[Lift] Re: scalar queries in Lift/JPA
I've never tried this on a scalar query, but a constructor expression
example should be something like this:
select new com.chas.values.AnswerCount(t.answer, count(distinct
answer)) from ...
class AnswerCount(answer: String, count: Long) {
private def nullToOption[T](v: T) = v match { case null = None case
_ = Some(v) }
def getAnswer = nullToOption(answer)
def getCount = nullToOption(count)
}
object AnswerCount {
def unapply(ac: AnswerCount): Option[(Option[String], Option[Long])]
= {
Some(ac.getAnswer, ac.getCount)
}
}
Sources:
http://edocs.bea.com/kodo/docs41/full/html/ejb3_langref.html#ejb3_langref_constructor
On Apr 23, 4:11 pm, Derek Chen-Becker dchenbec...@gmail.com wrote:
Oliver, I've never done anything like that in JPA or Hibernate. Is that
actually possible? Can you create a class instance within a query?
Derek
On Thu, Apr 23, 2009 at 2:47 PM, Charles F. Munat c...@munat.com wrote:
I'm not really sure how I would go about this, but I'll think about it
when I have time to get back to that code.
Thanks, Oliver.
Chas.
Oliver Lambert wrote:
Is there anything to stop you defining an class/entity {answer: String,
countAnswer: Int} and to directly create it from JPA (of course, it's
read only).
On Wed, Apr 22, 2009 at 9:36 AM, Charles F. Munat c...@munat.com
mailto:c...@munat.com wrote:
I was thinking tuples, but that didn't work. I'll try your
suggestion.
BTW, for anyone reading along, I forgot the group by clause in the
query
below.
Chas.
Derek Chen-Becker wrote:
I think that the type would be Array[Any] and you'll get one
String and
Int for each row.
Derek
On Tue, Apr 21, 2009 at 3:37 PM, Charles F. Munat c...@munat.com
mailto:c...@munat.com
mailto:c...@munat.com mailto:c...@munat.com wrote:
Anyone have a quick example of how to run a scalar query in
JPA? I can't
find anything in the JPA demo.
I have this query:
select t.answer, count(distinct answer) from Vote t where
t.poll = :poll
order by t.answer
but how do I call it? I normally do:
Model.createNamedQuery[...](findVoteCountAnswersByPoll,
poll -
poll).findAll
But what is the type? And how do I get the results back out?
I know I did this once before somewhere, but I can't remember
where and
I can't find it.
Thanks!
Chas.
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[Lift] Re: Binding Radio Button
Thanks Timothy, but can you give an example of checkbox, because no matter what I try, the binding function of checkbox doesn't seem to be called when checkbox is set. I tried some trivious binding function, but it's no effect still. --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to liftweb@googlegroups.com To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/liftweb?hl=en -~--~~~~--~~--~--~---
[Lift] Re: Binding Radio Button
The example from the lift book doesn't work.
Listing 4.4: A checkbox example
SHtml.checkbox(false, if (_) frobnicate(), Full(snazzy), class -
woohoo)
and mine is
bind(entry, xhtml,
test_mode - SHtml.checkbox(false, if (_) option_list
= option_list ::: List(FlagEnum.TEST_MODE), id-test_mode))
doesn't work.
even with a simpler one (no if checking, and no list appending)
doesn't work.
bind(entry, xhtml,
test_mode - SHtml.checkbox(false, {x:Boolean =
option_list
= List(FlagEnum.TEST_MODE)}, id-test_mode))
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[Lift] Re: Binding Radio Button
A checkbox should look like this:
var booleanThing: Boolean = false
def another(xhtml: NodeSeq): NodeSeq = {
bind(c,xhtml,
checkbox - SHtml.checkbox(booleanThing, booleanThing = _) %
(class - myCSSclass)
)
}
Cheers, Tim
On Apr 24, 2:16 am, sailormoo...@gmail.com sailormoo...@gmail.com
wrote:
The example from the lift book doesn't work.
Listing 4.4: A checkbox example
SHtml.checkbox(false, if (_) frobnicate(), Full(snazzy), class -
woohoo)
and mine is
bind(entry, xhtml,
test_mode - SHtml.checkbox(false, if (_) option_list
= option_list ::: List(FlagEnum.TEST_MODE), id-test_mode))
doesn't work.
even with a simpler one (no if checking, and no list appending)
doesn't work.
bind(entry, xhtml,
test_mode - SHtml.checkbox(false, {x:Boolean =
option_list
= List(FlagEnum.TEST_MODE)}, id-test_mode))
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[Lift] Re: Question from a newbie: how to get a pdf document via submit button
Your confussing things I think. InMemoryResponse is a HTTP response designed for use in conjunction with DispatchPF. If your getting the PDF dynamically then you'll need to read the PDF either into memory and return it from a url or do a streaming response - checkout my blog post here about using StreamingResponse: http://is.gd/oCtt So, lets assume that you made a dispatchPF so that your pdf was dynamically served from: /download/pdf/someId Then from your snippet you can either just manually link to that URL if you so wish. Does that help? Cheers, Tim On Apr 24, 8:50 am, maku martin.kuhn...@gmail.com wrote: Hi, I would like to get a PDF document (produced via IText) from my app. It should be triggered via a submit button The PDF document should be presented in a separate browser window. In the lift book there is an example how to do this via a link and with mapping a request via LiftRules.dispatch.append to an InMemoryResponse (which works as expected). When I want to trigger this process via a submit button I can imagine to call a function in the form binding of the submit button (in the snippet) . The function would be able to redirectTo the request mapping which returns an InMemoryResponse. To present the PDF in an new window / tab, I would define the submit button with submit(PDF, pdf,(onClick,document.forms [0].target='_blank';) My questions: - Is this a proper solution? - Would it be possible to return the InMemoryRespone directly from the snippet (without the need to define a special request behaviour and to perform the redirectTo) Could anybody give me a hint? TIA Regards, Martin --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to liftweb@googlegroups.com To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/liftweb?hl=en -~--~~~~--~~--~--~---
[Lift] Question from a newbie: how to get a pdf document via submit button
Hi, I would like to get a PDF document (produced via IText) from my app. It should be triggered via a submit button The PDF document should be presented in a separate browser window. In the lift book there is an example how to do this via a link and with mapping a request via LiftRules.dispatch.append to an InMemoryResponse (which works as expected). When I want to trigger this process via a submit button I can imagine to call a function in the form binding of the submit button (in the snippet) . The function would be able to redirectTo the request mapping which returns an InMemoryResponse. To present the PDF in an new window / tab, I would define the submit button with submit(PDF, pdf,(onClick,document.forms [0].target='_blank';) My questions: - Is this a proper solution? - Would it be possible to return the InMemoryRespone directly from the snippet (without the need to define a special request behaviour and to perform the redirectTo) Could anybody give me a hint? TIA Regards, Martin --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to liftweb@googlegroups.com To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/liftweb?hl=en -~--~~~~--~~--~--~---
[Lift] Thoughts on lift marketing [was A Lift preso]
Thoughts about that presentation[1] (german): The slides indicate that the presentation was for the W-JAX 2008 conference (Nov 2008), so it's a bit older. While most of the stuff is nothing special (except that he left out JPA in the persistence slides - was probably too new for the submission deadline), I noted the conclusions (translated): Negative (p. 118): * no stable APIS * proprietary * [part of the] hype around Scala * One man show * [Steep] learning curve [because of] Scala * [Missing] Scala tooling * No roadmap (for reference: the positive (p. 110) are: [good] use case for Scala, close to HTTP, elegant because of Scala, and WOW effect) And after some words from David Pollak (english, p. 122), the applicability (p. 124): * playground for Scala friends * Initial effort [required] for non-Scala developers: high Just what went through my mind when I read it (reordered): * no stable APIS: Well, that was before 1.0 which should have been expressed more clearly, but ... * proprietary: Not more than any other OS lib out there... (and in the generally accepted definition in the SE world, this statement is wrong IMHO..) * [part of the] hype around Scala: no comment * [Steep] learning curve [because of] Scala: no comment * [Missing] Scala tooling: This is being rectified in other parts of the Scala community and I think it's improving a lot recently... * One man show no roadmap: both points are actually not true, or definitely not true anymore. But... I think that to increase 'enterprise' adoption (meaning not just bleeding-edge/curious/driven/ self-reliant coders, or enterprises where the final decision is done by someone not very close to code), it would help if lift would market it's adoption among BigNames and big scale projects a bit more, and also show (on the homepage) that it has a highly committed team and a stable roadmap. I was pleased to find the quote from Michael Galpin, eBay on the front page (and the other quotes), but I think a 'adopted by/used in' link to the applications/companies that are using it (with Logos where possible) would help a lot as well (Where exactly is that list of life applications that is polled every once in a while on the mailing list). And quotes about the responsiveness and helpfulness of the mailing list would also deserve a special mention (on a special page accessible from the homepage). A site that I really like in terms of marketing effort: http://terracotta.org/ . ok, it's backed by a company, but it's still quite clean and markets the product really well. I know that for most coders/developers/engineers looking to assess a good technology, this is probably perceived as shadows and dust, but for someone that is very likely betting a part of his yearly salary bonus on the decision (because the cause loss/gain in time/money could make or break his goals/carreer/raise), those considerations are very important. Think of it simply as prudent marketing. The quality of Lift's code and community *is* amazing. Let's just make it as easy as possible for people to recognize that. On a related note please don't forget one of the factors why Ruby on Rails had an immense success as a framework: DHH is a very loud voice talking about a framework and as a result this attracted a lot of attention to it. IIRC the interesting side effect was that because of the excellent 'marketing' and the attracted attention, the framework actually attracted additional developer horsepower and matured a lot faster. And about the 'playground for Scala devs high required initial investment because of Scala', maybe it wouldn't hurt to defuse that a bit as well. I really like the statement of Martin Odersky: In the end it's just another jar on your classpath (ok, it's a bit more than that, but...). Or maybe some excerpts from the mailing list/other adopters about experiences while switching to Lift with no prior Scala experience. True, that's basically something that applies to Scala in the large and not just Lift, but I think that Lift is for Scala what Rails is for Ruby: the flagship product and main attraction magnet. Because Lift (and also Rails) is a framework used to solve problems that a lot of people encounter in daily life (webapps). I personally love what I can do with Scala for other problem domains, but those domains are less close to what most developers work on on a daily basis. Oh, and I think that for the most part the marketing organized in terms of conferences, papers, and books is pretty thorough. Would be nice to see that in a news section to see what is going on with lift. Just some thoughts. Thanks for the amazing work, Daniel [1] http://www.slideshare.net/itemis/lift-mit-scala-ein-befrderungsmittel... On Apr 23, 8:52 pm, David Pollak feeder.of.the.be...@gmail.com wrote: http://www.slideshare.net/itemis/lift-mit-scala-ein-befrderungsmittel... -- Lift, the simply functional web frameworkhttp://liftweb.net Beginning
[Lift] Re: Question from a newbie: how to get a pdf document via submit button
Hi Tim, thanks for responding. I think I don't know enough. O.k. I've to use StreamingResponse. What I would like to know is how can I set the StreamingResponse instance as response served by lift when my snippet handles the request triggered from the submit button. In the pure servlet tech I would write to HttpServletResponse -- ... response.getOutputStream().write(bytes); TIA Regards, Martin On Apr 24, 11:29 am, Timothy Perrett timo...@getintheloop.eu wrote: Your confussing things I think. InMemoryResponse is a HTTP response designed for use in conjunction with DispatchPF. If your getting the PDF dynamically then you'll need to read the PDF either into memory and return it from a url or do a streaming response - checkout my blog post here about using StreamingResponse:http://is.gd/oCtt So, lets assume that you made a dispatchPF so that your pdf was dynamically served from: /download/pdf/someId Then from your snippet you can either just manually link to that URL if you so wish. Does that help? Cheers, Tim On Apr 24, 8:50 am, maku martin.kuhn...@gmail.com wrote: Hi, I would like to get a PDF document (produced via IText) from my app. It should be triggered via a submit button The PDF document should be presented in a separate browser window. In the lift book there is an example how to do this via a link and with mapping a request via LiftRules.dispatch.append to an InMemoryResponse (which works as expected). When I want to trigger this process via a submit button I can imagine to call a function in the form binding of the submit button (in the snippet) . The function would be able to redirectTo the request mapping which returns an InMemoryResponse. To present the PDF in an new window / tab, I would define the submit button with submit(PDF, pdf,(onClick,document.forms [0].target='_blank';) My questions: - Is this a proper solution? - Would it be possible to return the InMemoryRespone directly from the snippet (without the need to define a special request behaviour and to perform the redirectTo) Could anybody give me a hint? TIA Regards, Martin --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to liftweb@googlegroups.com To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/liftweb?hl=en -~--~~~~--~~--~--~---
[Lift] Re: Binding Radio Button
What doesn't work about the example? Do you get a compilation error, or it
just doesn't do what you want?
Derek
On Thu, Apr 23, 2009 at 7:16 PM, sailormoo...@gmail.com
sailormoo...@gmail.com wrote:
The example from the lift book doesn't work.
Listing 4.4: A checkbox example
SHtml.checkbox(false, if (_) frobnicate(), Full(snazzy), class -
woohoo)
and mine is
bind(entry, xhtml,
test_mode - SHtml.checkbox(false, if (_) option_list
= option_list ::: List(FlagEnum.TEST_MODE), id-test_mode))
doesn't work.
even with a simpler one (no if checking, and no list appending)
doesn't work.
bind(entry, xhtml,
test_mode - SHtml.checkbox(false, {x:Boolean =
option_list
= List(FlagEnum.TEST_MODE)}, id-test_mode))
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[Lift] Re: Thoughts on lift marketing [was A Lift preso]
Mates, Forget about that old presentation! I have seen it live and it is just not relevant. There will be ab Scala Day at W-JAX 09 (11 Nov) and I will give a *very* positive talk there. Cheers Heiko On 24/04/2009, Daniel Mueller dan.in.a.bot...@gmail.com wrote: Thoughts about that presentation[1] (german): The slides indicate that the presentation was for the W-JAX 2008 conference (Nov 2008), so it's a bit older. While most of the stuff is nothing special (except that he left out JPA in the persistence slides - was probably too new for the submission deadline), I noted the conclusions (translated): Negative (p. 118): * no stable APIS * proprietary * [part of the] hype around Scala * One man show * [Steep] learning curve [because of] Scala * [Missing] Scala tooling * No roadmap (for reference: the positive (p. 110) are: [good] use case for Scala, close to HTTP, elegant because of Scala, and WOW effect) And after some words from David Pollak (english, p. 122), the applicability (p. 124): * playground for Scala friends * Initial effort [required] for non-Scala developers: high Just what went through my mind when I read it (reordered): * no stable APIS: Well, that was before 1.0 which should have been expressed more clearly, but ... * proprietary: Not more than any other OS lib out there... (and in the generally accepted definition in the SE world, this statement is wrong IMHO..) * [part of the] hype around Scala: no comment * [Steep] learning curve [because of] Scala: no comment * [Missing] Scala tooling: This is being rectified in other parts of the Scala community and I think it's improving a lot recently... * One man show no roadmap: both points are actually not true, or definitely not true anymore. But... I think that to increase 'enterprise' adoption (meaning not just bleeding-edge/curious/driven/ self-reliant coders, or enterprises where the final decision is done by someone not very close to code), it would help if lift would market it's adoption among BigNames and big scale projects a bit more, and also show (on the homepage) that it has a highly committed team and a stable roadmap. I was pleased to find the quote from Michael Galpin, eBay on the front page (and the other quotes), but I think a 'adopted by/used in' link to the applications/companies that are using it (with Logos where possible) would help a lot as well (Where exactly is that list of life applications that is polled every once in a while on the mailing list). And quotes about the responsiveness and helpfulness of the mailing list would also deserve a special mention (on a special page accessible from the homepage). A site that I really like in terms of marketing effort: http://terracotta.org/ . ok, it's backed by a company, but it's still quite clean and markets the product really well. I know that for most coders/developers/engineers looking to assess a good technology, this is probably perceived as shadows and dust, but for someone that is very likely betting a part of his yearly salary bonus on the decision (because the cause loss/gain in time/money could make or break his goals/carreer/raise), those considerations are very important. Think of it simply as prudent marketing. The quality of Lift's code and community *is* amazing. Let's just make it as easy as possible for people to recognize that. On a related note please don't forget one of the factors why Ruby on Rails had an immense success as a framework: DHH is a very loud voice talking about a framework and as a result this attracted a lot of attention to it. IIRC the interesting side effect was that because of the excellent 'marketing' and the attracted attention, the framework actually attracted additional developer horsepower and matured a lot faster. And about the 'playground for Scala devs high required initial investment because of Scala', maybe it wouldn't hurt to defuse that a bit as well. I really like the statement of Martin Odersky: In the end it's just another jar on your classpath (ok, it's a bit more than that, but...). Or maybe some excerpts from the mailing list/other adopters about experiences while switching to Lift with no prior Scala experience. True, that's basically something that applies to Scala in the large and not just Lift, but I think that Lift is for Scala what Rails is for Ruby: the flagship product and main attraction magnet. Because Lift (and also Rails) is a framework used to solve problems that a lot of people encounter in daily life (webapps). I personally love what I can do with Scala for other problem domains, but those domains are less close to what most developers work on on a daily basis. Oh, and I think that for the most part the marketing organized in terms of conferences, papers, and books is pretty thorough. Would be nice to see that in a news section to see what is going on with lift. Just some thoughts. Thanks for the amazing work,
[Lift] Re: Thoughts on lift marketing [was A Lift preso]
On Fri, Apr 24, 2009 at 3:27 AM, Daniel Mueller dan.in.a.bot...@gmail.comwrote: Thoughts about that presentation[1] (german): The slides indicate that the presentation was for the W-JAX 2008 conference (Nov 2008), so it's a bit older. While most of the stuff is nothing special (except that he left out JPA in the persistence slides - was probably too new for the submission deadline), I noted the conclusions (translated): Negative (p. 118): * no stable APIS * proprietary * [part of the] hype around Scala * One man show * [Steep] learning curve [because of] Scala * [Missing] Scala tooling * No roadmap (for reference: the positive (p. 110) are: [good] use case for Scala, close to HTTP, elegant because of Scala, and WOW effect) And after some words from David Pollak (english, p. 122), the applicability (p. 124): * playground for Scala friends * Initial effort [required] for non-Scala developers: high Just what went through my mind when I read it (reordered): * no stable APIS: Well, that was before 1.0 which should have been expressed more clearly, but ... * proprietary: Not more than any other OS lib out there... (and in the generally accepted definition in the SE world, this statement is wrong IMHO..) * [part of the] hype around Scala: no comment * [Steep] learning curve [because of] Scala: no comment * [Missing] Scala tooling: This is being rectified in other parts of the Scala community and I think it's improving a lot recently... * One man show no roadmap: both points are actually not true, or definitely not true anymore. But... I think that to increase 'enterprise' adoption (meaning not just bleeding-edge/curious/driven/ self-reliant coders, or enterprises where the final decision is done by someone not very close to code), it would help if lift would market it's adoption among BigNames and big scale projects a bit more, and also show (on the homepage) that it has a highly committed team and a stable roadmap. I was pleased to find the quote from Michael Galpin, eBay on the front page (and the other quotes), but I think a 'adopted by/used in' link to the applications/companies that are using it (with Logos where possible) would help a lot as well (Where exactly is that list of life applications that is polled every once in a while on the mailing list). And quotes about the responsiveness and helpfulness of the mailing list would also deserve a special mention (on a special page accessible from the homepage). A site that I really like in terms of marketing effort: http://terracotta.org/ . ok, it's backed by a company, but it's still quite clean and markets the product really well. I know that for most coders/developers/engineers looking to assess a good technology, this is probably perceived as shadows and dust, but for someone that is very likely betting a part of his yearly salary bonus on the decision (because the cause loss/gain in time/money could make or break his goals/carreer/raise), those considerations are very important. Think of it simply as prudent marketing. The quality of Lift's code and community *is* amazing. Let's just make it as easy as possible for people to recognize that. On a related note please don't forget one of the factors why Ruby on Rails had an immense success as a framework: DHH is a very loud voice talking about a framework and as a result this attracted a lot of attention to it. IIRC the interesting side effect was that because of the excellent 'marketing' and the attracted attention, the framework actually attracted additional developer horsepower and matured a lot faster. And about the 'playground for Scala devs high required initial investment because of Scala', maybe it wouldn't hurt to defuse that a bit as well. I really like the statement of Martin Odersky: In the end it's just another jar on your classpath (ok, it's a bit more than that, but...). Or maybe some excerpts from the mailing list/other adopters about experiences while switching to Lift with no prior Scala experience. True, that's basically something that applies to Scala in the large and not just Lift, but I think that Lift is for Scala what Rails is for Ruby: the flagship product and main attraction magnet. Because Lift (and also Rails) is a framework used to solve problems that a lot of people encounter in daily life (webapps). I personally love what I can do with Scala for other problem domains, but those domains are less close to what most developers work on on a daily basis. Oh, and I think that for the most part the marketing organized in terms of conferences, papers, and books is pretty thorough. Would be nice to see that in a news section to see what is going on with lift. Just some thoughts. Daniel, Thanks for your translation and your thoughts. My German is pretty weak (my grandparents used to speak German when they didn't want to to understand what they were saying, so my ability to understand spoken
[Lift] Re: Feedback on screen cast, please
Very very nice ... and that is something that would probably keep audience with the mouth open for a few minutes. However it's just like showing the dog a bone :) ... people would inherently wonder so maybe a bit of more explanations on the wiring between the global chat actor and the Comet actor would be helpful. I know it's trivial stuff but still I think it worth it. On a slightly different topic ... ListenerManager model ... I wonder if we can do it simpler then call updateMessages and then have lift call the createUpdate. For really simple case perhaps a publishMessage (a_message) would be easier and would avoid keeping the private state in the actor.I know it's pretty much classical pattern in the way it is right now ... but maybe ... just maybe we can simplify it a bit more. Br's, Marius On Apr 24, 6:50 pm, David Pollak feeder.of.the.be...@gmail.com wrote: Folks, I did a draft of a screencast for a real-time chat app. It's athttp://tunaforcats.com/LiftScreenCast.avi I'd like to get some critical feedback on it so I can improve it. Thanks, David PS -- What's the best output format? AVI, QuickTime, Flash? -- Lift, the simply functional web frameworkhttp://liftweb.net Beginning Scalahttp://www.apress.com/book/view/1430219890 Follow me:http://twitter.com/dpp Git some:http://github.com/dpp --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to liftweb@googlegroups.com To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/liftweb?hl=en -~--~~~~--~~--~--~---
[Lift] Feedback on screen cast, please
Folks, I did a draft of a screencast for a real-time chat app. It's at http://tunaforcats.com/LiftScreenCast.avi I'd like to get some critical feedback on it so I can improve it. Thanks, David PS -- What's the best output format? AVI, QuickTime, Flash? -- Lift, the simply functional web framework http://liftweb.net Beginning Scala http://www.apress.com/book/view/1430219890 Follow me: http://twitter.com/dpp Git some: http://github.com/dpp --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to liftweb@googlegroups.com To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/liftweb?hl=en -~--~~~~--~~--~--~---
[Lift] Re: Feedback on screen cast, please
I prefer QuickTime. Thanks, Bradford On Apr 24, 12:21 pm, marius d. marius.dan...@gmail.com wrote: Very very nice ... and that is something that would probably keep audience with the mouth open for a few minutes. However it's just like showing the dog a bone :) ... people would inherently wonder so maybe a bit of more explanations on the wiring between the global chat actor and the Comet actor would be helpful. I know it's trivial stuff but still I think it worth it. On a slightly different topic ... ListenerManager model ... I wonder if we can do it simpler then call updateMessages and then have lift call the createUpdate. For really simple case perhaps a publishMessage (a_message) would be easier and would avoid keeping the private state in the actor.I know it's pretty much classical pattern in the way it is right now ... but maybe ... just maybe we can simplify it a bit more. Br's, Marius On Apr 24, 6:50 pm, David Pollak feeder.of.the.be...@gmail.com wrote: Folks, I did a draft of a screencast for a real-time chat app. It's athttp://tunaforcats.com/LiftScreenCast.avi I'd like to get some critical feedback on it so I can improve it. Thanks, David PS -- What's the best output format? AVI, QuickTime, Flash? -- Lift, the simply functional web frameworkhttp://liftweb.net Beginning Scalahttp://www.apress.com/book/view/1430219890 Follow me:http://twitter.com/dpp Git some:http://github.com/dpp --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to liftweb@googlegroups.com To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/liftweb?hl=en -~--~~~~--~~--~--~---
[Lift] Re: Feedback on screen cast, please
The fact it's real-time is excellent. It's the right amount of info/code to whet someone's appetite to dive into Lift a bit more. And since the amount of code is small, someone would be able to follow along easily. The areas of improvement would be upping to production levels a bit. The PeepCode screencasts are what come to mind as a standard to aspire to. Nice stuff. I've been knocking the idea around with Derek and Marius for screencasts. I think it's a logical extension of the book. Ty (I've never used Vista, so that's what it looks like :) On Apr 24, 1:53 pm, bradford fingerm...@gmail.com wrote: I prefer QuickTime. Thanks, Bradford On Apr 24, 12:21 pm, marius d. marius.dan...@gmail.com wrote: Very very nice ... and that is something that would probably keep audience with the mouth open for a few minutes. However it's just like showing the dog a bone :) ... people would inherently wonder so maybe a bit of more explanations on the wiring between the global chat actor and the Comet actor would be helpful. I know it's trivial stuff but still I think it worth it. On a slightly different topic ... ListenerManager model ... I wonder if we can do it simpler then call updateMessages and then have lift call the createUpdate. For really simple case perhaps a publishMessage (a_message) would be easier and would avoid keeping the private state in the actor.I know it's pretty much classical pattern in the way it is right now ... but maybe ... just maybe we can simplify it a bit more. Br's, Marius On Apr 24, 6:50 pm, David Pollak feeder.of.the.be...@gmail.com wrote: Folks, I did a draft of a screencast for a real-time chat app. It's athttp://tunaforcats.com/LiftScreenCast.avi I'd like to get some critical feedback on it so I can improve it. Thanks, David PS -- What's the best output format? AVI, QuickTime, Flash? -- Lift, the simply functional web frameworkhttp://liftweb.net Beginning Scalahttp://www.apress.com/book/view/1430219890 Follow me:http://twitter.com/dpp Git some:http://github.com/dpp --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to liftweb@googlegroups.com To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/liftweb?hl=en -~--~~~~--~~--~--~---
[Lift] Re: Question from a newbie: how to get a pdf document via submit button
Martin,
You need to write a DispatchPF and put that in your boot.scala file.
e.g
LiftRules.dispatch.append {
case Req(my :: path :: Nil, pdf, GetRequest) = // do
steaming response stuff here
}
Does that help?
Cheers, Tim
On Apr 24, 12:22 pm, maku martin.kuhn...@gmail.com wrote:
Hi Tim,
thanks for responding.
I think I don't know enough.
O.k. I've to use StreamingResponse. What I would like to know is how
can I set the StreamingResponse instance as response served by lift
when my snippet handles the request triggered from the submit button.
In the pure servlet tech I would write to HttpServletResponse -- ...
response.getOutputStream().write(bytes);
TIA
Regards, Martin
On Apr 24, 11:29 am, Timothy Perrett timo...@getintheloop.eu wrote:
Your confussing things I think. InMemoryResponse is a HTTP response
designed for use in conjunction with DispatchPF.
If your getting the PDF dynamically then you'll need to read the PDF
either into memory and return it from a url or do a streaming response
- checkout my blog post here about using StreamingResponse:http://is.gd/oCtt
So, lets assume that you made a dispatchPF so that your pdf was
dynamically served from:
/download/pdf/someId
Then from your snippet you can either just manually link to that URL
if you so wish.
Does that help?
Cheers, Tim
On Apr 24, 8:50 am, maku martin.kuhn...@gmail.com wrote:
Hi,
I would like to get a PDF document (produced via IText) from my app.
It should be triggered via a submit button
The PDF document should be presented in a separate browser window.
In the lift book there is an example how to do this via a link and
with mapping a request via LiftRules.dispatch.append to an
InMemoryResponse (which works as expected).
When I want to trigger this process via a submit button I can imagine
to call a function in the form binding of the submit button (in the
snippet) . The function would be able to redirectTo the request
mapping which returns an InMemoryResponse.
To present the PDF in an new window / tab, I would define the submit
button with submit(PDF, pdf,(onClick,document.forms
[0].target='_blank';)
My questions:
- Is this a proper solution?
- Would it be possible to return the InMemoryRespone directly from the
snippet (without the need to define a special request behaviour and
to perform the redirectTo)
Could anybody give me a hint?
TIA
Regards,
Martin
--~--~-~--~~~---~--~~
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Lift group.
To post to this group, send email to liftweb@googlegroups.com
To unsubscribe from this group, send email to
liftweb+unsubscr...@googlegroups.com
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[Lift] Re: Feedback on screen cast, please
Very nice. I don't think it matters whether it's AVI or Flash, but it would definitely help to pick a good codec for screencasts so that it's not a 200MB file. You might even want to look at Wink: http://www.debugmode.com/wink/ It does isolated screenshots, but in many cases that's clearer than a lossy video codec. Derek On Fri, Apr 24, 2009 at 9:50 AM, David Pollak feeder.of.the.be...@gmail.com wrote: Folks, I did a draft of a screencast for a real-time chat app. It's at http://tunaforcats.com/LiftScreenCast.avi I'd like to get some critical feedback on it so I can improve it. Thanks, David PS -- What's the best output format? AVI, QuickTime, Flash? -- Lift, the simply functional web framework http://liftweb.net Beginning Scala http://www.apress.com/book/view/1430219890 Follow me: http://twitter.com/dpp Git some: http://github.com/dpp --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to liftweb@googlegroups.com To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/liftweb?hl=en -~--~~~~--~~--~--~---
[Lift] Re: Feedback on screen cast, please
Oh and trait names were not very visible after code completion due to net bean's coloring ... :( Br's, Marius On Apr 24, 7:21 pm, marius d. marius.dan...@gmail.com wrote: Very very nice ... and that is something that would probably keep audience with the mouth open for a few minutes. However it's just like showing the dog a bone :) ... people would inherently wonder so maybe a bit of more explanations on the wiring between the global chat actor and the Comet actor would be helpful. I know it's trivial stuff but still I think it worth it. On a slightly different topic ... ListenerManager model ... I wonder if we can do it simpler then call updateMessages and then have lift call the createUpdate. For really simple case perhaps a publishMessage (a_message) would be easier and would avoid keeping the private state in the actor.I know it's pretty much classical pattern in the way it is right now ... but maybe ... just maybe we can simplify it a bit more. Br's, Marius On Apr 24, 6:50 pm, David Pollak feeder.of.the.be...@gmail.com wrote: Folks, I did a draft of a screencast for a real-time chat app. It's athttp://tunaforcats.com/LiftScreenCast.avi I'd like to get some critical feedback on it so I can improve it. Thanks, David PS -- What's the best output format? AVI, QuickTime, Flash? -- Lift, the simply functional web frameworkhttp://liftweb.net Beginning Scalahttp://www.apress.com/book/view/1430219890 Follow me:http://twitter.com/dpp Git some:http://github.com/dpp --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to liftweb@googlegroups.com To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/liftweb?hl=en -~--~~~~--~~--~--~---
[Lift] Re: Question from a newbie: how to get a pdf document via submit button
A snippet, by definition, returns a scala.xml.NodeSeq, so there's not a
direct way to do it. I haven't tested the code, but you may be able to get
away with using the ResponseShortcutException object to force a particular
response like so:
def mySnippet (...) ... {
def doSubmit () {
...
val myResponse = InMemoryResponse(...)
throw ResponseShortcutException.shortcutResponse(myResponse)
}
...
}
Lift will catch the exception and (I think) use whatever LiftResponse has
been set to send back to the user. I'm not confident at all that this will
work, but it might :)
Derek
On Fri, Apr 24, 2009 at 1:07 PM, maku martin.kuhn...@gmail.com wrote:
Tim,
this doesn't help.
It is exactly the solution I use until now (and which I tried to
explain in my first post). When I do it in this way how can I call it
via a submit button. Please remember: I want to activate the pdf
showing function via a submit button.
The solution I use until now is:
1) Defining a special request handling like you mentioned in your
last post (LiftRules.dispatch.append)
2) Performing a post request after pressing a submit button which call
a method in my snippet.
3) In my snippet I call a function which performs a REDIRECT to
exactly the path defined in LiftRules.dispatch.apppend
4) Returning the PDF
What I would want to know is:
Is it possible to do it simpler? Like in a pure servlet solution (or
like I do it in JSF): I write the bytes directly to my
HttpServletResponse.
And my main question is: how can I do this from the snippet.
Regards,
Martin
On 24 Apr., 20:20, Timothy Perrett timo...@getintheloop.eu wrote:
Martin,
You need to write a DispatchPF and put that in your boot.scala file.
e.g
LiftRules.dispatch.append {
case Req(my :: path :: Nil, pdf, GetRequest) = // do
steaming response stuff here
}
Does that help?
Cheers, Tim
On Apr 24, 12:22 pm, maku martin.kuhn...@gmail.com wrote:
Hi Tim,
thanks for responding.
I think I don't know enough.
O.k. I've to use StreamingResponse. What I would like to know is how
can I set the StreamingResponse instance as response served by lift
when my snippet handles the request triggered from the submit button.
In the pure servlet tech I would write to HttpServletResponse -- ...
response.getOutputStream().write(bytes);
TIA
Regards, Martin
On Apr 24, 11:29 am, Timothy Perrett timo...@getintheloop.eu wrote:
Your confussing things I think. InMemoryResponse is a HTTP response
designed for use in conjunction with DispatchPF.
If your getting the PDF dynamically then you'll need to read the PDF
either into memory and return it from a url or do a streaming
response
- checkout my blog post here about using StreamingResponse:
http://is.gd/oCtt
So, lets assume that you made a dispatchPF so that your pdf was
dynamically served from:
/download/pdf/someId
Then from your snippet you can either just manually link to that URL
if you so wish.
Does that help?
Cheers, Tim
On Apr 24, 8:50 am, maku martin.kuhn...@gmail.com wrote:
Hi,
I would like to get a PDF document (produced via IText) from my
app.
It should be triggered via a submit button
The PDF document should be presented in a separate browser window.
In the lift book there is an example how to do this via a link and
with mapping a request via LiftRules.dispatch.append to an
InMemoryResponse (which works as expected).
When I want to trigger this process via a submit button I can
imagine
to call a function in the form binding of the submit button (in
the
snippet) . The function would be able to redirectTo the request
mapping which returns an InMemoryResponse.
To present the PDF in an new window / tab, I would define the
submit
button with submit(PDF, pdf,(onClick,document.forms
[0].target='_blank';)
My questions:
- Is this a proper solution?
- Would it be possible to return the InMemoryRespone directly from
the
snippet (without the need to define a special request behaviour
and
to perform the redirectTo)
Could anybody give me a hint?
TIA
Regards,
Martin
--~--~-~--~~~---~--~~
You received this message because you are subscribed to the Google Groups
Lift group.
To post to this group, send email to liftweb@googlegroups.com
To unsubscribe from this group, send email to
liftweb+unsubscr...@googlegroups.com
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[Lift] Re: Question from a newbie: how to get a pdf document via submit button
Martin,
You now have all the information to complete this solution - I will
continue to provide help, however the best way forward is for you to
do some research in the list archive and try writing some code :-)
If you post some code that doesn't work I'll tell you how to fix it or
improve it, but I won't write it for you unfortunatly.
Cheers
Tim
On Apr 24, 8:07 pm, maku martin.kuhn...@gmail.com wrote:
Tim,
this doesn't help.
It is exactly the solution I use until now (and which I tried to
explain in my first post). When I do it in this way how can I call it
via a submit button. Please remember: I want to activate the pdf
showing function via a submit button.
The solution I use until now is:
1) Defining a special request handling like you mentioned in your
last post (LiftRules.dispatch.append)
2) Performing a post request after pressing a submit button which call
a method in my snippet.
3) In my snippet I call a function which performs a REDIRECT to
exactly the path defined in LiftRules.dispatch.apppend
4) Returning the PDF
What I would want to know is:
Is it possible to do it simpler? Like in a pure servlet solution (or
like I do it in JSF): I write the bytes directly to my
HttpServletResponse.
And my main question is: how can I do this from the snippet.
Regards,
Martin
On 24 Apr., 20:20, Timothy Perrett timo...@getintheloop.eu wrote:
Martin,
You need to write a DispatchPF and put that in your boot.scala file.
e.g
LiftRules.dispatch.append {
case Req(my :: path :: Nil, pdf, GetRequest) = // do
steaming response stuff here
}
Does that help?
Cheers, Tim
On Apr 24, 12:22 pm, maku martin.kuhn...@gmail.com wrote:
Hi Tim,
thanks for responding.
I think I don't know enough.
O.k. I've to use StreamingResponse. What I would like to know is how
can I set the StreamingResponse instance as response served by lift
when my snippet handles the request triggered from the submit button.
In the pure servlet tech I would write to HttpServletResponse -- ...
response.getOutputStream().write(bytes);
TIA
Regards, Martin
On Apr 24, 11:29 am, Timothy Perrett timo...@getintheloop.eu wrote:
Your confussing things I think. InMemoryResponse is a HTTP response
designed for use in conjunction with DispatchPF.
If your getting the PDF dynamically then you'll need to read the PDF
either into memory and return it from a url or do a streaming response
- checkout my blog post here about using
StreamingResponse:http://is.gd/oCtt
So, lets assume that you made a dispatchPF so that your pdf was
dynamically served from:
/download/pdf/someId
Then from your snippet you can either just manually link to that URL
if you so wish.
Does that help?
Cheers, Tim
On Apr 24, 8:50 am, maku martin.kuhn...@gmail.com wrote:
Hi,
I would like to get a PDF document (produced via IText) from my app.
It should be triggered via a submit button
The PDF document should be presented in a separate browser window.
In the lift book there is an example how to do this via a link and
with mapping a request via LiftRules.dispatch.append to an
InMemoryResponse (which works as expected).
When I want to trigger this process via a submit button I can imagine
to call a function in the form binding of the submit button (in the
snippet) . The function would be able to redirectTo the request
mapping which returns an InMemoryResponse.
To present the PDF in an new window / tab, I would define the submit
button with submit(PDF, pdf,(onClick,document.forms
[0].target='_blank';)
My questions:
- Is this a proper solution?
- Would it be possible to return the InMemoryRespone directly from the
snippet (without the need to define a special request behaviour and
to perform the redirectTo)
Could anybody give me a hint?
TIA
Regards,
Martin
--~--~-~--~~~---~--~~
You received this message because you are subscribed to the Google Groups
Lift group.
To post to this group, send email to liftweb@googlegroups.com
To unsubscribe from this group, send email to
liftweb+unsubscr...@googlegroups.com
For more options, visit this group at
http://groups.google.com/group/liftweb?hl=en
-~--~~~~--~~--~--~---
[Lift] Re: Question from a newbie: how to get a pdf document via submit button
Derek,
Thats an interesting idea, but as you say, its not exactly best
practice as snippets are for returning NodeSeq.
@martin: You need to implementing a dispatchPF in your Boot.scala file
(google around in the mailing list, this has been discussed a lot),
then in your snippet just do a S.redirectTo inside your button submit
handler and redirect to the appropriate download url.
Cheers, Tim
On Apr 24, 8:59 pm, Derek Chen-Becker dchenbec...@gmail.com wrote:
A snippet, by definition, returns a scala.xml.NodeSeq, so there's not a
direct way to do it. I haven't tested the code, but you may be able to get
away with using the ResponseShortcutException object to force a particular
response like so:
def mySnippet (...) ... {
def doSubmit () {
...
val myResponse = InMemoryResponse(...)
throw ResponseShortcutException.shortcutResponse(myResponse)
}
...
}
Lift will catch the exception and (I think) use whatever LiftResponse has
been set to send back to the user. I'm not confident at all that this will
work, but it might :)
Derek
On Fri, Apr 24, 2009 at 1:07 PM, maku martin.kuhn...@gmail.com wrote:
Tim,
this doesn't help.
It is exactly the solution I use until now (and which I tried to
explain in my first post). When I do it in this way how can I call it
via a submit button. Please remember: I want to activate the pdf
showing function via a submit button.
The solution I use until now is:
1) Defining a special request handling like you mentioned in your
last post (LiftRules.dispatch.append)
2) Performing a post request after pressing a submit button which call
a method in my snippet.
3) In my snippet I call a function which performs a REDIRECT to
exactly the path defined in LiftRules.dispatch.apppend
4) Returning the PDF
What I would want to know is:
Is it possible to do it simpler? Like in a pure servlet solution (or
like I do it in JSF): I write the bytes directly to my
HttpServletResponse.
And my main question is: how can I do this from the snippet.
Regards,
Martin
On 24 Apr., 20:20, Timothy Perrett timo...@getintheloop.eu wrote:
Martin,
You need to write a DispatchPF and put that in your boot.scala file.
e.g
LiftRules.dispatch.append {
case Req(my :: path :: Nil, pdf, GetRequest) = // do
steaming response stuff here
}
Does that help?
Cheers, Tim
On Apr 24, 12:22 pm, maku martin.kuhn...@gmail.com wrote:
Hi Tim,
thanks for responding.
I think I don't know enough.
O.k. I've to use StreamingResponse. What I would like to know is how
can I set the StreamingResponse instance as response served by lift
when my snippet handles the request triggered from the submit button.
In the pure servlet tech I would write to HttpServletResponse -- ...
response.getOutputStream().write(bytes);
TIA
Regards, Martin
On Apr 24, 11:29 am, Timothy Perrett timo...@getintheloop.eu wrote:
Your confussing things I think. InMemoryResponse is a HTTP response
designed for use in conjunction with DispatchPF.
If your getting the PDF dynamically then you'll need to read the PDF
either into memory and return it from a url or do a streaming
response
- checkout my blog post here about using StreamingResponse:
http://is.gd/oCtt
So, lets assume that you made a dispatchPF so that your pdf was
dynamically served from:
/download/pdf/someId
Then from your snippet you can either just manually link to that URL
if you so wish.
Does that help?
Cheers, Tim
On Apr 24, 8:50 am, maku martin.kuhn...@gmail.com wrote:
Hi,
I would like to get a PDF document (produced via IText) from my
app.
It should be triggered via a submit button
The PDF document should be presented in a separate browser window.
In the lift book there is an example how to do this via a link and
with mapping a request via LiftRules.dispatch.append to an
InMemoryResponse (which works as expected).
When I want to trigger this process via a submit button I can
imagine
to call a function in the form binding of the submit button (in
the
snippet) . The function would be able to redirectTo the request
mapping which returns an InMemoryResponse.
To present the PDF in an new window / tab, I would define the
submit
button with submit(PDF, pdf,(onClick,document.forms
[0].target='_blank';)
My questions:
- Is this a proper solution?
- Would it be possible to return the InMemoryRespone directly from
the
snippet (without the need to define a special request behaviour
and
to perform the redirectTo)
Could anybody give me a hint?
TIA
Regards,
Martin
--~--~-~--~~~---~--~~
You received this message because you are subscribed to the Google Groups
Lift group.
To post to
[Lift] Re: Feedback on screen cast, please
Or better still, just make a channel on Blip... then we could have a whole series of Lift related screen casts in a single channel done by various committers. http://blip.tv/ Thoughts? Cheers, Tim On Apr 24, 8:48 pm, Derek Chen-Becker dchenbec...@gmail.com wrote: Very nice. I don't think it matters whether it's AVI or Flash, but it would definitely help to pick a good codec for screencasts so that it's not a 200MB file. You might even want to look at Wink: http://www.debugmode.com/wink/ It does isolated screenshots, but in many cases that's clearer than a lossy video codec. Derek On Fri, Apr 24, 2009 at 9:50 AM, David Pollak feeder.of.the.be...@gmail.com wrote: Folks, I did a draft of a screencast for a real-time chat app. It's at http://tunaforcats.com/LiftScreenCast.avi I'd like to get some critical feedback on it so I can improve it. Thanks, David PS -- What's the best output format? AVI, QuickTime, Flash? -- Lift, the simply functional web frameworkhttp://liftweb.net Beginning Scalahttp://www.apress.com/book/view/1430219890 Follow me:http://twitter.com/dpp Git some:http://github.com/dpp --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to liftweb@googlegroups.com To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/liftweb?hl=en -~--~~~~--~~--~--~---
[Lift] timestamp versioning for including a javascript file
I'm trying to avoid having to clear the browser cache when I change a javascript file. One approach is to append a timestamp to the script src tag in the html file. script id=json src=/classpath/json.js type=text/javascript/ becomes: script id=json src=/classpath/json.js?*12341234* type=text/javascript/ Is there already a handy way to do this in lift (I'm told rails uses this approach)? Or is there a better way? And if not, would this make a good snippet? Lee --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to liftweb@googlegroups.com To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/liftweb?hl=en -~--~~~~--~~--~--~---
[Lift] Re: Feedback on screen cast, please
When I viewed that on my Mac the audio was out of sync with what was happening on the screen. It might be some codec issue on my machine since it was an AVI. On Apr 24, 11:50 am, David Pollak feeder.of.the.be...@gmail.com wrote: Folks, I did a draft of a screencast for a real-time chat app. It's athttp://tunaforcats.com/LiftScreenCast.avi I'd like to get some critical feedback on it so I can improve it. Thanks, David PS -- What's the best output format? AVI, QuickTime, Flash? -- Lift, the simply functional web frameworkhttp://liftweb.net Beginning Scalahttp://www.apress.com/book/view/1430219890 Follow me:http://twitter.com/dpp Git some:http://github.com/dpp --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to liftweb@googlegroups.com To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/liftweb?hl=en -~--~~~~--~~--~--~---
[Lift] Re: Binding Radio Button
I didn't get a compilation error, but the function in the checkbox (Boolean) = Any doesn't seem to be called bind(c,xhtml, checkbox - SHtml.checkbox(booleanThing, booleanThing = _) % (class - myCSSclass) ) As the example, booleanThing is always false no matter if I clicked the checkbox or not. I don't know why though. --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to liftweb@googlegroups.com To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/liftweb?hl=en -~--~~~~--~~--~--~---
[Lift] Re: Comet - Unique to each page
On Thu, Apr 23, 2009 at 8:28 PM, bradford fingerm...@gmail.com wrote:
Thanks again for your help. If I call this ! ShutDown in my
CometActor, it will redirect me back to the home page once ShutDown is
received.
Did you want me to open up a ticket for this?
This is correct behavior, no need for a ticket.
Thanks,
Bradford
On Apr 23, 10:06 am, bradford fingerm...@gmail.com wrote:
Thanks, David. What haven't you thought about?!
On Apr 23, 9:57 am, David Pollak feeder.of.the.be...@gmail.com
wrote:
On Thu, Apr 23, 2009 at 6:45 AM, bradford fingerm...@gmail.com
wrote:
Thanks, David. I will play around with this when I get home. I'll
open up a ticket at the same time as well, when I have sufficient
time
to review the problem. I'm looking to have the comet actor
automatically shutdown after it's pushed the 10th item to the server,
which looks like would be possible to do with a shutdown function.
You can manually shut down your comet actor today. Just do a actor !
Shutdown and it will release its resources and unregister from the
session.
Something I stumbled upon in my search:
http://cometdproject.dojotoolkit.org/documentation/FAQs/multipleTabs
Lift detects this too and will ping-pong the long polling from
multiple
windows... more HTTP requests, but lots of responsiveness.
Chrome and FF 3.1+ do not have this 2 connection limit. Lift will (at
some
point before 1.1 is released) do proper browser detection and not
enforce
the 2 connection limit for these browsers (because they don't have the
limit).
Further, you can set Lift up to do the Comet polling on a randomly
named
host such that each window/tab gets its own host (with DNS wildcarding)
to
poll on and in that situation, you also work around the 2 connection
limit.
Thanks
On Apr 23, 9:12 am, David Pollak feeder.of.the.be...@gmail.com
wrote:
On Wed, Apr 22, 2009 at 6:53 PM, bradford fingerm...@gmail.com
wrote:
I noticed in the chat demo that if you enter your name or chat
into
one tab, the same results will propagate to the other tab. I
need a
short lived comet session that's unique to each tab -- I want to
prevent one tab from mixing its data with another tab. I
understand
that most user browser only allow for 2 HTTP connections at a
time,
but as I said, I have about 10 consecutive pushes to the server
that
I'll be making and then I want the comet connection to
immediately
terminate.
Is this possible to do with the existing lift CometActor? If so,
any
suggestions on where to begin?
Each CometActor has a name. You can have multiple CometActors with
different names that represent different components. In the Lift
chat
example on the Chat page, there are two separate components. The
second
one
is identified with:
lift:comet type=Chat *name=Other*Chat Text/lift:comet
Please note the name attribute.
For each page that you render, you can write a snippet or something
that
does: def myNextCometGuy = lift:comet type=Chat
name={randomString(20)}
/
The big issue will be closing the comet actors down. I've been
planning
to
put an optional timeout in CometActors (basically allow them to
shut down
if
they haven't had a listener attach to them in N minutes.)If you
need
this feature, please open a defect athttp://
github.com/dpp/liftweb/issues
Thanks,
David
Thanks,
Bradford
--
Lift, the simply functional web frameworkhttp://liftweb.net
Beginning Scalahttp://www.apress.com/book/view/1430219890
Follow me:http://twitter.com/dpp
Git some:http://github.com/dpp
--
Lift, the simply functional web frameworkhttp://liftweb.net
Beginning Scalahttp://www.apress.com/book/view/1430219890
Follow me:http://twitter.com/dpp
Git some:http://github.com/dpp
--
Lift, the simply functional web framework http://liftweb.net
Beginning Scala http://www.apress.com/book/view/1430219890
Follow me: http://twitter.com/dpp
Git some: http://github.com/dpp
--~--~-~--~~~---~--~~
You received this message because you are subscribed to the Google Groups
Lift group.
To post to this group, send email to liftweb@googlegroups.com
To unsubscribe from this group, send email to
liftweb+unsubscr...@googlegroups.com
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[Lift] Re: Comet - Unique to each page
On Thu, Apr 23, 2009 at 8:28 PM, bradford fingerm...@gmail.com wrote:
Thanks again for your help. If I call this ! ShutDown in my
CometActor, it will redirect me back to the home page once ShutDown is
received.
Did you want me to open up a ticket for this?
I just added code for:
class MyCometActor extends CometActor {
...
override def lifespan = Full(5 minutes)
}
If the CometActor does not appear on a page for 5 minutes, it will be shut
down. THis should help you.
Thanks,
Bradford
On Apr 23, 10:06 am, bradford fingerm...@gmail.com wrote:
Thanks, David. What haven't you thought about?!
On Apr 23, 9:57 am, David Pollak feeder.of.the.be...@gmail.com
wrote:
On Thu, Apr 23, 2009 at 6:45 AM, bradford fingerm...@gmail.com
wrote:
Thanks, David. I will play around with this when I get home. I'll
open up a ticket at the same time as well, when I have sufficient
time
to review the problem. I'm looking to have the comet actor
automatically shutdown after it's pushed the 10th item to the server,
which looks like would be possible to do with a shutdown function.
You can manually shut down your comet actor today. Just do a actor !
Shutdown and it will release its resources and unregister from the
session.
Something I stumbled upon in my search:
http://cometdproject.dojotoolkit.org/documentation/FAQs/multipleTabs
Lift detects this too and will ping-pong the long polling from
multiple
windows... more HTTP requests, but lots of responsiveness.
Chrome and FF 3.1+ do not have this 2 connection limit. Lift will (at
some
point before 1.1 is released) do proper browser detection and not
enforce
the 2 connection limit for these browsers (because they don't have the
limit).
Further, you can set Lift up to do the Comet polling on a randomly
named
host such that each window/tab gets its own host (with DNS wildcarding)
to
poll on and in that situation, you also work around the 2 connection
limit.
Thanks
On Apr 23, 9:12 am, David Pollak feeder.of.the.be...@gmail.com
wrote:
On Wed, Apr 22, 2009 at 6:53 PM, bradford fingerm...@gmail.com
wrote:
I noticed in the chat demo that if you enter your name or chat
into
one tab, the same results will propagate to the other tab. I
need a
short lived comet session that's unique to each tab -- I want to
prevent one tab from mixing its data with another tab. I
understand
that most user browser only allow for 2 HTTP connections at a
time,
but as I said, I have about 10 consecutive pushes to the server
that
I'll be making and then I want the comet connection to
immediately
terminate.
Is this possible to do with the existing lift CometActor? If so,
any
suggestions on where to begin?
Each CometActor has a name. You can have multiple CometActors with
different names that represent different components. In the Lift
chat
example on the Chat page, there are two separate components. The
second
one
is identified with:
lift:comet type=Chat *name=Other*Chat Text/lift:comet
Please note the name attribute.
For each page that you render, you can write a snippet or something
that
does: def myNextCometGuy = lift:comet type=Chat
name={randomString(20)}
/
The big issue will be closing the comet actors down. I've been
planning
to
put an optional timeout in CometActors (basically allow them to
shut down
if
they haven't had a listener attach to them in N minutes.)If you
need
this feature, please open a defect athttp://
github.com/dpp/liftweb/issues
Thanks,
David
Thanks,
Bradford
--
Lift, the simply functional web frameworkhttp://liftweb.net
Beginning Scalahttp://www.apress.com/book/view/1430219890
Follow me:http://twitter.com/dpp
Git some:http://github.com/dpp
--
Lift, the simply functional web frameworkhttp://liftweb.net
Beginning Scalahttp://www.apress.com/book/view/1430219890
Follow me:http://twitter.com/dpp
Git some:http://github.com/dpp
--
Lift, the simply functional web framework http://liftweb.net
Beginning Scala http://www.apress.com/book/view/1430219890
Follow me: http://twitter.com/dpp
Git some: http://github.com/dpp
--~--~-~--~~~---~--~~
You received this message because you are subscribed to the Google Groups
Lift group.
To post to this group, send email to liftweb@googlegroups.com
To unsubscribe from this group, send email to
liftweb+unsubscr...@googlegroups.com
For more options, visit this group at
http://groups.google.com/group/liftweb?hl=en
-~--~~~~--~~--~--~---
[Lift] Re: Feedback on screen cast, please
On Apr 24, 3:23 pm, Patrick Down patrick.d...@gmail.com wrote: When I viewed that on my Mac the audio was out of sync with what was happening on the screen. It might be some codec issue on my machine since it was an AVI. This initially happened to me, too. But I got a phone call in the middle of watching the movie, so I paused it for a while. By the time I got back to the video, it was already completely loaded (instead of playing while loading). I hopped back like 30 seconds and hit play and the video + audio were back in sync. Perhaps that will work for you. -steve --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to liftweb@googlegroups.com To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/liftweb?hl=en -~--~~~~--~~--~--~---
[Lift] Re: Feedback on screen cast, please
On Fri, Apr 24, 2009 at 8:50 AM, David Pollak feeder.of.the.be...@gmail.com wrote: I'd like to get some critical feedback on it so I can improve it. I'm short on criticism - this was really cool. You might want to comment on how much compile time there is when you're rapidly updating a Lift application so people don't think you spend half your development time waiting for the computer or something. I'd like to note that for some reason when I opened the machine on my default media viewer, the video didn't work right although audio was fine - VLC 0.8.6e, Windows XP SP2. Opening in QuickTime worked fine though. Warren --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to liftweb@googlegroups.com To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/liftweb?hl=en -~--~~~~--~~--~--~---
