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Re: [Webware-discuss] not sure i understand this... action prepends header?
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From: John D. <jdi...@te...> - 2005-02-02 15:01:13
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ok, so you also have to pass the action name to preAction() and
postAction().
def preAction(self,actionName):
pass
def postAction(self,actionName):
self.writeHTML()
--John
John Dickinson wrote:
> I assume you are inheriting from WebKit.Page. Look at the preAction()
> and postAction() functions there. As those functions are implemented,
> when you call an action, the doctype and header ar printed, then your
> action is called, then any closing tages (body,html) are printed (this
> is from memory, check the code to be sure). So when you call
> writeHTML() from an action, some of what is going to be written has
> already been written. On this list I read someone say that the default
> implememtation of the actions is an anemic version of writeHTML().
>
> My suggestion would be to do the following:
>
> ..in your servlet
> def preAction(self):
> pass
> def postAction(self):
> self.writeHTML()
>
> and don't write anything out to the screen in your action.
>
> --John
>
> lloyd wrote:
>
>>
>> if i call self.writeHTML() from an action, it prepends a redundant
>> header to the output :
>>
>> <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
>> "http://www.w3.org/TR/html4/loose.dtd">
>> <html>
>> <head>
>> <title>ServletNameInsteadOfCheetahTemplateTitle</title>
>> </head>
>>
>> <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
>> <html>
>> <head>
>> <meta content="text/html; charset=ISO-8859-1"
>> http-equiv="content-type">
>> <title>Title set in cheetah template</title>
>> <link rel="stylesheet" href="/common/style.css" type="text/css">
>>
>> <script language="javascript" type="text/javascript"
>> src="/common/lib.js"></script>
>>
>> </head>
>>
>>
>> however, just accessing the servlet directly without an action does
>> not prepend the redundant header.
>>
>> i don't use any methods in the servlet except writeHTML() because i
>> use cheetah templates to generate the output, which i render with
>> self.writeln(templateOutput)
>>
>> i have a feeling i may be using the class incorrectly; nor have i
>> scoured my code yet - just wondering if anyone sees something
>> glaringly obvious, or has come across this before.
>>
>>
>> thanks
>>
>>
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