Re: [Lift] About the url rewrite (more thant one params and get 404 not found error)
On Sun, Feb 28, 2010 at 8:28 PM, Neil.Lv wrote:
> Hi all,
>
> I have a silly question about the url rewrite in the lift.
> It has another two params in the url after the img.
>
> http://localhost:8080/show/img/version/id
>
> The url works fine.
> => http://localhost:8080/show/img
> => http://localhost:8080/show/img/v1/
> => http://localhost:8080/show/img/v1/1
>
> Get 404 error if the "/" string is not added at the end of the url
> (the id param isn't supplied)
> => http://localhost:8080/show/img/v1
>
> So, how can i rewrite the url and set the sitemap can make this link
> ( http://localhost:8080/show/img/v1 )
> works fine as ( http://localhost:8080/show/img/v1/ ) when the id
> is not supplied.
>
> Here is the code:
>
> ###
> case RewriteRequest(
> ParsePath(List("show", "img", version, id), _, _,_), _, _) =>
>RewriteResponse(List("show", "img"),
> Map("version" -> version, "id" -> id)
> )
> ###
>
This is just basic pattern matching stuff. So,
case RewriteRequest(
ParsePath("show" :: "img" :: version :: rest, _, _,_), _, _) =>
RewriteResponse(List("show", "img"),
Map("version" -> version, "id" -> (rest.firstOption getOrElse "N/A"))
)
Please pick up a copy of one of the Scala books and look at the pattern
matching section related to Lists. There's a lot of flexibility that's no
Lift-specific, but that Lift leverages.
val entries = Menu(Loc("Home", List("index"), "Home")) ::
> Menu(Loc("show", List("show"), "show", Hidden)) :: User.sitemap
>
> ###
>
> BTW, I use the LiftView to handle the request.
>
> ###
> class show extends LiftView {
> def dispatch = {
>case "img" => imgDispatch _
>case _ => allDispatch _
> }
>
> def imgDispatch(): Box[NodeSeq] = {
>...
> }
>
> def allDispatch(): Box[NodeSeq] = {
>...
> }
> }
> ###
>
> Thanks very much!
>
> Cheers,
> Neil
>
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>
--
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Re: [Lift] About the url rewrite (more thant one params and get 404 not found error)
"Neil.Lv" writes:
> Hi all,
>
> I have a silly question about the url rewrite in the lift.
> It has another two params in the url after the img.
>
> http://localhost:8080/show/img/version/id
>
> The url works fine.
> => http://localhost:8080/show/img
> => http://localhost:8080/show/img/v1/
> => http://localhost:8080/show/img/v1/1
>
> Get 404 error if the "/" string is not added at the end of the url
> (the id param isn't supplied)
> => http://localhost:8080/show/img/v1
>
> So, how can i rewrite the url and set the sitemap can make this link
> ( http://localhost:8080/show/img/v1 )
> works fine as ( http://localhost:8080/show/img/v1/ ) when the id
> is not supplied.
>
> Here is the code:
>
> ###
> case RewriteRequest(
> ParsePath(List("show", "img", version, id), _, _,_), _, _) =>
> RewriteResponse(List("show", "img"),
> Map("version" -> version, "id" -> id)
> )
> ###
I'm not sure if this can be handled with the standard ParsePath, but it
is fairly easy to write your own extractor that can handle more complex
scenarios. Here's an example:
object ParamsExtractor {
def unapply(pp:ParsePath): Option[(Account, OrgUnit)] = {
val result:Box[(Account, OrgUnit)] = if (pp.wholePath.startsWith(path)
&& pp.wholePath.length == (path.length + 2)) {
val res = Full((XX,YY))
debug("Decoded URL: %s=%s".format(pp,res))
res
}
else
None
result
}
}
used like this:
case RewriteRequest(ParamsExtractor(account,orgUnit) , _, _) =>
(RewriteResponse(path), Full(account, orgUnit))
/Jeppe
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[Lift] About the url rewrite (more thant one params and get 404 not found error)
Hi all,
I have a silly question about the url rewrite in the lift.
It has another two params in the url after the img.
http://localhost:8080/show/img/version/id
The url works fine.
=> http://localhost:8080/show/img
=> http://localhost:8080/show/img/v1/
=> http://localhost:8080/show/img/v1/1
Get 404 error if the "/" string is not added at the end of the url
(the id param isn't supplied)
=> http://localhost:8080/show/img/v1
So, how can i rewrite the url and set the sitemap can make this link
( http://localhost:8080/show/img/v1 )
works fine as ( http://localhost:8080/show/img/v1/ ) when the id
is not supplied.
Here is the code:
###
case RewriteRequest(
ParsePath(List("show", "img", version, id), _, _,_), _, _) =>
RewriteResponse(List("show", "img"),
Map("version" -> version, "id" -> id)
)
###
val entries = Menu(Loc("Home", List("index"), "Home")) ::
Menu(Loc("show", List("show"), "show", Hidden)) :: User.sitemap
###
BTW, I use the LiftView to handle the request.
###
class show extends LiftView {
def dispatch = {
case "img" => imgDispatch _
case _ => allDispatch _
}
def imgDispatch(): Box[NodeSeq] = {
...
}
def allDispatch(): Box[NodeSeq] = {
...
}
}
###
Thanks very much!
Cheers,
Neil
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