Re: [Lift] Re: Race conditions / database transaction isolation levels
cody koeninger c...@koeninger.org writes: On Dec 6, 9:16 pm, Alex Boisvert alex.boisv...@gmail.com wrote: Lift's mapper doesn't change the default isolation level of your connections, nor does it make explicit use of pessimistic concurrency control. Anything beyond that we can probably implement, we just need a good reason... alex Isn't the possibility of interleaved HTTP requests a sufficient reason? E.g. administrator editing a field near the same time a customer is. Unless the orm is writing everything it reads, even changing transaction isolation to serializable won't prevent certain types of race conditions. It seems like having the option to lock an entity when loading it from the database (implemented as select ... for update) would be useful. I haven't used Rails much, but that's my understanding of what ActiveRecord offers. Personally, I think using select for update is a bad idea when dealing with a UI. DB transactions should be as short as possible. On some databases, a locked record inhibits any reads (depending on isolation level of course) so the next user that comes in to view the record will just hang until the transaction times out. And what happens when the editing user just closes the browser? The record will not be unlocked until the session times out A much better solution imo is to use optimistic locking. /Jeppe -- You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to lift...@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: highlight the lift notices in some seconds
You don't need to configure anything in boot.
Assume this is an Ajax function:
def howdy: JsCmd = {
S.error(howdy error)
fadeOutErrors(5 seconds, 1 second)
}
... in your snippet you can say:
SHtml.a(Text(Click me)(howdy _)
If you want to fade out errors in a page and not via Ajax you can
use this:
def howdy = {
S.error(howdy error)
spanHello there/span ++
head{Script(OnLoad(fadeOutErrors(5 seconds, 1 second)))}
/head
}
which basically says after the page is rendered that after 5 seconds
the error notices will be faded out.
Br's,
Marius
On Dec 8, 9:50 am, Xuefeng Wu ben...@gmail.com wrote:
Yes, it's my wanted.
How could I configure it at boot?
On Tue, Dec 8, 2009 at 3:44 PM, Marius marius.dan...@gmail.com wrote:
Please see this:
http://groups.google.com/group/liftweb/browse_thread/thread/972562da2...
If you are using Ajax, notices could easily fade out.
Br's,
Marius
On Dec 8, 8:02 am, Xuefeng Wu ben...@gmail.com wrote:
Hi,
I want to highlight the lift notice and it will hide when timeout.
Should I code every request or only to config lift some where?
For example:
When use put items into the shopping cart, highlight the items some
seconds
to notice the user.
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[Lift] how to keep last submited form field value
I want the date field keep the last submited value. I tried with
below code, but it's dosn't work. The date value(display in page)
awalys the date of today.
the form:
lift:mySnippet.form1 form=POST
f:date/
f:submit/
/lift:mySnippet.form1
MySnippet:
class MySnippet extends StatefulSnippet {
val dfmt = new SimpleDateFormat(-MM-dd)
var date = dfmt.format(new Date)
val dispatch: DispatchIt = {
case form1 = form1 _
}
def form1(in: NodeSeq): NodeSeq = {
bind(f, in,
date - SHtml.text(date, date = _,
class - datepicker),
submit - SHtml.submit(submit, println(submit: +
date))
)
}
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[Lift] Re: highlight the lift notices in some seconds
Are you using field validate into an Ajax context or not? If not using
something like:
def howdy = {
S.error(howdy error)
spanHello there/span ++
head{Script(OnLoad(fadeOutErrors(5 seconds, 1 second)))}
/head
}
from your snippet should be ok.
If you are using validate from an Ajax invocation, then you just need
to return fadeOutErrors(5 seconds, 1 second) from your Ajax function.
So I guess your ajax function would looks something like:
def myDBAjax: JsCmd = {
// do the DB stuff
val errors = myMapper.validate
S.error(errors)
fadeOutErrors(5 seconds, 1 second)
}
Br's,
Marius
On Dec 8, 10:53 am, Xuefeng Wu ben...@gmail.com wrote:
But I use field validate, the notice and error are wrap by lift. Should I
append fadeOutErrors(5 seconds, 1 second)?
On Tue, Dec 8, 2009 at 4:50 PM, Marius marius.dan...@gmail.com wrote:
You don't need to configure anything in boot.
Assume this is an Ajax function:
def howdy: JsCmd = {
S.error(howdy error)
fadeOutErrors(5 seconds, 1 second)
}
... in your snippet you can say:
SHtml.a(Text(Click me)(howdy _)
If you want to fade out errors in a page and not via Ajax you can
use this:
def howdy = {
S.error(howdy error)
spanHello there/span ++
head{Script(OnLoad(fadeOutErrors(5 seconds, 1 second)))}
/head
}
which basically says after the page is rendered that after 5 seconds
the error notices will be faded out.
Br's,
Marius
On Dec 8, 9:50 am, Xuefeng Wu ben...@gmail.com wrote:
Yes, it's my wanted.
How could I configure it at boot?
On Tue, Dec 8, 2009 at 3:44 PM, Marius marius.dan...@gmail.com wrote:
Please see this:
http://groups.google.com/group/liftweb/browse_thread/thread/972562da2.
..
If you are using Ajax, notices could easily fade out.
Br's,
Marius
On Dec 8, 8:02 am, Xuefeng Wu ben...@gmail.com wrote:
Hi,
I want to highlight the lift notice and it will hide when
timeout.
Should I code every request or only to config lift some where?
For example:
When use put items into the shopping cart, highlight the items some
seconds
to notice the user.
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[Lift] Re: Char encoding problem using S.?
Ah ! In fact the problem did not appear when I upgraded to 1.1-SNAPSHOT but when I enabled maven resource filtering (which assumes all files use UTF-8). Anyway I'll look for a correct setting to have both ISO 8859-1 properties file and maven resource filtering enabled. On Dec 8, 10:41 am, Jean-Adrien jean.vauc...@gmail.com wrote: Hello, I have a char encoding problem, using the localization feature of lift. I use the ? method of the S object in order to translate strings. The localized values are in a translate_fr.properties file in the resources of the project. Until I upgrade from lift 1.1-M6 to 1.1-SNAPSHOT everything was ok, but now it seems that the following happens: As specified in the java doc, the properties file is encoded using ISO 8859-1. All xhtml templates in lift use UTF-8, and are interpreted in UTF-8 by the browser. But it seems that the the string loaded from properties file are badly translated to UTF-8 (?) I.e. é is 0xE9 in ISO 8859-1 and should turn when loaded in a String by java properties into the UTF-8 bytes 0xC3 0xA9. But it is interpreted some way in � (0x EF 0xBF 0xBD) I tried to encode my properties file in UTF-8 but I have the UTF encoding (0xC3 0xA9) interpreted in ISO 8859-1. é become é (famous French letter) in the webpage. Behaviour I understand since java loads properties String using ISO-8859-1 charset Does anyone observed the same ? -- You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to lift...@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.
Re: [Lift] Char encoding problem using S.?
Hi,
Can you send me a sample project offline that illustrates this problem? Its not
one i've seen before and im a little confused why your getting this because we
are leveraging the Java properties localisation under the hood for actual
loading and parsing of strings. That is:
private def ?!(str: String, resBundle: List[ResourceBundle]): String =
resBundle.flatMap(r = tryo(r.getObject(str) match {
case s: String = Full(s)
case _ = Empty
}).flatMap(s = s)).find(s = true) getOrElse {
LiftRules.localizationLookupFailureNotice.foreach(_(str, locale));
str
}
As above, send me a project offline and i'll see if i can isolate the problem
for you.
Cheers, Tim
On 8 Dec 2009, at 09:41, Jean-Adrien wrote:
Hello,
I have a char encoding problem, using the localization feature of
lift.
I use the ? method of the S object in order to translate strings. The
localized values are in a translate_fr.properties file in the
resources of the project.
Until I upgrade from lift 1.1-M6 to 1.1-SNAPSHOT everything was ok,
but now it seems that the following happens:
As specified in the java doc, the properties file is encoded using ISO
8859-1. All xhtml templates in lift use UTF-8, and are interpreted in
UTF-8 by the browser. But it seems that the the string loaded from
properties file are badly translated to UTF-8 (?)
I.e. é is 0xE9 in ISO 8859-1 and should turn when loaded in a String
by java properties into the UTF-8 bytes 0xC3 0xA9. But it is
interpreted some way in � (0x EF 0xBF 0xBD)
I tried to encode my properties file in UTF-8 but I have the UTF
encoding (0xC3 0xA9) interpreted in ISO 8859-1. é become é (famous
French letter) in the webpage. Behaviour I understand since java loads
properties String using ISO-8859-1 charset
Does anyone observed the same ?
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Re: [Lift] Re: (Maven problem?) Char encoding problem using S.?
Ahhh! That is interesting... i'd not thought of that :-) You'll need to specify a proper encoding type for sure otherwise maven will just assume your platform default... for example, MacRoman. Perhaps IRC or Josh will be able to advise... Cheers, Tim On 8 Dec 2009, at 10:02, Jean-Adrien wrote: Ah ! In fact the problem did not appear when I upgraded to 1.1-SNAPSHOT but when I enabled maven resource filtering (which assumes all files use UTF-8). Anyway I'll look for a correct setting to have both ISO 8859-1 properties file and maven resource filtering enabled. On Dec 8, 10:41 am, Jean-Adrien jean.vauc...@gmail.com wrote: Hello, I have a char encoding problem, using the localization feature of lift. I use the ? method of the S object in order to translate strings. The localized values are in a translate_fr.properties file in the resources of the project. Until I upgrade from lift 1.1-M6 to 1.1-SNAPSHOT everything was ok, but now it seems that the following happens: As specified in the java doc, the properties file is encoded using ISO 8859-1. All xhtml templates in lift use UTF-8, and are interpreted in UTF-8 by the browser. But it seems that the the string loaded from properties file are badly translated to UTF-8 (?) I.e. é is 0xE9 in ISO 8859-1 and should turn when loaded in a String by java properties into the UTF-8 bytes 0xC3 0xA9. But it is interpreted some way in � (0x EF 0xBF 0xBD) I tried to encode my properties file in UTF-8 but I have the UTF encoding (0xC3 0xA9) interpreted in ISO 8859-1. é become é (famous French letter) in the webpage. Behaviour I understand since java loads properties String using ISO-8859-1 charset Does anyone observed the same ? -- You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to lift...@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. -- You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to lift...@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.
Re: [Lift] Re: highlight the lift notices in some seconds
Yes, I do something like
// do the DB stuff
vmyMapper.validate match ｛
case Nil =
case xs = S.error(xs)
｝
But I should always add fadeOutErrors(5 seconds, 1 second)?
I want lift highlight every error/notice information.
On Tue, Dec 8, 2009 at 5:56 PM, Marius marius.dan...@gmail.com wrote:
Are you using field validate into an Ajax context or not? If not using
something like:
def howdy = {
S.error(howdy error)
spanHello there/span ++
head{Script(OnLoad(fadeOutErrors(5 seconds, 1 second)))}
/head
}
from your snippet should be ok.
If you are using validate from an Ajax invocation, then you just need
to return fadeOutErrors(5 seconds, 1 second) from your Ajax function.
So I guess your ajax function would looks something like:
def myDBAjax: JsCmd = {
// do the DB stuff
val errors = myMapper.validate
S.error(errors)
fadeOutErrors(5 seconds, 1 second)
}
Br's,
Marius
On Dec 8, 10:53 am, Xuefeng Wu ben...@gmail.com wrote:
But I use field validate, the notice and error are wrap by lift. Should I
append fadeOutErrors(5 seconds, 1 second)?
On Tue, Dec 8, 2009 at 4:50 PM, Marius marius.dan...@gmail.com wrote:
You don't need to configure anything in boot.
Assume this is an Ajax function:
def howdy: JsCmd = {
S.error(howdy error)
fadeOutErrors(5 seconds, 1 second)
}
... in your snippet you can say:
SHtml.a(Text(Click me)(howdy _)
If you want to fade out errors in a page and not via Ajax you can
use this:
def howdy = {
S.error(howdy error)
spanHello there/span ++
head{Script(OnLoad(fadeOutErrors(5 seconds, 1 second)))}
/head
}
which basically says after the page is rendered that after 5 seconds
the error notices will be faded out.
Br's,
Marius
On Dec 8, 9:50 am, Xuefeng Wu ben...@gmail.com wrote:
Yes, it's my wanted.
How could I configure it at boot?
On Tue, Dec 8, 2009 at 3:44 PM, Marius marius.dan...@gmail.com
wrote:
Please see this:
http://groups.google.com/group/liftweb/browse_thread/thread/972562da2.
..
If you are using Ajax, notices could easily fade out.
Br's,
Marius
On Dec 8, 8:02 am, Xuefeng Wu ben...@gmail.com wrote:
Hi,
I want to highlight the lift notice and it will hide when
timeout.
Should I code every request or only to config lift some where?
For example:
When use put items into the shopping cart, highlight the items
some
seconds
to notice the user.
--
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Re: [Lift] Re: (Maven problem?) Char encoding problem using S.?
you could select which file should be filtering, else every resources are filtering and converted (to UTF-8) /davidB On Tue, Dec 8, 2009 at 11:18, Timothy Perrett timo...@getintheloop.euwrote: Ahhh! That is interesting... i'd not thought of that :-) You'll need to specify a proper encoding type for sure otherwise maven will just assume your platform default... for example, MacRoman. Perhaps IRC or Josh will be able to advise... Cheers, Tim On 8 Dec 2009, at 10:02, Jean-Adrien wrote: Ah ! In fact the problem did not appear when I upgraded to 1.1-SNAPSHOT but when I enabled maven resource filtering (which assumes all files use UTF-8). Anyway I'll look for a correct setting to have both ISO 8859-1 properties file and maven resource filtering enabled. On Dec 8, 10:41 am, Jean-Adrien jean.vauc...@gmail.com wrote: Hello, I have a char encoding problem, using the localization feature of lift. I use the ? method of the S object in order to translate strings. The localized values are in a translate_fr.properties file in the resources of the project. Until I upgrade from lift 1.1-M6 to 1.1-SNAPSHOT everything was ok, but now it seems that the following happens: As specified in the java doc, the properties file is encoded using ISO 8859-1. All xhtml templates in lift use UTF-8, and are interpreted in UTF-8 by the browser. But it seems that the the string loaded from properties file are badly translated to UTF-8 (?) I.e. é is 0xE9 in ISO 8859-1 and should turn when loaded in a String by java properties into the UTF-8 bytes 0xC3 0xA9. But it is interpreted some way in � (0x EF 0xBF 0xBD) I tried to encode my properties file in UTF-8 but I have the UTF encoding (0xC3 0xA9) interpreted in ISO 8859-1. é become é (famous French letter) in the webpage. Behaviour I understand since java loads properties String using ISO-8859-1 charset Does anyone observed the same ? -- You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to lift...@googlegroups.com. To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.comliftweb%2bunsubscr...@googlegroups.com . For more options, visit this group at http://groups.google.com/group/liftweb?hl=en. -- You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to lift...@googlegroups.com. To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.comliftweb%2bunsubscr...@googlegroups.com . For more options, visit this group at http://groups.google.com/group/liftweb?hl=en. -- You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to lift...@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: highlight the lift notices in some seconds
Yes you need to send down fadeOut... call
def myFunc: JsCmd = {
// do some DB stuff
vmyMapper.validate match ｛
case Nil = Noop
case xs = S.error(xs); fadeOutErrors(5 seconds, 1 second)
｝
}
On Dec 8, 3:01 pm, Xuefeng Wu ben...@gmail.com wrote:
Yes, I do something like
// do the DB stuff
vmyMapper.validate match ｛
case Nil =
case xs = S.error(xs)
｝
But I should always add fadeOutErrors(5 seconds, 1 second)?
I want lift highlight every error/notice information.
On Tue, Dec 8, 2009 at 5:56 PM, Marius marius.dan...@gmail.com wrote:
Are you using field validate into an Ajax context or not? If not using
something like:
def howdy = {
S.error(howdy error)
spanHello there/span ++
head{Script(OnLoad(fadeOutErrors(5 seconds, 1 second)))}
/head
}
from your snippet should be ok.
If you are using validate from an Ajax invocation, then you just need
to return fadeOutErrors(5 seconds, 1 second) from your Ajax function.
So I guess your ajax function would looks something like:
def myDBAjax: JsCmd = {
// do the DB stuff
val errors = myMapper.validate
S.error(errors)
fadeOutErrors(5 seconds, 1 second)
}
Br's,
Marius
On Dec 8, 10:53 am, Xuefeng Wu ben...@gmail.com wrote:
But I use field validate, the notice and error are wrap by lift. Should I
append fadeOutErrors(5 seconds, 1 second)?
On Tue, Dec 8, 2009 at 4:50 PM, Marius marius.dan...@gmail.com wrote:
You don't need to configure anything in boot.
Assume this is an Ajax function:
def howdy: JsCmd = {
S.error(howdy error)
fadeOutErrors(5 seconds, 1 second)
}
... in your snippet you can say:
SHtml.a(Text(Click me)(howdy _)
If you want to fade out errors in a page and not via Ajax you can
use this:
def howdy = {
S.error(howdy error)
spanHello there/span ++
head{Script(OnLoad(fadeOutErrors(5 seconds, 1 second)))}
/head
}
which basically says after the page is rendered that after 5 seconds
the error notices will be faded out.
Br's,
Marius
On Dec 8, 9:50 am, Xuefeng Wu ben...@gmail.com wrote:
Yes, it's my wanted.
How could I configure it at boot?
On Tue, Dec 8, 2009 at 3:44 PM, Marius marius.dan...@gmail.com
wrote:
Please see this:
http://groups.google.com/group/liftweb/browse_thread/thread/972562da2.
..
If you are using Ajax, notices could easily fade out.
Br's,
Marius
On Dec 8, 8:02 am, Xuefeng Wu ben...@gmail.com wrote:
Hi,
I want to highlight the lift notice and it will hide when
timeout.
Should I code every request or only to config lift some where?
For example:
When use put items into the shopping cart, highlight the items
some
seconds
to notice the user.
--
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Re: [Lift] Re: highlight the lift notices in some seconds
I think It's better I could configure it, but not code every where.
On Tue, Dec 8, 2009 at 9:23 PM, Marius marius.dan...@gmail.com wrote:
Yes you need to send down fadeOut... call
def myFunc: JsCmd = {
// do some DB stuff
vmyMapper.validate match ｛
case Nil = Noop
case xs = S.error(xs); fadeOutErrors(5 seconds, 1 second)
｝
}
On Dec 8, 3:01 pm, Xuefeng Wu ben...@gmail.com wrote:
Yes, I do something like
// do the DB stuff
vmyMapper.validate match ｛
case Nil =
case xs = S.error(xs)
｝
But I should always add fadeOutErrors(5 seconds, 1 second)?
I want lift highlight every error/notice information.
On Tue, Dec 8, 2009 at 5:56 PM, Marius marius.dan...@gmail.com wrote:
Are you using field validate into an Ajax context or not? If not using
something like:
def howdy = {
S.error(howdy error)
spanHello there/span ++
head{Script(OnLoad(fadeOutErrors(5 seconds, 1 second)))}
/head
}
from your snippet should be ok.
If you are using validate from an Ajax invocation, then you just need
to return fadeOutErrors(5 seconds, 1 second) from your Ajax function.
So I guess your ajax function would looks something like:
def myDBAjax: JsCmd = {
// do the DB stuff
val errors = myMapper.validate
S.error(errors)
fadeOutErrors(5 seconds, 1 second)
}
Br's,
Marius
On Dec 8, 10:53 am, Xuefeng Wu ben...@gmail.com wrote:
But I use field validate, the notice and error are wrap by lift.
Should I
append fadeOutErrors(5 seconds, 1 second)?
On Tue, Dec 8, 2009 at 4:50 PM, Marius marius.dan...@gmail.com
wrote:
You don't need to configure anything in boot.
Assume this is an Ajax function:
def howdy: JsCmd = {
S.error(howdy error)
fadeOutErrors(5 seconds, 1 second)
}
... in your snippet you can say:
SHtml.a(Text(Click me)(howdy _)
If you want to fade out errors in a page and not via Ajax you can
use this:
def howdy = {
S.error(howdy error)
spanHello there/span ++
head{Script(OnLoad(fadeOutErrors(5 seconds, 1 second)))}
/head
}
which basically says after the page is rendered that after 5
seconds
the error notices will be faded out.
Br's,
Marius
On Dec 8, 9:50 am, Xuefeng Wu ben...@gmail.com wrote:
Yes, it's my wanted.
How could I configure it at boot?
On Tue, Dec 8, 2009 at 3:44 PM, Marius marius.dan...@gmail.com
wrote:
Please see this:
http://groups.google.com/group/liftweb/browse_thread/thread/972562da2.
..
If you are using Ajax, notices could easily fade out.
Br's,
Marius
On Dec 8, 8:02 am, Xuefeng Wu ben...@gmail.com wrote:
Hi,
I want to highlight the lift notice and it will hide when
timeout.
Should I code every request or only to config lift some
where?
For example:
When use put items into the shopping cart, highlight the
items
some
seconds
to notice the user.
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[Lift] Re: Field validation
Hi!
Cool to see me there:
* @author Alex Siman
You can also set attribute maxlength of HTML input tag based of JPA
size anno. See http://www.w3schools.com/TAGS/att_input_maxlength.asp
Checkout full code for more ideas. You can create more generic
architecture and wrap existent JPA entities with methods for printing
entity fields to HTML:
package xxx.snippet
import scala.xml._
import net.liftweb.http._
import net.liftweb.http.S._
import net.liftweb.http.SHtml._
import net.liftweb.util.Helpers._
import xxx.model._
class AdminProduct {
// Holder to store entered values for Product between requests.
object Product extends RequestVar[Gift](new Gift())
Product.is.requestObject = Product
println(AdminProduct: Product.is.requestObject = Product)
def render(xhtml: Group): NodeSeq = {
println(-- AdminProduct.render())
def doSubmit() = {
println( AdminProduct.doSubmit())
// Do smth... Ex open/close JPA session
println( AdminProduct.doSubmit())
val valid = Product.is.validate
val product = Product.is
if (!valid) {
S.error(Form has errors.)
} else {
val msg = (AdminProduct.doSubmit: Product
saved: { +
product.title + @ $ + product.price
+ })
println(msg)
notice(msg)
redirectTo(/checkout/product/saved)
}
}
println(-- AdminProduct.render())
// Request scoped.
bind(product, xhtml,
title - Product.is.titleToForm(),
price - Product.is.descToForm(),
desc - Product.is.priceToForm(),
submit - Product.is.formField(, submit(Save,
doSubmit)))
}
}
package xxx.model
import scala.xml._
import net.liftweb.http.SHtml._
import net.liftweb.http.S._
import net.liftweb.util.Helpers._
import net.liftweb.http.RequestVar
import net.liftweb.http.LiftSession._
case class Gift() {
var title =
var desc =
var price = 0.0
val titleId = title
val descId = desc
val priceId = price
var requestObject: RequestVar[Gift] = null
private def getProduct() = {
requestObject.is
}
def validate(): Boolean = {
var valid = true
// TODO: Replace by JPA validators.
title match {
case = {
valid = false
error(titleId, Title required.)
}
case _ =
}
desc match {
case _ =
}
// TODO: Price must be converted to Double/BigDecimal etc.
price match {
case 0.0 = {
valid = false
error(priceId, Price required.)
error(priceId, Price must be $0.)
}
case 100.0 = {
valid = false
error(priceId, Price must be $100.)
}
case _ =
}
valid
}
def formField(label: String, input: Elem): NodeSeq = {
// ... Body from prev. email.
}
def titleToForm() = {
formField(Title, text(title, getProduct().title = _, (id,
titleId)))
}
def descToForm() = {
formField(Description, textarea(desc, getProduct().desc = _,
(id, descId)))
}
def priceToForm() = {
formField(Price, text(price, getProduct().price = _, (id,
priceId)))
}
// TODO: Also there can be more complex method:
//def toForm() = {...}
}
On 8 дек, 02:20, wstrange warren.stra...@gmail.com wrote:
After some experimenting I have field validation working with JSR 303
annotations. See:
http://wstrange.wordpress.com/2009/12/07/inline-field-validation-in-s...
On Dec 5, 10:53 pm, wstrange warren.stra...@gmail.com wrote:
After more experimenting ... I think this approach only works with
Mapper/Record? It requires afieldid to be set, and validations
errors to be set on that id ( e.g. S.error(mobilePhone, bad
phone...) )
Is there an example of how to do this using JPA and JSR 303 (aka
Hibernate Validators)?
On Dec 5, 6:38 pm, wstrange warren.stra...@gmail.com wrote:
OK, figured it out. This should be:
bind(...
mobilePhone -
[Lift] Re: Field validation
Also take a look at JPA example from Lift sources:
http://github.com/dpp/liftweb/tree/master/lift-examples/JPADemo/
On 8 дек, 02:20, wstrange warren.stra...@gmail.com wrote:
After some experimenting I have field validation working with JSR 303
annotations. See:
http://wstrange.wordpress.com/2009/12/07/inline-field-validation-in-s...
On Dec 5, 10:53 pm, wstrange warren.stra...@gmail.com wrote:
After more experimenting ... I think this approach only works with
Mapper/Record? It requires afieldid to be set, and validations
errors to be set on that id ( e.g. S.error(mobilePhone, bad
phone...) )
Is there an example of how to do this using JPA and JSR 303 (aka
Hibernate Validators)?
On Dec 5, 6:38 pm, wstrange warren.stra...@gmail.com wrote:
OK, figured it out. This should be:
bind(...
mobilePhone - formField(Mobile Phone, SHtml.text
(user.mobilePhone, user.mobilePhone = _) ),
On Dec 5, 5:39 pm, wstrange warren.stra...@gmail.com wrote:
Hi Alex
Thank you so much for the tip.
Just so I am clear (I am a lift newbie), I assume I would call this
function in my snippet:
bind(..
phoneNumber - formField(Phone Number, user.phoneNumber)
)
Is that the idea?
On Dec 4, 5:06 pm, Alex Siman aleksandr.si...@gmail.com wrote:
Checkout my code, especially parts with cssClass.
import net.liftweb.http.S._
import net.liftweb.http.SHtml._
// input can be SHtml.text
def formField(label: String, input: Elem): NodeSeq = {
val fixedLabel = label match {
case =
case s: String = s + :
}
val id = (input \ @id).toString
val messageList = messagesById(id)(errors)
val hasMessages = messageList.size 0
val cssClass = if (hasMessages) ErrorField else
val messages = messageList match {
case list: List[NodeSeq] if hasMessages = {
ul{messageList.map(m =
li{m}/li)}/ul
}
case _ = Nil
}
table class={cssClass} style=width: 100%;
tr
td style=text-align: right;
vertical-align: top; width: 10em;
b{fixedLabel}/bnbsp;
/td
td style=text-align: left;
{input}{messages}
/td
/tr
/table
}
On 4 дек, 23:22, wstrange warren.stra...@gmail.com wrote:
I have searched the archives, but the answer is not immediately
clear
to me...
How does one providefieldvalidationfeedback on a form (e.g. turn
the phone numberfieldred if an error is made in data entry)? The
S.error approach of collecting all the errors into one big message
seems unwieldy, and does not give the user very good feedback. I
am
using JPA if that makes any difference.
Any tips would be appreciated
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[Lift] By default DB.buildLoanWrapper is eager (Jeppe, please read)
Folks,
A month or so ago, I made the DB.buildLoanWrapper lazy. While it provided a
request-duration transaction, it did not actually pull the JDBC connection
from the pool until the first request for the JDBC connection. This led to
some problems. Basically:
object MySnippet {
def render = synchronized {
... do a query in here
}
}
If some threads acquired the JDBC connection before invoking the snippet
while others acquired the JDBC connection inside the synchronized (note it's
an object) render method, there could be a deadlock caused by JDBC pool
starvation. This is unexpected and not likely to manifest unless you've got
a non-trivial number of threads servicing requests.
To avoid this unexpected situation, I returned DB.buildLoanWrapper to being
eager, but you (and by you, I mean Jeppe), can also call
DB.buildLoanWrapper(false) which will have the newer, lazy behavior.
Additionally, the default thread pool manager in Lift (ProtoDBVendor) will
allow temporary pool expansion. If there are no connections available after
waiting 50ms, the pool will be temporarily expanded. This also works around
the above mentioned deadlock issue. The temporary expansion can be disabled
by override protected def allowTemporaryPoolExpansion = false
Thanks,
David
PS -- We're getting close to M8. Please test the current SNAPSHOT and
report any anomalies.
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[Lift] It's time to test SNAPSHOT (the future Milestone 8) **IMPORTANT**
Folks, We are nearing the Lift 1.1 Milestone 8 release. The code (except for bug fixes) that's going to be in M8 is currently in SNAPSHOT. Please do a mvn -U clean install on your project and test heartily against SNAPSHOT. Please report any defects ASAP to the Lift list (and subsequently open tickets). We'd like M8 to be as clean and stable as M6 and your testing help is necessary to achieve that goal. Thanks, David -- 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 -- You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to lift...@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.
Re: [Lift] Re: (Maven problem?) Char encoding problem using S.?
Good catch! I'll take a look. Jean, can you please send a zip of your project (just enough to recreate the scenario, no sensitive code necessary)? Cheers, Indrajit On 08/12/09 3:48 PM, Timothy Perrett wrote: Ahhh! That is interesting... i'd not thought of that :-) You'll need to specify a proper encoding type for sure otherwise maven will just assume your platform default... for example, MacRoman. Perhaps IRC or Josh will be able to advise... Cheers, Tim On 8 Dec 2009, at 10:02, Jean-Adrien wrote: Ah ! In fact the problem did not appear when I upgraded to 1.1-SNAPSHOT but when I enabled maven resource filtering (which assumes all files use UTF-8). Anyway I'll look for a correct setting to have both ISO 8859-1 properties file and maven resource filtering enabled. On Dec 8, 10:41 am, Jean-Adrienjean.vauc...@gmail.com wrote: Hello, I have a char encoding problem, using the localization feature of lift. I use the ? method of the S object in order to translate strings. The localized values are in a translate_fr.properties file in the resources of the project. Until I upgrade from lift 1.1-M6 to 1.1-SNAPSHOT everything was ok, but now it seems that the following happens: As specified in the java doc, the properties file is encoded using ISO 8859-1. All xhtml templates in lift use UTF-8, and are interpreted in UTF-8 by the browser. But it seems that the the string loaded from properties file are badly translated to UTF-8 (?) I.e. é is 0xE9 in ISO 8859-1 and should turn when loaded in a String by java properties into the UTF-8 bytes 0xC3 0xA9. But it is interpreted some way in � (0x EF 0xBF 0xBD) I tried to encode my properties file in UTF-8 but I have the UTF encoding (0xC3 0xA9) interpreted in ISO 8859-1. é become é (famous French letter) in the webpage. Behaviour I understand since java loads properties String using ISO-8859-1 charset Does anyone observed the same ? -- You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to lift...@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. -- You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to lift...@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. -- You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to lift...@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.
Re: [Lift] Re: (Maven problem?) Char encoding problem using S.?
On Tue, Dec 8, 2009 at 6:27 AM, Indrajit Raychaudhuri indraj...@gmail.comwrote: Good catch! I'll take a look. Jean, can you please send a zip of your project (just enough to recreate the scenario, no sensitive code necessary)? And perhaps something that we can add as a test to the Lift build process. ;-) Cheers, Indrajit On 08/12/09 3:48 PM, Timothy Perrett wrote: Ahhh! That is interesting... i'd not thought of that :-) You'll need to specify a proper encoding type for sure otherwise maven will just assume your platform default... for example, MacRoman. Perhaps IRC or Josh will be able to advise... Cheers, Tim On 8 Dec 2009, at 10:02, Jean-Adrien wrote: Ah ! In fact the problem did not appear when I upgraded to 1.1-SNAPSHOT but when I enabled maven resource filtering (which assumes all files use UTF-8). Anyway I'll look for a correct setting to have both ISO 8859-1 properties file and maven resource filtering enabled. On Dec 8, 10:41 am, Jean-Adrienjean.vauc...@gmail.com wrote: Hello, I have a char encoding problem, using the localization feature of lift. I use the ? method of the S object in order to translate strings. The localized values are in a translate_fr.properties file in the resources of the project. Until I upgrade from lift 1.1-M6 to 1.1-SNAPSHOT everything was ok, but now it seems that the following happens: As specified in the java doc, the properties file is encoded using ISO 8859-1. All xhtml templates in lift use UTF-8, and are interpreted in UTF-8 by the browser. But it seems that the the string loaded from properties file are badly translated to UTF-8 (?) I.e. é is 0xE9 in ISO 8859-1 and should turn when loaded in a String by java properties into the UTF-8 bytes 0xC3 0xA9. But it is interpreted some way in � (0x EF 0xBF 0xBD) I tried to encode my properties file in UTF-8 but I have the UTF encoding (0xC3 0xA9) interpreted in ISO 8859-1. é become é (famous French letter) in the webpage. Behaviour I understand since java loads properties String using ISO-8859-1 charset Does anyone observed the same ? -- You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to lift...@googlegroups.com. To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.comliftweb%2bunsubscr...@googlegroups.com . For more options, visit this group at http://groups.google.com/group/liftweb?hl=en. -- You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to lift...@googlegroups.com. To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.comliftweb%2bunsubscr...@googlegroups.com . For more options, visit this group at http://groups.google.com/group/liftweb?hl=en. -- You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to lift...@googlegroups.com. To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.comliftweb%2bunsubscr...@googlegroups.com . For more options, visit this group at http://groups.google.com/group/liftweb?hl=en. -- 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 -- You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to lift...@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: (Maven problem?) Char encoding problem using S.?
On Dec 8, 7:31 pm, David Pollak feeder.of.the.be...@gmail.com wrote: On Tue, Dec 8, 2009 at 6:27 AM, Indrajit Raychaudhuri indraj...@gmail.comwrote: Good catch! I'll take a look. Jean, can you please send a zip of your project (just enough to recreate the scenario, no sensitive code necessary)? And perhaps something that we can add as a test to the Lift build process. ;-) Yes, indeed. Let me first find the culprit behind this ;) Cheers, Indrajit On 08/12/09 3:48 PM, Timothy Perrett wrote: Ahhh! That is interesting... i'd not thought of that :-) You'll need to specify a proper encoding type for sure otherwise maven will just assume your platform default... for example, MacRoman. Perhaps IRC or Josh will be able to advise... Cheers, Tim On 8 Dec 2009, at 10:02, Jean-Adrien wrote: Ah ! In fact the problem did not appear when I upgraded to 1.1-SNAPSHOT but when I enabled maven resource filtering (which assumes all files use UTF-8). Anyway I'll look for a correct setting to have both ISO 8859-1 properties file and maven resource filtering enabled. On Dec 8, 10:41 am, Jean-Adrienjean.vauc...@gmail.com wrote: Hello, I have a char encoding problem, using the localization feature of lift. I use the ? method of the S object in order to translate strings. The localized values are in a translate_fr.properties file in the resources of the project. Until I upgrade from lift 1.1-M6 to 1.1-SNAPSHOT everything was ok, but now it seems that the following happens: As specified in the java doc, the properties file is encoded using ISO 8859-1. All xhtml templates in lift use UTF-8, and are interpreted in UTF-8 by the browser. But it seems that the the string loaded from properties file are badly translated to UTF-8 (?) I.e. é is 0xE9 in ISO 8859-1 and should turn when loaded in a String by java properties into the UTF-8 bytes 0xC3 0xA9. But it is interpreted some way in � (0x EF 0xBF 0xBD) I tried to encode my properties file in UTF-8 but I have the UTF encoding (0xC3 0xA9) interpreted in ISO 8859-1. é become é (famous French letter) in the webpage. Behaviour I understand since java loads properties String using ISO-8859-1 charset Does anyone observed the same ? -- You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to lift...@googlegroups.com. To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.comliftweb%2bunsubscr...@googlegroups.com . For more options, visit this group at http://groups.google.com/group/liftweb?hl=en. -- You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to lift...@googlegroups.com. To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.comliftweb%2bunsubscr...@googlegroups.com . For more options, visit this group at http://groups.google.com/group/liftweb?hl=en. -- You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to lift...@googlegroups.com. To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.comliftweb%2bunsubscr...@googlegroups.com . For more options, visit this group at http://groups.google.com/group/liftweb?hl=en. -- Lift, the simply functional web frameworkhttp://liftweb.net Beginning Scalahttp://www.apress.com/book/view/1430219890 Follow me:http://twitter.com/dpp Surf the harmonics -- You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to lift...@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.
Re: [Lift] how to keep last submited form field value
You should use a SessionVar or a stateful snippet.
Here's how you would use a SessionVar,
object lastSubmittedDate extends SessionVar[Date](new Date)
...
bind(...,
date - SHtml.text(lastSubmittedDate.is, lastSubmittedDate(_),
class - datepicker),
alex
On Tue, Dec 8, 2009 at 1:42 AM, Jarod Liu liuyuan...@gmail.com wrote:
I want the date field keep the last submited value. I tried with
below code, but it's dosn't work. The date value(display in page)
awalys the date of today.
the form:
lift:mySnippet.form1 form=POST
f:date/
f:submit/
/lift:mySnippet.form1
MySnippet:
class MySnippet extends StatefulSnippet {
val dfmt = new SimpleDateFormat(-MM-dd)
var date = dfmt.format(new Date)
val dispatch: DispatchIt = {
case form1 = form1 _
}
def form1(in: NodeSeq): NodeSeq = {
bind(f, in,
date - SHtml.text(date, date = _,
class - datepicker),
submit - SHtml.submit(submit, println(submit: +
date))
)
}
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[Lift] How can bind more than one element in the render method in CometActor ?
Hi all,
How can bind more than one element in the render method in
CometActor ?
The msg1 is an
###
class TestComet extends CometActor {
override def defaultPrefix = Full(info)
...
def render = { bind(One - span1/span,
Two - span2/span,
Three - span3/span,
Four - span4/span,
Five - span5/span,
Six - span6/span ) }
...
}
###
And in the index.html page
###
...
lift:comet type=TestComet
info:One/
/lift:comet
span/span
lift:comet type=TestComet
info:Two/
/lift:comet
span/span
lift:comet type=TestComet
info:Three
/lift:comet
span/span
lift:comet type=TestComet
info:Four
/lift:comet
...
###
And these four comet all show the same result span3/span,
not 1, 2, 3, 4, 5, 6
I don't know what's wrong with it ?
Dose anybody know what's the problem with this render metho?
Thanks for any help.
Cheers,
Neil
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[Lift] Re: How can bind more than one element in the render method in CometActor ?
BTW, when the partialUpdate method is called , the result is
correct.
But when refreshing the browser or open a new browser, the result
also is 3,
Cheers,
Neil
On Dec 9, 12:44 am, Neil.Lv anim...@gmail.com wrote:
Hi all,
How can bind more than one element in the render method in
CometActor ?
The msg1 is an
###
class TestComet extends CometActor {
override def defaultPrefix = Full(info)
...
def render = { bind(One - span1/span,
Two - span2/span,
Three - span3/span,
Four - span4/span,
Five - span5/span,
Six - span6/span ) }
...}
###
And in the index.html page
###
...
lift:comet type=TestComet
info:One/
/lift:comet
span/span
lift:comet type=TestComet
info:Two/
/lift:comet
span/span
lift:comet type=TestComet
info:Three
/lift:comet
span/span
lift:comet type=TestComet
info:Four
/lift:comet
...
###
And these four comet all show the same result span3/span,
not 1, 2, 3, 4, 5, 6
I don't know what's wrong with it ?
Dose anybody know what's the problem with this render metho?
Thanks for any help.
Cheers,
Neil
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[Lift] Re: I was giving a short interview for JavaBooks.org about Lift Scala
You can vote up or down here :) http://www.dzone.com/links/video_interview_with_marius_danciu_author_of_the.html Br's, Marius On Dec 7, 9:59 am, Marius marius.dan...@gmail.com wrote: Hi, After a long day I ended up giving this interview. http://vimeo.com/7986506 Br's, Marius P.S. Please forgive my crappy English. -- You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to lift...@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: Multi-Database Transactions
Hi Jeppe - thanks for your response.
So, am I correct in saying that I just need to do something like
this? (not tested code - just an approximation)
//Assuming fooDb and barDb are some form of connection wrapper...
S.addAround(List(new LoanWrapper {
def apply[T](f: = T): T = {
fooDb.begin
barDb.begin
try {
val result = f
barDb.commit
fooDb.commit
result
}
catch {
case e = {
barDb.rollback
fooDb.rollback
}
}
}
}))
On Dec 2, 11:56 am, Jeppe Nejsum Madsen je...@ingolfs.dk wrote:
deadfolk deadf...@gmail.com writes:
[...]
I'll likely be using plain JDBC or JPA. What would be my options in
Lift? Can I get a list of connections and just use a filter (or
equivalent) to begin/commit/rollback on each within every request?
I've done some searching, but I've not found anything relating to the
use of multiple databases.
Any advice/pointers would be very much appreciated.
Lift already supports wrapping the request with code. e.g I have
S.addAround(DB.buildLoanWrapper)
in Boot.scala which wraps a transaction around the request.
I haven't tried multiple databases, but it should be trivial (famous
last words :-) to extend this to also work in this scenario (when you
don't want XA transactions)
This is for Mapper, the Lift ORM, I assume JPA can be made to work in
similar ways...
/Jeppe
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Re: [Lift] A question on radio button
Off the top of my head, I don't think that SHtml.radio supports putting attributes on just one of the items. This seems like a reasonable thing to want, so please open a ticket. Derek On Tue, Dec 1, 2009 at 10:45 PM, sunanda sunanda.pa...@gmail.com wrote: Hi, I have got two radio button fields(Yes,No) In my form I need to display an input field onclick of the button Yes else the field needs to be hidden. How can I achieve this inside the form. Regards, Sunanda -- You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to lift...@googlegroups.com. To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.comliftweb%2bunsubscr...@googlegroups.com . For more options, visit this group at http://groups.google.com/group/liftweb?hl=en. -- You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to lift...@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: Race conditions / database transaction isolation levels
On Dec 8, 2:19 am, Jeppe Nejsum Madsen je...@ingolfs.dk wrote: record will not be unlocked until the session times out I thought it was stated above that the transaction is scoped to the request by default, not the session? A much better solution imo is to use optimistic locking. I'm not going to disagree with you there. However, are the lift devs really interested in spending time implementing an optimistic locking system? As it stands, if I actually need data consistency with Lift, it looks like the choice is JPA. An optional pessimistic lock would make mapper a more realistic choice, and the implementation should be pretty blunt in terms of complexity (and drawbacks as you noted). -- You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to lift...@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: Fwd: Watch Foursquare Lift talk live from NY
My slide deck (for any that are interested) can be found here: http://docs.google.com/present/view?id=dcbpz3ck_24f3v83ggz -harryh On Dec 8, 12:19 am, Xuefeng Wu ben...@gmail.com wrote: 6:30 p.m. the time zone is -8:00? On Tue, Dec 8, 2009 at 12:58 PM, David Pollak feeder.of.the.be...@gmail.com wrote: On Mon, Dec 7, 2009 at 8:50 PM, Mateo Barraza mateo.barr...@gmail.comwrote: I can't seem to be able to download the talk. Anyone else having problems? Yeah... n8han's uploading the video elsewhere... we'll send around an URL once we get one. M On Mon, Dec 7, 2009 at 7:59 PM, Peter Robinett pe...@bubblefoundry.com wrote: If you missed the talk you can download it from the same link. It's a good one. One thing mentioned briefly in the talk that I'd like to know more about is oAuth Server code. Is anyone working on that? How can I help? Peter On Dec 7, 3:16 pm, David Pollak feeder.of.the.be...@gmail.com wrote: -- Forwarded message -- From: Dave Briccetti da...@davebsoft.com Date: Mon, Dec 7, 2009 at 3:15 PM Subject: Watch Foursquare Lift talk live from NY To: Bay Area Scala Enthusiasts scala-b...@googlegroups.com http://www.justin.tv/n8han -- You received this message because you are subscribed to the Google Groups Bay Area Scala Enthusiasts group. To post to this group, send email to scala-b...@googlegroups.com. To unsubscribe from this group, send email to scala-base+unsubscr...@googlegroups.comscala-base%2bunsubscr...@googlegroups.com scala-base%2bunsubscr...@googlegroups.comscala-base%252bunsubscr...@googlegroups.com . For more options, visit this group athttp:// groups.google.com/group/scala-base?hl=en. -- Lift, the simply functional web frameworkhttp://liftweb.net Beginning Scalahttp://www.apress.com/book/view/1430219890 Follow me:http://twitter.com/dpp Surf the harmonics -- You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to lift...@googlegroups.com. To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.comliftweb%2bunsubscr...@googlegroups.com . For more options, visit this group at http://groups.google.com/group/liftweb?hl=en. -- You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to lift...@googlegroups.com. To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.comliftweb%2bunsubscr...@googlegroups.com . For more options, visit this group at http://groups.google.com/group/liftweb?hl=en. -- Lift, the simply functional web frameworkhttp://liftweb.net Beginning Scalahttp://www.apress.com/book/view/1430219890 Follow me:http://twitter.com/dpp Surf the harmonics -- You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to lift...@googlegroups.com. To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.comliftweb%2bunsubscr...@googlegroups.com . For more options, visit this group at http://groups.google.com/group/liftweb?hl=en. -- Scala中文社区: http://groups.google.com/group/scalacn -- You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to lift...@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: Fwd: Watch Foursquare Lift talk live from NY
Very nice stuff ! On Dec 8, 8:58 pm, harryh har...@gmail.com wrote: My slide deck (for any that are interested) can be found here: http://docs.google.com/present/view?id=dcbpz3ck_24f3v83ggz -harryh On Dec 8, 12:19 am, Xuefeng Wu ben...@gmail.com wrote: 6:30 p.m. the time zone is -8:00? On Tue, Dec 8, 2009 at 12:58 PM, David Pollak feeder.of.the.be...@gmail.com wrote: On Mon, Dec 7, 2009 at 8:50 PM, Mateo Barraza mateo.barr...@gmail.comwrote: I can't seem to be able to download the talk. Anyone else having problems? Yeah... n8han's uploading the video elsewhere... we'll send around an URL once we get one. M On Mon, Dec 7, 2009 at 7:59 PM, Peter Robinett pe...@bubblefoundry.com wrote: If you missed the talk you can download it from the same link. It's a good one. One thing mentioned briefly in the talk that I'd like to know more about is oAuth Server code. Is anyone working on that? How can I help? Peter On Dec 7, 3:16 pm, David Pollak feeder.of.the.be...@gmail.com wrote: -- Forwarded message -- From: Dave Briccetti da...@davebsoft.com Date: Mon, Dec 7, 2009 at 3:15 PM Subject: Watch Foursquare Lift talk live from NY To: Bay Area Scala Enthusiasts scala-b...@googlegroups.com http://www.justin.tv/n8han -- You received this message because you are subscribed to the Google Groups Bay Area Scala Enthusiasts group. To post to this group, send email to scala-b...@googlegroups.com. To unsubscribe from this group, send email to scala-base+unsubscr...@googlegroups.comscala-base%2bunsubscr...@googlegroups.com scala-base%2bunsubscr...@googlegroups.comscala-base%252bunsubscr...@googlegroups.com . For more options, visit this group athttp:// groups.google.com/group/scala-base?hl=en. -- Lift, the simply functional web frameworkhttp://liftweb.net Beginning Scalahttp://www.apress.com/book/view/1430219890 Follow me:http://twitter.com/dpp Surf the harmonics -- You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to lift...@googlegroups.com. To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.comliftweb%2bunsubscr...@googlegroups.com . For more options, visit this group at http://groups.google.com/group/liftweb?hl=en. -- You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to lift...@googlegroups.com. To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.comliftweb%2bunsubscr...@googlegroups.com . For more options, visit this group at http://groups.google.com/group/liftweb?hl=en. -- Lift, the simply functional web frameworkhttp://liftweb.net Beginning Scalahttp://www.apress.com/book/view/1430219890 Follow me:http://twitter.com/dpp Surf the harmonics -- You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to lift...@googlegroups.com. To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.comliftweb%2bunsubscr...@googlegroups.com . For more options, visit this group at http://groups.google.com/group/liftweb?hl=en. -- Scala中文社区: http://groups.google.com/group/scalacn -- You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to lift...@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: Fwd: Watch Foursquare Lift talk live from NY
On Dec 7, 7:36 pm, David Pollak feeder.of.the.be...@gmail.com wrote: On Mon, Dec 7, 2009 at 6:59 PM, Peter Robinett pe...@bubblefoundry.comwrote: One thing mentioned briefly in the talk that I'd like to know more about is oAuth Server code. Is anyone working on that? It's on my to-do list. This is something we'll need at EQUAL Networks within a month or two. Do you think you'll get to it within that time period? I'm happy to take a stab at it first, though I know it's not trivial (I've only written oAuth clients, not servers). Peter -- You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to lift...@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.
Re: [Lift] Re: Multi-Database Transactions
deadfolk deadf...@gmail.com writes:
Hi Jeppe - thanks for your response.
So, am I correct in saying that I just need to do something like
this? (not tested code - just an approximation)
//Assuming fooDb and barDb are some form of connection wrapper...
S.addAround(List(new LoanWrapper {
def apply[T](f: = T): T = {
fooDb.begin
barDb.begin
try {
val result = f
barDb.commit
fooDb.commit
result
}
catch {
case e = {
barDb.rollback
fooDb.rollback
}
}
}
}))
Something like that yes :-)
/Jeppe
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[Lift] Re: UTF-8 Characters
Thanks, David, \u00B0 did it. Peter On Dec 7, 7:35 pm, David Pollak feeder.of.the.be...@gmail.com wrote: Peter, My understanding is that JavaScript strings must be ASCII or escaped to Unicode: \u4455 (or whatever the unicode character is for degrees). Thanks, David On Mon, Dec 7, 2009 at 7:14 PM, Peter Robinett pe...@bubblefoundry.comwrote: Hi all, I just discovered that XHTML pages do not support all the character entity references HTML does[1]. In my case that means switching from deg; to ° in my Javascript file. This is fine except that I am now getting a garbled character. My file is encoded in UTF-8 and Maven is using UTF-8[2], so I'm stumped about why it is happening. I could just switch to an HTML doctype but I'm interested in understanding everything that's happening here. Any suggestions? Peter [1]: http://www.bubblefoundry.com/blog/2009/12/html-and-xml-character-enco... [2]: http://maven.apache.org/plugins/maven-resources-plugin/examples/encod... -- You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to lift...@googlegroups.com. To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.comliftweb%2bunsubscr...@googlegroups.com . For more options, visit this group at http://groups.google.com/group/liftweb?hl=en. -- Lift, the simply functional web frameworkhttp://liftweb.net Beginning Scalahttp://www.apress.com/book/view/1430219890 Follow me:http://twitter.com/dpp Surf the harmonics -- You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to lift...@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.
Re: [Lift] Re: Multi-Database Transactions
On Tue, Dec 8, 2009 at 11:57 AM, Jeppe Nejsum Madsen je...@ingolfs.dkwrote:
deadfolk deadf...@gmail.com writes:
Hi Jeppe - thanks for your response.
So, am I correct in saying that I just need to do something like
this? (not tested code - just an approximation)
//Assuming fooDb and barDb are some form of connection wrapper...
S.addAround(List(new LoanWrapper {
def apply[T](f: = T): T = {
fooDb.begin
barDb.begin
try {
val result = f
barDb.commit
fooDb.commit
result
}
catch {
case e = {
barDb.rollback
fooDb.rollback
}
}
}
}))
Something like that yes :-)
... with automatic transaction retries, and very verbose error messages if
one transaction commits and not the other? :)
alex
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Re: [Lift] Foreign Key constraints are not created by schemify
OK, I've run into a snag. Schemifier does support foreign key creation, as
do most of the database vendors. The ManyToMany Mapper support, however,
seems to expect no foreign key constraints, since it's explicitly testing
broken refs in the ManyToManySpecs tests:
ManyToMany should {
skip broken joins in children in {
setupDB
val person = createPerson
person.companies.joins.length must_== 10
person.companies.all.length must_== 8
}
...
I wonder if we should have FK generation be a configuration parameter for
schemify. I could change the code so that the default schemify method
continues to generate DDL without FK constraints, but add a second schemify
method that takes a boolean parameter controlling whether FKs are generated.
That, coupled with the DriverType.supportsForeignKeys_?, would allow people
to add FKs if they want. Thoughts?
Derek
On Sun, Dec 6, 2009 at 5:40 PM, Derek Chen-Becker dchenbec...@gmail.comwrote:
Absolutely. I have a PG 8.0, 8.1 and 8.3 instance set up for testing on my
home box because of the last time I made a PG-related change.
Derek
On Thu, Dec 3, 2009 at 2:48 PM, David Pollak
feeder.of.the.be...@gmail.com wrote:
On Thu, Dec 3, 2009 at 1:47 PM, Derek Chen-Becker
dchenbec...@gmail.comwrote:
I agree on both points (foreign keys and documentation). Please open a
ticket asking for proper foreign key support and I'll work on it next week.
Please make sure it works on PG 8.0/8.1 as there is at least 1 Lift app in
production against 8.0
Derek
On Wed, Dec 2, 2009 at 6:05 PM, Julian Backes
julianbac...@googlemail.com wrote:
Hi Derek,
It's been a long time since I looked at that particular code, so I may
have misspoke. Having said that, if it's currently disabled in the
driver I'm not sure why and I would want to review it before saying
that
it works properly in all cases.
I think the problem here is that the user expects (like I did) foreign
keys to be created if he uses mapper classes referencing other mapper
classes. This behaviour should at least be mentioned somewhere in the
documentation (btw, the documentation is in my opinion the biggest
problems of Lift at the moment).
I think, using a relational database without foreign keys is somehow not
very useful because you never really know whether you have referential
integrity...
It would be great if you looked at the code and enabled it. This would
really be an improvement for the mapper stuff in Lift 1.1
Julian
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Re: [Lift] how to keep last submited form field value
I think he might just mean the last submitted value for this particular form
instance, in which case you want a RequestVar, not a SessionVar.
On Tue, Dec 8, 2009 at 8:22 AM, Alex Boisvert alex.boisv...@gmail.comwrote:
You should use a SessionVar or a stateful snippet.
Here's how you would use a SessionVar,
object lastSubmittedDate extends SessionVar[Date](new Date)
...
bind(...,
date - SHtml.text(lastSubmittedDate.is, lastSubmittedDate(_),
class - datepicker),
alex
On Tue, Dec 8, 2009 at 1:42 AM, Jarod Liu liuyuan...@gmail.com wrote:
I want the date field keep the last submited value. I tried with
below code, but it's dosn't work. The date value(display in page)
awalys the date of today.
the form:
lift:mySnippet.form1 form=POST
f:date/
f:submit/
/lift:mySnippet.form1
MySnippet:
class MySnippet extends StatefulSnippet {
val dfmt = new SimpleDateFormat(-MM-dd)
var date = dfmt.format(new Date)
val dispatch: DispatchIt = {
case form1 = form1 _
}
def form1(in: NodeSeq): NodeSeq = {
bind(f, in,
date - SHtml.text(date, date = _,
class - datepicker),
submit - SHtml.submit(submit, println(submit: +
date))
)
}
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Re: [Lift] By default DB.buildLoanWrapper is eager (Jeppe, please read)
David Pollak feeder.of.the.be...@gmail.com writes:
Folks,
A month or so ago, I made the DB.buildLoanWrapper lazy. While it provided a
request-duration transaction, it did not actually pull the JDBC connection
from the pool until the first request for the JDBC connection. This led to
some problems. Basically:
object MySnippet {
def render = synchronized {
... do a query in here
}
}
If some threads acquired the JDBC connection before invoking the snippet
while others acquired the JDBC connection inside the synchronized (note it's
an object) render method, there could be a deadlock caused by JDBC pool
starvation. This is unexpected and not likely to manifest unless you've got
a non-trivial number of threads servicing requests.
To avoid this unexpected situation, I returned DB.buildLoanWrapper to being
eager, but you (and by you, I mean Jeppe), can also call
DB.buildLoanWrapper(false) which will have the newer, lazy behavior.
Thanks for the direct attention :-) I can see the problem, but just so
I understand this completely: Can we agree that,
1) The above pattern (global synchronized render method) is a rather bad
pattern, scalability wise?
2) If there are no such methods (in user code), lazy connection acquiring is
fine?
The question remains of course, if there are more such accidents waiting
to happen? I always try to avoid using synchronize in application code
(where possible :-) but I realize that Lift as a framework has to be
somewhat more low level.
Additionally, the default thread pool manager in Lift (ProtoDBVendor) will
allow temporary pool expansion. If there are no connections available after
waiting 50ms, the pool will be temporarily expanded.
Is there a limit to the expansion? (Before we know we've implemented
c3p0 :-)
[...]
/Jeppe
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Re: [Lift] Re: Fwd: Watch Foursquare Lift talk live from NY
Anyone still looking into uploading the video version of this prezo? M On Tue, Dec 8, 2009 at 12:38 PM, Peter Robinett pe...@bubblefoundry.com wrote: On Dec 7, 7:36 pm, David Pollak feeder.of.the.be...@gmail.com wrote: On Mon, Dec 7, 2009 at 6:59 PM, Peter Robinett pe...@bubblefoundry.comwrote: One thing mentioned briefly in the talk that I'd like to know more about is oAuth Server code. Is anyone working on that? It's on my to-do list. This is something we'll need at EQUAL Networks within a month or two. Do you think you'll get to it within that time period? I'm happy to take a stab at it first, though I know it's not trivial (I've only written oAuth clients, not servers). Peter -- You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to lift...@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. -- You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to lift...@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.
Re: [Lift] Re: Race conditions / database transaction isolation levels
cody koeninger c...@koeninger.org writes: On Dec 8, 2:19 am, Jeppe Nejsum Madsen je...@ingolfs.dk wrote: record will not be unlocked until the session times out I thought it was stated above that the transaction is scoped to the request by default, not the session? It is. But even if it wasn't I don't think select for update solves the problem of two users trying to edit the same record. A much better solution imo is to use optimistic locking. I'm not going to disagree with you there. However, are the lift devs really interested in spending time implementing an optimistic locking system? Who knows :-) As it stands, if I actually need data consistency with Lift, it looks like the choice is JPA. An optional pessimistic lock would make mapper a more realistic choice, and the implementation should be pretty blunt in terms of complexity (and drawbacks as you noted). Maybe I don't really understand what you mean when you say data consistency. A pessimistic lock is only useful within a single database transaction. In my experience, in a web app, a user transaction (such as loading a record, changing data, saving the record) is not covered by a single database transaction, but will span several. /Jeppe -- You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to lift...@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.
Re: [Lift] LiftConsole and JPA
It looks like the JTA jar isn't being added to the classpath for the LiftConsole runner. I've never touched scala:console, so I'm not sure what you would need to do to make it work. Off the top of my head, you might need to put the dependencies for JPA into the plugin config, but I'm not positive. Derek On Tue, Dec 8, 2009 at 1:16 PM, Janico Greifenberg j...@acm.org wrote: Hi, I've started to experiment with a Lift project that uses JPA for persistence. While it works just fine in the web application run with mvn jetty:run, I cannot use the model classes from the LiftConsole (mvn scala:console -DmainConsole=LiftConsole). When I try for example Model.find(classOf[Article], 1) I get the following error: java.lang.ClassNotFoundException: javax.transaction.SystemException at java.net.URLClassLoader$1.run(URLClassLoader.java:200) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(URLClassLoader.java:188) at java.lang.ClassLoader.loadClass(ClassLoader.java:315) at java.lang.ClassLoader.loadClass(ClassLoader.java:250) at java.lang.Clas... Model is the EntityManager that I created accorting to chapter 10 from the Lift book. Article is an entity class and 1 is an id that exists in the database. I'm using lift version 1.1-M7 and the following persistence.xml persistence persistence-unit name=jpa-dossier transaction-type=RESOURCE_LOCAL properties property name=hibernate.dialect value=org.hibernate.dialect.MySQLDialect/ property name=hibernate.connection.driver_class value=com.mysql.jdbc.Driver/ property name=hibernate.connection.url value=jdbc:mysql://localhost/dossier/ property name=hibernate.max_fetch_depth value=3/ property name=hibernate.show_sql value=true / property name=hibernate.hbm2ddl.auto value=update /property name=hibernate.connection.username value=*** /property property name=hibernate.connection.password value=***/property /properties /persistence-unit /persistence Is there something that I need to initialize to get this to work? So long Janico -- You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to lift...@googlegroups.com. To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.comliftweb%2bunsubscr...@googlegroups.com . For more options, visit this group at http://groups.google.com/group/liftweb?hl=en. -- You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to lift...@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.
Re: [Lift] Re: Fwd: Watch Foursquare Lift talk live from NY
Im sure n8han will put it on blip.tv when he gets a chance. Be patient, im sure it'll come soon :-) Cheers, Tim On 8 Dec 2009, at 20:50, Mateo Barraza wrote: Anyone still looking into uploading the video version of this prezo? M On Tue, Dec 8, 2009 at 12:38 PM, Peter Robinett pe...@bubblefoundry.com wrote: On Dec 7, 7:36 pm, David Pollak feeder.of.the.be...@gmail.com wrote: On Mon, Dec 7, 2009 at 6:59 PM, Peter Robinett pe...@bubblefoundry.comwrote: One thing mentioned briefly in the talk that I'd like to know more about is oAuth Server code. Is anyone working on that? It's on my to-do list. This is something we'll need at EQUAL Networks within a month or two. Do you think you'll get to it within that time period? I'm happy to take a stab at it first, though I know it's not trivial (I've only written oAuth clients, not servers). Peter -- You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to lift...@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. -- You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to lift...@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. -- You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to lift...@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: Fwd: Watch Foursquare Lift talk live from NY
N8han upped it a while ago: http://www.vimeo.com/8057986 On Dec 8, 4:08 pm, Timothy Perrett timo...@getintheloop.eu wrote: Im sure n8han will put it on blip.tv when he gets a chance. Be patient, im sure it'll come soon :-) Cheers, Tim On 8 Dec 2009, at 20:50, Mateo Barraza wrote: Anyone still looking into uploading the video version of this prezo? M On Tue, Dec 8, 2009 at 12:38 PM, Peter Robinett pe...@bubblefoundry.com wrote: On Dec 7, 7:36 pm, David Pollak feeder.of.the.be...@gmail.com wrote: On Mon, Dec 7, 2009 at 6:59 PM, Peter Robinett pe...@bubblefoundry.comwrote: One thing mentioned briefly in the talk that I'd like to know more about is oAuth Server code. Is anyone working on that? It's on my to-do list. This is something we'll need at EQUAL Networks within a month or two. Do you think you'll get to it within that time period? I'm happy to take a stab at it first, though I know it's not trivial (I've only written oAuth clients, not servers). Peter -- You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to lift...@googlegroups.com. To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.com. For more options, visit this group athttp://groups.google.com/group/liftweb?hl=en. -- You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to lift...@googlegroups.com. To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.com. For more options, visit this group athttp://groups.google.com/group/liftweb?hl=en. -- You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to lift...@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: I was giving a short interview for JavaBooks.org about Lift Scala
Haha, upvoted :) On Dec 9, 3:57 am, Marius marius.dan...@gmail.com wrote: You can vote up or down here :) http://www.dzone.com/links/video_interview_with_marius_danciu_author_... Br's, Marius On Dec 7, 9:59 am, Marius marius.dan...@gmail.com wrote: Hi, After a long day I ended up giving this interview. http://vimeo.com/7986506 Br's, Marius P.S. Please forgive my crappy English. -- You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to lift...@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.
Re: [Lift] Re: Fwd: Watch Foursquare Lift talk live from NY
that last link works. THanks Tyler! M On Tue, Dec 8, 2009 at 2:18 PM, TylerWeir tyler.w...@gmail.com wrote: N8han upped it a while ago: http://www.vimeo.com/8057986 On Dec 8, 4:08 pm, Timothy Perrett timo...@getintheloop.eu wrote: Im sure n8han will put it on blip.tv when he gets a chance. Be patient, im sure it'll come soon :-) Cheers, Tim On 8 Dec 2009, at 20:50, Mateo Barraza wrote: Anyone still looking into uploading the video version of this prezo? M On Tue, Dec 8, 2009 at 12:38 PM, Peter Robinett pe...@bubblefoundry.com wrote: On Dec 7, 7:36 pm, David Pollak feeder.of.the.be...@gmail.com wrote: On Mon, Dec 7, 2009 at 6:59 PM, Peter Robinett pe...@bubblefoundry.comwrote: One thing mentioned briefly in the talk that I'd like to know more about is oAuth Server code. Is anyone working on that? It's on my to-do list. This is something we'll need at EQUAL Networks within a month or two. Do you think you'll get to it within that time period? I'm happy to take a stab at it first, though I know it's not trivial (I've only written oAuth clients, not servers). Peter -- You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to lift...@googlegroups.com. To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.com. For more options, visit this group athttp://groups.google.com/group/liftweb?hl=en. -- You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to lift...@googlegroups.com. To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.com. For more options, visit this group athttp://groups.google.com/group/liftweb?hl=en. -- You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to lift...@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. -- You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to lift...@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: Race conditions / database transaction isolation levels
On Dec 8, 2:53 pm, Jeppe Nejsum Madsen je...@ingolfs.dk wrote: Maybe I don't really understand what you mean when you say data consistency. A pessimistic lock is only useful within a single database transaction. In my experience, in a web app, a user transaction (such as loading a record, changing data, saving the record) is not covered by a single database transaction, but will span several. Yes, as you say, optimistic would be better for conversations that span multiple transactions. With pessimistic locking I could at least check-then-act before saving the record in places where it was critical. Otherwise e.g. lost updates can become an issue. Again, as it stands, it looks like lift gives me neither (short of sprinkling InsecureSql about), and one or the other seems to be required based on pain points I've encountered in previous projects. If there's someone running production lift sites with non-jpa persistence that manages concurrency, I'm all ears. -- You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to lift...@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.
Re: [Lift] Foreign Key constraints are not created by schemify
OK, I've run into a snag. Schemifier does support foreign key creation, as do most of the database vendors. The ManyToMany Mapper support, however, seems to expect no foreign key constraints, since it's explicitly testing broken refs in the ManyToManySpecs tests: I do not really know something about the ManyToMany stuff in mapper but in my opinion, it should support foreign keys. You always have situations where you change something in the database by hand. In such cases, it's always good to have foreign keys... I wonder if we should have FK generation be a configuration parameter for schemify. I could change the code so that the default schemify method continues to generate DDL without FK constraints, but add a second schemify method that takes a boolean parameter controlling whether FKs are generated. Sounds good to me That, coupled with the DriverType.supportsForeignKeys_?, would allow people to add FKs if they want. Thoughts? I had the problem that when I wanted to test the foreign key support, I had to recompile most parts of lift with DriverType.supportsForeignKeys_? set to true (which was no fun because I had to download many many dependencies from the incredible slow maven repo). Wouldn't it make sense to allow setting DriverType.supportsForeignKeys_? at runtime? This would be useful when, for example, some database system does not support foreign keys when the corresponding Lift version is released but starts supporting it two weeks later. In such a situation, I do not want do recompile Lift just to have DriverType.supportsForeignKeys_? set to true... Julian -- You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to lift...@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] lift-stamped - Traits for logging changes MetaMapper-Records
Hi guys, thanks to this great community i could finish a project today which i found worth to be made available public. The topic says it all, check it out at https://github.com/fbettag/lift-stamped/ Tell me what you guys think! best regards -- You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to lift...@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: Sharing a RequestVar Across CometActors
This was from a while ago but I just wanted to note that it works
well, though I do have some issues with when render is then called,
since localSetup is no longer used.
Also, why does setupComet take a boxed name parameter?
Thanks,
Peter
On Oct 12, 8:15 am, David Pollak feeder.of.the.be...@gmail.com
wrote:
On Mon, Oct 12, 2009 at 7:04 AM, Peter Robinett
pe...@bubblefoundry.comwrote:
Hi all,
I have a question about whether it's possible to access RequestVars in
CometActors (specifically, to access them in localSetup). I believe it
is, based upon a recent thread about sharing them among snippets[1]
and an older thread about Actors accessing S[2]. But first, some
background, as I may be going around this in totally the wrong way and
would appreciate your thoughts.
I am making a dashboard to display a bunch of data that will be coming
in (near) real-time and I want to use Comet to make sure the user
always sees the most update-to-date information in their dashboard. I
have a variety of different aggregate values to display that fall into
several categories together, so I can group the calculations together.
I think this sectioning will prove useful in the future, as I can
imagine wanting to display some but not all of these sections on
another page.
Because the CometActors all will need to know the dashboard to which
they belong, my thought was to share this Mapper instance via a
RequestVar.
You can create messages to be sent to a CometActor upon setup:
for {
session - S.session
} session.setupComet(Dashboard, Empty, ABunchOfInfo(sessionInfo))
When the Dashboard comet actor is created, it will be sent the
ABunchOfInfo message. In this way you can send current request state info
to a CometActor.
Does this help?
I call my snippet like so:
lift:Dashboard.display
/lift:Dashboard.display
The snippet defines a RequestVar called myDashboard and then returns a
NodeSeq:
div
lift:comet type=DashboardHelper1
/lift:comet
//
lift:comet type=DashboardHelperN
/lift:comet
/div
While I can get this all to compile, myDashboard is empty in the
CometActors. I understand that CometActors basically exist outside of
the normal request cycle, so would this be the reason why my
RequestVar is always empty? I was hoping that it would still be in the
request cycle when localSetup is called, but I can see why that would
be unrealistic.
I just tried using SessionVar instead of a RequestVar and this works.
However, I'm worried about having to be more careful about emptying
the SessionVar if requesting a different dashboard than if I would if
I were using a RequestVar. Is this an unrealistic fear?
What do you think is the best way to proceed?
Thanks for your help,
Peter Robinett
[1]:
http://groups.google.com/group/liftweb/browse_thread/thread/5cf4ae2ec...
[2]:
http://groups.google.com/group/liftweb/browse_thread/thread/274cfc9d2...
--
Lift, the simply functional web frameworkhttp://liftweb.net
Beginning Scalahttp://www.apress.com/book/view/1430219890
Follow me:http://twitter.com/dpp
Surf the harmonics
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[Lift] Re: Sharing a RequestVar Across CometActors
Specifically, I have:
case Setup(newDatacenter) = {
datacenter = Full(newDatacenter)
DatacenterBroker.datacenters(newDatacenter.id) ! AddAListener
(this)
DatacenterBroker.datacenters(newDatacenter.id) !? GetPackets
match {
case Packets(packets) = {
savePackets(packets)
reRender(true)
}
}
}
My problem is that reRender, while sending the data, doesn't seem to
be causing the new script code to be merged into the document's
head, leaving me with: divheadscript.../script/head/div
in the body.
It's not clear to me whether the script contents are being evaluated
(I would think it shouldn't, since there should only be 1 head tag in
an HTML document) and, even if they are, whether anything happens
since they are all wrapped in a jQuery(document).ready() call.
Peter
On Dec 8, 7:05 pm, Peter Robinett pe...@bubblefoundry.com wrote:
This was from a while ago but I just wanted to note that it works
well, though I do have some issues with when render is then called,
since localSetup is no longer used.
Also, why does setupComet take a boxed name parameter?
Thanks,
Peter
On Oct 12, 8:15 am, David Pollak feeder.of.the.be...@gmail.com
wrote:
On Mon, Oct 12, 2009 at 7:04 AM, Peter Robinett
pe...@bubblefoundry.comwrote:
Hi all,
I have a question about whether it's possible to access RequestVars in
CometActors (specifically, to access them in localSetup). I believe it
is, based upon a recent thread about sharing them among snippets[1]
and an older thread about Actors accessing S[2]. But first, some
background, as I may be going around this in totally the wrong way and
would appreciate your thoughts.
I am making a dashboard to display a bunch of data that will be coming
in (near) real-time and I want to use Comet to make sure the user
always sees the most update-to-date information in their dashboard. I
have a variety of different aggregate values to display that fall into
several categories together, so I can group the calculations together.
I think this sectioning will prove useful in the future, as I can
imagine wanting to display some but not all of these sections on
another page.
Because the CometActors all will need to know the dashboard to which
they belong, my thought was to share this Mapper instance via a
RequestVar.
You can create messages to be sent to a CometActor upon setup:
for {
session - S.session
} session.setupComet(Dashboard, Empty, ABunchOfInfo(sessionInfo))
When the Dashboard comet actor is created, it will be sent the
ABunchOfInfo message. In this way you can send current request state info
to a CometActor.
Does this help?
I call my snippet like so:
lift:Dashboard.display
/lift:Dashboard.display
The snippet defines a RequestVar called myDashboard and then returns a
NodeSeq:
div
lift:comet type=DashboardHelper1
/lift:comet
//
lift:comet type=DashboardHelperN
/lift:comet
/div
While I can get this all to compile, myDashboard is empty in the
CometActors. I understand that CometActors basically exist outside of
the normal request cycle, so would this be the reason why my
RequestVar is always empty? I was hoping that it would still be in the
request cycle when localSetup is called, but I can see why that would
be unrealistic.
I just tried using SessionVar instead of a RequestVar and this works.
However, I'm worried about having to be more careful about emptying
the SessionVar if requesting a different dashboard than if I would if
I were using a RequestVar. Is this an unrealistic fear?
What do you think is the best way to proceed?
Thanks for your help,
Peter Robinett
[1]:
http://groups.google.com/group/liftweb/browse_thread/thread/5cf4ae2ec...
[2]:
http://groups.google.com/group/liftweb/browse_thread/thread/274cfc9d2...
--
Lift, the simply functional web frameworkhttp://liftweb.net
Beginning Scalahttp://www.apress.com/book/view/1430219890
Follow me:http://twitter.com/dpp
Surf the harmonics
--
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[Lift] Re: Fwd: Watch Foursquare Lift talk live from NY
I've been with Foursquare for four months, and during this time I've decided to change their infrastructure to Scala and Lift. LOL. Good luck hiring devs for this, guys. You will need it. On Dec 8, 1:49 pm, Mateo Barraza mateo.barr...@gmail.com wrote: that last link works. THanks Tyler! M On Tue, Dec 8, 2009 at 2:18 PM, TylerWeir tyler.w...@gmail.com wrote: N8han upped it a while ago:http://www.vimeo.com/8057986 On Dec 8, 4:08 pm, Timothy Perrett timo...@getintheloop.eu wrote: Im sure n8han will put it on blip.tv when he gets a chance. Be patient, im sure it'll come soon :-) Cheers, Tim On 8 Dec 2009, at 20:50, Mateo Barraza wrote: Anyone still looking into uploading the video version of this prezo? M On Tue, Dec 8, 2009 at 12:38 PM, Peter Robinett pe...@bubblefoundry.com wrote: On Dec 7, 7:36 pm, David Pollak feeder.of.the.be...@gmail.com wrote: On Mon, Dec 7, 2009 at 6:59 PM, Peter Robinett pe...@bubblefoundry.comwrote: One thing mentioned briefly in the talk that I'd like to know more about is oAuth Server code. Is anyone working on that? It's on my to-do list. This is something we'll need at EQUAL Networks within a month or two. Do you think you'll get to it within that time period? I'm happy to take a stab at it first, though I know it's not trivial (I've only written oAuth clients, not servers). Peter -- You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to lift...@googlegroups.com. To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.com. For more options, visit this group athttp://groups.google.com/group/liftweb?hl=en. -- You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to lift...@googlegroups.com. To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.com. For more options, visit this group athttp://groups.google.com/group/liftweb?hl=en. -- You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to lift...@googlegroups.com. To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.com. For more options, visit this group athttp://groups.google.com/group/liftweb?hl=en. -- You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to lift...@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.
Re: [Lift] Re: Fwd: Watch Foursquare Lift talk live from NY
On Tue, Dec 8, 2009 at 7:34 PM, DMB combust...@gmail.com wrote: I've been with Foursquare for four months, and during this time I've decided to change their infrastructure to Scala and Lift. LOL. Good luck hiring devs for this, guys. You will need it. Why do you say this? There is an increasing supply of talented Scala developers. I have nearly a dozen quality developers I know who would rather be doing Scala work than whatever they're doing now... just come to a Scala BASE meeting to meet some of them. There is also an increasing demand for Scala developers between Twitter, LinkedIn, and KaChing, etc. Plus, it's a great match... by and large, Scala developers are the intellectually curious sorts who are willing to do extra work in order to get the benefits of Scala... this is an ideal profile for a start-up like FourSquare. And FourSquare is a wicked hot start-up that offers tremendous upside to anyone who joins now (like Twitter did 2 years ago.) In fact, Scala is a great filter for FourSquare... they get to cherry-pick from a relatively small, tremendously talented pool of developers. If I were single and 20 years younger, I'd be updating and sending my resume to FourSquare... and I haven't updated (or had to update) my resume in 5 years. On Dec 8, 1:49 pm, Mateo Barraza mateo.barr...@gmail.com wrote: that last link works. THanks Tyler! M On Tue, Dec 8, 2009 at 2:18 PM, TylerWeir tyler.w...@gmail.com wrote: N8han upped it a while ago:http://www.vimeo.com/8057986 On Dec 8, 4:08 pm, Timothy Perrett timo...@getintheloop.eu wrote: Im sure n8han will put it on blip.tv when he gets a chance. Be patient, im sure it'll come soon :-) Cheers, Tim On 8 Dec 2009, at 20:50, Mateo Barraza wrote: Anyone still looking into uploading the video version of this prezo? M On Tue, Dec 8, 2009 at 12:38 PM, Peter Robinett pe...@bubblefoundry.com wrote: On Dec 7, 7:36 pm, David Pollak feeder.of.the.be...@gmail.com wrote: On Mon, Dec 7, 2009 at 6:59 PM, Peter Robinett pe...@bubblefoundry.comwrote: One thing mentioned briefly in the talk that I'd like to know more about is oAuth Server code. Is anyone working on that? It's on my to-do list. This is something we'll need at EQUAL Networks within a month or two. Do you think you'll get to it within that time period? I'm happy to take a stab at it first, though I know it's not trivial (I've only written oAuth clients, not servers). Peter -- You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to lift...@googlegroups.com. To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.comliftweb%2bunsubscr...@googlegroups.com . For more options, visit this group athttp:// groups.google.com/group/liftweb?hl=en. -- You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to lift...@googlegroups.com. To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.comliftweb%2bunsubscr...@googlegroups.com . For more options, visit this group athttp:// groups.google.com/group/liftweb?hl=en. -- You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to lift...@googlegroups.com. To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.comliftweb%2bunsubscr...@googlegroups.com . For more options, visit this group athttp:// groups.google.com/group/liftweb?hl=en. -- You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to lift...@googlegroups.com. To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.comliftweb%2bunsubscr...@googlegroups.com . For more options, visit this group at http://groups.google.com/group/liftweb?hl=en. -- 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 -- You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to lift...@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: how to keep last submited form field value
Thank you for you guys answer. RequestVar is what I needed.
On Dec 9, 4:34 am, Derek Chen-Becker dchenbec...@gmail.com wrote:
I think he might just mean the last submitted value for this particular form
instance, in which case you want a RequestVar, not a SessionVar.
On Tue, Dec 8, 2009 at 8:22 AM, Alex Boisvert alex.boisv...@gmail.comwrote:
You should use a SessionVar or a stateful snippet.
Here's how you would use a SessionVar,
object lastSubmittedDate extends SessionVar[Date](new Date)
...
bind(...,
date - SHtml.text(lastSubmittedDate.is, lastSubmittedDate(_),
class - datepicker),
alex
On Tue, Dec 8, 2009 at 1:42 AM, Jarod Liu liuyuan...@gmail.com wrote:
I want the date field keep the last submited value. I tried with
below code, but it's dosn't work. The date value(display in page)
awalys the date of today.
the form:
lift:mySnippet.form1 form=POST
f:date/
f:submit/
/lift:mySnippet.form1
MySnippet:
class MySnippet extends StatefulSnippet {
val dfmt = new SimpleDateFormat(-MM-dd)
var date = dfmt.format(new Date)
val dispatch: DispatchIt = {
case form1 = form1 _
}
def form1(in: NodeSeq): NodeSeq = {
bind(f, in,
date - SHtml.text(date, date = _,
class - datepicker),
submit - SHtml.submit(submit, println(submit: +
date))
)
}
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[Lift] Re: how to keep last submited form field value
Thank you for you guys answer. RequestVar is what I needed.
On Dec 9, 4:34 am, Derek Chen-Becker dchenbec...@gmail.com wrote:
I think he might just mean the last submitted value for this particular form
instance, in which case you want a RequestVar, not a SessionVar.
On Tue, Dec 8, 2009 at 8:22 AM, Alex Boisvert alex.boisv...@gmail.comwrote:
You should use a SessionVar or a stateful snippet.
Here's how you would use a SessionVar,
object lastSubmittedDate extends SessionVar[Date](new Date)
...
bind(...,
date - SHtml.text(lastSubmittedDate.is, lastSubmittedDate(_),
class - datepicker),
alex
On Tue, Dec 8, 2009 at 1:42 AM, Jarod Liu liuyuan...@gmail.com wrote:
I want the date field keep the last submited value. I tried with
below code, but it's dosn't work. The date value(display in page)
awalys the date of today.
the form:
lift:mySnippet.form1 form=POST
f:date/
f:submit/
/lift:mySnippet.form1
MySnippet:
class MySnippet extends StatefulSnippet {
val dfmt = new SimpleDateFormat(-MM-dd)
var date = dfmt.format(new Date)
val dispatch: DispatchIt = {
case form1 = form1 _
}
def form1(in: NodeSeq): NodeSeq = {
bind(f, in,
date - SHtml.text(date, date = _,
class - datepicker),
submit - SHtml.submit(submit, println(submit: +
date))
)
}
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[Lift] Re: How can bind more than one element in the render method in CometActor ?
Whether I have to create six comet to archieve this purpose ?
I want to use only one comet to update the six parts.
The layouf is like this:
###
part1 part2
part3 part6
part4
part5
###
###
...
lift:comet type=TestComet
info:One/
/lift:comet
span/span
lift:comet type=TestComet
info:Two/
/lift:comet
span/span
lift:comet type=TestComet
info:Three
/lift:comet
span/span
lift:comet type=TestComet
info:Four
/lift:comet
...
lift:comet type=TestComet
info:Sixr
/lift:comet
###
Thanks!
Cheers,
Neil
On Dec 9, 12:49 am, Neil.Lv anim...@gmail.com wrote:
BTW, when the partialUpdate method is called , the result is
correct.
But when refreshing the browser or open a new browser, the result
also is 3,
Cheers,
Neil
On Dec 9, 12:44 am, Neil.Lv anim...@gmail.com wrote:
Hi all,
How can bind more than one element in the render method in
CometActor ?
The msg1 is an
###
class TestComet extends CometActor {
override def defaultPrefix = Full(info)
...
def render = { bind(One - span1/span,
Two - span2/span,
Three - span3/span,
Four - span4/span,
Five - span5/span,
Six - span6/span ) }
...}
###
And in the index.html page
###
...
lift:comet type=TestComet
info:One/
/lift:comet
span/span
lift:comet type=TestComet
info:Two/
/lift:comet
span/span
lift:comet type=TestComet
info:Three
/lift:comet
span/span
lift:comet type=TestComet
info:Four
/lift:comet
...
###
And these four comet all show the same result span3/span,
not 1, 2, 3, 4, 5, 6
I don't know what's wrong with it ?
Dose anybody know what's the problem with this render metho?
Thanks for any help.
Cheers,
Neil
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Re: [Lift] Re: How can bind more than one element in the render method in CometActor ?
Neil,
bind() works the same everywhere... CometActors, Helpers.bind, etc.
If you are having a problem with bind, I would strongly recommend writing a
test with a template that allows your to figure out how bind works and then
take the template and binding and put it in your CometActor.
Thanks,
David
On Tue, Dec 8, 2009 at 7:51 PM, Neil.Lv anim...@gmail.com wrote:
Whether I have to create six comet to archieve this purpose ?
I want to use only one comet to update the six parts.
The layouf is like this:
###
part1 part2
part3 part6
part4
part5
###
###
...
lift:comet type=TestComet
info:One/
/lift:comet
span/span
lift:comet type=TestComet
info:Two/
/lift:comet
span/span
lift:comet type=TestComet
info:Three
/lift:comet
span/span
lift:comet type=TestComet
info:Four
/lift:comet
...
lift:comet type=TestComet
info:Sixr
/lift:comet
###
Thanks!
Cheers,
Neil
On Dec 9, 12:49 am, Neil.Lv anim...@gmail.com wrote:
BTW, when the partialUpdate method is called , the result is
correct.
But when refreshing the browser or open a new browser, the result
also is 3,
Cheers,
Neil
On Dec 9, 12:44 am, Neil.Lv anim...@gmail.com wrote:
Hi all,
How can bind more than one element in the render method in
CometActor ?
The msg1 is an
###
class TestComet extends CometActor {
override def defaultPrefix = Full(info)
...
def render = { bind(One - span1/span,
Two - span2/span,
Three - span3/span,
Four - span4/span,
Five - span5/span,
Six - span6/span ) }
...}
###
And in the index.html page
###
...
lift:comet type=TestComet
info:One/
/lift:comet
span/span
lift:comet type=TestComet
info:Two/
/lift:comet
span/span
lift:comet type=TestComet
info:Three
/lift:comet
span/span
lift:comet type=TestComet
info:Four
/lift:comet
...
###
And these four comet all show the same result span3/span,
not 1, 2, 3, 4, 5, 6
I don't know what's wrong with it ?
Dose anybody know what's the problem with this render metho?
Thanks for any help.
Cheers,
Neil
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[Lift] Re: Fwd: Watch Foursquare Lift talk live from NY
cherry-pick from a relatively small, tremendously talented pool of developers Startups never get to cherry pick from anything since they don't have the dough to pay for best work. If I'm a kick ass dev, why would I trade my six figure salary for a five figure one with a tiny sliver of equity which may or may not actually be worth anything in the end? In any startup, I would emphasize readability/maintainability of code, and broad availability of lower cost workforce. I mean, I would not LOL if he switched things over to Grails, for instance. Both Java and RoR devs feel comfortable with that, it's easy as a pie, and it's a massive improvement over PHP. Sure, it's not as fast as Lift, but I've found it to be more concise for most things, since the framework does quite a bit more work for you. More importantly, it's better documented, it takes far less time to build a site with it, and to train new devs who are not familiar with the framework. If I were doing a startup, Scala and Lift would surely not be the top choices. They could work for an established business with a solid developer core though (like LinkedIn, for instance). Don't get me wrong, I like both Lift and Scala (enough to tinker with both for extended periods of time), but I don't foresee any kind of mainstream adoption for either of the two. 90% of developers out there can't grasp even Java fully, and the remaining 10% make enough money on Java to stick with it. On Dec 8, 7:47 pm, David Pollak feeder.of.the.be...@gmail.com wrote: On Tue, Dec 8, 2009 at 7:34 PM, DMB combust...@gmail.com wrote: I've been with Foursquare for four months, and during this time I've decided to change their infrastructure to Scala and Lift. LOL. Good luck hiring devs for this, guys. You will need it. Why do you say this? There is an increasing supply of talented Scala developers. I have nearly a dozen quality developers I know who would rather be doing Scala work than whatever they're doing now... just come to a Scala BASE meeting to meet some of them. There is also an increasing demand for Scala developers between Twitter, LinkedIn, and KaChing, etc. Plus, it's a great match... by and large, Scala developers are the intellectually curious sorts who are willing to do extra work in order to get the benefits of Scala... this is an ideal profile for a start-up like FourSquare. And FourSquare is a wicked hot start-up that offers tremendous upside to anyone who joins now (like Twitter did 2 years ago.) In fact, Scala is a great filter for FourSquare... they get to cherry-pick from a relatively small, tremendously talented pool of developers. If I were single and 20 years younger, I'd be updating and sending my resume to FourSquare... and I haven't updated (or had to update) my resume in 5 years. On Dec 8, 1:49 pm, Mateo Barraza mateo.barr...@gmail.com wrote: that last link works. THanks Tyler! M On Tue, Dec 8, 2009 at 2:18 PM, TylerWeir tyler.w...@gmail.com wrote: N8han upped it a while ago:http://www.vimeo.com/8057986 On Dec 8, 4:08 pm, Timothy Perrett timo...@getintheloop.eu wrote: Im sure n8han will put it on blip.tv when he gets a chance. Be patient, im sure it'll come soon :-) Cheers, Tim On 8 Dec 2009, at 20:50, Mateo Barraza wrote: Anyone still looking into uploading the video version of this prezo? M On Tue, Dec 8, 2009 at 12:38 PM, Peter Robinett pe...@bubblefoundry.com wrote: On Dec 7, 7:36 pm, David Pollak feeder.of.the.be...@gmail.com wrote: On Mon, Dec 7, 2009 at 6:59 PM, Peter Robinett pe...@bubblefoundry.comwrote: One thing mentioned briefly in the talk that I'd like to know more about is oAuth Server code. Is anyone working on that? It's on my to-do list. This is something we'll need at EQUAL Networks within a month or two. Do you think you'll get to it within that time period? I'm happy to take a stab at it first, though I know it's not trivial (I've only written oAuth clients, not servers). Peter -- You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to lift...@googlegroups.com. To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.comliftweb%2bunsubscr...@googlegroups.com . For more options, visit this group athttp:// groups.google.com/group/liftweb?hl=en. -- You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to lift...@googlegroups.com. To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.comliftweb%2bunsubscr...@googlegroups.com . For more options, visit this group athttp:// groups.google.com/group/liftweb?hl=en. -- You received this message because you are subscribed to the Google Groups Lift group. To post to this
[Lift] Re: How can bind more than one element in the render method in CometActor ?
Here is the code:
###
override def defaultPrefix = Full(info)
def show(in: NodeSeq): NodeSeq = {
bind(show, in,
list1 - Text(1),
list2 - Text(2)
)
}
def render = {
bind(
list1 - Text(1),
list2 - Text(2)
)
}
###
In the index.html page:
###
lift:comet type=ForumComet
info.show:list1/
info.show:list2/
/lift:comet
lift:comet type=ForumComet
info.list1/
info.list2/
/lift:comet
###
Both of them don't work, In the Snippet, the render method could be
write like this:
###
def render(in : NodeSeq) : NodeSeq = {
bind( info, in,
list1 - Text(1),
list2 - Text(2)
)
}
###
It's different with Comet's render method .
Thanks!
Cheers,
Neil
On Dec 9, 11:53 am, David Pollak feeder.of.the.be...@gmail.com
wrote:
Neil,
bind() works the same everywhere... CometActors, Helpers.bind, etc.
If you are having a problem with bind, I would strongly recommend writing a
test with a template that allows your to figure out how bind works and then
take the template and binding and put it in your CometActor.
Thanks,
David
On Tue, Dec 8, 2009 at 7:51 PM, Neil.Lv anim...@gmail.com wrote:
Whether I have to create six comet to archieve this purpose ?
I want to use only one comet to update the six parts.
The layouf is like this:
###
part1 part2
part3 part6
part4
part5
###
###
...
lift:comet type=TestComet
info:One/
/lift:comet
span/span
lift:comet type=TestComet
info:Two/
/lift:comet
span/span
lift:comet type=TestComet
info:Three
/lift:comet
span/span
lift:comet type=TestComet
info:Four
/lift:comet
...
lift:comet type=TestComet
info:Sixr
/lift:comet
###
Thanks!
Cheers,
Neil
On Dec 9, 12:49 am, Neil.Lv anim...@gmail.com wrote:
BTW, when the partialUpdate method is called , the result is
correct.
But when refreshing the browser or open a new browser, the result
also is 3,
Cheers,
Neil
On Dec 9, 12:44 am, Neil.Lv anim...@gmail.com wrote:
Hi all,
How can bind more than one element in the render method in
CometActor ?
The msg1 is an
###
class TestComet extends CometActor {
override def defaultPrefix = Full(info)
...
def render = { bind(One - span1/span,
Two - span2/span,
Three - span3/span,
Four - span4/span,
Five - span5/span,
Six - span6/span ) }
...}
###
And in the index.html page
###
...
lift:comet type=TestComet
info:One/
/lift:comet
span/span
lift:comet type=TestComet
info:Two/
/lift:comet
span/span
lift:comet type=TestComet
info:Three
/lift:comet
span/span
lift:comet type=TestComet
info:Four
/lift:comet
...
###
And these four comet all show the same result span3/span,
not 1, 2, 3, 4, 5, 6
I don't know what's wrong with it ?
Dose anybody know what's the problem with this render metho?
Thanks for any help.
Cheers,
Neil
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Beginning Scalahttp://www.apress.com/book/view/1430219890
Follow me:http://twitter.com/dpp
Surf the harmonics
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[Lift] Re: lift-stamped - Traits for logging changes MetaMapper-Records
Very nice work, I don't deal with records but it looks very useful. On Dec 9, 1:33 pm, Franz Bettag fr...@bett.ag wrote: Hi guys, thanks to this great community i could finish a project today which i found worth to be made available public. The topic says it all, check it out athttps://github.com/fbettag/lift-stamped/ Tell me what you guys think! best regards -- You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to lift...@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.
Re: [Lift] lift-stamped - Traits for logging changes MetaMapper-Records
That's great! What's more, I'm not sure whether every model need creator/createDate,lastUpdator/lastUpdateDate? I want to have a Action Log, which could record user activities. Any model change history or change object could restore from action log Did any one do something about this? On Wed, Dec 9, 2009 at 10:33 AM, Franz Bettag fr...@bett.ag wrote: Hi guys, thanks to this great community i could finish a project today which i found worth to be made available public. The topic says it all, check it out at https://github.com/fbettag/lift-stamped/ Tell me what you guys think! best regards -- You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to lift...@googlegroups.com. To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.comliftweb%2bunsubscr...@googlegroups.com . For more options, visit this group at http://groups.google.com/group/liftweb?hl=en. -- Scala中文社区: http://groups.google.com/group/scalacn -- You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to lift...@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.
Re: [Lift] Re: Fwd: Watch Foursquare Lift talk live from NY
DMB combust...@gmail.com writes: cherry-pick from a relatively small, tremendously talented pool of developers Startups never get to cherry pick from anything since they don't have the dough to pay for best work. If I'm a kick ass dev, why would I trade my six figure salary for a five figure one with a tiny sliver of equity which may or may not actually be worth anything in the end? Because you're sick and tired of maintaining other peoples EJB/Struts/whatever application? In any startup, I would emphasize readability/maintainability of code, and broad availability of lower cost workforce. That sounds more like an enterprise mindset to me. [...] Don't get me wrong, I like both Lift and Scala (enough to tinker with both for extended periods of time), but I don't foresee any kind of mainstream adoption for either of the two. Me neither, at least in the near future, but while startups get a lot of press it will never be the majority of people who will work there. But startups have to pick the best tools for the job to get something going, fast. For some (myself included) this meant Scala/Lift. But the choice of implementation platform/language is seldom the cause of startup failure.but I guess that's for another forum :-) /Jeppe -- You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to lift...@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.
