http://www.mygrid.org.uk/dev/blog The developers of myGrid tell of their quest of the code Fri, 16 Dec 2011 12:37:24 +0000 http://backend.userland.com/rss092 en Here are the steps I needed to install ruby 1.8, rails 2.3, sqlserver to run our https://github.com/myGrid/methodbox codebase on a Windows 7 platform and run it all under IIS. It should also work for any rails 2 or 3 project.  If you use rmagick or libxml-ruby then pay attention ... http://www.mygrid.org.uk/dev/blog/?p=41 Been doing a lot of rails work on windows recently and ran into some issues that needed solved.  Just like on Unix, to get the RMagick gem working on a windows platform you need to install ImageMagick.  Go to http://www.imagemagick.org/script/binary-releases.php?ImageMagick=uteqfietdab37ghqrvfuvoul55#windows and download http://www.imagemagick.org/download/binaries/ImageMagick-6.7.3-7-Q16-windows-dll.exe Double click and go through the installer, selecting ... http://www.mygrid.org.uk/dev/blog/?p=40 Ubuntu Lucid Lynx (10.04) does not have the sun java repositories available by default.  You need to add them like this: sudo add-apt-repository "deb http://archive.canonical.com/ lucid partner" Then update the packages available: sudo apt-get update Then you can install Sun's (Oracles?) Java sudo apt-get install sun-java6-jdk sun-java6-jre sun-java6-plugin http://www.mygrid.org.uk/dev/blog/?p=39 If you get the uninitialized constant MysqlCompat::MysqlRes error when trying to run your Rails app all the evidence points to it being a 32 v 64 bit issue.  However, I had built mysql for the x86_64 architecture and the mysql gem installed was also for 64 bits.  So why was ... http://www.mygrid.org.uk/dev/blog/?p=38 We use the tabifier javascript from barelyFitz in a few places in MethodBox.  However, I wanted it to have a different, more descriptive tooltip than the tab title.  The default code doesn't seem to do this so I added a couple of little changes to make this happen. You can see ... http://www.mygrid.org.uk/dev/blog/?p=37 Had an array in javascript and tried to loop over it using for (x in array){ ...some code } I was confused why it seemed to have lots more members than I had put in with contents that seemed to be functions.  So I used console.log and firebug to print out the array members ... http://www.mygrid.org.uk/dev/blog/?p=36 I always seem to have some difficulty getting the Rserve component of the R stats library up and running on OSX.  Installing it via install.packages("rserve") from within R  appears to work but when running R CMD Rserve I usually get some sort of error like: /Library/Frameworks/R.framework/Resources/bin/Rcmd: line 62: exec: Rserve: not ... http://www.mygrid.org.uk/dev/blog/?p=34 Ok, here's one you don't see every day. Importing a mysql dumpfile results in "ERROR 1153 (08S01) at line 265: Got a packet bigger than 'max_allowed_packet' bytes" Errm. Log in to a mysql console, enter the magic commands: set global net_buffer_length=1000000; set global max_allowed_packet=1000000000; Modify your import to include the command: --max_allowed_packet=100M so you have something like mysql --max_allowed_packet=100M -u ... http://www.mygrid.org.uk/dev/blog/?p=33 We needed a forum for one of our web projects written in rails and a quick google revealed Savage Beast.  It seemed to fit the bill although needed some css tweeks to co-exist with what we currently have.  However, when clicking on its RSS feed icon it threw an ActionController::Request.relative_url_root ... http://www.mygrid.org.uk/dev/blog/?p=32 URLs pointing to resources in a Rails app tend to look like www.somesite.com/people/1 Add this to your model: def to_param "#{id}-#{title.downcase.gsub(/[^[:alnum:]]/,'-')}".gsub(/-{2,}/,'-') end Where title is whatever you want to appear after the id and you will get URLs like www.somesite.com/people/1-Ian More info from here http://www.mygrid.org.uk/dev/blog/?p=31