[Seaside] Problem smalltalk code

Robert Sirois watchlala at hotmail.com
Wed Oct 27 14:20:40 UTC 2010

Ah, yea, my bad. I just threw that in there from memory. The callbacks can be triggered with a submitButton or an ajax serialization. Here's a couple snippets from code I've written just as examples:
This one's pretty basic:
renderContentOn: html				html form: [					html text: 'Game name: '.			html textInput				callback: [:v | gameName := v ].						html break.					html text: 'World: '.			html select				callback: [:v | worldName := v ];"The callback will get evaluated when the client hits the submitButton within the form tags"				list: (GTLWorld worlds collect: [:w | w n ]).					html break.					html select				callback: [:v | desiredPlayers := v ];"oh... just on another note (to whoever posted that thing about restricting input values to integers), this will accomplish that)				list: #(2 3 4 5 6)."I could have also done: #list: (2 to: 6)."						html break.					html submitButton"regardless of what the submitButton's callback does, the callbacks on all the form elements will be evaluated"				callback: [ self createNewGame ];				value: 'Add game to queue'.				].
This select will automatically go to another page when the client selects something (#goToPage: renders a new component via jQuery):
	html select		on: #selected of: self;"browse implementors of this method, it's another way of assigning input to instance variables"		list: ((user organizations collect: [:org | org oName ]) addFirst: '-- Select an organization --'; yourself);		onChange: html jQuery ajax serializeThis, (html jQuery ajax script: [:s | s add: (self goToPage: s)] )."concatenation is my lazy way of chaining jQuery/javascript"
This one is a little more complicated: The select will get serialized when the client hits the "Invite" button, and then refreshes the page (displaying in a list all the users the client has invited).
		html select			id: #invitePlayer;			list: (self session gameObject server players collect: [:player | player username ]);			callback: [:v | self invitedPlayers add: v ];			onSubmit: html jQuery ajax serializeThis."the submit event is irrelevant... I just chose it because it wouldn't normally occur"		html button			bePush;			onClick: (html jQuery: #invitePlayer) triggerSubmit, html javascript refresh;			with: 'Invite'.
Anyway... I hope this helps.RS
From: johan at inceptive.be
Subject: Re: [Seaside] Problem smalltalk code
Date: Wed, 27 Oct 2010 09:39:57 +0200
To: seaside at lists.squeakfoundation.org

Changing the selection in the scroll list does not submit the form automatically. You either need to have an explicit submit button, which will trigger the callbacks on the server-side, or you need to make the form submit on the 'change' event of the scroll list.
If you want the form to submit when changing the selection in the scroll list, you can use the jQuery ajax serialize functionality like this:
html select		list: ...		callback: ....		onChange: (html jQuery ajax serializeForm)

On 27 Oct 2010, at 09:05, Alexandre BP wrote:Thank you for you reply Robert,
Unfortunately it doesn't work. The variable selected is not updated directly when I change from 'a' to 'b' in the scroll list.Any idea why it doesn't work? 

From: watchlala at hotmail.com
To: seaside at lists.squeakfoundation.org
Subject: RE: [Seaside] Problem smalltalk code
Date: Tue, 26 Oct 2010 10:38:09 -0600

Browse WAChoiceDialog.
You can make it as simple as:
renderContentOn: html
    html form: [ html select list: (Array with: 'a' with: 'b'); callback: [:v | self selected: v ] ].    html text: self selected.
selected    ^selected ifNil: [ selected := 'Choose a value to print.' ].
selected: aRenderable    selected := aRenderable.
(Doing this from memory)RS

From: abalonpe at ulb.ac.be
To: seaside at lists.squeakfoundation.org
Date: Tue, 26 Oct 2010 16:20:16 +0000
Subject: [Seaside] Problem smalltalk code

I'm stuck on a problem with smalltalk.Here is my code:
	 renderBibTypeOn: canvas 
	| tagID | 	canvas div: [ 		canvas label 			for: (tagID := canvas nextId); 			with: 'BibteX Type:'. 		canvas select 			id: tagID; 			selected: bibEntry bibType ; 			list: bibEntry bibTypeList; 			callback: [:value | bibEntry bibType: value].		 ].
I'd like to change what is displayed on my webpage according to what the user choose from the scroll list.I saw that there was an exemple of this on localhost-->browse-->examples-->examplebrowser but the code of this exemple is not online on the contraty of the other examples.Could you help me with this code or post the code of the examplebrowser?
Thank you very muchalex
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