Articles related to technology, how to use software, ways to work around technology problems, install hardware, install software, upgraded software, etc.
Having a framework to automatically run all of your unit tests is important, but in a strongly dynamic language like Python, it can be difficult to find all of the tests to run in a batch. [nose][] makes the whole process much easier, by automatically finding all modules containing unittest.TestCase subclasses, allowing nonsubclassed simple test…
Any administrator who is responsible for one or more MySQL servers has probably run across the indispensable [mytop][], but a similar tool for PostgreSQL is less well known. However, Cosimo Streppone has ported and converted [mytop][] to [pgtop][], a Perl package to provide the same functionality – monitoring of threads, performance, reads and writes per…
Recently I worked on a network installation using Fortinet 200A firewalls. During the process of getting BGP operational with the colo provider they requested information about or BGP prefixes. They requested that we provide the output to “sh ip bgp” or “show ip bgp” to them.
Troel has written a great summary of the SQL standard for the timestamp data type along with its implementation in the big 5 databases (MySQL, PostgreSQL, Microsoft SQL Server, Oracle, and DB2). MySQL It turns out that MySQL does not support sub-second time or date formats. There is a MICROSECOND function in MySQL allowed to…
Rails’ ActiveRecord displays the exact SQL queries it performs into the development log. It is inconvenient to watch this log while you’re working in the `script/console` environment, however, and most advice for redirecting that log to STDOUT seemed not to work. Thanks to [Jamis Buck](http://weblog.jamisbuck.org/2007/1/31/more-on-watching-activerecord “More on watching ActiveRecord”), though, the solution has come to…
I recently ran into an issue with load testing ruby on rails while attempting to post xml data to a ruby appplication via httperf. Everything seemed correct except I could not get httperf to post this data correctly. The issue ended up being that the httperf switch -add-header requires a \n at the end of…
Updated on 12/11/07 Here’s a breakdown of Ruby on Rails IDEs for Windows. Please feel free to add to this by adding a comment to this blog entry. I currently switch between RoRED (writing and navigating code) and Netbeans (GUI debugging) I broke it down in 2 types. Free vs. Commercial Free RoRED RoRED is…
When writing Rake tasks, to get access to all classes (such as the User model in this example) in your app’s environment, you need to depend on the :environment task shown as follows: task :post_user => :environment do end_time = Time.new start_time = end_time – 60 #subtract 60 seconds until start_time > end_time start_time =…
Using this as a guide JLHPBv2: Using Helpers in Models in Rails, you can make a single Module that can be accessed from models, views, and controllers. The helpers automatically created in app/helpers/*_helpers.rb might also be available anywhere as long as you include them. I decided to make the methods in the helper class-scoped…