[erlyweb-list] s and other non-component data</span></a></span> </h1> <p class="darkgray font13"> <span class="sender pipe"><a href="/search?l=erlyweb@googlegroups.com&q=from:%22David+King%22" rel="nofollow"><span itemprop="author" itemscope itemtype="http://schema.org/Person"><span itemprop="name">David King</span></span></a></span> <span class="date"><a href="/search?l=erlyweb@googlegroups.com&q=date:20071116" rel="nofollow">Fri, 16 Nov 2007 11:51:13 -0800</a></span> </p> </div> <div itemprop="articleBody" class="msgBody"> <!--X-Body-of-Message--> <pre> erlyweb uses a component system for rendering pages. It makes most of my controller functions return lists like this:</pre><pre> [{data,post:title(Post)}, {ewc,post,contents,[A,Post]}, {ewc,comment,comments,[A,post:comments(Post)]}] The view function then looks like: <%@ show([Title,Contents,Comments]) %> <h1><% Title %></h1> <div class="post_contents"><% Contents %></div> <ul class="comments><% Comments %></ul> I really like this, because it allows me to separate the view-logic for things like contents and comments out from each other, which makes changing the behaviour of these quite simple, localised, and re- useable. (In fact, as I re-write portions of erlyweb for my purposes, the component system is something that I haven't touched at all because it works quite well.) However, it has an inherent limitation: none of those functions can return data to be rendered outside of their components. In my case, I'd like to be able to set <title> tags, which means that the top-level controller function (by top- level, I mean the one referenced in the URL; like in /post/show/12, the top-level controller function would be show/2) needs to somehow return information to be rendered outside its little sandbox. I see that Vimagi doesn't set <title> tags (neither <http:// vimagi.com/p/0PXmMRe6hGV> nor <<a rel="nofollow" href="http://vimagi.com/users/feeling3_4">http://vimagi.com/users/feeling3_4</a>> set one, at least, and those are where I'd expect to see them), but BeerRiot does (<<a rel="nofollow" href="http://beerriot.com/beer/view/1751">http://beerriot.com/beer/view/1751</a>>; BTW I do love the idea of having a controller called "beer_controller"). It isn't limited to <title>s (for instance, I may want to alert the browser that an RSS equivalent of this page exists, or what the caching TTL is for this page in the HTTP headers). Conceptually, how would one go about returning this extra information, while still using the component system (I now have a lot of code that uses it that I'd like to not re-write :) )? --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "erlyweb" group. To post to this group, send email to erlyweb@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at <a rel="nofollow" href="http://groups.google.com/group/erlyweb?hl=en">http://groups.google.com/group/erlyweb?hl=en</a> -~----------~----~----~----~------~----~------~--~--- </pre> </div> <div class="msgButtons margintopdouble"> <ul class="overflow"> <li class="msgButtonItems"><a class="button buttonleft " accesskey="p" href="msg00099.html">Previous message</a></li> <li class="msgButtonItems textaligncenter"><a class="button" accesskey="c" href="index.html#00102">View by thread</a></li> <li class="msgButtonItems textaligncenter"><a class="button" accesskey="i" href="maillist.html#00102">View by date</a></li> <li class="msgButtonItems textalignright"><a class="button buttonright " accesskey="n" href="msg00104.html">Next message</a></li> </ul> </div> <a name="tslice"></a> <div class="tSliceList margintopdouble"> <ul class="icons monospace"> <li class="icons-email tSliceCur"><span class="subject">[erlyweb-list] <title>s and other non-component data</span> <span class="sender italic">David King</span></li> <li><ul> <li class="icons-email"><span class="subject"><a href="msg00104.html">[erlyweb-list] Re: <title>s and other non-component...</a></span> <span class="sender italic">Yariv Sadan</span></li> <li><ul> <li class="icons-email"><span class="subject"><a href="msg00105.html">[erlyweb-list] Re: <title>s and other non-compo...</a></span> <span class="sender italic">David King</span></li> <li><ul> <li class="icons-email"><span class="subject"><a href="msg00106.html">[erlyweb-list] Re: <title>s and other non-c...</a></span> <span class="sender italic">Yariv Sadan</span></li> <li><ul> <li class="icons-email"><span class="subject"><a href="msg00107.html">[erlyweb-list] Re: <title>s and other n...</a></span> <span class="sender italic">David King</span></li> <li><ul> <li class="icons-email"><span class="subject"><a href="msg00110.html">[erlyweb-list] Re: <title>s and ot...</a></span> <span class="sender italic">Yariv Sadan</span></li> <li><ul> <li class="icons-email"><span class="subject"><a href="msg00113.html">[erlyweb-list] Re: <title>s an...</a></span> <span class="sender italic">David King</span></li> <li><ul> <li class="icons-email"><span class="subject"><a href="msg00116.html">[erlyweb-list] Re: <title>...</a></span> <span class="sender italic">Yariv Sadan</span></li> <li class="icons-email"><span class="subject"><a href="msg00118.html">[erlyweb-list] Re: <title>...</a></span> <span class="sender italic">David King</span></li> <li class="icons-email"><span class="subject"><a href="msg00119.html">[erlyweb-list] Re: <title>...</a></span> <span class="sender italic">Yariv Sadan</span></li> <li class="icons-email"><span class="subject"><a href="msg00120.html">[erlyweb-list] Re: <title>...</a></span> <span class="sender italic">David King</span></li> </ul> </ul> </ul> </ul> </ul> </ul> </ul> </ul> </div> <div class="overflow msgActions margintopdouble"> <div class="msgReply" > <h2> Reply via email to </h2> <form method="POST" action="/mailto.php"> <input type="hidden" name="subject" value="[erlyweb-list] <title>s and other non-component data"> <input type="hidden" name="msgid" value="ABA5DA1E-EEA4-415D-A9F4-FCEE05F35F8D@ketralnis.com"> <input type="hidden" name="relpath" value="erlyweb@googlegroups.com/msg00102.html"> <input type="submit" value=" David King "> </form> </div> </div> </div> <div class="aside" role="complementary"> <div class="logo"> <a href="/"><img src="/logo.png" width=247 height=88 alt="The Mail Archive"></a> </div> <form class="overflow" action="/search" method="get"> <input type="hidden" name="l" value="erlyweb@googlegroups.com"> <label class="hidden" for="q">Search the site</label> <input class="submittext" type="text" id="q" name="q" placeholder="Search erlyweb"> <input class="submitbutton" name="submit" type="image" src="/submit.png" alt="Submit"> </form> <div class="nav margintop" id="nav" role="navigation"> <ul class="icons font16"> <li class="icons-home"><a href="/">The Mail Archive home</a></li> <li class="icons-list"><a href="/erlyweb@googlegroups.com/">erlyweb - 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