Is breadcrumbs component hard in Tapestry?

[Vjeran Marcinko <vj...@email.t-com.hr>]

Hello all.

I tried to develop my breadcrumbs component, but it seems that it is a bit 
harder than expected to do it in component framework.

Anyway, has anyone developed the same and is willing to share? IMPORTANT 
NOTE: this breadcrumb component should be dynamic in nature, not using only 
PageLinks to render links, but also DirectLinks (or whatever) to be able to 
pass some additional argument required for displaying some breadcrumb page. 
Typical case is when some breadcrumb link is leading to some EntityHome page 
of some db entity that requires entity ID to be displayed.

Regards,
Vjeran


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Re: Is breadcrumbs component hard in Tapestry?

[Vjeran Marcinko <vj...@email.t-com.hr>]

----- Original Message ----- 
From: "Robert Zeigler" <ro...@scazdl.org>
To: "Tapestry users" <us...@tapestry.apache.org>
Sent: Thursday, September 21, 2006 9:10 PM
Subject: Re: Is breadcrumbs component hard in Tapestry?


>I haven't made a breadcrumbs component in tapestry. But I have a comment on 
>implementation:
> If it's possible that some (or all) pages in the trail need parameters (as 
> you mentioned), don't use page links or Direct Links at all; your pages 
> (at least all of the ones that might end up as a "crumb") probably ought 
> to implement the IExternalPage (or is it IExternal? I always forget...) 
> interface, do the setup based on the objectid (or whatever setup) in the 
> activateExternalPage method, and then your component can (should) use 
> ExternalLinks.  This will keep your links much nicer, and the page setup 
> logic contained within the appropriate page.

Thanx Robert.

I also thought that it would maybe work with IExternal stuff because these 
seem most similar to traditional action-based aproach. Listener method would 
be a little uglier though.

-Vjeran


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Re: Is breadcrumbs component hard in Tapestry?

[Robert Zeigler <ro...@scazdl.org>]

I haven't made a breadcrumbs component in tapestry. But I have a comment 
on implementation:
If it's possible that some (or all) pages in the trail need parameters 
(as you mentioned), don't use page links or Direct Links at all; your 
pages (at least all of the ones that might end up as a "crumb") probably 
ought to implement the IExternalPage (or is it IExternal? I always 
forget...) interface, do the setup based on the objectid (or whatever 
setup) in the activateExternalPage method, and then your component can 
(should) use ExternalLinks.  This will keep your links much nicer, and 
the page setup logic contained within the appropriate page.

Vjeran Marcinko wrote:

> Hello all.
>
> I tried to develop my breadcrumbs component, but it seems that it is a 
> bit harder than expected to do it in component framework.
>
> Anyway, has anyone developed the same and is willing to share? 
> IMPORTANT NOTE: this breadcrumb component should be dynamic in nature, 
> not using only PageLinks to render links, but also DirectLinks (or 
> whatever) to be able to pass some additional argument required for 
> displaying some breadcrumb page. Typical case is when some breadcrumb 
> link is leading to some EntityHome page of some db entity that 
> requires entity ID to be displayed.
>
> Regards,
> Vjeran
>
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: users-unsubscribe@tapestry.apache.org
> For additional commands, e-mail: users-help@tapestry.apache.org




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