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Posted to users@tapestry.apache.org by dkeenan <da...@yahoo.co.uk> on 2011/06/20 11:26:32 UTC
Can you dynamically select which page template to return?
Not sure if that makes any sense but here goes... For each page in Tapestry,
I know that I need to specify a page class, and a corresponding TML templage
file for that page.
I was wondering if I can have more than one possible TML file for a page...
and programatically decide which one to use?
Hope makes sense.
Dave.
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Re: Can you dynamically select which page template to return?
Posted by Robert Zeigler <ro...@roxanemy.com>.
The localization happens automatically according to the user's locale (although I suppose you could hijack that override it to suite your purposes). However, in trunk (5.3.0/5.3.1-SNAPSHOT), the concept is currently being generalized to support skinning, etc.
Robert
On Jun 20, 2011, at 6/204:32 AM , dkeenan wrote:
> Ah. Maybe this is what I need to dynamically use a different template for a
> page...
>
> http://tapestry.apache.org/localization.html
>
>
>
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Re: Can you dynamically select which page template to return?
Posted by "Thiago H. de Paula Figueiredo" <th...@gmail.com>.
On Mon, 20 Jun 2011 06:32:02 -0300, dkeenan <da...@yahoo.co.uk>
wrote:
> Ah. Maybe this is what I need to dynamically use a different template
> for a page...
> http://tapestry.apache.org/localization.html
You can also use a combination of page class subclassing and URL rewriting
(LinkTransformer API) for that if localization turns out not enough.
--
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Independent Java, Apache Tapestry 5 and Hibernate consultant, developer,
and instructor
Owner, Ars Machina Tecnologia da Informação Ltda.
http://www.arsmachina.com.br
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Re: Can you dynamically select which page template to return?
Posted by dkeenan <da...@yahoo.co.uk>.
Ah. Maybe this is what I need to dynamically use a different template for a
page...
http://tapestry.apache.org/localization.html
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Re: Can you dynamically select which page template to return?
Posted by Howard Lewis Ship <hl...@gmail.com>.
On Mon, Jun 20, 2011 at 2:03 PM, dkeenan <da...@yahoo.co.uk> wrote:
> Thanks Thiago. Yeah I see what you mean also. Ideally the HTML should be the
> content, and be completely separate from styling (that's CSS's job). This is
> exactly how it should be done as you say, but I'm also keen to reuse
> existing HTML templates without having to re-factor too much (some changes
> would def be needed of course, but I'd rather avoid having do a major
> re-write of existing designs I have). I'm more looking to resuse my existing
> designs, but plug them into the same backend page class as they will be
> using the same data (just doing slightly different things with the data).
>
> I do like the idea of using the localisation functionality that Tapesty has.
> Just feels a little weird as I know that's not it's purpose.
Which is why Tapestry 5.3 extends the selection logic from locale to
locale + other things, that you can define by overriding a few
built-in public services.
>
> Thanks.
>
> Dave.
>
>
>
>
>
>
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Re: Can you dynamically select which page template to return?
Posted by dkeenan <da...@yahoo.co.uk>.
Sounds great. I'll take that approach in that case. Thanks for your help.
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Re: Can you dynamically select which page template to return?
Posted by dkeenan <da...@yahoo.co.uk>.
Hi. I just gave that a go, using localization to serve a different TML
template. Started by adding following lines to AppModule:
public static void contributeApplicationDefaults(
MappedConfiguration<String, String> configuration) {
configuration.add("tapestry.supported-locales", "en,fr");
}
Then set locale programatically:
@Inject
private PersistentLocale localeService;
.
.
.
localeService.set(new Locale("fr")); (did this in Activate method of a super
"Page" class that all my page classes extend.
I have a page called Home.tml (Backed by Home.java which extends Page.java)
I renamed Home.tml to Home_fr.tml.
When I try to access this page however the broser navigates to /fr/Home. I
was thinking that it should just display /Home in the URL as before, but
serve the html from the new template file (Home_fr.tml)?
Thanks again!!
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Re: Can you dynamically select which page template to return?
Posted by "Thiago H. de Paula Figueiredo" <th...@gmail.com>.
On Mon, 20 Jun 2011 18:03:33 -0300, dkeenan <da...@yahoo.co.uk>
wrote:
> Thanks Thiago. Yeah I see what you mean also. Ideally the HTML should be
> the
> content, and be completely separate from styling (that's CSS's job).
> This is
> exactly how it should be done as you say, but I'm also keen to reuse
> existing HTML templates without having to re-factor too much (some
> changes
> would def be needed of course, but I'd rather avoid having do a major
> re-write of existing designs I have). I'm more looking to resuse my
> existing
> designs, but plug them into the same backend page class as they will be
> using the same data (just doing slightly different things with the data).
Now it makes more sense to do what you want the way you want. :)
And don't forget that reusing HTML snippets is very easy and quick in
Tapestry: just write a component.
> I do like the idea of using the localisation functionality that Tapesty
> has. Just feels a little weird as I know that's not it's purpose.
The 5.3 new localization features target exactly this kind of scenario you
have.
--
Thiago H. de Paula Figueiredo
Independent Java, Apache Tapestry 5 and Hibernate consultant, developer,
and instructor
Owner, Ars Machina Tecnologia da Informação Ltda.
http://www.arsmachina.com.br
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Re: Can you dynamically select which page template to return?
Posted by dkeenan <da...@yahoo.co.uk>.
Thanks Thiago. Yeah I see what you mean also. Ideally the HTML should be the
content, and be completely separate from styling (that's CSS's job). This is
exactly how it should be done as you say, but I'm also keen to reuse
existing HTML templates without having to re-factor too much (some changes
would def be needed of course, but I'd rather avoid having do a major
re-write of existing designs I have). I'm more looking to resuse my existing
designs, but plug them into the same backend page class as they will be
using the same data (just doing slightly different things with the data).
I do like the idea of using the localisation functionality that Tapesty has.
Just feels a little weird as I know that's not it's purpose.
Thanks.
Dave.
--
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Re: Can you dynamically select which page template to return?
Posted by "Thiago H. de Paula Figueiredo" <th...@gmail.com>.
On Mon, 20 Jun 2011 16:17:21 -0300, dkeenan <da...@yahoo.co.uk>
wrote:
> This way, I am hoping to work on 2 separate TML files in design mode,
> and the can be served based on which type of user is logged in. For
> example... a funky design versus a more mature design based on the age
> of the user. Sounds weird :-),
I don't think so. I guess most of what you want to do is implementable
using CSS alone and a single template. Check csszengarden.com for that.
Having more information about what would be different for these two user
types would be helpful for us to be helpful to you. :)
--
Thiago H. de Paula Figueiredo
Independent Java, Apache Tapestry 5 and Hibernate consultant, developer,
and instructor
Owner, Ars Machina Tecnologia da Informação Ltda.
http://www.arsmachina.com.br
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Re: Can you dynamically select which page template to return?
Posted by dkeenan <da...@yahoo.co.uk>.
Thanks Lewis. I can see what you mean. It does sound like I'm trying to do something action-oriented/Struts-like. I'm a big fan of the way Tapestry doesn't force you to think in this way and is more intuitive. The reason I ask actually, is more to do with wanting to re-skin pages based on a user. Ie. want the same content (so just need one page class), but Id like to use a different TML file altogether based on the user.
This way, I am hoping to work on 2 separate TML files in design mode, and the can be served based on which type of user is logged in. For example... a funky design versus a more mature design based on the age of the user. Sounds weird :-), but just wondering if there's an easy way to select the TML file at run time, that Tapestry uses with a single page class. I think the localization functionality would actually do just the trick if I just assign the funky styled tml file to one (eg. HomePage_fr.tml) and the refined one (HomePage_en.tml).
Then I can programatically set the local based on the logged in user. Does that sound like a completely deranged way of going about it? :-)
Thanks,
Dave.
Mon, 6/20/11, Howard Lewis Ship [via Tapestry] <ml...@n5.nabble.com> wrote:
From: Howard Lewis Ship [via Tapestry] <ml...@n5.nabble.com>
Subject: Re: Can you dynamically select which page template to return?
To: "dkeenan" <da...@yahoo.co.uk>
Date: Monday, June 20, 2011, 7:49 PM
On Mon, Jun 20, 2011 at 2:26 AM, dkeenan <[hidden email]> wrote:
> Not sure if that makes any sense but here goes... For each page in Tapestry,
> I know that I need to specify a page class, and a corresponding TML templage
> file for that page.
>
It's easy to make a single page dynamic, or to choose one of a number
of different pages to render the response. I feel you may be sticking
too much to the action-oriented framework's view of actions & views;
in Tapestry a page is the combination of an action and a view. This
drives a lot of what Tapestry does for you, in terms of convention
over configuration, and all the plumbing and request handling that the
framework does automatically.
It's a good idea to backtrack from "I need to select two different
output views" back towards the actual user requirement or story. For
instance, "I need to display input validation errors" can be a
condtional portion of a single page. Many other cases can be handled
in terms of having pages with different responsibilities. It's rather
hard to provide guidance in a vacuum.
> I was wondering if I can have more than one possible TML file for a page...
> and programatically decide which one to use?
>
> Hope makes sense.
>
> Dave.
>
>
> --
> View this message in context: http://tapestry.1045711.n5.nabble.com/Can-you-dynamically-select-which-page-template-to-return-tp4505668p4505668.html
> Sent from the Tapestry - User mailing list archive at Nabble.com.
>
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>
>
--
Howard M. Lewis Ship
Creator of Apache Tapestry
The source for Tapestry training, mentoring and support. Contact me to
learn how I can get you up and productive in Tapestry fast!
(971) 678-5210
http://howardlewisship.com
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Re: Can you dynamically select which page template to return?
Posted by dkeenan <da...@yahoo.co.uk>.
Thanks Lewis. I can see what you mean. It does sound like I'm trying to do
something action-oriented/Struts-like. I'm a big fan of the way Tapestry
doesn't force you to think in this way and is more intuitive. The reason I
ask actually, is more to do with wanting to re-skin pages based on a user.
Ie. want the same content (so just need one page class), but Id like to use
a different TML file altogether based on the user.
This way, I am hoping to work on 2 separate TML files in design mode, and
the can be served based on which type of user is logged in. For example... a
funky design versus a more mature design based on the age of the user.
Sounds weird :-), but just wondering if there's an easy way to select the
TML file at run time, that Tapestry uses with a single page class. I think
the localization functionality would actually do just the trick if I just
assign the funky styled tml file to one (eg. HomePage_fr.tml) and the
refined one (HomePage_en.tml).
Then I can programatically set the local based on the logged in user. Does
that sound like a completely deranged way of going about it? :-)
Thanks,
Dave.
--
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Re: Can you dynamically select which page template to return?
Posted by Howard Lewis Ship <hl...@gmail.com>.
On Mon, Jun 20, 2011 at 2:26 AM, dkeenan <da...@yahoo.co.uk> wrote:
> Not sure if that makes any sense but here goes... For each page in Tapestry,
> I know that I need to specify a page class, and a corresponding TML templage
> file for that page.
>
It's easy to make a single page dynamic, or to choose one of a number
of different pages to render the response. I feel you may be sticking
too much to the action-oriented framework's view of actions & views;
in Tapestry a page is the combination of an action and a view. This
drives a lot of what Tapestry does for you, in terms of convention
over configuration, and all the plumbing and request handling that the
framework does automatically.
It's a good idea to backtrack from "I need to select two different
output views" back towards the actual user requirement or story. For
instance, "I need to display input validation errors" can be a
condtional portion of a single page. Many other cases can be handled
in terms of having pages with different responsibilities. It's rather
hard to provide guidance in a vacuum.
> I was wondering if I can have more than one possible TML file for a page...
> and programatically decide which one to use?
>
> Hope makes sense.
>
> Dave.
>
>
> --
> View this message in context: http://tapestry.1045711.n5.nabble.com/Can-you-dynamically-select-which-page-template-to-return-tp4505668p4505668.html
> Sent from the Tapestry - User mailing list archive at Nabble.com.
>
> ---------------------------------------------------------------------
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>
>
--
Howard M. Lewis Ship
Creator of Apache Tapestry
The source for Tapestry training, mentoring and support. Contact me to
learn how I can get you up and productive in Tapestry fast!
(971) 678-5210
http://howardlewisship.com
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