If I want to try these new features, how do I get my app to use the
latest and greatest Lift? I tried mvn jetty:run -U, and when that didn't
work I blew away .m2 and tried again, but I'm still getting an error
that it doesn't recognize LocGroup.
This is the dependency in pom.xml:
<dependency>
<groupId>net.liftweb</groupId>
<artifactId>lift-core</artifactId>
<version>0.10-SNAPSHOT</version>
</dependency>
What am I screwing up here?
Thanks.
Chas.
David Pollak wrote:
> Folks,
>
> I've radically enhanced the robustness of Lift's Ajax support.
>
> Previously, Lift's Ajax calls would silently fail and would not be retried.
>
> Now, Ajax calls are retried 3 times (tunable in
> LiftRules.ajaxRetryCount). The delay between calls is 2 ^ (cnt - 1)
> seconds. So, the first retry will be delayed 1 second, the second
> return will delayed 2 seconds, the third return will be delayed 4
> seconds, etc.
>
> It's possible to have a spiffy "working ajax spinner" displayed during
> Ajax calls. LiftRules.ajaxStart: Can[() => JsCmd] and
> LiftRules.ajaxEnd: Can[() => JsCmd] control what's displayed. So:
> /*
> * Show the spinny image when an Ajax call starts
> */
> LiftRules.ajaxStart =
> Full(() => LiftRules.jsArtifacts.show("ajax-loader").cmd)
>
> /*
> * Make the spinny image go away when it ends
> */
> LiftRules.ajaxEnd =
> Full(() => LiftRules.jsArtifacts.hide("ajax-loader").cmd)
>
> Will show and hide an element with the id "ajax-loader" If you have a
> spinning animated GIF in that HTML, it will be shown/hidden during Ajax
> transactions.
>
> You can control what is displayed if the Ajax call fails with:
>
> LiftRules.ajaxDefaultFailure: Can[() => JsCmd] =
> Full(() => JsCmds.Alert(S.??("The server cannot be contacted at this
> time")))
>
> If you have a JSON call, you can have an optional customer error
> handler. For example, if you've got a Comet Chat app, in your CometActor:
>
> override def onJsonError: Can[JsCmd] = Full(Alert("Server communication
> error. Your chat message was not sent."))
>
> Also, note that the calls made by the Comet long poll mechanism have
> their own failure fallback and that's not changed.
>
> There are some breaking changes in SHtml:
> ajaxCall() now takes and returns a JsExp (JavaScript Expression)
> ajaxInvoke() now returns a JsExp (not a String)
>
> I've built off Charles' excellent idea of Location Groups in SiteMap.
> You can have Loc("foo", List("foo"), "Foo",* LocGroup("sales", "fun")*)
>
> There's a new Menu snippet <lift:Menu.group group="sales"
> a:class="menu"><li><menu:bind/></li></lift:Menu.group>
>
> All the menu items in the "sales" group will be displayed inside an
> <li/> and with the class attribute on the <a> tag set to "menu".
>
> Thanks,
>
> David
>
> --
> Lift, the simply functional web framework http://liftweb.net
> Collaborative Task Management http://much4.us
> Follow me: http://twitter.com/dpp
> Git some: http://github.com/dpp
>
> >
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