Hey guys,
Im just implementing the IPN stuff for paypal and had a quick
question. I think it would be cool to write something like:
PaypalIPNHandler().onFailure(FailureHandler).onVerified(VerifiedHandler)
object FailureHandler { ... } // or case class etc
object VerifiedHandler { ... }
Im
Hey Tim,
Do default handlers actually do anything?
Why not using functions or a List[(String) = Any] (Instead of String
you may pass any type so the function signature is not so important).
This is a paradigm used in Lift a lot.
Br's,
Marius
On Oct 16, 1:36 pm, Tim Perrett [EMAIL PROTECTED]
Do default handlers actually do anything?
Right now, no they don't, I need to noodle the design to make sure
there's nothing that it would be usefull to inherit
Why not using functions or a List[(String) = Any] (Instead of String
you may pass any type so the function signature is not so
Cans inside Cans says Use a for comprehension to me:
for (r - S.request; loc - r.location; link - loc.createDefaultLink) yield
link.text
It's a few more characters, but IMHO, more readable.
On Wed, Oct 15, 2008 at 7:14 PM, Charles F. Munat [EMAIL PROTECTED] wrote:
Yes, this does help a
Wow, I've just seen this post!
Thats some sweet sugar... what's the ETA on scala 2.7.2 final and when
lift will be merging the master with the 2.7.2 branch?
IMO, its improvements like this which make great technologies like JPA
accessible - great work guys
Cheers
Tim
On 15 Oct 2008, at
well List[(String) = Any] is a list of functions that take a String
as an argument and return an Any
Assume we have two functions that we want tobe called when a failure
occurs
def f1(s: String) = ...
def f2(s: Sting) = ...
PaypalIPNHandler().onFailure(f1 _ :: f2 _ :: NIL)
We're passed here a
Thanks for the explanation Marius - that makes perfect sense. I'll
take that advice as your right, it fits the need perfectly.
If I wanted a list of functions that could have a couple of different
parameters I guess it would be:
List[(String,Int) = Any]
Or whatever, right? Also, what is the
On Oct 16, 9:33 pm, Tim Perrett [EMAIL PROTECTED] wrote:
Thanks for the explanation Marius - that makes perfect sense. I'll
take that advice as your right, it fits the need perfectly.
If I wanted a list of functions that could have a couple of different
parameters I guess it would be:
I've got a JPA Lift site and have set up a login in which the User's id
is stored in a session variable thus, as shown below.
This works just fine. The user can log in and go from page to page. But
after some random number of clicks, whoops! I'm suddenly no longer
logged in.
Hmmm. I must be
In the Loc I can do:
If( () = true, )
So I can do:
def isLoggedIn_?() = true
If(isLoggedIn_?, )
But what if I want to pass in a list of roles?
def isInRole_?(List[String]) = true
Now If complains because it expects a parameterless function.
There is probably some easy way around this,
The compiler doesn't like that at all (even after replacing : with =)
error: type mismatch;
[WARNING] found : Boolean(true)
[WARNING] required: (Long) = ?
[WARNING] def isAuthenticated_? = CurrentUserId.map(true) openOr false
[WARNING] ^
Also,
Ah, that's clever. I'll switch to that. I forget that if map works at
all, the Can is full.
I'm not sure what the problem was. I wrote some more code to fill things
in while waiting for a response, and now it's running beautifully. I'm
really liking JPA. It's rocking fast and very powerful.
Was anything like this every implemented?
On Sep 22, 12:18 pm, David Pollak [EMAIL PROTECTED]
wrote:
On Sun, Sep 21, 2008 at 5:21 PM, Charles F. Munat [EMAIL PROTECTED] wrote:
It would be useful to me to be able to reuse the Menu.builder function
to build different menus, thus:
On Thu, Oct 16, 2008 at 8:23 PM, efleming969 [EMAIL PROTECTED] wrote:
Was anything like this every implemented?
Yes.
On Sep 22, 12:18 pm, David Pollak [EMAIL PROTECTED]
wrote:
On Sun, Sep 21, 2008 at 5:21 PM, Charles F. Munat [EMAIL PROTECTED]
wrote:
It would be useful to
http://groups.google.com/group/liftweb/msg/f96d5988c4a359e9?hl=en;
David Pollak wrote:
On Thu, Oct 16, 2008 at 8:23 PM, efleming969 [EMAIL PROTECTED]
mailto:[EMAIL PROTECTED] wrote:
Was anything like this every implemented?
Yes.
On Sep 22, 12:18 pm, David Pollak
Thanks guys.
Also add an entry in the FAQ section http://www.liftweb.net/index.php/FAQ
On Oct 16, 11:21 pm, Charles F. Munat [EMAIL PROTECTED] wrote:
http://groups.google.com/group/liftweb/msg/f96d5988c4a359e9?hl=en;
David Pollak wrote:
On Thu, Oct 16, 2008 at 8:23 PM, efleming969 [EMAIL
Ah, the compiler error made me actually look at my code (doh), and here's
what I really use:
def isLoggedIn_? = currentUserIdVar.is.isDefined
I actually have a few things defined around this:
object currentUserIdVar extends SessionVar[Can[Long]](Empty)
def currentUserId =
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