seaside June 2018

seaside@lists.squeakfoundation.org

14 participants
16 discussions

isolate
by recursive68＠gmail.com 26 Nov '19

26 Nov '19

Hi, Given it looks like the isolate method is never going to added back to the current or future versions of Seaside as it's been an open bug issue for the last 5 years, how in general would go about replicating it's behaviour ? I think it's a shame as I think this sort of functionality made Seaside standout from the crowd as a web framework. Thanks

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Hosting Options these days?
by Tim Mackinnon 29 Mar '19

29 Mar '19

Hi everyone - are there any easy hobbyist hosting options for seaside these days? Or do you have to setup an Ec2 instance yourself? Tim

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default exception handler WAWalkbackErrorHandler only present in development, not runtime
by Thomas Brodt 11 Sep '18

11 Sep '18

Hi in Seaside (3.2.0 - JohanBrichau.85 1 in the Visualworks 8.3 port) class WAEnvironment installs WAWalkbackErrorHandler as default exceptionHandler in method #configureApplicationExceptionHandlingDefaults called from initialize. But WAWalkbackErrorHandler is included in package Seaside-Development, so if you build runtimes without Seaside development packages, this fails because WAWalkbackErrorHandler is not present in such runtime images. Shouldn't rather WAHtmlErrorHandler be used as default exception handler which is in the same package as WAEnvironment? And then maybe replaced by WAWalkbackErrorHandler if you additionally load development? Any thoughts? Thomas

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Answer Handlers - Multiple?
by Sean P. DeNigris 30 Jun '18

30 Jun '18

IIUC there can only be one answer handler for a component because WAAnswerHandler>>#handleAnswer:continueWith: doesn't touch the second argument, causing #handleAnswer: to skip the rest of the decorator chain by returning true. Is that a design decision? It seems like it could be useful to have multiple answer handlers… ----- Cheers, Sean -- Sent from: http://forum.world.st/Seaside-General-f86180.html

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Alternatives to DataTables
by Esteban A. Maringolo 25 Jun '18

25 Jun '18

Hi, Please allow me a slight off topic, but I'm in the need of some features that DataTables [1] with all its capabilities can't provide. ¿Is there any existing alternative to it? Regards! [1] https://datatables.net -- Esteban A. Maringolo

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Combine several FileLibraries into a single one
by Esteban A. Maringolo 23 Jun '18

23 Jun '18

Did anybody create an utility that enables the merge the contents of several files in FileLibraries into a few methods into another library? I mean, for deployment in production I don't want to deploy to disk the contents of the files to be served statically, but I want to keep them within the image, but combining them into a single file (or a few) to avoid having multiple network requests, and cache the contents only once. So if I have FileLibraryA>>mylibraryaJs FileLibraryB>>mylibrarybJs FileLibraryC>>mylibrarydJs etc... And I'd like to have: CombinedFileLibrary>>librariesJs CombinedFileLibrary could be a meta-meta library, where #librariesJs has the file description, but the contents is built dinamically somehow. Does it exist, or should I build it? :) -- Esteban A. Maringolo

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Lock and Unlock http verbs
by BrunoBB 21 Jun '18

21 Jun '18

Hi, Implementing a service layer for Orbeon Forms needs lock and unlock verbs for some persistence services. These two verbs are ignored by Seaside Rest (using Seside GemStone version). Following routes implementation i reached WARouteBuilder and methods on category "configuration methods". After implementing in WARouteBuilder: lock <configuration> self method: 'LOCK' The service (with lock verb) started to work. Why these methods are not implemented by default ? Is this implementation correct ? regards, bruno -- Sent from: http://forum.world.st/Seaside-General-f86180.html

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AJAX callback:value: via POST message
by Esteban A. Maringolo 21 Jun '18

21 Jun '18

Hi, I'm currently doing a an AJAX call with #callback:value: where the value is a stringified JSON I built at client side and which on completion returns a script file. But the value payload is passed encoded in the URI, and this has a size limit. Is there a way to do a callback:value: using POST instead of GET? The call is something like this: ( html jQuery id: self tableId ) on: 'paste' selector: nil data: ( ( html jQuery ajax ) callback: [ :json | self pasteMatrix: ( WAJsonParser parse: json ) ] value: ( JSStream on: 'JSON.stringify(arguments[0])' ); onComplete: ( html jQuery ajax script: [ :s | self scriptValidatedReloadOn: s ] ) ) asFunction. call: (JSStream on: 'pasteHandler' ) And I'd like to have a POST based function that sends the JSON string in it's `data` payload instead. Regards, Appendix A: `pasteHandler` is a custom function that detects if the contents being pasted into a text input are not a single value but instead are values copied from an Excel file, in tab separated format, and if so overrides the event propagation, creates a matrix (array of arrays), and calls the function passed to the `data:` parameter in the event handler. Because the inputs are presented as separate <input> tags within a table, that's the only way I found to preserve the convenience of having separate inputs, but with the behavior of a single "grid" for pasting (and copying) data. function pasteHandler(event){ var clipboardData, pastedData; var e = event.originalEvent; var matrix; clipboardData = e.clipboardData || window.clipboardData; if (!clipboardData) return false; pastedData = clipboardData.getData("Text"); matrix = tabMatrix(pastedData); if (isMatrix(matrix)) { // Stop data actually being pasted var point = pastePoint(e.target); var matrixHandler = event.data; if (matrixHandler) { e.stopPropagation(); e.preventDefault(); matrixHandler({"matrix": matrix, "point": point}); } } } -- Esteban A. Maringolo

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Web Projects Ported to GitHub
by Sean P. DeNigris 19 Jun '18

19 Jun '18

In the course of working on a new Seaside app, I ported a few projects to GH. I'm listing them here in case anyone finds that useful: - https://github.com/seandenigris/TF-Login - https://github.com/seandenigris/SmallReddit I'm sure there will be more and if so I'll update this thread. ----- Cheers, Sean -- Sent from: http://forum.world.st/Seaside-General-f86180.html

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Questions about seaside and pharo
by Blake McBride 15 Jun '18

15 Jun '18

Greetings, In my arena, I have found that there is only interest in web applications these days, so my focus is there. I have been highly attracted to Smalltalk since Smalltalk-80 came out. Unfortunately, I couldn't afford the system in the early days and I was caught up in other technology in later days. I've kept an eye on Smalltalk over the years. The number one thing that's kept me from Smalltalk was portable widgets such as textbox, radio buttons, checkboxes, dropdowns, etc. But noseaside(a)lists.squeakfoundation.orgw, as I said, the world has moved on to web-apps so all those widgets aren't important anymore. Java was designed as a front-end solution but found success on the back-end. Perhaps the same will be true of Smalltalk... The browser world has evolved very significantly these last several years. Old web architectures that made a lot of sense then aren't really applicable anymore. For example, early on browsers were slow and had a lot of differences. It made sense to generate the HTML on the back-end and send it to the browser. This is no longer the case! Javascript is very fast now, and HTML has become substantially powerful and standardized. Granted that there is a lot more work to be done, but it has reached a practical level. Today's model is different. Push all the display logic to the browser via tools like React, Angular, etc. This means less load on the back-end and a clean separation between the logic and the display. So, today's model looks like this: 1. All graphical rendering and processing are done at the front-end (the browser). 2. The back-end serves up only two things: a. Static HTML, JavaScrip, and CSS (images, PDF, etc.) files. b. The front-end and back-end communicate with *stateless* REST services. This minimizes the back-end load and allows companies to anticipate industry changes since the front-end can be changed independently of the back-end, i.e. their investment in the back-end is saved. My impression is that Seaside was designed for the era when the back-end produced the front-end HTML. Although, I am also under the impression that this aspect of Seaside need not be utilized, and that Seaside can serve static files and provide REST services. So, perhaps Seaside is a potentially useful solution for today's needs. I have the following question (which I understand are really more Squeak/Pharo questions but I think this community would know the answers): 1. Does Pharo support multiple OS/native threads? (I know the difference between native threads, cooperative threads, and single threading.) I believe Pharo is of the cooperative thread sort. Node has a lot of design features that make it run in a single thread very efficiently. If Pharo doesn't have native threads, does it have design features that make it especially efficient with a single OS thread (like node)? 2. Can I run Seaside headless? 3. The Seaside book at http://book.seaside.st/book/advanced/restful/nutshell talks about REST services in two models but seems to only give an example for the case I am not interested in. Is there a tutorial for the REST centric core model? I've wanted to use Smalltalk for over 30 years to do real work that I need. Perhaps I can. Thanks! Blake McBride

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seaside June 2018