On Sat, Apr 28, 2018 at 7:51 AM, Luca Arzeni <l.arz...@iname.com> wrote:
> Hi, > Hello, Luca! (Ciao? :D ) > this is an idea, but I was hoping to have direct access to the request. > In tapestry3 there was a direct way to access the Visit Object, and the > ognl was well documented, but it seems that there is no more similar in > tapestry5. > There isn't and that's by design. The Tapestry 5 philosophy, at least the internal one, is to have the least code in templates possible, so ressurecting Tapestry 4-'s direct access to the request object wouldn't make sense, IMHO. You can always create your own binding prefixes, though, so you can do basically everything with Tapestry expressions as long as you're willing to implement a binding prefix. > > Thank you, > larzeni > > > > Sent: Saturday, April 28, 2018 at 12:41 AM > > From: "pico.dev" <pico....@gmail.com> > > To: "Tapestry users" <users@tapestry.apache.org> > > Subject: Re: Access request from tml / standard servlet api role support > > > > Hi, > > > > Maybe you can implement a new conditional component that checks the role > > and render or not its body. Something like this: > > > > <t:isUserInRole role="ADMIN"> > > <a t:id="saveButton" type="button" href="#">SAVE DATA</a> > > </t:isuserInRole> > > > > See https://tapestry.apache.org/component-rendering.html > > > > Regards, > > > > El sáb., 28 abr. 2018 a las 0:12, Luca Arzeni (<l.arz...@iname.com>) > > escribió: > > > > > Hi, > > > I'm using tapestry5.4 with java 8. > > > > > > I am using the standard servlet API to check if a user is in role or > not, > > > to hide or show buttons, links, and so on. > > > > > > For example, I need to show a button to the user only if the user has > been > > > granted a role. > > > > > > My usual way to to this is: > > > > > > 1) create a method in the page, for example: > > > > > > @Inject > > > RequestGlobals m_requestGlobals; > > > > > > public boolean isUserAdmin() { > > > if (m_requestGlobals == null) { > > > return false; > > > } > > > return m_requestGlobals.isUserInRole("ADMIN"); > > > } > > > > > > 2) then, in the tml, check the method using a t:if component, for > example: > > > > > > <t:if test="userAdmin"> > > > <a t:id="saveButton" type="button" href="#">SAVE > DATA</a> > > > </t:if> > > > > > > This is not so good, since I must reimplement the same method in many > > > pages. > > > > > > Is there any way could I access the requestGlobals directly from tml? > > > > > > My goql would be to write, directly in the tml, something like: > > > > > > > > > <t:if test="request.isuserInRole('ADMIN')"> > > > <a t:id="saveButton" type="button" href="#">SAVE DATA</a> > > > </t:if> > > > > > > > > > Is it possible to do this with tapestry5? > > > > > > Thanks in advance, > > > larzeni > > > > > > --------------------------------------------------------------------- > > > To unsubscribe, e-mail: users-unsubscr...@tapestry.apache.org > > > For additional commands, e-mail: users-h...@tapestry.apache.org > > > > > > > > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: users-unsubscr...@tapestry.apache.org > For additional commands, e-mail: users-h...@tapestry.apache.org > > -- Thiago
