var draggable = (disabled) ? false : true;
Backup mysqldump -u devise -ppassword -h 127.0.0.1 database_name > backup.sql Restore mysql -u -ppassword database_name < backup.sql
Lately I’ve spoken to numerous entrepreneurs all keen to ensure that their new website can rapidly scale to cater for the massive amount of traffic that their brilliant idea will bring in. Thought I would write up a bit of advice from the trenches. Scaling is easy and incredibly difficult at the same time. Easy in that there is plenty of examples scattered around the web how various people solved their problem. Just use technology X, Y and Z => problem solved. The hard bit; your problem is most likely similar to, but not exactly the same as someone else. …
Unfortunately one cannot upgrade from OSX Server 10.5.x straight to Lion Server. There are two choices Upgrade to Snow Leopard Server (if you can find a copy & are prepared to shell out $400 or so. Then upgrade to Lion via the app store. Rebuild server as Snow Leopard workstation then upgrade to Lion server vai the app store Option 1 is the easiest & less painful way to go. You can keep most of your server settings. But it costs $400 or so. Option 2 is a bit more complex, but you save $400. Here is how I did …
Been using devise for a number of projects, happy with the authentication process. Cancan (thanks Ryan Bates) allows role based permission management. Once you understand how things work together, it’s quite easy to setup and test. Found these blog posts helpful. http://www.tonyamoyal.com/2010/07/28/rails-authentication-with-devise-and-cancan-customizing-devise-controllers/comment-page-1/#comments http://www.tonyamoyal.com/2010/09/29/rails-authentication-with-devise-and-cancan-part-2-restful-resources-for-administrators/ There are a few gaps though, that are filled in here. http://stackoverflow.com/questions/5739419/checkboxes-are-getting-but-not-putting-many-to-many-roles
The Turtle Trading system as taught by Richard Dennis supposedly returns an 80% annualized return. Well.. that sounds interesting & worth testing. I’ve build a simple database of historical stock prices using yahoo finance. Let’s see how this goes. Update – July 2011: Could not get profitable backtesting so canned automated project. However profitable in real trading (about +20% pa) using pretty much the same system, seems “human feel” actually plays a big part, for me at any rate.
I think this is the most boring theme I could find. Super!
Moved to WordPress from a self-coded rails site. Still hosted at Dreamhost. Why? – use the best tool for the job. More to come..