For those that are using s3, I created a MappedS3Image MappedField for automating the storage of image uploads to s3 with a unique identifier stored in the RDBMS. If anyone's interested I could clean and share the code.
usage like this: user.avatar.setFromUpload(fileParamHolderBox) or user.avatar.setFromUrl(urlString) - Jon On Dec 2, 12:15 am, DMB <[email protected]> wrote: > You don't even need f.get in there as it turns out. "f.get" should > just be "file". Beautiful. Thanks for the tip. > > On Dec 1, 8:07 pm, David Pollak <[email protected]> wrote: > > > > > On Tue, Dec 1, 2009 at 8:03 PM, DMB <[email protected]> wrote: > > > Ended up doing this: > > > > def show(xhtml: NodeSeq) : NodeSeq = { > > > if(S.post_?) { > > > val f : Option[FileParamHolder] = S.request match { > > > case Empty => Empty > > > case Full(req) => > > > req.uploadedFiles.find(_.name == "file_upload") > > > } > > > > if(f.isDefined) { > > > acceptFile(f.get) > > > } > > > } > > > return xhtml > > > } > > > This is a place for a for comprehension: > > > def show(xhtml: NodeSeq): NodeSeq = { > > for { > > request <- S.request if S.post_? > > file <- request.uploadedFiles.find(_.name == "file_upload") > > } acceptFile(f.get) > > > xhtml > > > } > > > Note that the code is shorter, reads better and has no branches in it. > > > > And putting a bare upload field in the snippet, like you sugested. I > > > still wonder if the binding method is the best place for this, though. > > > > On Dec 1, 10:14 am, David Pollak <[email protected]> > > > wrote: > > > > If you have the Req (request), you can do: > > > > > val req: Req = ... > > > > val theFile: Option[FileParamHolder] = req.uploadedFiles.find(_.name == > > > > "my_param_name") > > > > > On Tue, Dec 1, 2009 at 2:49 AM, DMB <[email protected]> wrote: > > > > > Just what I was looking for, thanks! > > > > > > By the way, is there a way to assign a "name" attribute to a file > > > > > upload input field? The reason is I have a legacy piece of code that > > > > > does HTTP uploads by simulating a form submit. This code requires that > > > > > the form field name be known in advance, for obvious reasons. > > > > > > On Nov 30, 9:26 pm, David Pollak <[email protected]> > > > > > wrote: > > > > > > Folks, > > > > > > > Lately there's been a bunch of chatter on the list about image > > > > > > upload > > > and > > > > > > figuring out how to put the image files in the right place to serve > > > them > > > > > > again. > > > > > > > I've written a simple example of image uploading, storing the image > > > in > > > > > the > > > > > > RDBMS and then serving the image. You can find the code at: > > > > >http://github.com/dpp/imagine/ > > > > > > > The file upload snippet is very simple: > > > > > > > class DoUpload { > > > > > > private def saveFile(fp: FileParamHolder): Unit = { > > > > > > fp.file match { > > > > > > case null => > > > > > > case x if x.length == 0 => > > > > > > case x => > > > > > > val blob = ImageBlob.create.image(x).saveMe > > > > > > ImageInfo.create.name > > > > > > (fp.fileName).mimeType(fp.mimeType).blob(blob).saveMe > > > > > > S.notice("Thanks for the upload") > > > > > > S.redirectTo("/") > > > > > > } > > > > > > } > > > > > > > def render(in: NodeSeq): NodeSeq = > > > > > > bind("upload", in, "file" -> SHtml.fileUpload(saveFile _)) > > > > > > > } > > > > > > > If the blob is uploaded, it's put in a row in ImageBlob and an > > > ImageInfo > > > > > row > > > > > > is created to store the name and mime type. There are two different > > > rows > > > > > so > > > > > > that one doesn't have to pull the whole blob back when you're > > > checking > > > > > for > > > > > > the upload date. > > > > > > > Serving the image is similarly concise: > > > > > > > def serveImage: LiftRules.DispatchPF = { > > > > > > case req @ Req("images" :: _ :: Nil, _, GetRequest) if > > > > > > findFromRequest(req).isDefined => > > > > > > () => { > > > > > > val info = findFromRequest(req).open_! // open is valid here > > > > > because > > > > > > we just tested in the guard > > > > > > > // Test for expiration > > > > > > req.testFor304(info.date, "Expires" -> toInternetDate(millis > > > + > > > > > > 30.days)) or > > > > > > // load the blob and return it > > > > > > info.blob.obj.map(blob => InMemoryResponse(blob.image, > > > > > > List(("Last-Modified", toInternetDate(info.date.is)), > > > > > > > ("Expires", toInternetDate(millis + 30.days)), > > > > > > > ("Content-Type", info.mimeType.is)), Nil, 200)) > > > > > > } > > > > > > } > > > > > > > If the request matches /images/xxx where xxx is a name in the > > > ImageInfo > > > > > > table, check to see if we can return a 304 (not modified). If not, > > > we > > > > > pull > > > > > > the blob from the database and return it. > > > > > > > I hope this helps folks who are looking to manage and serve images. > > > > > > > Thanks, > > > > > > > David > > > > > > > -- > > > > > > 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 [email protected]. > > > > > To unsubscribe from this group, send email to > > > > > [email protected]<liftweb%[email protected] > > > > > > > > > <liftweb%[email protected]<liftweb%252bunsubscr...@googlegroup > > > s.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 [email protected]. > > > To unsubscribe from this group, send email to > > > [email protected]<liftweb%[email protected] > > > > > > > . > > > 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. 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