-24 Thread Tarek Ziadé
Lennart Regebro wrote:

> On 5/24/06, Pascal Peregrina <[EMAIL PROTECTED]> wrote:
>
>> By Zope objects I meant:
>>
>> You've got a page template for example, and you include such an "AJAX
>> enabled object", basically rendering an HTML fragment, and the
>> resulting page will include the page template code + the fragment
>> (similar to a macro call), but will also include the needed
>> javascript code to handle the asynchronous communication.
>
>
> That is a macro call. There is no difference. It just that the macro
> includes the HTML needed to suck in the JS library you use.
>
>> Then another thing would be something like a PythonScript object (so
>> you define python code and return python structures) and get it
>> rendered as javascript to be included in somepage for processing the
>> data returned by an asynchronous XML-RPC call to Zope within the
>> browser.
>
>
> Thare has been discussions and efforts to make a library where you can
> write python code and get Ajax out, yes. It is very non-trivial. :)


You might want to look at Azax approach as well:
besides the way it works (you define behaviors in XML files, that get
processed by a js engine)

it gathers Zope 3 help views, that let the developer define the behavior
in Python

I think the stuff lennart talks about is CrackAjax, but IIRC it is  not
really maintained
and let you kinda write javascript in Python: the python code is not
valid (can't be tested, etc..), but translated to valid javascript

Tarek


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Re: [Zope] AJAX and Zope

2006-05-24 Thread Lennart Regebro

On 5/24/06, Pascal Peregrina <[EMAIL PROTECTED]> wrote:

By Zope objects I meant:

You've got a page template for example, and you include such an "AJAX enabled 
object", basically rendering an HTML fragment, and the resulting page will include 
the page template code + the fragment (similar to a macro call), but will also include 
the needed javascript code to handle the asynchronous communication.


That is a macro call. There is no difference. It just that the macro
includes the HTML needed to suck in the JS library you use.


Then another thing would be something like a PythonScript object (so you define 
python code and return python structures) and get it rendered as javascript to 
be included in somepage for processing the data returned by an asynchronous 
XML-RPC call to Zope within the browser.


Thare has been discussions and efforts to make a library where you can
write python code and get Ajax out, yes. It is very non-trivial. :)

--
Lennart Regebro, Nuxeo http://www.nuxeo.com/
CPS Content Management http://www.cps-project.org/
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RE: [Zope] AJAX and Zope

2006-05-24 Thread Andreas Jung



--On 24. Mai 2006 14:18:34 +0100 Pascal Peregrina 
<[EMAIL PROTECTED]> wrote:



By Zope objects I meant:

You've got a page template for example, and you include such an "AJAX
enabled object", basically rendering an HTML fragment, and the resulting
page will include the page template code + the fragment (similar to a
macro call), but will also include the needed javascript code to handle
the asynchronous communication.

Then another thing would be something like a PythonScript object (so you
define python code and return python structures) and get it rendered as
javascript to be included in somepage for processing the data returned by
an asynchronous XML-RPC call to Zope within the browser.


You can do this already in Zope now in some way. Since AJAX requirements 
for an app are usually highly specific it does not make much sense to 
support a particular usecase. Zope is open and flexible enough to implement 
everything you need on top of it.


-aj



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Web: www.zopyx.com - Email: [EMAIL PROTECTED] - Phone +49 - 7071 - 793376
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Re: [Zope] AJAX and Zope

2006-05-24 Thread Jonathan

Have you looked at:

http://zif.hill-street.net/jsonserver


Jonathan

- Original Message - 
From: "Pascal Peregrina" <[EMAIL PROTECTED]>

To: 
Sent: Wednesday, May 24, 2006 9:18 AM
Subject: RE: [Zope] AJAX and Zope



By Zope objects I meant:

You've got a page template for example, and you include such an "AJAX 
enabled object", basically rendering an HTML fragment, and the resulting 
page will include the page template code + the fragment (similar to a 
macro call), but will also include the needed javascript code to handle 
the asynchronous communication.


Then another thing would be something like a PythonScript object (so you 
define python code and return python structures) and get it rendered as 
javascript to be included in somepage for processing the data returned by 
an asynchronous XML-RPC call to Zope within the browser.


Does it make more sense now?

Pascal

-Message d'origine-
De : Lennart Regebro [mailto:[EMAIL PROTECTED]
Envoyé : mercredi 24 mai 2006 14:56
À : Pascal Peregrina
Cc : zope@zope.org
Objet : Re: [Zope] AJAX and Zope

On 5/24/06, Pascal Peregrina <[EMAIL PROTECTED]> wrote:

I was wondering if there is any plan to have built-in support (i.e.
helpers, built-in Zope objects, etc) in order to support AJAX in Zope at
some point.


The helpers would then be some sort of Ajax JS library. I think that
at this time it makes more sense to let people choose for themselves.
If one turns out to be better than the others, it will spread around
the community and become a "default" standard, and then maybe it's
interesting to include as a standard package, but thats a big maybe
and a big if.

I don't know what any built-in Zope-objects would do for Ajax. :)

--
Lennart Regebro, Nuxeo http://www.nuxeo.com/
CPS Content Management http://www.cps-project.org/


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RE: [Zope] AJAX and Zope

2006-05-24 Thread Pascal Peregrina
By Zope objects I meant:

You've got a page template for example, and you include such an "AJAX enabled 
object", basically rendering an HTML fragment, and the resulting page will 
include the page template code + the fragment (similar to a macro call), but 
will also include the needed javascript code to handle the asynchronous 
communication.

Then another thing would be something like a PythonScript object (so you define 
python code and return python structures) and get it rendered as javascript to 
be included in somepage for processing the data returned by an asynchronous 
XML-RPC call to Zope within the browser.

Does it make more sense now?

Pascal

-Message d'origine-
De : Lennart Regebro [mailto:[EMAIL PROTECTED] 
Envoyé : mercredi 24 mai 2006 14:56
À : Pascal Peregrina
Cc : zope@zope.org
Objet : Re: [Zope] AJAX and Zope

On 5/24/06, Pascal Peregrina <[EMAIL PROTECTED]> wrote:
> I was wondering if there is any plan to have built-in support (i.e.
> helpers, built-in Zope objects, etc) in order to support AJAX in Zope at
> some point.

The helpers would then be some sort of Ajax JS library. I think that
at this time it makes more sense to let people choose for themselves.
If one turns out to be better than the others, it will spread around
the community and become a "default" standard, and then maybe it's
interesting to include as a standard package, but thats a big maybe
and a big if.

I don't know what any built-in Zope-objects would do for Ajax. :)

-- 
Lennart Regebro, Nuxeo http://www.nuxeo.com/
CPS Content Management http://www.cps-project.org/


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Re: [Zope] AJAX and Zope

2006-05-24 Thread Lennart Regebro

On 5/24/06, Pascal Peregrina <[EMAIL PROTECTED]> wrote:

I was wondering if there is any plan to have built-in support (i.e.
helpers, built-in Zope objects, etc) in order to support AJAX in Zope at
some point.


The helpers would then be some sort of Ajax JS library. I think that
at this time it makes more sense to let people choose for themselves.
If one turns out to be better than the others, it will spread around
the community and become a "default" standard, and then maybe it's
interesting to include as a standard package, but thats a big maybe
and a big if.

I don't know what any built-in Zope-objects would do for Ajax. :)

--
Lennart Regebro, Nuxeo http://www.nuxeo.com/
CPS Content Management http://www.cps-project.org/
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Re: [Zope] AJAX and Zope

2006-05-24 Thread Andreas Jung



--On 24. Mai 2006 13:43:27 +0100 Pascal Peregrina 
<[EMAIL PROTECTED]> wrote:



Hi,

I was wondering if there is any plan to have built-in support (i.e.
helpers, built-in Zope objects, etc) in order to support AJAX in Zope at
some point. Zope is already XML-RPC compliant, so it should not be very
difficult to do so...


I don't know why and where Zope itself as application server should support 
AJAX? AJAX support makes sense on a higher application level like schema 
(Archetypes, Z3 schemas etc.). Zope provides enough infrastructure to build 
anything to deal with Ajax in *some way* (what do you mean with "some 
point*?). But I doubt that Zope must deal with Ajax on the application 
server level.


-aj


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[Zope] AJAX and Zope

2006-05-24 Thread Pascal Peregrina
Hi,

I was wondering if there is any plan to have built-in support (i.e.
helpers, built-in Zope objects, etc) in order to support AJAX in Zope at
some point. Zope is already XML-RPC compliant, so it should not be very
difficult to do so...

Has anyone seen this?
http://jtauber.com/blog/2006/05/23/primitive_python_version_of_gwt_worki
ng

Pascal


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