How to do cascading deletes with Ruby on Rails

Easy and auto-magically done with some Rails goodness:

class User < ActiveRecord::Base
      has_many :user_friends, :dependent => :destroy
end

Deleting a User will then perform a cascaded delete of the dependent user_friends when the User is destroyed.

posted on 2013-04-25 00:00:00 UTC

GIT the funk out!

So you've changed some code, but aren't sure about it and would like to have some peers take a look without affecting the existing stream of development?

The command-line is your friend.

git checkout -b 2bshared (create a local branch and switch to it)

git status (take a...

posted on 2013-01-27 00:00:00 UTC

Timezones, HTML select drop-down, SQL to insert into database

Here's a timezone drop-down select for HTML ready to copy/paste into your code.

<select name="timezone" id="ddtz"> <option value="-12.0">(GMT -12:00) Eniwetok, Kwajalein</option> <option value="-11.0">(GMT -11:00) Midway Island, Samoa</option> <option value="... <p class="r"><i>posted on 2012-06-01 00:00:00 UTC</i> </p> <table> <tr><th>Topic</th><td><a href="/blog_posts/topic/3-Sandbox">Sandbox</a></td></tr> <tr><th>Tags</th><td><a href="/blog_posts/tag/Html">Html</a>, <a href="/blog_posts/tag/Snippits">Snippits</a></td></tr> </table> <a href="/blog_posts/8-Timezones-HTML-select-drop-down-SQL-to-insert-into-database" class="btn btn-primary r">Read more</a><div class="clear"></div> <p> </p> <hr/> <p> </p> <div class="clear"></div> </div> <div id="bp_7"> <h2><a href="/blog_posts/7-How-to-redirect-to-another-web-page-using-Javascript">How to redirect to another web page using Javascript</a></h2> <p> </p> <p>Learn how to redirect to another page using Javascript.</p> <p><code> window.location.href = "http://xyz.com/page"; </code></p> <p>If you want to open the page in a new window use:</p> <p><code> window.open("http://xyz.com/page"); </code></p> <p>Nice and simple.</p> <p class="r"><i>posted on 2012-06-01 00:00:00 UTC</i> </p> <table> <tr><th>Topic</th><td><a href="/blog_posts/topic/3-Sandbox">Sandbox</a></td></tr> <tr><th>Tags</th><td><a href="/blog_posts/tag/Javascript">Javascript</a></td></tr> </table> <a href="/blog_posts/7-How-to-redirect-to-another-web-page-using-Javascript" class="btn btn-primary r">Read more</a><div class="clear"></div> <p> </p> <hr/> <p> </p> <div class="clear"></div> </div> <div id="bp_6"> <h2><a href="/blog_posts/6-Disclaimers-and-Notices">Disclaimers and Notices</a></h2> <p> </p> <p>If you read the terms on practically any website, product or service these days you're agreeing to a forfeit a ridiculous number or rights and freedoms, entering into binding contracts and possibly agreeing to defend and pay their own legals costs.</p> <p>Have you read the terms on Pintrest, Facebook and other h... <p class="r"><i>posted on 2012-05-28 00:00:00 UTC</i> </p> <table> <tr><th>Topic</th><td><a href="/blog_posts/topic/3-Sandbox">Sandbox</a></td></tr> <tr><th>Tags</th><td></td></tr> </table> <a href="/blog_posts/6-Disclaimers-and-Notices" class="btn btn-primary r">Read more</a><div class="clear"></div> <p> </p> <hr/> <p> </p> <div class="clear"></div> </div> <div class="blogPages"> <div class="pagination"><ul><li class="prev disabled"><span>← Previous</span></li> <li class="active"><span>1</span></li> <li><a rel="next" href="/blog_posts?page=2">2</a></li> <li class="next"><a rel="next" href="/blog_posts?page=2">Next →</a></li></ul></div> </div> </div><!--/span--> </div><!--/row--> <hr> </div><!--/.fluid-container--> <footer> <div id="footer"> <ul> <li><a href="http://sean.wenzel.net/about">about</a></li> <li><a href="http://sean.wenzel.net/contact_requests">contact</a></li> <li><a href="http://sean.wenzel.net/legal" rel="nofollow">legal, terms & privacy</a></li> </ul> <div class="clear"></div> <p>© 1996 to 2013 Sean Wenzel - All rights reserved.</p>   </div> </footer> <script type="text/javascript"> </script> </body> </html>