On Mon, Nov 16, 2009 at 4:11 PM, David Pollak
<[email protected]> wrote:
>
>
> On Mon, Nov 16, 2009 at 3:10 PM, Kris Nuttycombe <[email protected]>
> wrote:
>>
>> On Mon, Nov 16, 2009 at 4:02 PM, David Pollak
>> <[email protected]> wrote:
>> >
>> >
>> > On Mon, Nov 16, 2009 at 2:20 PM, Kris Nuttycombe
>> > <[email protected]>
>> > wrote:
>> >>
>> >> On Mon, Nov 16, 2009 at 3:13 PM, David Pollak
>> >> <[email protected]> wrote:
>> >> >
>> >> >
>> >> > On Mon, Nov 16, 2009 at 2:12 PM, Kris Nuttycombe
>> >> > <[email protected]>
>> >> > wrote:
>> >> >>
>> >> >> Hi, all,
>> >> >>
>> >> >> I was just informed that my changes broke MetaMegaProtoUser
>> >> >> interaction. I've reverted the commit until I can get that sorted
>> >> >> out.
>> >> >
>> >> > How was it broken?
>> >>
>> >> It's something to do with how the login form is processed - at the
>> >> moment I haven't figured out anything more with that. Essentially, the
>> >> login fails silently and returns the user to the login form upon
>> >> submission.
>> >
>> > That sounds like a deeper issue with MetaProtoUser.  I'd keep your
>> > changes
>> > and see why MegaProtoUser is failing.
>>
>> Absolutely; I just figured I didn't want to leave people with broken
>> code while I figure it out since I'm not that familiar with
>> MegaProtoUser and am not sure how long that will take.
>
> Please check the code back in and get me a test case and I'll debug it.
>
> I've got about 20 tickets I'm working on right now... one more ain't gonna
> kill me. ;-)

Reverted my reversion. The test case is an easy one: login in
hellolift displays the pathology.

Thanks for your help,

Kris

>>
>> > Also, it's best that people discuss these kinds of things on list rather
>> > than contacting you privately so we can all see what's going on.
>> >
>>
>> Totally agree. I should have made that more clear in the initial email.
>>
>> Kriis
>>
>> >>
>> >> Kris
>> >>
>> >> >
>> >> >>
>> >> >> Sorry,
>> >> >>
>> >> >> Kris
>> >> >>
>> >> >> On Mon, Nov 16, 2009 at 11:27 AM, Kris Nuttycombe
>> >> >> <[email protected]> wrote:
>> >> >> > Hi, all,
>> >> >> >
>> >> >> > I have committed a number of enhancements to Loc & LocParam which
>> >> >> > involves a number of breaking changes. The changes and their
>> >> >> > rationale
>> >> >> > is listed below. Unless you have created your own subclasses of
>> >> >> > Loc
>> >> >> > or
>> >> >> > LocParam, these changes should not have any repercussions for you.
>> >> >> > If
>> >> >> > the effect of any of these changes on your particular codebase are
>> >> >> > excessively disruptive, please contact me and I will work with you
>> >> >> > to
>> >> >> > resolve the issue.
>> >> >> >
>> >> >> > Breaking Changes:
>> >> >> >
>> >> >> > 1) LocParam
>> >> >> >
>> >> >> > LocParam has been made a sealed trait to facilitate pattern
>> >> >> > matching
>> >> >> > within the Lift codebase and has had a contravariant type
>> >> >> > parameter
>> >> >> > added to its type to facilitate typesafe interactions with Loc[T].
>> >> >> > The
>> >> >> > new trait is hence LocParam[-T]. As LocParam is now a sealed
>> >> >> > trait, I
>> >> >> > have added an extension point for user-specified LocParam subtypes
>> >> >> > as
>> >> >> > UserLocParam[-T] extends LocParam[T]. Since the new type parameter
>> >> >> > is
>> >> >> > contravariant, LocParam subclasses that are applicable for any
>> >> >> > Loc[T]
>> >> >> > have the type LocParam[Any], and a type alias AnyLocParam has been
>> >> >> > added for this type.
>> >> >> >
>> >> >> > The Loc.checkProtected method now enforces type consistency
>> >> >> > between
>> >> >> > the evaluated Link[T] and the list of LocParam[T] which are used
>> >> >> > to
>> >> >> > evaluate whether the link is accessible given the specified
>> >> >> > parameters.
>> >> >> >
>> >> >> > 2) Renames
>> >> >> >
>> >> >> > Previously, the "Param" suffix was used for two unrelated purposes
>> >> >> > within Loc: first, to refer to the type parameter of the Loc, and
>> >> >> > secondly for the LocParam configuration. This overloading made the
>> >> >> > code and the API somewhat difficult to read, so the first usage
>> >> >> > has
>> >> >> > been removed resulting in the following renames:
>> >> >> >
>> >> >> > ParamType => T
>> >> >> > NullLocParams => //removed, Unit is sufficient!
>> >> >> > Loc.defaultParams => Loc.defaultValue
>> >> >> > Loc.forceParam => Loc.overrideValue
>> >> >> > Loc.foundParam => Loc.requestValue
>> >> >> > Loc.additionalKidParams => Loc.childValues
>> >> >> >
>> >> >> > After this change, all instances of the "param" name within Loc
>> >> >> > should
>> >> >> > refer to something having to do with LocParam instances.
>> >> >> >
>> >> >> > Non-Breaking Additions:
>> >> >> >
>> >> >> > case class IfValue[T](test: Box[T] => Boolean, failMsg: FailMsg)
>> >> >> > extends LocParam[T]
>> >> >> > case class UnlessValue[T](test: Box[T] => Boolean, failMsg:
>> >> >> > FailMsg)
>> >> >> > extends LocParam[T]
>> >> >> > case class TestValueAccess[T](func: Box[T] => Box[LiftResponse])
>> >> >> > extends LocParam[T]
>> >> >> >
>> >> >> > If you are using a non-Unit typed Loc, you can use these LocParam
>> >> >> > instances to enforce access rules at the value level.
>> >> >> >
>> >> >> > case class ValueTemplate[T](template: Box[T] => NodeSeq) extends
>> >> >> > LocParam[T] //per-value template selection
>> >> >> >
>> >> >> > DataLoc[T] subclass of Loc was added to facilitate the use of the
>> >> >> > new
>> >> >> > more typeful LocParam subtypes.
>> >> >> >
>> >> >> > A few changes to Link:
>> >> >> >
>> >> >> > Since Link.createLink creates a Box[Text] (and not a clickable
>> >> >> > link)
>> >> >> > a
>> >> >> > couple of methods were added to create the intermediate, unboxed
>> >> >> > values in order that subclasses can more easily manipulate the
>> >> >> > resulting
>> >> >> > path:
>> >> >> >
>> >> >> > Link.pathList(value: T): List[String] // added to facilitate
>> >> >> > creation
>> >> >> > of value-aware paths by subclasses.
>> >> >> > Link.createPath(value: T): String //creates the String
>> >> >> > representation
>> >> >> > of the path that is subsequently turned into XML and boxed by
>> >> >> > Link.createLink
>> >> >> >
>> >> >> > Again, please let me know if any of these changes cause you
>> >> >> > headaches!
>> >> >> > My hope is that much of the modified functionality has not been
>> >> >> > used
>> >> >> > by very many people yet and that as a result it's a good time to
>> >> >> > make
>> >> >> > these changes before typeful Locs get too widely used to make
>> >> >> > breaking
>> >> >> > changes.
>> >> >> >
>> >> >> > Thanks,
>> >> >> >
>> >> >> > Kris
>> >> >> >
>> >> >>
>> >> >>
>> >> >
>> >> >
>> >> >
>> >> > --
>> >> > Lift, the simply functional web framework http://liftweb.net
>> >> > Beginning Scala http://www.apress.com/book/view/1430219890
>> >> > Follow me: http://twitter.com/dpp
>> >> > Surf the harmonics
>> >> >
>> >> > >
>> >> >
>> >>
>> >>
>> >
>> >
>> >
>> > --
>> > Lift, the simply functional web framework http://liftweb.net
>> > Beginning Scala http://www.apress.com/book/view/1430219890
>> > Follow me: http://twitter.com/dpp
>> > Surf the harmonics
>> >
>> > >
>> >
>>
>>
>
>
>
> --
> Lift, the simply functional web framework http://liftweb.net
> Beginning Scala http://www.apress.com/book/view/1430219890
> Follow me: http://twitter.com/dpp
> Surf the harmonics
>
> >
>

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