Using Module Mixins to Extend Classes and Objects in Ruby
The module and class below demonstrate how to use instance methods and class methods from "module mixins". The thing to remember is scope. For instance, to use class methods within instance methods you need to call them from the class itself. This is acco...
Written by Sean Behan on 06/17/2012
How to Fix Pypi Upload failed (403): Invalid or non-existent authentication information.
If you run into authentication failure when trying to upload packages
Submitting dist/ to https://upload.pypi.org/legacy/
Upload failed (403): Invalid or non-existent authentication information.
error: Upload failed (403): Invalid or non-existent...
Written by Sean Behan on 03/02/2017
Problem slash Bug in Rails with attr_accessor and Datetime Select Fields
Looks like there is a problem with using the attr_accessor method with datetime form fields http://dev.rubyonrails.org/ticket/8983 In Rails 2.3.2, for me at least, the problem seems to be popping up again. While trying to process a date for credit card v...
Written by Sean Behan on 06/17/2012
Disk Usage Information on Mac OS X
Get disk usage information about the Desktop
$ du -h -d 0 Desktop
14G Desktop
Information about how much free space is available on computer
$ df -lh
Filesystem Size Used Avail Capacity Mounted on
/dev/disk0s2 111Gi 109Gi 2.3Gi 98% /
...
Written by Sean Behan on 06/17/2012
Select Distinct in Rails with Active Record
User.find :all, :select => "DISTINCT occupation"
Written by Sean Behan on 06/17/2012
