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Help with Swazoo - D6

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Michael Atkisson

Help with Swazoo - D6

I'm having problems understanding Swazoo. I saw a post earlier that
showed
how to display 'Hello World' in the browser and I got that to work, but
need something
beyond that. I would like to display a page with a couple of input
boxes and a submit
button. I want to know how to receive the user input and be able to
process it in
Dolphin. Part of this is, I also need to know what special commands
need to be added to
the html page as well.

Thanks!

Tim M

Re: Help with Swazoo - D6

I think what you are looking for is to use a SwazooActivePageResource
and specify #uriPattern:filePath:

(e.g. uriPattern: '/myapp' filePatch: 'c:\web\report.sap'.

report.sap can look something like this:

<html>
<body>
Hello Tim
<ul>
<? (1 to: 12) do: [:i | ?><li>Report <? ws nextPutAll: ('<P><P>'
expandMacrosWith: i with: i). ?></li><? ]. ?>
</ul>
</body
</html>

So you can put normal html stuff in there (and code if you use the <?
convention) - you can even use something like NVU to edit the file and
design it wysiwyg.

Having said all of this - I find that resource rather annoying and
awkward to use. I have almost completed STemplate - which is a light
wieght clone of the java Velocity or FreeMarker templating engines - I
have a proper parser that fails fast and indicates where errors are. My
templates look as follows:

<html>
<body>
Hello Tim
<ul>
<#set x = 1 to: 12/>
<#foreach y in x>
<li>
Report <a href='http://xxmagazine/${y!02u!}.htm'>Magazine
${y!02u!}</a></li>
</#foreach>
</ul>
</body
</html>

If you want to "beta test" my work so far, I can send that on. My
intention is that it will be an open source project. However the stuff
already built into swazoo will certainly get you going.

Tim

Tim M

Re: Help with Swazoo - D6

In reply to this post by Michael Atkisson

Forgot to also mention - you can of course subclass Swazoo resource and
write to the response directly (see: GoodbyeCruelWorld - but use
HttpResponse ok).

I just find it gets a bit nasty doing this, and so you need to get an
HtmlWriter goodie from someone or use file resources.

Tim

Michael Atkisson

Re: Help with Swazoo - D6

Thanks for your response. However I don't understand it.

Tim M

Re: Help with Swazoo - D6

Look at the class GoodByeCruelWorld - it has everything you need.
Specifically the method

answerTo: aRequest
| response |
response := HTTPResponse notFound.
response
entity: '<html><head><title>Goodbye</title></head><body>I am not
really here.</body></html>'.
^response

In the above change the line HTTPResponse notFound. to HTTPResponse ok.

In the entity String - put in any Html you need to build a form, if you
don't know how to build forms, use a tool like NVU (or Dreamweaver or
whatever) to build one, and then paste what it creates into that
String. When you get that working, you can simplify it by having an
object build that String (someone probably has a goody for you).

If you are still stuck - I would suggest you read about Java Servlets
(there's lots of good tutorials on those) - the same concepts apply and
you can then use that to play with the code above.

Tim

Michael Atkisson

Re: Help with Swazoo - D6

I have created a web page

<html>
<head>
<title>Untitled Document</title>
<meta http-equiv="Content-Type" content="text/html;
charset=iso-8859-1">
</head>

<body bgcolor="#FFFFFF">
<form method="post" action="">
<p>
<input type="text" name="Name">
</p>
<p>
<input type="text" name="Address">
</p>
<p> </p>
<p>
<input type="submit" name="Submit" value="Submit">
</p>
</form>
</body>
</html>

I put it in a method named answerTo:

When I call the the web page it works fine and displays what I
expect. However I don't know how to access the values the users
enters of the two input fields values in Dolphin, once I press the
submit button.

Thanks for your Help!

Steve Alan Waring

Re: Help with Swazoo - D6

Hi Michael,

Have a look at http://www.w3.org/TR/html401/interact/forms.html#h-17.13
for info on how the form data is submitted. If your form uses
method="post", most of the server side of this is handled in HTTPPost.
If you use method="get", it can be accessed via HTTPGet>>queryAt:

Assuming you are using method="post" in your form, to access the data
in your resource's #answerTo: method, you first need to check whether
the request #isPost, and if so use HTTPPost>>postData* methods to
access it.

Do you have the "SZ Swazoo Authorization.pac" package? If so there is
an example resource, AuthorizationResource, that checks whether a
request is a GET or a POST and behaves differently for each.

Hope this helps,
Steve
--
Steve Waring

Michael Atkisson

Re: Help with Swazoo - D6

Thanks! I think I have a better idea of what to do.