David, The statement that all functions are bound to the current state in the scope that the function was created may be true for functions submitted via SHtml, but doesn't seem to hold true for those from LiftResponse, otherwise, the edit function in my example would work for editing, just as it does for creating.
In any case, I'm still at a loss on how to fix this. Glenn On Nov 20, 5:40 pm, glenn <gl...@exmbly.com> wrote: > David, > > I was able to put together a simplified application to demo the > problem. > It's just a basic lift archetype with a Role.scala added to the mapper > package that > contains all the relevant code. > > Here is the link to the application: > > http://github.com/glennSilverman/treeview > > If you run it as-is, you can add new roles to the db but you can't > edit them. > > Glenn > > On Nov 20, 10:28 am, David Pollak <feeder.of.the.be...@gmail.com> > wrote: > > > On Fri, Nov 20, 2009 at 10:14 AM, glenn <gl...@exmbly.com> wrote: > > > David, > > > > That's what I thought. All I needed to do was create the Mapper.toForm > > > like so: > > > > item.toForm(Full("Save"), { _.save }) > > > > and the item would be saved on submit. But it doesn't work in my case. > > > Please put together a complete runnable example of it not working for you > > and we'll debug it. > > > > Glenn > > > > On Nov 20, 10:05 am, David Pollak <feeder.of.the.be...@gmail.com> > > > wrote: > > > > Glenn, > > > > > All functions are bound to the current state in the scope that the > > > function > > > > was created. There's no need to do weird RequestVar things with Hidden > > > > fields or anything else. If you've got a function passed to SHtml.text, > > > > submit, etc. that function closes over its local scope: it captures all > > > the > > > > variables it refers to. > > > > > So: > > > > > def mySnippet = { > > > > val myInstance = MyTable.find(whatever) > > > > > SHtml.ajaxCheckbox(..., bool => {myInstance.boolField(bool).save; > > > Noop}) > > > > > } > > > > > In the above code, you've captured the instance in the val myInstance... > > > > that's kept around for the lifespan of the function that you passed to > > > > ajaxCheckbox. > > > > > Thanks, > > > > > David > > > > > On Fri, Nov 20, 2009 at 9:45 AM, glenn <gl...@exmbly.com> wrote: > > > > > I've been following this thread as lately I'm having difficulty with > > > > > an ajax-submitted > > > > > request in my app. Here's the scenario (There's no simple way to > > > > > describe this, so bear with me): > > > > > > I create a JQuery tree of my data (Mapper object with just an item > > > > > name and a parent Mapper object as it's fields) as follows: > > > > > > def buildTree(in:NodeSeq):NodeSeq = { > > > > > > object MyJqLoad { > > > > > def apply(content: JsExp) = new JsExp with JQueryRight with > > > > > JQueryLeft { > > > > > def toJsCmd = JqId("json_result").toJsCmd + ".load(" + > > > > > content.toJsCmd + JsRaw("""+this.id""") + ")" > > > > > } > > > > > } > > > > > > val host = "http://"; + S.hostName > > > > > val link = host + ":8080" + S.contextPath + "/api/json/" + > > > > > dbTableName.toLowerCase + "/" > > > > > > val func = AnonFunc( MyJqLoad(link)) > > > > > > TreeView("tree", JsObj(("persist", "location"), ("toggle", func)), > > > > > loadTree, loadNode) > > > > > } > > > > > > The functions, loadTree and loadNode, are used to asynchronously > > > > > build the tree of item names from the Mapper instances. > > > > > The link val creates a URL, for example, > > >http://localhost:8080/api/json/ > > > > > <dbTableName>/, > > > > > where dbTableName is just the Mapper object name. > > > > > > On the client, the user clicks on a tree item, which, as you can see > > > > > from the above code, submits the Mapper id selected to the server, > > > > > which then > > > > > pulls the Mapper.toForm html from the Mapper instance and returns it > > > > > to the client at <div id="json_result"/>, which is in my template. > > > > > This all works great. > > > > > > Where this all breaks down, is in submitting the returned > > > > > Mapper.toForm back to the server when I click on the "Save" button, > > > > > because no Mapper instance > > > > > exists at that point in the request or session for the save button to > > > > > act on. > > > > > > Somewhere, I'm thinking I have to modify the Mapper.toForm html so the > > > > > submit button runs another JavaScript function on the client to return > > > > > the Mapper id > > > > > to the server for processing. But I haven't yet been able to do this. > > > > > One of the problems is that I don't even have an id on the client > > > > > (none is returned with Mapper.toForm > > > > > html) to work with. And, it seems to me that to make this scenario > > > > > work, I'm forced to become a JavaScript guru and work outside of Lift. > > > > > In other words, if there isn't > > > > > a mechanism in Lift to handle this situation directly, there should > > > > > be. > > > > > > One of the things I've tried is to add a hidden form field to the > > > > > Mapper.toForm html, > > > > > > SHtml.hidden(() => itemIdVar(id.toString)), > > > > > > where itemIdVar extends RequestVar[String]. > > > > > > But I couldn't make that work either. The hidden form field is suppose > > > > > to run the ()=Any function, and it may do that, but not in the correct > > > > > sequence to do any good > > > > > when the form is submitted. > > > > > > Glenn > > > > > > On Nov 19, 11:35 pm, Jeppe Nejsum Madsen <je...@ingolfs.dk> wrote: > > > > > > Chris Lewis <burningodzi...@gmail.com> writes: > > > > > > > Thanks for the feedback Jeppe. I can't completely infer the > > > > > > > context > > > of > > > > > > > your example, > > > > > > > Seems to happen a lot to me lately. :-) This was just a quick paste > > > from > > > > > > our codebase.... > > > > > > > > but I get the idea (and I hadn't known about TemplateFinder). > > > Here's > > > > > > > what I've hacked together so far. > > > > > > > /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<liftweb%2bunsubscr...@googlegroups.com> > > > <liftweb%2bunsubscr...@googlegroups.com<liftweb%252bunsubscr...@googlegroups.com> > > > > > > . > > > > > For more options, visit this group at > > > > >http://groups.google.com/group/liftweb?hl=. > > > > > -- > > > > 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<liftweb%2bunsubscr...@googlegroups.com> > > > . > > > For more options, visit this group at > > >http://groups.google.com/group/liftweb?hl=. > > > -- > > 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. 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