I'm trying to use a RequestVar to keep the Mapper model that I'm
editing throughout the lifetime of a simple form. Specifically, I'm
adding Users to a Role. The problem is, the RequestVar seems to get
recreated at every step and, I must admit, it's driving me crazy and
I'd appreciate some help.
Here's my snippet code:
object currentRole extends RequestVar[Role](new Role)
def addUsers(xhtml: NodeSeq): NodeSeq = {
val possible = User.findAll().map(user => (user.id.toString,
user.name))
val current = role.users.map(user => user.id.toString)
var updated: List[Long] = Nil
for {
id <- S.param("id")
num <- Full(id.toLong)
e <- Role.find(By(Role.id, num))
} {
println(currentRole)
currentRole(e)
println(currentRole)
}
def loadUsers(ids: List[String]) = {
updated = ids.map(_.toLong)
}
def processUsers() = {
println(updated)
println(currentRole)
}
bind("entry", xhtml,
"users" -> SHtml.multiSelect(possible, current, loadUsers(_)),
"submit" -> SHtml.submit("Update", processUsers)
)
}
And the template:
<lift:surround with="default" at="content">
<lift:ManageRoles.addUsers form="POST">
<entry:users />
<entry:submit />
</lift:ManageRoles.addUsers>
</lift:surround>
And my STDOUT:
com.equalnetworks.model.Role={Parent
Role:=NULL,datacenter=NULL,Name:=,id=-1,Delete:=false,Update:=false,Create:=false,Read:=false}
com.equalnetworks.model.Role={Parent
Role:=NULL,datacenter=NULL,Name:=Customers,id=2,Delete:=false,Update:=false,Create:=false,Read:=false}
INFO - Service request (GET) /roles/memberships/ took 87 Milliseconds
INFO - Service request (GET) /classpath/jquery.js took 7 Milliseconds
INFO - Service request (GET) /images/ajax-loader.gif took 6
Milliseconds
List(1, 2)
com.equalnetworks.model.Role={Parent
Role:=NULL,datacenter=NULL,Name:=,id=-1,Delete:=false,Update:=false,Create:=false,Read:=false}
As you can see, I'm using a for comprehension to take a request
parameter (e.g. /roles/memerships/?id=2) and get a Role, which I then
successfully assign to my currentRole RequestVar (see how id is first
-1 and then 2). Unfortunately once I submit the form processUsers is
called and currentRole again has an id of -1. Why is this?
Thanks in advance,
Peter Robinett
--~--~---------~--~----~------------~-------~--~----~
You received this message because you are subscribed to the Google Groups
"Lift" group.
To post to this group, send email to liftweb@googlegroups.com
To unsubscribe from this group, send email to
liftweb+unsubscr...@googlegroups.com
For more options, visit this group at
http://groups.google.com/group/liftweb?hl=en
-~----------~----~----~----~------~----~------~--~---
