On Fri, Jan 1, 2010 at 5:21 AM, daiwhea <[email protected]> wrote:
> Start to play with lift now. My first issue is a simple guest book.
>
> There are several guest notes in the guest book list page. I want to
> display a reply form under each guest note. But I don't know how to
> bind the reply form to its note record. How can I do with this? I'm
> using Mapper now.
>
> Below is the snippet and list page.
>
> Thanks for your reply and time.
>
> PS. As I was blocked from the google groups. I'm sorry to say that
> maybe I cannot reply to your comment in time. Thanks again in advance.
>
>
> gbook.html:
> <lift:surround with="default" at="content">
> <h1>Wellcome to my Guest Book</h1>
> <lift:GuestBook.list >
> <div>
> <p><item:email /></p>
> <p><item:title /></p>
> <p><item:content /></p>
> <item:reply />
> </div>
> </lift:GuestBook.list>
> <lift:embed what="/templates-hidden/gbook/addForm" />
> </lift:surround>
>
> GuestBook.scala:
> class GuestBook {
>
> // Set up a requestVar to track the GuestNote object for edits and
> adds
> object noteVar extends RequestVar(new GuestNote())
> def note = noteVar.is
>
> def addNote(html: NodeSeq): NodeSeq = {
> def doAdd() = {
> if (isValideNote(note)) {
> note.createdTime(new Date())
> note.repliedByAdmin(0)
> note.save
> S.redirectTo("/gbook")
> }
> }
> def isValideNote(toCheck : GuestNote) : Boolean =
> List((if (toCheck.title.length == 0) { S.error("You must provide
> a title"); false } else true),
> (if (toCheck.email.length == 0) { S.error("You must provide a
> email address"); false } else true),
> (if (toCheck.content.length == 0) { S.error("You must provide
> some note content"); false } else true)
> ).forall(_ == true)
>
> bind("note", html,
> "title" -> SHtml.text(note.title, note.title(_)),
> "email" -> SHtml.text(note.email, note.email(_)),
> "content" -> SHtml.textarea(note.content, note.content(_)),
> "submit" -> SHtml.submit("Add my Note", doAdd))
> }
>
> def list(html: NodeSeq): NodeSeq = {
> toShow.flatMap(item => {
> curListNote = item
> bind("item", html,
> "title" -> item.title,
> "email" -> item.email,
> "content" -> item.content,
> "reply" -> getReplyContent(item)
> )
> }
> )
> }
>
> def replyNote(html: NodeSeq): NodeSeq = {
>
val localNote = curListNote // capture the instance for the closures
def doReply() {
localNote.save()
}
bind("note", html, "replyContent" -> SHtml.textarea(localNote.replyContent,
localNote.replyContent(_)),
"submit" -> SHtml.submit("Reply", doReply))
}
> def doReply() = {
> println((S.param("id") openOr "")+(S.param("replyContent")
> openOr ""))
> }
>
> bind("note", html,
> "replyContent" -> SHtml.textarea(curListNote.replyContent,
> curListNote.replyContent(_)),
> "submit" -> SHtml.submit("Reply", doReply)
> )
> }
>
> private def toShow = GuestNote.findAll()
>
> var curListNote: GuestNote = _
>
> private def getReplyContent(item: GuestNote) = {
> if (item.repliedByAdmin == 0) {
> <div><p>Not replied by admin</p><lift:embed what="/templates-
> hidden/gbook/replyForm" /></div>
> }
> else
> <p>{"Replied by admin at: "+item.replyTime}</p>
> }
>
> }
>
>
> /templates-hidden/gbook/addForm.html
> <div>
> <lift:GuestBook.addNote form="post">
> <div>
> <label>Title:</label><note:title />
> </div>
> <div>
> <label>Email:</label><note:email />
> </div>
> <div>
> <label>Your Note:</label><note:content />
> </div>
> <div><note:submit /></div>
> </lift:GuestBook.addNote>
> </div>
>
>
>
>
> /templates-hidden/gbook/replyForm.html
> <div>
> <lift:GuestBook.replyNote form="post">
> <div>
> <label>Your Reply:</label><note:replyContent />
> </div>
> <div><note:submit /></div>
> </lift:GuestBook.replyNote>
> </div>
>
> --
>
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>
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