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Regards Taha Sent from my iPhone On Jun 15, 2011, at 5:24 PM, "Thiago H. de Paula Figueiredo" <thiag...@gmail.com> wrote: > On Wed, 15 Jun 2011 07:35:14 -0300, PXZ <pragprog...@gmail.com> wrote: > >> hi, I'm new to Tapestry. > > Welcome! > >> I was trying out the Vote Youtube tutorial/video, >> and looks like that ActionLink doesn't seem to be safe for search engines? > >> The problem with this code is that the link changes server sided database >> state via a simple link click (so it's a non-idempotent request). This means >> that search engines and bots will change the database when they crawl/index >> the website. The positive side of this code is that it is a safety fallback >> for non-javascript clients. > > Your concern is correct, but IMHO this is something that should be handled by > the developer, not by the framework itself. You are responsible for checking > if the action requested can be done or not. You can check some logic in your > page or component class before doing the action itself. > >> Is there a way to override the href attribute to "#" so that it is safe for >> search engines? > > You can write a mixin or a MarkupRendererFilter for that. > >> Or is their another Tapestry component that is better suited for this >> problem? > > No. But I think EventLink should be used instead of ActionLink anyway. An > ActionLink is basically an EventLink which always trigger the 'action' event. > > -- > Thiago H. de Paula Figueiredo > Independent Java, Apache Tapestry 5 and Hibernate consultant, developer, and > instructor > Owner, Ars Machina Tecnologia da Informação Ltda. > http://www.arsmachina.com.br > > --------------------------------------------------------------------- > 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
