So... does that mean there is a breadcrumbs plugin? Do you have a link for those of us who would like to check it out?
Thanks,
Pam
From: Darryl Pentz [mailto:djpentz@yahoo.com]
Sent: Thursday, May 15, 2008 8:57 AM
To: user@grails.codehaus.org
Subject: Re: [grails-user] Breadcrumbs plugin - need advice
Hi Miguel,
Yes indeed, there is a similarity to the UrlMappings of the Grails application, but the problem of course is that the UrlMappings might be very simple with 2 closures for the root and for controller/action/id, whereas a breadcrumbs tree is usually a lot deeper, broader.
I do however in fact use a class derived from the Grails UrlMappings class in my breadcrumbs plugin.
- Darryl
----- Original Message ----
From: Miguel Ping <miguel.ping@gmail.com>
To: user@grails.codehaus.org
Sent: Thursday, May 15, 2008 2:18:10 PM
Subject: Re: [grails-user] Breadcrumbs plugin - need advice
Hi,
I'm kinda new to grails, and I would really like a breadcrumbs plugin. I have a perhaps dumb question? Isn't it easier to *somehow* plugin into the UrlMappings and decode the current user position based on the incoming request? It seems to me that you are replicating the url mapping structure by hand. Don't know if it's possible though, its just a thought...
Cheers,
Miguel
On Thu, May 15, 2008 at 10:49 AM, Darryl Pentz <djpentz@yahoo.com<mailto:djpentz@yahoo.com>> wrote:
Hi all,
Some time back I posted the comment below to which nobody responded. I'm not
complaining cos i understand the nature of a forum, but I'm just asking
again if anybody has any good ideas regarding my main problem indicated
below - because I'm back to working on this plugin and haven't yet thought
of a good solution. Particularly those of you who have done some plugin
development already.
Muchos gracias.
- Darryl Pentz
Darryl Pentz wrote:
>
> I've designed a breadcrumbs plugin which i'd be happy to throw into the
> mix, though it's got one key flaw which I'd like to address first, and
> perhaps I could get some suggestions of how to do this.
>
> The approach I took for Breadcrumbs is not "this is the path you've taken"
> but rather "this is where you are in our site structure". So what I did
> was to 'define' this structure using a nesting of closures and or strings
> and I build an object tree from this nesting - the breadcrumbs
> configuration. The thing is, I wasn't sure where to put it so I slapped it
> into Config.groovy, but I've found this to be cumbersome and as my
> breadcrumbs tree grows, it really clutters up Config.groovy. So the main
> question and the purpose of this post is, where would a good place be to
> define this tree, if not in Config.groovy, given it's syntax?
>
> Some more background: With this tree in place, I use a taglib to try and
> match the incoming URL against the tree, and it creates a breadcrumbs path
> from that. Now the biggest challenge was how to deal with the dynamic
> nature of the content... for instance if a user were to click on a search
> result that took them to a node 3 levels deep into the tree, some of its
> parent nodes might need to know a bit more about themselves if their
> position contains dynamic content. So I have a 'context' map object that
> is passed into each closure specified in the tree as the taglib climbs up
> the path from the child to the root parent. And it's up to you the
> developer to place necessary objects into that context so that parent
> nodes can figure out whatever they need to about themselves. If a node has
> dynamic content in its url, it should also specify a context.url param
> which the breadcrumb tag will use as the url for that particular node.
>
> At the end of this post is a sample of the breadcrumbs tree. You'll see
> you can specify a label as either a static String, or you can dynamically
> calculate it. If a URL has parameters (as per UrlMappings syntax), those
> are placed into the context as 'args'.
>
> So, assuming what I said makes sense, anybody got a good suggestion of a
> better place to put this tree configuration? Feedback, comments and
> suggestions welcome.
>
> Thanks,
> Darryl Pentz
>
> breadcrumbs = {
> showHomeLink = false
> layout {
> "/profile/list" {
> pseudonyms = "/,/profile"
> label = "Profiles"
> "/profile/summary/$id" {
> label = {context ->
> if (context.args) {
> Profile profile =
> Profile.get(Long.valueOf(context.args[0]))
> context.url = "/profile/summary/${profile.id<
http://profile.id>}"
> return profile.name<
http://profile.name>
> }
>
> Profile profile = context.profile
> context.url = "/profile/summary/${profile.id<
http://profile.id>}"
> return profile.name<
http://profile.name>
> }
> "/profile/listDevices/$id" {
> label = { context ->
> Profile profile;
> if (context.args) {
> profile =
> Profile.get(Long.valueOf(context.args[0]))
> context.profile = profile
> context.url =
> "/profile/listDevices/${profile.id<
http://profile.id>}"
> return "Devices"
> }
>
> profile = context.profile
> context.url = "/profile/listDevices/${profile.id<
http://profile.id>}"
> return "Devices"
> }
> "/device/summary/$id" {
> label = {context ->
> Device device =
> Device.get(Long.valueOf(context.args[0]))
> context.profile = device.profile
> context.url = "/device/summary/${device.id<
http://device.id>}"
> return device.hostname
> }
> }
> }
> .
> .
> .
> }
>
--
View this message in context:
http://www.nabble.com/Breadcrumbs-plugin-tp17017903p17249643.htmlSent from the grails - user mailing list archive at Nabble.com<
http://Nabble.com>.
---------------------------------------------------------------------
To unsubscribe from this list, please visit:
http://xircles.codehaus.org/manage_email
Some parts of this message have been removed.
Learn more about Nabble's security policy.
