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MPTtree, Hieararchical trees in a database table
  • El Forum
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#106
05-07-2009, 07:31 AM

[eluser]m4rw3r[/eluser]
The reason for not using the parent_id field is that this is an Modified Preorder Tree Traversal model, not an Adjacency Tree model. The advantages of the MPTT is that it is a lot faster in many queries and also makes sure that a node doesn't get orphaned.
The benefit with Adjacency trees are that they are faster when just getting one level of nodes.

Also, I implemented it as a model because I was young and dumb... Wink
When I rewrite it I will make it a library.


Messages In This Thread
MPTtree, Hieararchical trees in a database table - by El Forum - 03-13-2008, 02:15 PM
MPTtree, Hieararchical trees in a database table - by El Forum - 03-14-2008, 01:35 PM
MPTtree, Hieararchical trees in a database table - by El Forum - 03-22-2008, 12:17 PM
MPTtree, Hieararchical trees in a database table - by El Forum - 03-27-2008, 01:25 PM
MPTtree, Hieararchical trees in a database table - by El Forum - 04-06-2008, 04:11 AM
MPTtree, Hieararchical trees in a database table - by El Forum - 04-06-2008, 05:15 AM
MPTtree, Hieararchical trees in a database table - by El Forum - 04-06-2008, 06:27 AM
MPTtree, Hieararchical trees in a database table - by El Forum - 05-04-2008, 11:30 AM
MPTtree, Hieararchical trees in a database table - by El Forum - 05-04-2008, 11:54 AM
MPTtree, Hieararchical trees in a database table - by El Forum - 05-11-2008, 05:49 AM
MPTtree, Hieararchical trees in a database table - by El Forum - 05-11-2008, 06:01 AM
MPTtree, Hieararchical trees in a database table - by El Forum - 05-11-2008, 06:11 AM
MPTtree, Hieararchical trees in a database table - by El Forum - 05-11-2008, 06:35 AM
MPTtree, Hieararchical trees in a database table - by El Forum - 05-16-2008, 03:19 PM
MPTtree, Hieararchical trees in a database table - by El Forum - 05-16-2008, 05:44 PM
MPTtree, Hieararchical trees in a database table - by El Forum - 05-16-2008, 06:07 PM
MPTtree, Hieararchical trees in a database table - by El Forum - 05-16-2008, 07:01 PM
MPTtree, Hieararchical trees in a database table - by El Forum - 05-17-2008, 04:05 AM
MPTtree, Hieararchical trees in a database table - by El Forum - 05-17-2008, 05:19 AM
MPTtree, Hieararchical trees in a database table - by El Forum - 05-17-2008, 05:50 AM
MPTtree, Hieararchical trees in a database table - by El Forum - 05-17-2008, 04:32 PM
MPTtree, Hieararchical trees in a database table - by El Forum - 05-17-2008, 04:51 PM
MPTtree, Hieararchical trees in a database table - by El Forum - 05-20-2008, 10:06 AM
MPTtree, Hieararchical trees in a database table - by El Forum - 05-30-2008, 11:24 AM
MPTtree, Hieararchical trees in a database table - by El Forum - 05-30-2008, 03:12 PM
MPTtree, Hieararchical trees in a database table - by El Forum - 05-30-2008, 03:57 PM
MPTtree, Hieararchical trees in a database table - by El Forum - 05-30-2008, 03:58 PM
MPTtree, Hieararchical trees in a database table - by El Forum - 05-30-2008, 04:08 PM
MPTtree, Hieararchical trees in a database table - by El Forum - 05-30-2008, 04:17 PM
MPTtree, Hieararchical trees in a database table - by El Forum - 05-30-2008, 04:22 PM
MPTtree, Hieararchical trees in a database table - by El Forum - 05-30-2008, 04:24 PM
MPTtree, Hieararchical trees in a database table - by El Forum - 06-11-2008, 12:42 PM
MPTtree, Hieararchical trees in a database table - by El Forum - 08-01-2008, 08:44 AM
MPTtree, Hieararchical trees in a database table - by El Forum - 08-01-2008, 01:05 PM
MPTtree, Hieararchical trees in a database table - by El Forum - 08-01-2008, 02:48 PM
MPTtree, Hieararchical trees in a database table - by El Forum - 08-01-2008, 03:07 PM
MPTtree, Hieararchical trees in a database table - by El Forum - 08-01-2008, 03:15 PM
MPTtree, Hieararchical trees in a database table - by El Forum - 08-01-2008, 03:18 PM
MPTtree, Hieararchical trees in a database table - by El Forum - 08-01-2008, 03:32 PM
MPTtree, Hieararchical trees in a database table - by El Forum - 08-02-2008, 09:38 AM
MPTtree, Hieararchical trees in a database table - by El Forum - 08-02-2008, 09:44 AM
MPTtree, Hieararchical trees in a database table - by El Forum - 08-02-2008, 03:06 PM
MPTtree, Hieararchical trees in a database table - by El Forum - 08-03-2008, 05:07 AM
MPTtree, Hieararchical trees in a database table - by El Forum - 08-18-2008, 10:33 AM
MPTtree, Hieararchical trees in a database table - by El Forum - 08-18-2008, 01:17 PM
MPTtree, Hieararchical trees in a database table - by El Forum - 08-22-2008, 08:13 AM
MPTtree, Hieararchical trees in a database table - by El Forum - 08-22-2008, 11:41 AM
MPTtree, Hieararchical trees in a database table - by El Forum - 09-12-2008, 09:03 PM
MPTtree, Hieararchical trees in a database table - by El Forum - 09-13-2008, 08:24 AM
MPTtree, Hieararchical trees in a database table - by El Forum - 09-23-2008, 12:19 PM
MPTtree, Hieararchical trees in a database table - by El Forum - 09-23-2008, 12:28 PM
MPTtree, Hieararchical trees in a database table - by El Forum - 09-23-2008, 12:33 PM
MPTtree, Hieararchical trees in a database table - by El Forum - 09-23-2008, 12:36 PM
MPTtree, Hieararchical trees in a database table - by El Forum - 09-24-2008, 02:55 AM
MPTtree, Hieararchical trees in a database table - by El Forum - 10-14-2008, 03:58 AM
MPTtree, Hieararchical trees in a database table - by El Forum - 10-14-2008, 06:55 AM
MPTtree, Hieararchical trees in a database table - by El Forum - 10-14-2008, 01:20 PM
MPTtree, Hieararchical trees in a database table - by El Forum - 10-14-2008, 01:34 PM
MPTtree, Hieararchical trees in a database table - by El Forum - 10-14-2008, 04:13 PM
MPTtree, Hieararchical trees in a database table - by El Forum - 10-14-2008, 04:32 PM
MPTtree, Hieararchical trees in a database table - by El Forum - 10-14-2008, 11:31 PM
MPTtree, Hieararchical trees in a database table - by El Forum - 10-14-2008, 11:37 PM
MPTtree, Hieararchical trees in a database table - by El Forum - 10-14-2008, 11:45 PM
MPTtree, Hieararchical trees in a database table - by El Forum - 10-15-2008, 01:17 AM
MPTtree, Hieararchical trees in a database table - by El Forum - 10-15-2008, 09:11 AM
MPTtree, Hieararchical trees in a database table - by El Forum - 10-15-2008, 09:45 AM
MPTtree, Hieararchical trees in a database table - by El Forum - 10-17-2008, 07:12 AM
MPTtree, Hieararchical trees in a database table - by El Forum - 10-28-2008, 12:45 PM
MPTtree, Hieararchical trees in a database table - by El Forum - 11-12-2008, 08:46 AM
MPTtree, Hieararchical trees in a database table - by El Forum - 11-14-2008, 11:30 AM
MPTtree, Hieararchical trees in a database table - by El Forum - 11-14-2008, 11:50 AM
MPTtree, Hieararchical trees in a database table - by El Forum - 11-14-2008, 03:33 PM
MPTtree, Hieararchical trees in a database table - by El Forum - 11-15-2008, 06:41 AM
MPTtree, Hieararchical trees in a database table - by El Forum - 01-05-2009, 02:02 PM
MPTtree, Hieararchical trees in a database table - by El Forum - 01-06-2009, 10:15 AM
MPTtree, Hieararchical trees in a database table - by El Forum - 01-06-2009, 01:44 PM
MPTtree, Hieararchical trees in a database table - by El Forum - 01-08-2009, 01:47 AM
MPTtree, Hieararchical trees in a database table - by El Forum - 01-15-2009, 02:16 PM
MPTtree, Hieararchical trees in a database table - by El Forum - 01-16-2009, 10:21 AM
MPTtree, Hieararchical trees in a database table - by El Forum - 01-16-2009, 11:18 AM
MPTtree, Hieararchical trees in a database table - by El Forum - 01-17-2009, 06:56 AM
MPTtree, Hieararchical trees in a database table - by El Forum - 01-17-2009, 09:17 AM
MPTtree, Hieararchical trees in a database table - by El Forum - 01-29-2009, 09:00 AM
MPTtree, Hieararchical trees in a database table - by El Forum - 04-11-2009, 10:31 AM
MPTtree, Hieararchical trees in a database table - by El Forum - 04-12-2009, 04:28 AM
MPTtree, Hieararchical trees in a database table - by El Forum - 04-12-2009, 04:47 AM
MPTtree, Hieararchical trees in a database table - by El Forum - 04-12-2009, 04:55 AM
MPTtree, Hieararchical trees in a database table - by El Forum - 04-13-2009, 08:11 AM
MPTtree, Hieararchical trees in a database table - by El Forum - 04-13-2009, 08:23 AM
MPTtree, Hieararchical trees in a database table - by El Forum - 04-13-2009, 09:20 AM
MPTtree, Hieararchical trees in a database table - by El Forum - 04-13-2009, 02:04 PM
MPTtree, Hieararchical trees in a database table - by El Forum - 04-13-2009, 06:26 PM
MPTtree, Hieararchical trees in a database table - by El Forum - 04-14-2009, 12:40 AM
MPTtree, Hieararchical trees in a database table - by El Forum - 04-22-2009, 02:17 AM
MPTtree, Hieararchical trees in a database table - by El Forum - 04-22-2009, 03:52 AM
MPTtree, Hieararchical trees in a database table - by El Forum - 04-22-2009, 03:56 AM
MPTtree, Hieararchical trees in a database table - by El Forum - 04-22-2009, 04:24 AM
MPTtree, Hieararchical trees in a database table - by El Forum - 04-28-2009, 05:44 AM
MPTtree, Hieararchical trees in a database table - by El Forum - 05-01-2009, 08:37 PM
MPTtree, Hieararchical trees in a database table - by El Forum - 05-02-2009, 03:34 AM
MPTtree, Hieararchical trees in a database table - by El Forum - 05-02-2009, 04:17 AM
MPTtree, Hieararchical trees in a database table - by El Forum - 05-02-2009, 07:12 AM
MPTtree, Hieararchical trees in a database table - by El Forum - 05-02-2009, 07:43 AM
MPTtree, Hieararchical trees in a database table - by El Forum - 05-02-2009, 10:13 AM
MPTtree, Hieararchical trees in a database table - by El Forum - 05-06-2009, 10:10 PM
MPTtree, Hieararchical trees in a database table - by El Forum - 05-07-2009, 07:31 AM
MPTtree, Hieararchical trees in a database table - by El Forum - 05-11-2009, 09:16 AM
MPTtree, Hieararchical trees in a database table - by El Forum - 05-12-2009, 12:34 PM
MPTtree, Hieararchical trees in a database table - by El Forum - 05-15-2009, 09:31 AM
MPTtree, Hieararchical trees in a database table - by El Forum - 08-12-2009, 02:37 AM
MPTtree, Hieararchical trees in a database table - by El Forum - 08-12-2009, 02:08 PM
MPTtree, Hieararchical trees in a database table - by El Forum - 08-21-2009, 09:20 AM
MPTtree, Hieararchical trees in a database table - by El Forum - 09-07-2009, 05:19 PM
MPTtree, Hieararchical trees in a database table - by El Forum - 09-10-2009, 12:43 PM
MPTtree, Hieararchical trees in a database table - by El Forum - 09-23-2009, 02:13 AM
MPTtree, Hieararchical trees in a database table - by El Forum - 11-13-2009, 02:39 PM
MPTtree, Hieararchical trees in a database table - by El Forum - 11-15-2009, 11:21 AM
MPTtree, Hieararchical trees in a database table - by El Forum - 11-16-2009, 04:06 AM
MPTtree, Hieararchical trees in a database table - by El Forum - 11-16-2009, 11:11 AM
MPTtree, Hieararchical trees in a database table - by El Forum - 11-17-2009, 09:59 AM
MPTtree, Hieararchical trees in a database table - by El Forum - 11-17-2009, 03:54 PM
MPTtree, Hieararchical trees in a database table - by El Forum - 03-17-2010, 12:18 PM
MPTtree, Hieararchical trees in a database table - by El Forum - 06-09-2010, 10:07 AM
MPTtree, Hieararchical trees in a database table - by El Forum - 01-13-2011, 05:11 AM
MPTtree, Hieararchical trees in a database table - by El Forum - 03-23-2011, 03:36 AM
MPTtree, Hieararchical trees in a database table - by El Forum - 05-26-2011, 12:25 PM
MPTtree, Hieararchical trees in a database table - by El Forum - 05-31-2011, 11:35 AM
MPTtree, Hieararchical trees in a database table - by El Forum - 05-31-2011, 11:46 AM
MPTtree, Hieararchical trees in a database table - by El Forum - 05-31-2011, 11:55 AM
MPTtree, Hieararchical trees in a database table - by El Forum - 05-31-2011, 04:05 PM
MPTtree, Hieararchical trees in a database table - by El Forum - 06-28-2011, 05:21 AM
MPTtree, Hieararchical trees in a database table - by El Forum - 06-28-2011, 06:50 AM
MPTtree, Hieararchical trees in a database table - by El Forum - 06-28-2011, 08:12 AM
MPTtree, Hieararchical trees in a database table - by El Forum - 06-28-2011, 09:13 AM
MPTtree, Hieararchical trees in a database table - by El Forum - 06-28-2011, 09:58 AM
MPTtree, Hieararchical trees in a database table - by El Forum - 06-28-2011, 10:28 AM
MPTtree, Hieararchical trees in a database table - by El Forum - 06-28-2011, 10:42 AM
MPTtree, Hieararchical trees in a database table - by El Forum - 04-22-2012, 05:04 PM
MPTtree, Hieararchical trees in a database table - by El Forum - 04-23-2013, 06:00 AM
MPTtree, Hieararchical trees in a database table - by El Forum - 10-01-2013, 09:36 AM



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