Connecting an iOS device to a mixed 802.11b/n WiFi network

In a recent visit to home I was presented with an old problem that had become a real annoyance. The iOS devices owned by the family (minus the iPad) including my iPhone would not connect to the house WiFi network. They would happily detect them but the moment they tried to connect they would time out.

It took a bit of pecking around and trial and error but I found a single change that then allowed all the devices to connect.

It boils down to only allowing 802.11b to operate on the 2.4GHz band instead of the default dual b/n. It see,ms the iPhone and iPod Touch devices do not play nicely with dual use of that band by the b and n standards.

Playing with Regex on OSX

RegExhibit

If you've ever been stuck with the problem of trying to build anything but a simple regular expression you know how painful it can be getting it to match just what you want.

When developing for .NET on Windows I was introduced to a brilliant free tool called Rad Software Regex Designer that gave you the ability to provide an example of the text you wanted to match and an area to slowly build up your regular expression while getting instant feedback on what it was doing. It even has dialogs to add specific regular expression commands in case your proficiency with regular expressions isn't high or you just forgot how to create a non matching group. After moving to OSX for work I went looking for a similar tool for the Mac. And after a while I found it.

RegExhibit is a GUI tool of OSX that uses the Perl regular expression library to help you build regular expressions. This should be fine for any other languages that use a PCRE library but make sure you check before deploying. The core part of the program are two text areas. you place an example of the text you want to match into the lower area and build up your regular expression in the top are. There are even tabs for doing matches and splits but you'll likely find yourself in the match tab for most of time. However it doesn't offer the same built in dialogs like the Rad Software Regex Designer so make sure you've got a regular expression reference handy.

This is a great tool that has saved my sanity several times already and I do recommend to anyone that has to play with regular expressions and is developing on the Mac.

Adding Attachments with ActionMailer

Well recently I had the fun task of using Ruby on Rails' ActionMailer to create some automated emails to send out to users. At some point it was decided to attach the original email we received from the user to the notification email we were sending out to the user.

Now you would think that using the attachments method provided by ActionMailer would make it a easy as just giving it the file you wanted to add. Turns out it's like that for Ruby on Rails 3, not for 2.

The most infuriating thing was that if you use the attachments method then the method you called attachments from will not render the default view template it would normally. This means you have to explicitly call the render method.

Instead of putting it out all nicely I'll just link to a blog post from ELCtech.com that explains it well. http://www.elctech.com/ -- [ActionMailer] Multipart emails with attachments

Trying out the iPhone app

I've only got an iPod Touch but thought I'd see what this app is like.

Maybe I'll get more use out of it once I get an iPhone.

My Borderlands Troubles

Being a Good Consumer

Last week I purchased the Borderlands DLC, Zombie Island of Dr Ned, for my PC Retail version of Borderlands. After purchasing it I was informed I would also have to install the 1.1 update so that was downloaded as well.

We've Got a Problem

My first attempt to update Borderlands resulted in a catch-all error dialog informing me that the update had failed. After looking on the Gearbox forums I got pointed at running the update from the command prompt using the "msiexec" program. http://gbxforums.gearboxsoftware.com/showthread.php?t=87233 - (FIX) Fatal Error:Installation ended prematurely because of an error. This resulted in the patch doing the same "Gathering information about your computer" routine as the original patch attempt and silently exiting without doing anything. A quick check on the "msiexec" program's help dialog showed a logging flag which I set and posted the output of that and the dxdiag output on the Gearbox forums. http://gbxforums.gearboxsoftware.com/showthread.php?p=1721935 - Unable to Install Patch or Zombie DLC - Windows 7 - Error 1603

You Didn't. Did You?

This is when things got interesting. Soon after I read a new post of someone having a similar problem as me and posted a suggestion to run the "msiexec" program with the logging flag set. A reply post by another member to mine said that would be pointless as "we know where the patch is try to write to" This gave me an idea which prompted me to look through the "msiexec" log to try and answer. A quick search for the drive that I installed Borderlands to (E:) found nothing. A search for the 32 and 64 bit Program Files directories on the C drive found both. Now my question was a pretty simple one, did the patch and DLC require that the game be installed in the Program Files directory on the C drive? A question in the FIX thread brought no answer after several days so I decided to give it a go and reinstalled Borderlands to my "C:\Program Files(x86)\" folder.

You Did

And guess what, the patch and DLC installed without a hitch.

For a game developer to not allow the patch to be installed to wherever the program has been installed is just unacceptable when every other game I have patched has never required it.