>
>
> Message: 8
> Date: Wed, 16 Apr 2008 23:27:57 +0200
> From: "Guillaume Lerouge" <[EMAIL PROTECTED]>
> Subject: Re: [xwiki-devs] What is $msg ?
> To: "XWiki Developers" <[email protected]>
> Message-ID:
> <[EMAIL PROTECTED]>
> Content-Type: text/plain; charset=ISO-8859-1
>
> Hi Kamna,
>
> In the past few days, I have been looking a lot at the Velocity templates
> > and the Xwiki core code.
> > There are a few things I am not able to understand.
> >
> > 1) Where is $msg variable defined in the core code? I see it a lot in
> the
> > scripts. Is it a hashtable for messages. Where is it defined?
>
>
> $msg is the code used to get translation messages. Basically when you
> write
> $msg.translation or $msg.get("translation"), upon parsing of the page by
> the
> Velovity parser the engine looks into the translations file. if it finds
> something such as translation=NiceTranslation, it turns $msg.translation
> into NiceTranslation when rendering the page.
>
> 2) what is referred to by "xpage","xredirect"
> >
> > For eg. in the following mehtod from Utils.java
> >
> > public static String getPage(XWikiRequest request, String defaultpage)
> > {
> > String page;
> > page = request.getParameter("xpage");
> > if ((page == null) || (page.equals(""))) {
> > page = defaultpage;
> > }
> > return page;
> > }
> >
> > does this mean, that if a page with that name exists in the template
> > directory(xpage), it will be returned. But, what is defaultpage?
> >
>
> They are used to return specific actions when ?xpage= is appended to a
> page
> URL . For instance, /xwiki/bin/view/Main/WebHome?xpage=plain will render
> the
> content witout any style, /xwiki/bin/view/Main/WebHome?xpage=print will
> render the page in print mode...
>
> Similarly, ?xredirect takes another url as a parameter and sends the
> viewer
> to the given page. When you try to access a page you cannot see, it's the
> action used to send you back to the page from the login page.
>
if xpage = "mypage" then it would pass the control (request) to a vm
template file mypage.vm and the rendering or response of the request would
be as defined in mypage.vm
>
> > Currently the login page does not show any error if the provided
> > credentials
> > are wrong. (authentication with LDAP)
> > A look at the LoginErrorAction.java in the Web package revealed that it
> > returns the same string as the LoginAction - "login"
> > so, if I created anither loginerror.vm in teh templates folder and
> > returned
> > "loginerror" in the render function of this LoginErrorAction.java class,
> > it
> > would run the new script.
> >
> > But, at this stage I do not know what would be the content of the
> > loginerror.vm....
> > #xwikimessageboxstart($msg.get("error") $msg.get("notallowed")) - would
> > this work?
>
>
> Not quite sure... Though trial & error sounds like a nice tactic ;-)
>
> Guillaume
>
>
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