I have a HTML list of about 500 items and a "filter" box above it. I started by using jQuery to filter the list when I typed a letter (timing code added later): $('#filter').keyup( function() { var jqStart = (new Date).getTime(); var search = $(this).val().toLowerCase(); var $list = $('ul.ablist > li'); $list.each( function() { if ( $(this).text().toLowerCase().indexOf(search) === -1 ) $(this).hide(); else $(this).show(); } ); console.log('Time: ' + ((new Date).getTime() - jqStart)); } ); However, there was a couple of seconds delay after typing each letter (particularly the first letter). So I thought it may be slightly quicker if I used plain Javascript (I read recently that jQuery's each function is particularly slow). Here's my JS equivalent: document.getElementById('filter').addEventListener( 'keyup', function () { var jsStart = (new Date).getTime()...
I've been trying to decide how I would implement this. On one hand, Symfony2 provides decent prod caching, so if you're not destructively modifying your database schema (removing columns or tables, etc), you can probably get away with just changing the schema, deploying from your repo, then clearing your prod cache. That's how I handle things most of the time.
ReplyDeleteOn the other hand, if you DO want to go into maintenance mode, you'll want a solution that has minimal load on the framework (ie, you probably don't want to fire up the kernel), or you're defeating the purpose anyway: taking the load off the framework while you muck with things.
If it were me, I'd probably write a simple maintenance script that just sets a 503 header, maybe serves up some static html (pregenerated from my site templates) and sends it back to the user, then use some conditional logic in my app.php to use that when I should be in maintenance mode. It's ugly, but it works.
Please look at capifony http://capifony.org/
ReplyDeleteIt has excellent support for Symfony2.