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| # | Name | Comments | Duration | Released |
|---|---|---|---|---|
| 22 | Eager Loading (revised) | 223 comments | 7 minutes | Mar 20, 2013 |
| 343 | Full-Text Search in PostgreSQL pro | 131 comments | 16 minutes | Apr 17, 2012 |
| 342 | Migrating to PostgreSQL | 137 comments | 8 minutes | Apr 17, 2012 |
| 364 | Active Record Reputation System | 105 comments | 10 minutes | Jul 09, 2012 |
| 16 | Virtual Attributes (revised) | 71 comments | 11 minutes | Jul 20, 2012 |
| 189 | Embedded Association | 83 comments | 14 minutes | Nov 23, 2009 |
| 181 | Include vs Joins | 73 comments | 11 minutes | Sep 28, 2009 |
| 176 | Searchlogic | 96 comments | 13 minutes | Aug 24, 2009 |
| 162 | Tree Based Navigation | 70 comments | 11 minutes | May 18, 2009 |
| 145 | Integrating Active Merchant | 91 comments | 18 minutes | Jan 19, 2009 |
| 57 | Create Model Through Text Field | 59 comments | 5 minutes | Jul 13, 2007 |
| 111 | Advanced Search Form | 105 comments | 7 minutes | May 26, 2008 |